NZ616457B2 - Fused imidazole derivatives useful as ido inhibitors - Google Patents
Fused imidazole derivatives useful as ido inhibitors Download PDFInfo
- Publication number
- NZ616457B2 NZ616457B2 NZ616457A NZ61645712A NZ616457B2 NZ 616457 B2 NZ616457 B2 NZ 616457B2 NZ 616457 A NZ616457 A NZ 616457A NZ 61645712 A NZ61645712 A NZ 61645712A NZ 616457 B2 NZ616457 B2 NZ 616457B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- imidazo
- isoindolyl
- ethyl
- hydroxy
- ethanol
- Prior art date
Links
- 230000002401 inhibitory effect Effects 0.000 title abstract description 53
- 239000003112 inhibitor Substances 0.000 title abstract description 30
- 229940041158 antibacterial for systemic use Imidazole derivatives Drugs 0.000 title description 2
- 229940042051 antimycotic for systemic use Imidazole derivatives Drugs 0.000 title description 2
- 229940093910 gyncological antiinfectives Imidazole derivatives Drugs 0.000 title description 2
- 229940079865 intestinal antiinfectives Imidazole derivatives Drugs 0.000 title description 2
- 150000002460 imidazoles Chemical class 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims abstract description 210
- 239000002246 antineoplastic agent Substances 0.000 claims abstract description 35
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 24
- -1 4-imidazolyl Chemical group 0.000 claims description 373
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 342
- 229910052739 hydrogen Inorganic materials 0.000 claims description 91
- 239000001257 hydrogen Substances 0.000 claims description 90
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 83
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 68
- 125000000904 isoindolyl group Chemical group C=1(NC=C2C=CC=CC12)* 0.000 claims description 62
- 125000001072 heteroaryl group Chemical group 0.000 claims description 58
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 48
- 125000002950 monocyclic group Chemical group 0.000 claims description 47
- 125000000171 (C1-C6) haloalkyl group Chemical group 0.000 claims description 44
- 229910052736 halogen Inorganic materials 0.000 claims description 43
- 150000002367 halogens Chemical group 0.000 claims description 43
- 125000006714 (C3-C10) heterocyclyl group Chemical group 0.000 claims description 42
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 38
- 125000003118 aryl group Chemical group 0.000 claims description 38
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 37
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 37
- HPXRVTGHNJAIIH-UHFFFAOYSA-N Cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims description 36
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 36
- 125000000623 heterocyclic group Chemical group 0.000 claims description 34
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 claims description 34
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 34
- TUCNEACPLKLKNU-UHFFFAOYSA-N ethanone Chemical compound C[C]=O TUCNEACPLKLKNU-UHFFFAOYSA-N 0.000 claims description 30
- 239000011780 sodium chloride Substances 0.000 claims description 29
- PNYPJSJTDDEXRR-UHFFFAOYSA-N 5H-imidazo[5,1-a]isoindole Chemical compound C1=CC=C2C3=CN=CN3CC2=C1 PNYPJSJTDDEXRR-UHFFFAOYSA-N 0.000 claims description 26
- 125000000217 alkyl group Chemical group 0.000 claims description 25
- 150000003839 salts Chemical class 0.000 claims description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 22
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 22
- NQRYJNQNLNOLGT-UHFFFAOYSA-N piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 claims description 22
- 125000003386 piperidinyl group Chemical group 0.000 claims description 22
- 239000003814 drug Substances 0.000 claims description 21
- KWOLFJPFCHCOCG-UHFFFAOYSA-N methylphenylketone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 claims description 20
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 19
- KXDHJXZQYSOELW-UHFFFAOYSA-M carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 17
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 claims description 17
- 210000004443 Dendritic Cells Anatomy 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 125000004043 oxo group Chemical group O=* 0.000 claims description 15
- 125000006552 (C3-C8) cycloalkyl group Chemical group 0.000 claims description 14
- 230000000973 chemotherapeutic Effects 0.000 claims description 14
- 125000004122 cyclic group Chemical group 0.000 claims description 14
- 125000005418 aryl aryl group Chemical group 0.000 claims description 13
- KXDAEFPNCMNJSK-UHFFFAOYSA-N benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 claims description 13
- 229960004397 Cyclophosphamide Drugs 0.000 claims description 12
- CMSMOCZEIVJLDB-UHFFFAOYSA-N Cyclophosphamide Chemical compound ClCCN(CCCl)P1(=O)NCCCO1 CMSMOCZEIVJLDB-UHFFFAOYSA-N 0.000 claims description 12
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 12
- 229910052717 sulfur Inorganic materials 0.000 claims description 11
- 102000004190 Enzymes Human genes 0.000 claims description 10
- 108090000790 Enzymes Proteins 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 9
- 239000003443 antiviral agent Substances 0.000 claims description 9
- DNUTZBZXLPWRJG-UHFFFAOYSA-M piperidine-1-carboxylate Chemical compound [O-]C(=O)N1CCCCC1 DNUTZBZXLPWRJG-UHFFFAOYSA-M 0.000 claims description 9
- 108090001123 antibodies Proteins 0.000 claims description 8
- 102000004965 antibodies Human genes 0.000 claims description 8
- 125000004429 atoms Chemical group 0.000 claims description 8
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 8
- 150000002500 ions Chemical class 0.000 claims description 8
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 claims description 7
- CKJNUZNMWOVDFN-UHFFFAOYSA-N methanone Chemical compound O=[CH-] CKJNUZNMWOVDFN-UHFFFAOYSA-N 0.000 claims description 7
- 239000002254 cytotoxic agent Substances 0.000 claims description 6
- 231100000599 cytotoxic agent Toxicity 0.000 claims description 6
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 6
- RCINICONZNJXQF-MZXODVADSA-N Intaxel Chemical compound O([C@@H]1[C@@]2(C[C@@H](C(C)=C(C2(C)C)[C@H](C([C@]2(C)[C@@H](O)C[C@H]3OC[C@]3([C@H]21)OC(C)=O)=O)OC(=O)C)OC(=O)[C@H](O)[C@@H](NC(=O)C=1C=CC=CC=1)C=1C=CC=CC=1)O)C(=O)C1=CC=CC=C1 RCINICONZNJXQF-MZXODVADSA-N 0.000 claims description 5
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- YIYZHARUXWKUEN-UHFFFAOYSA-N benzenesulfonamide Chemical compound NS(=O)(=O)C1=CC=CC=C1.NS(=O)(=O)C1=CC=CC=C1 YIYZHARUXWKUEN-UHFFFAOYSA-N 0.000 claims description 5
- 125000002883 imidazolyl group Chemical group 0.000 claims description 5
- 239000003419 rna directed dna polymerase inhibitor Substances 0.000 claims description 5
- 229930003347 taxol Natural products 0.000 claims description 5
- 125000000335 thiazolyl group Chemical group 0.000 claims description 5
- JTEGQNOMFQHVDC-NKWVEPMBSA-N 4-amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-1,2-dihydropyrimidin-2-one Chemical compound O=C1N=C(N)C=CN1[C@H]1O[C@@H](CO)SC1 JTEGQNOMFQHVDC-NKWVEPMBSA-N 0.000 claims description 4
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- YMARZQAQMVYCKC-OEMFJLHTSA-N Amprenavir Chemical compound C([C@@H]([C@H](O)CN(CC(C)C)S(=O)(=O)C=1C=CC(N)=CC=1)NC(=O)O[C@@H]1COCC1)C1=CC=CC=C1 YMARZQAQMVYCKC-OEMFJLHTSA-N 0.000 claims description 4
- XPOQHMRABVBWPR-ZDUSSCGKSA-N Efavirenz Chemical compound C([C@]1(C2=CC(Cl)=CC=C2NC(=O)O1)C(F)(F)F)#CC1CC1 XPOQHMRABVBWPR-ZDUSSCGKSA-N 0.000 claims description 4
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- NQDJXKOVJZTUJA-UHFFFAOYSA-N Nevirapine Chemical compound C12=NC=CC=C2C(=O)NC=2C(C)=CC=NC=2N1C1CC1 NQDJXKOVJZTUJA-UHFFFAOYSA-N 0.000 claims description 4
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- HBOMLICNUCNMMY-XLPZGREQSA-N Zidovudine Chemical compound O=C1NC(=O)C(C)=CN1[C@@H]1O[C@H](CO)[C@@H](N=[N+]=[N-])C1 HBOMLICNUCNMMY-XLPZGREQSA-N 0.000 claims description 4
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- COVZYZSDYWQREU-UHFFFAOYSA-N 1,4-Butanediol, dimethanesulfonate Chemical compound CS(=O)(=O)OCCCCOS(C)(=O)=O COVZYZSDYWQREU-UHFFFAOYSA-N 0.000 claims description 3
- GWFOVSGRNGAGDL-FSDSQADBSA-N 2-amino-9-[(1R,2R,3S)-2,3-bis(hydroxymethyl)cyclobutyl]-3H-purin-6-one Chemical compound C1=2NC(N)=NC(=O)C=2N=CN1[C@@H]1C[C@H](CO)[C@H]1CO GWFOVSGRNGAGDL-FSDSQADBSA-N 0.000 claims description 3
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- 101700019063 CCR6 Proteins 0.000 claims description 3
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 3
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- NRUKOCRGYNPUPR-QBPJDGROSA-N (5S,5aR,8aR,9R)-5-[[(2R,4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-thiophen-2-yl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-9-(4-hydroxy-3,5-dimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-[2]benzofuro[6,5-f][1,3]benzodioxol-8-one Chemical compound COC1=C(O)C(OC)=CC([C@@H]2C3=CC=4OCOC=4C=C3[C@@H](O[C@H]3[C@@H]([C@@H](O)[C@@H]4O[C@@H](OC[C@H]4O3)C=3SC=CC=3)O)[C@@H]3[C@@H]2C(OC3)=O)=C1 NRUKOCRGYNPUPR-QBPJDGROSA-N 0.000 claims description 2
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- BCNZYOJHNLTNEZ-UHFFFAOYSA-N tert-butyldimethylsilyl chloride Chemical compound CC(C)(C)[Si](C)(C)Cl BCNZYOJHNLTNEZ-UHFFFAOYSA-N 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 125000005958 tetrahydrothienyl group Chemical group 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 125000005304 thiadiazolidinyl group Chemical group 0.000 description 1
- 125000005305 thiadiazolinyl group Chemical group 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000004496 thiazol-5-yl group Chemical group S1C=NC=C1* 0.000 description 1
- 125000001984 thiazolidinyl group Chemical group 0.000 description 1
- 125000002769 thiazolinyl group Chemical group 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000005301 thienylmethyl group Chemical group [H]C1=C([H])C([H])=C(S1)C([H])([H])* 0.000 description 1
- 125000004568 thiomorpholinyl group Chemical group 0.000 description 1
- 239000000196 tragacanth Substances 0.000 description 1
- 235000010487 tragacanth Nutrition 0.000 description 1
- 150000004654 triazenes Chemical class 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000002306 tributylsilyl group Chemical group C(CCC)[Si](CCCC)(CCCC)* 0.000 description 1
- HHBXWXJLQYJJBW-UHFFFAOYSA-M triphenyl(propan-2-yl)phosphanium;iodide Chemical compound [I-].C=1C=CC=CC=1[P+](C=1C=CC=CC=1)(C(C)C)C1=CC=CC=C1 HHBXWXJLQYJJBW-UHFFFAOYSA-M 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 125000005455 trithianyl group Chemical group 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- YZCKVEUIGOORGS-NJFSPNSNSA-N tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 1
- 229960001322 trypsin Drugs 0.000 description 1
- 239000012588 trypsin Substances 0.000 description 1
- 230000001173 tumoral Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000003827 upregulation Effects 0.000 description 1
- 238000002255 vaccination Methods 0.000 description 1
- OGWKCGZFUXNPDA-XQKSVPLYSA-N vincristine Chemical compound C([N@]1C[C@@H](C[C@]2(C(=O)OC)C=3C(=CC4=C([C@]56[C@H]([C@@]([C@H](OC(C)=O)[C@]7(CC)C=CCN([C@H]67)CC5)(O)C(=O)OC)N4C=O)C=3)OC)C[C@@](C1)(O)CC)CC1=C2NC2=CC=CC=C12 OGWKCGZFUXNPDA-XQKSVPLYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 230000003612 virological Effects 0.000 description 1
- 235000012711 vitamin K3 Nutrition 0.000 description 1
- 239000011652 vitamin K3 Substances 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N β-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
Classifications
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- A61K31/4164—1,3-Diazoles
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Abstract
Presently provided are IDO inhibitors and pharmaceutical compositions thereof, useful for modulating an activity of indoleamine 2,3-dioxygenase; treating indoleamine 2,3-dioxygenase (IDO) mediated inimunosuppression; treating a medical conditions that benefit from the inhibition of enzymatic activity of indoleamine-2,3-dioxygenase; enhancing the effectiveness of an anti-cancer treatment comprising administering an anti-cancer agent; treating tumor-specific immunosuppression associated with cancer; and treating immunosupression associated with an infectious disease. In one embodiment the compound is 1-(4-(1-hydroxy-2-(5H-imidazo[5,1-a]isoindol-5-yl)ethyl)piperidin-I-yl)-2-(3-hydroxyphenyl)ethanone. y of indoleamine-2,3-dioxygenase; enhancing the effectiveness of an anti-cancer treatment comprising administering an anti-cancer agent; treating tumor-specific immunosuppression associated with cancer; and treating immunosupression associated with an infectious disease. In one embodiment the compound is 1-(4-(1-hydroxy-2-(5H-imidazo[5,1-a]isoindol-5-yl)ethyl)piperidin-I-yl)-2-(3-hydroxyphenyl)ethanone.
Description
FUSED IMIDAZOLE DERIVATIVES USEFUL AS IDO INHIBITORS
Cross-Reference to Related Applications
This ation claims the benefit of the filing date of US. Provisional Application
Serial No. 61/475,788, filed April 15, 2011, which is hereby incorporated by nce in its
BACKGROUND OF THE INVENTION
Field of the ion
The present disclosure relates to compounds and methods for inhibition of
indoleamine 2,3-dioxygenase; r the disclosure relates to method of treatment of
diseases and disorders mediated by indoleamine 2,3—dioxygenase.
Summary of the d Art
Tryptophan (Trp) is an essential amino acid required for the biosynthesis of proteins,
niacin and the neurotransmitter oxytryptamine (serotonin). The enzyme indoleamine
2,3—dioxygenase (also known as INDO or IDO) catalyzes the first and rate limiting step in the
degradation of L-tryptophan to N—formyl-kynurenine. In human cells, IFN—y stimulation
induces activation of IDO, which leads to a depletion of Trp, thereby arresting the growth of
pendent intracellular pathogens such as Toxoplasma gondii and Chlamydia
trachomatis. IDO activity also has an antiproliferative effect on many tumor cells, and IDO
induction has been observed in viva during rejection of allogeneic tumors, indicating a
possible role for this enzyme in the tumor ion process.
It has been observed that HeLa cells co—cultured with peripheral blood cytes
(PBLs) acquire an immunoinhibitory phenotype through up-regulation of IDO activity. A
reduction in PBL proliferation upon treatment with interleukin-2 (IL-2) was believed to result
from IDO released by the tumor cells in response to IFN—y secretion by the PBLs. This effect
was reversed by treatment with l-methyl-tryptophan (lMT), a specific IDO inhibitor. It was
proposed that IDO activity in tumor cells may serve to impair antitumor responses (Logan, et
al., 2002, Immunology, 105: 478—87).
Several lines of evidence suggest that IDO is involved in induction of immune
tolerance. Studies of mammalian pregnancy, tumor resistance, chronic infections and
autoimmune diseases have shown that cells expressing IDO can suppress T—cell responses
and promote tolerance. Accelerated Trp catabolism has been observed in diseases and
disorders associated with cellular immune activation, such as infection, malignancy,
autoimmune diseases and AIDS, as well as during pregnancy. It was proposed that IDO is
induced chronically by HIV infection, and is further increased by opportunistic infections,
and that the chronic loss of Trp initiates mechanisms responsible for cachexia, dementia and
ea and possibly immunosuppression of AIDS patients (Brown, et al., 1991, Adv. Exp.
Med. Biol., 294: 425—35). To this end, it has recently been shown that IDO inhibition can
enhance the levels of virus—specific T cells and, concomitantly, reduce the number of virally
infected hages in a mouse model of HIV (Portula et al., 2005, Blood, 106:23 82—90).
IDO is ed to play a role in the immunosuppressive processes that prevent fetal
rejection in utero. More than 40 years ago, it was observed that, during pregnancy, the
genetically disparate mammalian conceptus survives in spite of what would be predicted by
tissue transplantation immunology (Medawar, 1953, Symp. Soc. Exp. Biol. 7: 320—38).
Anatomic separation of mother and fetus and antigenic immaturity of the fetus cannot fully
explain fetal allograft survival. Recent ion has focused on immunologic tolerance of the
mother. e IDO is expressed by human syncytiotrophoblast cells and systemic
tryptophan concentration falls during normal pregnancy, it was hypothesized that IDO
expression at the maternal-fetal interface is necessary to prevent immunologic rejection of the
fetal allografts. To test this hypothesis, pregnant mice (carrying syngeneic or allogeneic
fetuses) were d to 1MT, and a rapid, T cell—induced rejection of all allogeneic concepti
was observed. Thus, by catabolizing phan, the mammalian conceptus appears to
suppress T—cell activity and defends itself against rejection, and ng tryptophan
catabolism during murine ncy allows maternal T cells to provoke fetal allograft
rejection (Munn, et al., 1998, Science 281: 1191—3).
r evidence for a tumoral immune resistance mechanism based on phan
ation by IDO comes from the observation that most human tumors constitutively
express IDO, and that expression of IDO by immunogenic mouse tumor cells prevents their
rejection by preimmunized mice. This effect is accompanied by a lack of accumulation of
specific T cells at the tumor site and can be partly reverted by systemic ent of mice
with an inhibitor of IDO, in the absence of noticeable toxicity. Thus, it was suggested that the
efficacy of therapeutic vaccination of cancer patients might be improved by concomitant
stration of an IDO inhibitor (Uyttenhove et al., 2003, Nature Med., 9: 1269—74). It has
also been shown that the IDO tor, l-MT, can synergize with chemotherapeutic agents to
reduce tumor growth in mice, suggesting that IDO inhibition may also enhance the anti-tumor
activity of conventional cytotoxic therapies r et al., 2005, Nature Med., 11:312—9).
One mechanism contributing to immunologic unresponsiveness toward tumors may
be presentation of tumor antigens by tolerogenic host APCs. A subset of human
IDO-expressing antigen-presenting cells (APCs) that coexpressed CD123 (IL3RA) and
CCR6 and inhibited T-cell proliferation have also been described. Both mature and immature
positive dendritic cells suppressed T—cell activity, and this IDO suppressive activity
was blocked by 1MT (Munn, et al., 2002, Science 297: 1867—70). It has also been
demonstrated that mouse draining lymph nodes (TDLNs) n a subset of
plasmacytoid dendritic cells (pDCs) that constitutively express immunosuppressive levels of
IDO. Despite comprising only 0.5% of lymph node cells, in vitro, these pDCs potently
suppressed T cell responses to antigens presented by the pDCs themselves and also, in a
dominant fashion, suppressed T cell responses to third—party antigens ted by
nonsuppressive APCs. Within the population of pDCs, the ty of the functional
IDO—mediated suppressor activity segregated with a novel subset of pDCs essing the
B-lineage marker CD19. Thus, it was hypothesized that diated suppression by pDCs
in TDLNs creates a local microenvironment that is potently suppressive of host antitumor T
cell responses (Munn, et al., 2004, J. Clin. Invest., 114(2): 280—90).
IDO degrades the indole moiety of tryptophan, serotonin and melatonin, and initiates
the production of neuroactive and immunoregulatory metabolites, collectively known as
kynurenines. By locally depleting tryptophan and increasing proapoptotic kynurenines, IDO
sed by dendritic cells (DCs) can greatly affect T—cell proliferation and survival. IDO
induction in DCs could be a common ism of deletional nce driven by regulatory
T cells. Because such tolerogenic responses can be expected to operate in a variety of
physiopathological conditions, phan metabolism and kynurenine production might
represent a crucial interface between the immune and nervous systems (Grohmann, et al.,
2003, Trends Immunol., 24: 242-8).
Small molecule inhibitors of IDO are being developed to treat or prevent IDO-related
es such as those described above. For example, PCT Publication WO 99/29310 reports
s for altering T cell-mediated immunity comprising ng local ellular
concentrations of tryptophan and tryptophan metabolites, using an inhibitor of IDO such as
1-methyl-DL-tryptophan, p-(3 -benzofuranyl)—DL-alanine, p-[3-benzo(b)thienyl]-DL-alanine,
and 6—nitro—L—tryptophan) (Munn, 1999). Reported in WO 03/087347, also published as
European Patent 1501918, are methods of making antigen-presenting cells for enhancing or
reducing T cell tolerance (Munn, 2003). Compounds having indoleamine—2,3-dioxygenase
(IDO) inhibitory activity are further ed in WO 2004/094409; and US. Patent
Application Publication No. 2004/0234623 is directed to methods of ng a subject with a
cancer or an infection by the administration of an inhibitor of indoleamine-2,3-dioxygenase in
ation with other therapeutic modalities.
In light of the experimental data indicating a role for IDO in suppression, tumor
ance and/or rejection, chronic infections, HIV-infection, AIDS (including its
manifestations such as cachexia, dementia and diarrhea), autoimmune es or disorders
(such as rheumatoid arthritis), and immunologic tolerance and prevention of fetal rejection in
utero, therapeutic agents aimed at suppression of tryptophan degradation by inhibiting IDO
activity are desirable. Inhibitors of IDO can be used to activate T cells and therefore enhance T
cell activation when the T cells are ssed by pregnancy, malignancy or a virus such as
HIV. Inhibition of IDO may also be an important treatment strategy for patients with
neurological or neuropsychiatric diseases or disorders such as depression. The compounds,
compositions and methods herein help meet the current need for IDO modulators.
SUMMARY OF THE ION
[0011a] According to a first aspect of the present invention, there is provided a compound of
the formula,
(R1)n
or a pharmaceutically acceptable salt thereof, wherein
bond α is a single or double bond;
n is 0, 1, 2, 3, or 4;
each R1 is independently n, cyano, nitro, C1-6alkyl, C1-6haloalkyl, -OR, -N(R)2, -SR,
-C(O)OR, (R)2, -C(O)R, -S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R, -S(O)2OR,
-S(O)2N(R)2, -OC(O)R, -OC(O)OR, -OC(O)N(R)2, -N(R)C(O)R, -N(R)C(O)OR, or
-N(R)C(O)N(R)2;
R2 is –C1-4alkyl-RA or –C2-4alkenyl-R3 when bond α is a single bond; and
R2 is =C(H)RA when bond α is a double bond;
wherein
RA is –CN, –C(O)R3, –C(O)OR3, -C(O)N(R3)(RC), )(R3)(RC),
-C(NHRB)(R3)(RC), or –C(=N-ORC)R3, wherein
RB is hydrogen, C1-6alkyl, C1-6haloalkyl, -C1-6alkyl-RB1, -C(O)R3, (H)R3,
or -S(O)2R3, -C(O)(CH2)1-4COOR, -C(O)(CH2)1-4(NR)COOR, –
C(O)CH(NH2)(RD), -S(O)2OR3, -S(O)2N(R3)2, -CH2-OP(O)2(OR)2, or –
P(O)(OR3)2, wherein
RB1 is cyano, nitro, kyl, C1-6haloalkyl, -OR, -N(R)2, -SR, -C(O)OR,
(R)2, -C(O)R, -S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R,
-S(O)2OR, -S(O)2N(R)2, -OC(O)R, -OC(O)OR, N(R)2,
-N(R)C(O)R, -N(R)C(O)OR, or -N(R)C(O)N(R)2;
RD is hydrogen, methyl, -CH(CH3)2, -CH2CH(CH3)2,
3)(CH2CH3), benzyl, oxybenzyl, -CH2(3-indolyl),
-CH2SH, -CH2CH2SCH3, -CH2OH, -CH(CH3)OH, -(CH2)4-NH2,
-(CH2)3-N(H)C(=NH)NH2, -CH2(4-imidazolyl), -CH2COOH,
-CH2CH2COOH, -CH2CONH2, -CH2CH2CONH2;
each R3 is independently hydrogen, C1-6alkyl, loalkyl, aryl, heteroaryl,
C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 membered heterocyclyl, arylC1-6alkyl-,
heteroarylC1-6 alkyl-, C3-8cycloalkylC1-6alkyl-, C3-8cycloalkenylC1-6alkyl-, (3-10
membered heterocyclyl)C1-6alkyl-, or (heteroaryl)-(3-10 ed heterocyclyl)-,
wherein
the alkyl, cloalkyl, C3-8cycloalkenyl, 3-10 membered heterocyclyl,
C3-8cycloalkylC1-6alkyl-, C3-8cycloalkenylC1-6alkyl-, (3-10 membered
heterocyclyl)C1-6alkyl-, and (heteroaryl)-(3-10 membered
heterocyclyl)-, are each optionally and independently substituted by
one =R32 group and each optionally substituted and independently by
one, two, three, or four R31 groups;
the aryl, heteroaryl, arylC1-6alkyl-, and heteroarylC1-6alkyl- groups, are
each optionally substituted by one, two, three, or four R31 groups;
wherein each R31 is independently halogen, cyano, nitro, C1-6alkyl,
-C1-6alkyl-R33, C1-6haloalkyl, -OR, , -SR, -C(O)OR,
-C(O)N(R)2, -C(O)N(OH)R, -C(O)R, -C(NR11)R, -C(NR11)N(R11)R,
-S(O)R, R, -S(O)N(R)2, -S(O)2R, -S(O)2OR, -S(O)2N(R)2,
-OC(O)R, -OC(O)OR, -OC(O)N(R)2, -N(R)C(O)R, -N(R)C(O)OR,
-N(R)C(O)N(R)2, wherein
R33 is cyano, -OR, -N(R)2, -SR, R, -C(O)N(R)2, -C(O)R,
-S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R, OR, -S(O)2N(R)2,
-OC(O)R, -OC(O)OR, -OC(O)N(R)2, -N(R)C(O)R, -N(R)C(O)OR, or
(O)N(R)2;
R32 is =O, =S, =N(R), =N(OR), )2, =(spiro-C3-8cycloalkyl), or
=(spiro-(3-10 membered heterocyclyl)), wherein
each R34 is independently hydrogen, halogen, cyano, C1-6alkyl, -
C1-6alkyl-OR, loalkyl, C3-8cycloalkyl, or 3-10 membered
heterocyclyl;
or both R34 taken together with the atom to which they are both
attached form a monocyclic C3-8cycloalkyl or monocyclic 3-8
membered heterocyclyl;
RC is hydrogen or C1-6alkyl;
each R is independently en or R10, wherein
R10 is C1-6alkyl, C1-6haloalkyl, aryl, heteroaryl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10
membered heterocyclyl, arylC1-6alkyl, heteroarylC1-6alkyl-, C3-8 cycloalkylC1-6alkyl-,
C3-8cycloalkenylC1-6alkyl-, or (3-10 membered cyclyl)C1-6alkyl-, each R10 optionally
substituted by one, two, three, or four groups that are each ndently halogen, cyano, nitro,
C1-6alkyl, C1-6haloalkyl, -OR11, -N(R11)2, -SR11, -C(O)OR11, -C(O)N(R11)2, -C(O)R11, -S(O)R11,
-S(O)OR11, -S(O)N(R11)2, -S(O)2R11, -S(O)2OR11, -S(O)2N(R11)2, -OC(O)R11, -OC(O)OR11,
-OC(O)N(R11)2, -N(R11)C(O)R11, )C(O)OR11, -N(R11)C(O)N(R11)2, -N(R11)S(O)2R11, or –
C(O)-(3-10 ed heterocyclyl), wherein each R11 is independently hydrogen or C1-6alkyl.
] According to a second aspect of the present invention, there is ed a
pharmaceutical composition comprising a compound according to the first aspect above and a
pharmaceutically acceptable diluent, excipient, or carrier.
[0011c] According to a third aspect of the present invention, there is provided a kit
comprising a compound according to the first aspect above.
In another aspect, the invention comprises compounds according to the formula (I),
(R1)n
AH26(9969527_1):JJC
wherein R1, R2, n and α are each defined herein.
In another aspect, the invention comprises compounds according to the formula (II),
(R1)n
(II)
n R1, R3, RC, and n are each defined herein.
In another aspect pharmaceutical compositions are provided sing a
pharmaceutically acceptable excipient, diluent, or carrier, and a compound according to formula
(I) or (II).
AH26(9969527_1):JJC
WO 42237
In another aspect methods are provided for (a) modulating an activity of indoleamine
oxygenase comprising contacting an indoleamine 2,3-dioxygenase with a modulation
ive amount of a compound ing to formula (I) or (II), or a pharmaceutical
composition comprising a compound according to formula (I) or (II); (b) treating indoleamine
2,3—dioxygenase (IDO) mediated immunosuppression in a subject in need thereof, comprising
administering an ive indoleamine 2,3-dioxygenase inhibiting amount of a compound
according to a (I) or (II), or a pharmaceutical composition comprising a compound
ing to formula (I) or (II); (c) treating a medical condition that benefits from the
inhibition of enzymatic activity of indoleamine-2,3-dioxygenase comprising administering an
effective indoleamine 2,3-dioxygenase inhibiting amount of a compound according to
formula (I) or (II), or a pharmaceutical composition comprising a compound according to
formula (I) or (II); (d) enhancing the effectiveness of an anti-cancer treatment comprising
administering an anti-cancer agent and a compound according to formula (I) or (II), or a
pharmaceutical composition comprising a nd according to a (I) or (II); (e)
treating tumor-specific immunosuppression associated with cancer comprising administering
an effective indoleamine 2,3-dioxygenase inhibiting amount of a compound according to
formula (I) or (II), or a pharmaceutical composition comprising a compound ing to
formula (I) or (II); and (f) ng immunosupression associated With an infectious disease,
e.g., HIV-1 infection, comprising administering an effective indoleamine 2,3-dioxygenase
inhibiting amount of a compound ing to formula (I) or (II), or a pharmaceutical
composition comprising a compound according to formula (I) or (II).
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows the absolute configuration of a diasteromer of the HBr salt of
compound 1417 as confirmed by X-ray crystallography.
ED DESCRIPTION OF THE INVENTION
In one aspect, the invention provides compounds of formula (I),
or a pharmaceutically acceptable salt thereof, wherein
bond Cl is a single or double bond;
n is 0,1, 2, 3, or4;
each R1 is independently halogen, cyano, nitro, kyl, C1_6haloalkyl, -OR, -N(R)2, -SR,
-C(O)OR, -C(O)N(R)2, -C(O)R, -S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R, -S(O)ZOR,
—S(O)2N(R)2, R, -OC(O)OR, N(R)2, -N(R)C(O)R, -N(R)C(O)OR, or
-N(R)C(O)N(R)2;
R2 is —C1_4alkyl—RA or —C2_4alkenyl—R3 when bond or is a single bond; and
R2 is =C(H)RA when bond or is a double bond;
wherein
RA is —CN, —C(O)R3, R3, —C(O)N(R3)(RC), —C(ORB)(R3)(RC),
—C(NHRB)(R3)(RC), or —C(=N—ORC)R3, wherein
RB is hydrogen, C1_6alkyl, C1_6haloalkyl, -C1_6alkyl-RB1, —C(O)R3, or —S(O)2R3,
-C(O)(CH2)1_4COOR, —C(O)CH(NH2)(RD), —-S(O)ZOR3, —S(O)2N(R3)2, —CH2—
OP(O)2(OR)2, or OR3)2, wherein
RBl is cyano, nitro, C1_6alkyl, C1_6haloalkyl, —OR, —N(R)2, —SR,
-C(O)OR, -C(O)N(R)2, -C(O)R, -S(O)R, -S(O)OR, -S(O)N(R)2,
-S(O)2R, -S(O)ZOR, -S(O)2N(R)2, -OC(O)R, -OC(O)OR,
-OC(O)N(R)2, -N(R)C(O)R, -N(R)C(O)OR, or -N(R)C(O)N(R)2;
RD is hydrogen, methyl, -CH(CH3)2, -CH2CH(CH3)2,
—CH(CH3)(CH2CH3), benzyl, oxybenzyl, -CH2(3-indolyl),
-CHZSH, -CH2CHZSCH3, -CHZOH, -CH(CH3)OH, —(CH2)4—NH2,
—(CH2)3—N(H)C(=NH)NH2, —CH2(4—imidazolyl), —CH2COOH,
-CH2CH2COOH, -CH2CONH2, 2CONH2;
each R3 is independently hydrogen, C1_6alkyl, loalkyl, aryl, aryl,
C3_gcycloalkyl, C3_gcycloalkenyl, 3-10 membered heterocyclyl, arle1_6alkyl-,
heteroarle1_6 alkyl-, C3_gcycloalkle1_6alkyl-, C3_gcycloalkenle1-6alkyl-, or
(3 - 10 membered heterocyclyl)C1_6alkyl—,
wherein
the alkyl, C3_gcycloalkyl, C3_gcycloalkenyl, 3—10 membered
heterocyclyl, C3_gcycloalkle1_6alkyl-, C3_gcycloalkenle1.6alkyl-,
and (3—10 ed heterocyclyl)C1_6alkyl— are each optionally
and independently substituted by one =R32 group and each
WO 42237
optionally substituted and independently by one, two, three, or four
R31 groups;
the aryl, heteroaryl, arle1_6alkyl-, and heteroarle1_6alkyl- groups, are
each optionally substituted by one, two, three, or four R31 ;
wherein
each R31 is independently halogen, cyano, nitro, C1_6alkyl,
—C1_6alkyl—R33, C1_6haloalkyl, —OR, —N(R)2, —SR, —C(O)OR,
—C(O)N(R)2, —C(O)R,— —S(O)R, —S(O)OR, —S(O)N(R)2, —S(O)2R,
—S(O)ZOR, —S(O)2N(R)2, —OC(O)R, —OC(O)OR, —OC(O)N(R)2,
—N(R)C(O)R, —N(R)C(O)OR, —N(R)C(O)N(R)2, wherein
R33 is cyano, —OR, —N(R)2, —SR, —C(O)OR, -C(O)N(R)2, —C(O)R,
—S(O)R, —S(O)OR, —S(O)N(R)2, -S(O)2R, —S(O)20R,
—S(O)2N(R)2, —OC(O)R, OR, —OC(O)N(R)2,
—N(R)C(O)R, —N(R)C(O)OR, or —N(R)C(O)N(R)2;
R32 is =0, =s, =N(R), =N(OR), =C(R34)2, =(spiro-C3_gcycloalkyl), or
=(spiro—(3—10 membered heterocyclyl)), wherein
each R34 is independently hydrogen, halogen, C1_6alkyl,
loalkyl, C3_gcycloalkyl, or 3—10 membered heterocyclyl,
or both R34 taken together with the atom to which they are both
attached form a monocyclic C3_gcycloalkyl or monocyclic 3—8
ed heterocyclyl,
RC is hydrogen or C1_6alkyl;
each R is independently hydrogen or R10, wherein
R10 is C1_6alkyl, C1_6haloalkyl, aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, 3—10
membered heterocyclyl, arle1_6alkyl, heteroarle1_6alkyl—, C3_g lkle1_6alkyl-,
C3_gcycloalkenle1-6alkyl-, or (3-10 membered heterocyclyl)C1_6alkyl-, each R10
ally substituted by one, two, three, or four groups that are each independently
halogen, cyano, nitro, C1_6alkyl, C1_6haloalkyl, —0R“, —N(R11)2, —SR“, R“,
—C(O)N(R”)2, -C(O)R”, —S(O)R”, —S(O)OR”, (R“)2, —S(O)2R“, -S(O)ZOR“,
—S(O)2N(R11)2, —OC(O)R“, —OC(O)OR“, —OC(O)N(R“)2, —N(R“)C(0)R“,
—N(R”)C(O)OR”, —N(R11)C(O)N(R“)2, wherein each R“ is ndently hydrogen
or C1_6alkyl.
In one embodiment, the compounds of formula (I) further include those compounds
where,
RB is additionally —C(O)N(H)R3 or —C(O)(CH2)1_4(NR)COOR;
R3 is additionally (heteroaryl)-(3-10 membered heterocyclyl)—,
R31 is additionally —C(O)N(OH)R, —C(N=R11)R, or —C(N=R“)N(R“)R;
R34 is additionally cyano or - C1_6alkyl-OR; and/or
R10 is additionally optionally substituted by —N(R11)S(O)2R“ or —C(O)—(3-10
membered heterocyclyl);
such compounds are referred to as compounds of formula (1’).
The invention further comprises era of formula (I) and formula (1’) in which
the substituents are selected as any and all combinations of one or more of structural formula
(I), n, R1, R2, R3, RA, RB, and RC, as defined , ing without limitation, the
following:
Structural Formula I is one of formulae Ia — Ih :
(R1)n (R1)n
iv iv
/ R2 / R2
/N/)N /N/)N
(13) (1b)
(R|1\)n\ R1
/ R2 R2
/ N /
N) N)/
(M) (16)
R1 R1
MR2 R2
/N/)N /N/)N
(1g) (1h)
n and R1 are selected from one of the in rou s 1a — lu :
(la) n is l, 2, 3, or 4, and each R1 is as d for formula (I).
(110) n is 0, 1, 2, or 3, and each R1 is as defined for formula (I).
(1C) n is 0, 1, or 2 and each R1 is as defined for formula (I).
(1d) n is 0, 1, or 2 and each R1 is independently halogen, -OR, -N(R)2, or —SR.
(16) n is 0, 1, or 2 and each R1 is independently halogen, -OR0, -N(R0)2, or -SR0, wherein
each R0 is independently hydrogen or C1_6alkyl.
(11) n is 0, 1, or 2 and each R1 is independently fluoro, , hydroxy, or methoxy.
(1g) n is 0, 1, or 2 and each R1 is independently halogen.
(1h) n is 0, 1, or 2 and each R1 is independently fluoro or chloro.
(1i) n is 0 or 1 and R1 is as defined for formula (I).
(lj) n is 0 or 1 and R1 is halogen, -OR, -N(R)2, or —SR.
(1k) n is 0 or 1 and R1 is n, -OR0, -N(R0)2, or -SR0;wherein each R0 is independently
hydrogen or C1_6alkyl.
(11) n is 0 or 1 and R1 is fluoro, chloro, hydroxy, or methoxy.
(1111) n is 0 or 1 and R1 is halogen.
(111) n is 0 or 1 and R1 is fluoro or chloro.
(10) n is 1 and R1 is as defined for formula (I).
UP) n is 1 and R1 is halogen, -OR, , or —SR;
(lq) n is 1 and R1 is halogen, -OR0, -N(R0)2, or -SR0;wherein each R0 is independently
hydrogen or C1_6alkyl.
(1r) n is 1 and R1 is fluoro, chloro, hydroxy, or y.
(IS) n is 1 and R1 is n.
(It) n is 1 and R1 is fluoro or chloro.
(111) nis 0.
R2 is selected from one of the following groups 12a) — 1211:
(23) R2 is —C1_4alky1—RA.
(210) R2 is —C1_2alky1—RA.
(2C) R2 is -C(H)=C(H)R3.
(2d) R2 is -C(H)=C(H)R30, wherein R30 is phenyl optionally substituted by one, two, three,
or four R31 groups.
(26) R2 is -C(H)=C(H)R30, wherein R30 is phenyl optionally substituted by one or two R31
groups.
(21) R2 is —CH2—RA, —CH2CH2—RA, -C(H)(CH3)CH2-RA, or —C(H)=C(H)R3.
(2g) R2 is —CH2—RA, —CH2CH2—RA, or CH3)CH2—RA.
(2h) R2 is —CH2—RA, —CH2CH2—RA, or —C(H)=C(H)R3.
(2i) R2 is —CH2—RA.
(Zj) R2 is 2—RA.
(2k) R2 is —C(H)(CH3)CH2—RA.
(21) R2 is A, —CH2CH2—RA, or —C(H)=C(H)R3.
RA is selected from one of the following groups (321) — g3n):
(321) RA is —CN, —C(O)OR3, or —C(O)N(R3)(RC).
(3b) RA is 3 or —C(0RB)(R3)(RC).
(3c) RA is —C(NHRB)(R3)(RC), or ORC)R3.
(3d) RA is B)(R3)(RC), wherein RB is hydrogen, C1_6alkyl, or 1_6alkyl.
(3e) RA is —C(NH2)(R3)(RC).
(31) RA is —C(0)0R3.
(3g) RA is —C(0)N(R3)(RC).
(3h) RA is —C(0)R3.
(3i) RA is —C(0RB)(R3)(RC).
(3j) RA is —C(0H)(R3)(RC).
(3k) RA is —CH(0H)(R3).
(31) RA is —CN, —C(0)R3, —C(0)0R3, —C(O)N(R3)(RC), —C(0RB)(R3)(RC),
—C(NHRB)(R3)(RC), or —C(=N—0RC)R3.
(3m) RA is —C(O)R3 or —C(ORB)(R3)(RC), wherein RB is hydrogen and RC is hydrogen or
C1_6alkyl.
(3n) RA is -C(ORB)(R3)(RC), wherein RB is hydrogen and RC is hydrogen or C1_6alkyl.
RB is selected from one of the following groups (421) — 14k):
(421) RB is hydrogen, C1_6alkyl, C1_6haloalkyl, —C1_6alkyl—RBl, —C(O)(CH2)1_4COORBZ,
-C(O)C(NH2)RD, —P(O3)(RBZ)2, —CH2—OP(O)2(OR)2, wherein RD is the side chain of
l alpha amino acids
, -C(O)R3, or -S(O)2R3, wherein RBl is cyano, nitro,
C1_6alkyl, C1_6haloalkyl, —ORBZ, —N(RBZ)2, —SRBZ, —C(O)ORBZ, —C(O)N(RBZ)2,
—C(O)RBZ, —S(O)RBZ, —S(O)ORBZ, -S(O)N(RBZ)2, -S(O)2RBZ, —S(O)ZORBZ,
—S(O)2N(RBZ)2, —OC(O)RBZ, —OC(O)ORBZ, -OC(O)N(RBZ)2, —N(RBZ)C(O)RBZ,
—N(RBZ)C(O)ORBZ, or —N(RBZ)C(O)N(RBZ)2, n each R132 is independently
hydrogen or C1_6alkyl.
(4b) RB is hydrogen, C1_6alkyl, C1_6haloalkyl, -C1_6alkyl-RBl, —C(O)R3, or —S(O)2R3,
wherein RBl is cyano, nitro, C1_6alkyl, C1_6haloalkyl, -ORBZ, -N(RBZ)2, -SRBZ,
—C(O)ORBZ, —C(O)N(RBZ)2, -C(O)RBZ, -S(O)RBZ, -S(O)ORBZ, —S(O)N(RBZ)2,
—S(O)2RBZ, —S(O)ZORBZ, —S(O)2N(RBZ)2, —OC(O)RBZ, —OC(O)ORBZ, —OC(O)N(RBZ)2,
—N(RBZ)C(O)RBZ, —N(RBZ)C(O)ORBZ, or )C(0)N(RBZ)2, wherein each R132 is
independently hydrogen or C1_6alkyl.
(4C) RB is en, C1_6alkyl, C1_6haloalkyl, or -C1_6alkyl-RBl, wherein RBl is cyano,
nitro, C1_6alkyl, C1_6haloalkyl, —ORBZ, —N(RBZ)2, —SRBZ, —C(O)ORBZ, (RBZ)2,
-C(O)RBZ, -S(O)RBZ, —S(O)ORBZ, —S(O)N(RBZ)2, —S(O)2RBZ, —S(O)ZORBZ,
—S(O)2N(RBZ)2, -OC(O)RBZ, -OC(O)ORBZ, —OC(O)N(RBZ)2, —N(RBZ)C(O)RBZ,
—N(RBZ)C(O)ORBZ, or —N(RBZ)C(O)N(RBZ)2, wherein each R132 is independently
hydrogen or C1_6alkyl.
(4d) RB is en, C1_6alkyl, C1_6haloalkyl, or -C1_6alkyl-RBl, wherein RBl is cyano,
—C(O)ORBZ, —C(O)N(RBZ)2, -C(O)RBZ, -S(O)2RBZ, —S(O)ZORBZ, or —S(O)2N(RBZ)2,
n each R132 is independently hydrogen or C1_6alkyl.
(46) RB is -C1_6alkyl-RBl, wherein R31 is cyano, RBZ, —C(O)N(RBZ)2, BZ,
—S(O)2RBZ, —S(O)ZORBZ, or —S(O)2N(RBZ)2, n each R132 is ndently
hydrogen or kyl.
(41) RB is hydrogen, C1_6alkyl, C1_6haloalkyl, -C1_6alkyl-RBl, —C(O)RBZ, or -S(O)2RBZ,
wherein RBl is —C(O)ORB3, —C(O)N(RB3)2, —S(O)ZORB3, or —S(O)2N(R 3», R132 is c1.6
alkyl; and RB3 is hydrogen or C1_6 alkyl.
(4g) RB is hydrogen, C1_6alkyl, or loalkyl.
(4h) RB is hydrogen or C1_6alkyl;
(4i) RB is hydrogen.
(41) RB is C1_6alkyl.
(4k) RB is hydrogen, -C(O)RBZ, —C(O)(CH2)1_4COORBZ, —C(O)C(NH2)RD, —P(O)(ORBZ)2,
—CH2—OP(O)2(OR)2, —S(O)2RBZ, —C(O)N(RBZ)2, —S(O)ZORBZ, —S(O)2N(R 3», wherein
and R132 is hydrogen or C1_6 alkyl.
RC is selected from one of the following groups 153) — 15g):
(53) RC is hydrogen or C1_4alkyl.
(5b) RC is hydrogen or C1_2alkyl.
(5e) RC is en or methyl.
(5d) RC is hydrogen.
(5e) RCisChfiflkyl
(5f) 4dkyl
(5g) RC is .
R3 is selected from one of the following groups 163) — 1622:
(6a) R3 is hydrogen, C1_6alkyl, aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, 3-10
membered heterocyclyl, or C3_gcycloalkle1_6alkyl—, wherein the C1_6alkyl,
cloalkyl, C3_gcycloalkenyl, 3—10 membered heterocyclyl, and
C3_gcycloalkle1_6alkyl—, are each optionally substituted by one =R32 group and one or
two R31 groups; and the aryl and heteroaryl groups, are each optionally substituted by
one or two R31 groups.
(6b) R3 is aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, 3—10 membered heterocyclyl,
or C3_gcycloalkle1_6alkyl-, wherein the C3_gcycloalkyl, C3_gcycloalkenyl, 3-10
membered heterocyclyl, and C3_gcycloalkle1_6 alkyl—, are each ally and
ndently tuted by one =R32 group and each optionally and independently
substituted by one or two R31 groups; and the aryl and heteroaryl groups, are each
optionally substituted by one or two R31 groups.
(6C) R3 is phenyl, a five or six membered aryl, monocyclic C5_gcycloalkyl,
monocyclic C5_gcycloalkenyl, a five or six membered monocyclic heterocyclyl, or
(monocyclic C5_gcycloalkyl)C1_6 alkyl-, wherein the C5_gcycloalkyl, C5_gcycloalkenyl,
— 6 membered heterocyclyl, and C5_8cycloalkle1_6 alkyl—, are each optionally and
independently substituted by one =R32 group and each optionally and independently
substituted by one or two R31 groups; and the phenyl and heteroaryl groups, are each
optionally substituted by one or two R31 groups.
(6d) R3 is phenyl or a five or six membered heteroaryl, each optionally substituted by one
or two R31 groups.
(66) R3 is monocyclic C5_gcycloalkyl, monocyclic C5_gcycloalkenyl, a five or six membered
monocyclic heterocyclyl, or (monocyclic C5_8cycloalkyl)C1_6alkyl—, each ally
substituted by one =R32 group and one or two R31 groups.
\5\J?a!
(R31)m
(61) R3 is p wherein bond a is a single bond or a double bond; m is 0,
, l, or 2;
p is 0 or 1; and wherein
when bond a is a single bond, then Z is —C(R36)2-, —C(=R32)-, —N(R35)—, or —O—,
wherein each R36 is independently hydrogen or R31; and
R35 is en, C1_6alkyl, —C(O)R, —S(O)2R, —C(O)OR, —C(O)N(R)2, —S(O)20R, or
-S(O)2N(R)2;
and when bond a is a double bond, then Z is —C(R36)= or —N=.
( R31 ) /M’Zm
(6g) R3 is P wherein bond a is a single bond or a double bond; m is 0,
, l, or 2;
p is 0 or 1; and wherein
when bond a is a single bond, then Z is —C(R36)2-, —C(=R32)—, —N(R35)—, or —O—,
wherein each R36 is independently hydrogen or R31; and
R35 is hydrogen, C1_6alkyl, —C(O)R, —S(O)2R, R, —C(O)N(R)2, —S(O)20R, or
-S(O)2N(R)2;
and when bond a is a double bond, then Z is —C(R36)= or —N=.
(6h) As group (6g), wherein when bond a is a single bond, then Z is —C(R36)2— or 2)—
; and when bond a is a double bond, then Z is —C(R36)= or —N=.
(6i) As group (6g), wherein m is 0; when bond a is a single bond, then Z is —C(R36)2- or
—C(=R32)—; and when bond a is a double bond, then Z is —C(R36)= or —N=.
(61) As group (6g), wherein bond a is a single bond; and Z is —C(R36)2- or —C(=R32)-.
(6k) As group (6g), n bond a is a single bond; and Z is —C(R36)2—.
(61) As group (6g), wherein bond a is a single bond; and Z is —C(=R32)-.
(6111) As group (6g), wherein m is 0; bond a is a single bond; and Z is —C(R36)2- or —
C(=R32)-.
(611) As group (6g), wherein m is 0; bond a is a single bond; and Z is —C(R36)2-.
(60) As group (6g), wherein m is 0; bond a is a single bond; and Z is —C(=R32)—.
(6p) As group (6g), wherein bond a is a single bond; and Z is —C(R36)2- or 2)-,
wherein each R36 is independently en, halogen, kyl, -C1_6alkyl-OH,
C1_6haloalkyl, or -OH, wherein
WO 42237
R32 is =0, =C(R34)2, =(spiro—C3_gcycloalkyl), or =(spiro—(3—8 membered
heterocyclyl)), wherein each R34 is independently hydrogen, halogen, kyl,
C1_6haloalkyl, C3_gcycloalkyl, or 3—8 membered heterocyclyl.
(6(1) As group (6g), wherein m is 0; bond a is a single bond; and Z is —C(R36)2- or —
C(=R32)—, wherein each R36 is independently hydrogen, n, kyl,
—C1_6alkyl-OH, C1_6haloalkyl, or -OH, wherein
R32 is =0, =C(R34)2, =(spiro—C3_gcycloalkyl), or o—(3—8 membered
heterocyclyl)), wherein each R34 is independently hydrogen, halogen, C1_6alkyl,
C1_6haloalkyl, C3_gcycloalkyl, or 3—8 membered heterocyclyl.
(6F) As group (6g), wherein bond a is a single bond; and Z is —N(R35)— or —O—.
(68) R3 is hydrogen, C1_6alkyl, aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, 3-10
membered cyclyl, or C3_gcycloalkle1_6alkyl, wherein
the C1_6alkyl, C3_gcycloalkyl, C3_gcycloalkenyl, 3—10 membered heterocyclyl,
and C3_gcycloalkle1_6alkyl, are each optionally substituted by one =R32 group and
one or two R31 groups;
the aryl and heteroaryl groups, are each ally substituted by one or two
R31 groups; wherein
each R31 is independently halogen, cyano, nitro, C1_6alkyl, -C1_6alkyl-R33,
loalkyl, —OR, —N(R)2, —SR, —C(O)OR, (R)2, —C(O)R, —S(O)R, —S(O)OR,
—S(O)N(R)2, —S(O)2R, —S(O)ZOR, —S(O)2N(R)2, —OC(O)R, —OC(O)OR, —OC(O)N(R)2,
—N(R)C(O)R, —N(R)C(O)OR, —N(R)C(O)N(R)2, wherein R33 is —OR, , or —SR;
R32 is oxo, =C(R34)2, =(spiro—C3_gcycloalkyl), or =(spiro—(3—10 membered
heterocyclyl)), wherein each R34 is independently hydrogen, halogen, C1_6alkyl, or
C3_gcycloalkyl.
(6t) R3 is hydrogen, C1_6alkyl, aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, 3-10
membered heterocyclyl, or C3_gcycloalkle1_6alkyl—, wherein
the C1_6alkyl, C3_gcycloalkyl, C3_gcycloalkenyl, 3—10 ed heterocyclyl,
and C3_gcycloalkle1_6alkyl-, are each optionally and independently substituted by one
=R32 group and each optionally and independently substituted by one or two R31
groups;
the aryl and heteroaryl , are each optionally substituted by one or two R31
groups;
wherein
each R31 is independently halogen, cyano, nitro, C1_6alkyl, -C1_6alkyl-R33,
C1_6haloalkyl, —OR, —N(R)2, —SR, —C(O)OR, —C(O)N(R)2, —C(O)R, —S(O)R, —S(O)OR,
—S(O)N(R)2, —S(O)2R, —S(O)ZOR, N(R)2, —OC(O)R, —OC(O)OR, —OC(O)N(R)2,
—N(R)C(O)R, —N(R)C(O)OR, —N(R)C(O)N(R)2, wherein R33 is —OR, , or —SR;
R32 is oxo, =C(R34)2, =(spiro—C3_gcycloalkyl), or =(spiro—(3—10 membered
heterocyclyl)), wherein each R34 is independently hydrogen, halogen, C1_6alkyl, or
C3_gcycloalkyl.
(611) R3 is aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, or 3—10 membered
heterocyclyl, wherein the C3_gcycloalkyl, C3_gcycloalkenyl, and 3—10 membered
heterocyclyl are each optionally tuted by one =R32 group and one, two, three, or
four R31 groups; and
the aryl and heteroaryl are each ally substituted by one, two, three, or four R31
groups.
(6V) R3 is phenyl, entyl, cyclohexyl, cyclohexenyl, l, tetrahydropyranyl,
piperidinyl, imidazolyl, thiazolyl, each ally substituted by one, two, three, or
four R31 , and wherein the cyclopentyl, cyclohexyl, cyclohexenyl, andy
piperidinyl groups are each optionally substituted by one =R32 group.
(6W) R3 is phenyl, cyclopentyl, cyclohexyl, cyclohex-l-en-l-yl, exen-l-yl, furan-
2—yl, furanyl, tetrahydropyranyl, tetrahydropyranyl, piperidin-3 -yl, piperidin-
4—yl, imidazol—2—yl, imidazol—4—yl, thiazol—2—yl, thiazol—4—yl, thiazol—5—yl, each
optionally substituted by one or two R31 groups, and wherein the cyclopentyl,
cyclohexyl, cyclohexenyl, andy piperidinyl groups are each optionally substituted by
one =R32 group.
(6X) Any one of groups (6a) — (6w), wherein each R is independently hydrogen, C1_6alkyl,
C1_6haloalkyl, aryl, heteroaryl, C3_gcycloalkyl, cloalkenyl, 3—10 membered
heterocyclyl, arle1_6alkyl, heteroarle1_6alkyl-, C3_g cycloalkle1_6alkyl-,
C3_gcycloalkenle1-6alkyl-, or (3-10 membered heterocyclyl)C1_6alkyl—.
(6y) Any one of groups (6a) — (6w), wherein each R is independently hydrogen, C1_6alkyl,
loalkyl, phenyl, 5- or 6-membered heteroaryl, cloalkyl, C3_gcycloalkenyl,
3—8 membered heterocyclyl, benzyl, (5— or 6—membered heteroaryl)C1_6alkyl—, C3_g
cycloalkle1_6alkyl-, cloalkenle1-6alkyl—, or (3—8 membered
heterocyclyl)C1_6alkyl—.
(62) Any one of groups (6a) — (6w), wherein each R is independently hydrogen or
C1_6alkyl.
Particular embodiments of this aspect of the invention e compounds of any one
of the formulae (1), (1’), and (la) — (Id), each as d in each of the ing rows,
wherein each entry is a group number as defined above (e.g., (ls) refers to n is l and each R1
is halogen), and a dash "— H indicates that the variable is as defined for formula (I) or (1’) or
defined according to any one of the applicable variable definitions (la)-(6z) [e.g., when RC is
a dash, it can be either as defined for Formula (I) or (1’) or any one of definitions (5a)-(5g)]:
WO 42237
O\ ,_.1
00 WW
(1)-98 6f
(1)-99 6y
(1)-100 6y
(1)—101 6y
(1)402 6y
3 6y
(1)-108 60
(1)-109 6c
(1)—110 O\O
(1)—111 O\O
(1)—112 O\O
(1)—113 00 WW
(1)419 O\
(1)420 O\
(1)—121 O\
(1)—122 O\
(1)—123 O\
(1)425
(1)426
(1)427
(1)428
(1)429 (1)-160 6f
(1)430 (1)461 6f
(1)431 (1)462 6y
(1)432 3 6y
(1)-133 (1)-164 6y
(1)434 (1)-165 6y
(1)435
(1)436
(1)437
(1)438
(1)439 (1)-170 6c
(1)440 (1)471 6c
(1)441 (1)472 O\O
(1)442 (1)-173 O\O
(1)443 (1)-174 O\O
(1)444 (1)-175 O\o
(1)445 9.5
(1)446 O\
(1)447 O\
(1)448 O\
(1)449 O\
(1)450 (1)481 O\
(1)451 (1)482 O\
(1)452 (1)-183 O\
(1)-153 (1)484 O\
(1)454 (1)-185 O\
(1)487
(1)488
(1)489
(1)490
(1)491 (1)422
(1)492 (1)—223
(1)-193 (1)—224
(1)494 (1)—225
(1)-195 (1)-226
(1)-196 7
(1)497
(1)498
(1)499
(1)—200
(1)—201 2
(1)—202 (1)-233
(1)-203 (1)—234
(1)-204 (1)-235
(1)-205 (1)-236
(1)-206 (1)-237
(1)-208
(1)—209
(1)—210
(1)—211
(1)—212 (1)—243
(1)—213 (1)—244
(1)—214 (1)—245
(1)—215 (1)-246
(1)-216 (1)-247
(1)—217
(1)—249
(1)—250
(1)—251 —
(1)—252
(1)—253
(1)—254
(1)-255
(1)-256
(1)-257
(1)-258
(1)-263 2j DJ {3‘
(1)-264 2j b.) H.
(1)-265 2j U.)W
(1)-266 2b DJ {3‘
7 2b b.) H.
(1)-268 2b U.)
H U.)
(1)—274 —
In another aspect, the invention provides the compound according to formula (II),
(R1)n
/ N
N) RC
or a pharmaceutically acceptable salt thereof, wherein
n is 0 or 1;
each R1 is ndently n, -OR, -N(R)2, or -SR;
each R3 is independently hydrogen, C1_6alkyl, aryl, heteroaryl, C3_gcycloalkyl,
cloalkenyl, 3—10 membered heterocyclyl, or C3_gcycloalkle1_6alkyl—, wherein
the C1_6alkyl, cloalkyl, C3_gcycloalkenyl, 3—10 membered heterocyclyl,
and C3_gcycloalkle1_6alkyl-, are each optionally and independently substituted
by one =R32 group and each optionally and independently tuted by one
or two R31 groups;
the aryl and heteroaryl groups, are each optionally substituted by one or two
R31 groups; wherein
each R31 is independently halogen, cyano, nitro, kyl,
lkyl—R33, C1_6haloalkyl, —OR, —N(R)2, —SR, R,
—C(O)N(R)2, —C(O)R, —S(O)R, —S(O)OR, —S(O)N(R)2, —S(O)2R,
—S(O)ZOR, —S(O)2N(R)2, —OC(O)R, —OC(O)OR, —OC(O)N(R)2,
—N(R)C(O)R, —N(R)C(O)OR, —N(R)C(O)N(R)2, wherein R33 is —OR,
—N(R)2, or -SR;
R32 is oxo, =C(R34)2, =(spiro—C3_gcycloalkyl), or =(spiro—(3—10
membered heterocyclyl)), wherein each R34 is independently
hydrogen, halogen, C1_6alkyl, or C3_gcycloalkyl; and
RC is hydrogen or C1_6alkyl; and
each R is independently hydrogen or R10, wherein
R10 is C1_6alkyl, C1_6haloalkyl, aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, 3-10
membered heterocyclyl, arle1_6alkyl, heteroarle1_6alkyl—, C3_g cycloalkle1_6alkyl-,
C3_gcycloalkenle1-6alkyl-, or (3-10 membered heterocyclyl)C1_6alkyl-, each R10
optionally substituted by one, two, three, or four groups that are each independently
halogen, cyano, nitro, C1_6alkyl, C1_6haloalkyl, —0R“, —N(R11)2, —SR“, -C(O)OR“,
—C(O)N(R“)2, -C(O)R”, —S(O)R“, —S(O)OR“, —S(O)N(R“)2, R“, —S(O)ZOR“,
—S(O)2N(R11)2, —OC(O)R“, —OC(O)OR“, N(R“)2, —N(R“)C(O)R“,
—N(R”)C(O)OR”, —N(R11)C(O)N(R“)2, wherein each R“ is independently hydrogen
or C1_6alkyl.
In one embodiment, the compounds of formula (11) further include those nds
where,
R3 is additionally (heteroaryl)—(3—10 membered heterocyclyl)—;
R31 is additionally —C(O)N(OH)R, —C(N=R11)R, or —C(N=R11)N(R11)R;
R34 is additionally cyano or - C1_6alkyl-OR; and/or
R10 is onally optionally tuted by —N(R“)S(O)2R“ or —C(O)-(3-10
membered heterocyclyl);
such compounds are referred to as compounds of a (11’).
The invention further comprises subgenera of formula (11) or (11’) in which the
substituents are selected as any and all combinations of one or more of ural formula (11),
n, R1, R3, and RC as defined herein, including without limitation, the following:
Structural Formula II is one of ae [Ila] — [11d]:
(Ha): wherein the stereoisomeric configuration of carbon-l (C-1) and carbon-3 (C—3)
of formula (11) are respectively (R, R).
(IIb): n the stereoisomeric configuration of carbon-l and carbon-3 are of
formula (11) respectively (R, S).
(11c): wherein the stereoisomeric configuration of carbon—l and carbon—3 are of
formula (11) respectively (S, R).
(IId): wherein the stereoisomeric configuration of carbon-l and carbon-3 are of
formula (11) respectively (S, S).
Structural Formula II is one of formulae [He] — [11h]:
(He): wherein the isomeric configuration of carbon—1 (C—1) and carbon—3 (C—3)
of a (II) are respectively (R, R).
(111): wherein the stereoisomeric configuration of carbon—1 and carbon—3 are of
formula (II) tively (R, S).
(fig): wherein the stereoisomeric configuration of carbon-1 and carbon—3 are of
formula (II) respectively (S, R).
(IIh): wherein the stereoisomeric configuration of -l and carbon-3 are of
formula (II) respectively (S, S).
n and R1 are selected from one of the following groups 17a) — g7i]:
(7a) n is 0 or 1 and R1 is halogen, -OR0, -N(R0)2, or -SR0; wherein each R0 is
independently hydrogen or C1_6alkyl.
(7b) n is 0 or 1 and R1 is fiuoro, chloro, y, or y.
(7c) n is 0 or 1 and R1 is halogen.
(7d) n is 0 or 1 and R1 is fiuoro or chloro.
(7e) n is l and R1 is halogen, -OR0, -N(R0)2, or -SR0; wherein each R0 is independently
hydrogen or C1_6alkyl.
(71) n is l and R1 is fiuoro, chloro, hydroxy, or methoxy.
(7g) n is 1 and R1 is halogen.
(7h) n is 1 and R1 is fiuoro or chloro.
(7i) n is 0.
RC is selected from one of the followin rou s 8a — 8
(8a) RC is hydrogen or C1_4alkyl.
(8b) RC is hydrogen or C1_2alkyl.
(8c) RC is hydrogen or methyl.
(8d) RC is hydrogen.
(8e) RC is C1_6alkyl.
(81) RC is C1_4alkyl.
(8g) RC is methyl.
R3 is ed from one of the following groups 1921)- 19X):
(93) R3 is aryl, heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl, 3—10 membered heterocyclyl,
or C3_gcycloalkle1_6alkyl-, wherein the C3_gcycloalkyl, C3_gcycloalkenyl, 3-10
membered heterocyclyl, and C3_gcycloalkle1_6 alkyl—, are each optionally and
independently substituted by one =R32 group and each optionally and independently
substituted by one or two R31 groups; and the aryl and heteroaryl groups, are each
optionally substituted by one or two R31 groups.
(9b) R3 is phenyl, a five or six membered heteroaryl, monocyclic cloalkyl,
monocyclic C5_gcycloalkenyl, a five or six membered clic heterocyclyl, or
(monocyclic C5_gcycloalkyl)C1_6 alkyl-, wherein the cloalkyl, C5_gcycloalkenyl,
— 6 membered heterocyclyl, and cloalkle1_6 alkyl—, are each optionally and
independently substituted by one =R32 group and each optionally and independently
substituted by one or two R31 groups; and the phenyl and heteroaryl groups, are each
optionally substituted by one or two R31 groups.
(9C) R3 is phenyl or a five or six membered heteroaryl, each optionally tuted by one
or two R31 groups.
(9d) R3 is monocyclic C5_gcycloalkyl, monocyclic cloalkenyl, a five or six membered
monocyclic heterocyclyl, or (monocyclic C5_gcycloalkyl)C1_6alkyl—, each optionally
substituted by one =R32 group and one or two R31 groups.
\ \K»
k a!
(R )m/(\’)—Z
(96) R . p where1n bond a 1s a s1ngle bond or a double bond; m 1s 0,. . . .
, l, or 2;
p is 0 or 1; and wherein
when bond a is a single bond, then Z is —C(R36)2-, —C(=R32)-, —N(R35)—, or —O—,
wherein each R36 is independently hydrogen or R31; and
R35 is hydrogen, C1_6alkyl, , -S(O)2R, —C(O)OR, -C(O)N(R)2, —S(O)ZOR, or
-S(O)2N(R)2;
and when bond a is a double bond, then Z is )= or —N=.
R31 Z
( )m
(91) R3 is P wherein bond a is a single bond or a double bond; m is 0,
, l, or 2;
p is 0 or 1; and wherein
when bond a is a single bond, then Z is —C(R36)2-, —C(=R32)-, —N(R35)—, or —O—,
wherein each R36 is ndently en or R31; and
R35 is hydrogen, C1_6alkyl, -C(O)R, -S(O)2R, —C(O)OR, -C(O)N(R)2, —S(O)ZOR, or
-S(O)2N(R)2;
and when bond a is a double bond, then Z is —C(R36)= or —N=.
(9g) As group (9f), wherein when bond a is a single bond, then Z is —C(R36)2- or 2)—
; and when bond a is a double bond, then Z is —C(R36)= or —N=.
(9h) As group (9f), wherein m is 0; when bond a is a single bond, then Z is —C(R36)2- or
—C(=R32)—; and when bond a is a double bond, then Z is —C(R36)= or —N=.
(9i) As group (9f), wherein bond a is a single bond; and Z is —C(R36)2- or —C(=R32)—.
(91) As group (9f), wherein bond a is a single bond; and Z is —C(R36)2-.
(9k) As group (9f), wherein bond a is a single bond; and Z is —C(=R32)—.
(91) As group (9f), wherein m is 0; bond a is a single bond; and Z is —C(R36)2- or —
C(=R32)-.
(9111) As group (9f), wherein m is 0; bond a is a single bond; and Z is )2—.
(911) As group (9f), wherein m is 0; bond a is a single bond; and Z is —C(=R32)—.
(90) As group (9f), n bond a is a single bond; and Z is —C(R36)2- or —C(=R32)—,
wherein each R36 is independently hydrogen, halogen, C1_6alkyl, -C1_6alkyl-OH,
loalkyl, or -OH, wherein
R32 is =0, =C(R34)2, =(spiro—C3_gcycloalkyl), or =(spiro—(3—8 membered
cyclyl)), wherein each R34 is independently hydrogen, halogen, C1_6alkyl,
C1_6haloalkyl, C3_gcycloalkyl, or 3—8 membered heterocyclyl.
(9p) As group (9f), wherein m is 0; bond a is a single bond; and Z is —C(R36)2- or —
C(=R32)—, wherein each R36 is independently hydrogen, halogen, C1_6alkyl,
-C1_6alkyl-OH, C1_6haloalkyl, or -OH, wherein
R32 is =0, =C(R34)2, =(spiro—C3_gcycloalkyl), or =(spiro—(3—8 membered
heterocyclyl)), wherein each R34 is independently hydrogen, halogen, C1_6alkyl,
C1_6haloalkyl, C3_gcycloalkyl, or 3—8 membered heterocyclyl.
(9(1) As group (9f), wherein bond a is a single bond; and Z is —N(R35)— or —O—.
(9r) R3 is en, C1_6alkyl, aryl, aryl, C3_gcycloalkyl, cloalkenyl, 3-10
membered heterocyclyl, or C3_gcycloalkle1_6alkyl, wherein
the C1_6alkyl, cloalkyl, C3_gcycloalkenyl, 3—10 membered heterocyclyl,
and C3_gcycloalkle1_6alkyl, are each optionally substituted by one =R32 group and
one or two R31 groups;
the aryl and heteroaryl groups, are each optionally substituted by one or two
R31 groups; wherein
each R31 is independently halogen, cyano, nitro, kyl, -C1_6alkyl-R33,
C1_6haloalkyl, —OR, —N(R)2, —SR, —C(O)OR, -C(O)N(R)2, -C(O)R, -S(O)R, —S(O)OR,
-S(O)N(R)2, -S(O)2R, —S(O)ZOR, —S(O)2N(R)2, —OC(O)R, -OC(O)OR, -OC(O)N(R)2,
—N(R)C(O)R, —N(R)C(O)OR, —N(R)C(O)N(R)2, wherein R33 is —OR, —N(R)2, or -SR;
R32 is oxo, =C(R34)2, o—C3_gcycloalkyl), or =(spiro—(3—10 membered
cyclyl)), wherein each R34 is independently hydrogen, halogen, kyl, or
C3_gcycloalkyl.
(95) R3 is aryl, aryl, C3_gcycloalkyl, C3_gcycloalkenyl, or 3—10 membered
heterocyclyl, wherein the C3_gcycloalkyl, C3_gcycloalkenyl, and 3—10 membered
heterocyclyl are each ally substituted by one =R32 group and one, two, three, or
four R31 groups; and
the aryl and heteroaryl are each optionally substituted by one, two, three, or four R31
groups.
(9t) R3 is phenyl, cyclopentyl, cyclohexyl, cyclohexenyl, furanyl, tetrahydropyranyl,
piperidinyl, imidazolyl, thiazolyl, each optionally substituted by one, two, three, or
four R31 groups, and wherein the cyclopentyl, cyclohexyl, cyclohexenyl, andy
piperidinyl groups are each optionally substituted by one =R32 group.
(911) R3 is phenyl, entyl, cyclohexyl, cyclohex-l-en-l-yl, cyclohexen-l-yl, furan-
2—yl, furanyl, tetrahydropyranyl, tetrahydropyranyl, piperidin-3 -yl, piperidin-
4—yl, imidazol—2—yl, imidazol—4—yl, thiazol—2—yl, thiazol—4—yl, thiazol—S—yl, each
optionally substituted by one or two R31 groups, and wherein the cyclopentyl,
cyclohexyl, exenyl, andy piperidinyl groups are each optionally substituted by
one =R32 group.
(9V) Any one of groups (9a) — (9u), wherein each R is independently hydrogen, C1_6alkyl,
C1_6haloalkyl, aryl, aryl, cloalkyl, C3_gcycloalkenyl, 3—10 membered
heterocyclyl, arle1_6alkyl, heteroarle1_6alkyl-, C3_g cycloalkle1_6alkyl-,
cloalkenle1-6alkyl-, or (3-10 membered heterocyclyl)C1_6alkyl-.
(9w) Any one of groups (9a) — (9u), wherein each R is independently hydrogen, C1_6alkyl,
C1_6haloalkyl, phenyl, 5- or 6-membered heteroaryl, C3_gcycloalkyl, C3_gcycloalkenyl,
3—8 membered heterocyclyl, benzyl, (5— or 6—membered heteroaryl)C1_6alkyl—, C3_g
cycloalkle1_6alkyl-, C3_gcycloalkenle1-6alkyl—, or (3—8 membered
heterocyclyl)C1_6alkyl—.
(9X) Any one of groups (9a) — (9u), n each R is independently hydrogen or
C1_6alkyl.
Particular embodiments of this aspect of the invention include compounds of any one
of the formulae (11), (11’), and (Ila) — (11d), each as defined in each of the following rows,
wherein each entry is a group number as d above and a dash "-" indicates that the
variable is as defined for a (11), or (11’), or defined according to any one of the
able variable def1nitions (7a)—(9t) [e.g., when RC is a dash, it can be either as defined
for Formula (11) or (11’) or any one of definitions (821)—(8g)]:
WO 42237
(2)-37 11b 7g
(2)-38 Hc
(2)-39 11d
(2)-99 Ed 7i (2)430
(2)400 Hf 7i (2)431
(2)401 Hg 7i (2)432
(2)402 11h 7i (2)433
(2)—103 11b (2)434
(2)404 11c (2)—135
(2)—105 Hd (2)—136
(2)—106 Hf (2)—137
(2)—107 Hg (2)—138
(2)—108 (2)439
(2)440
(2)441
(2)442
(2)443
(2)413 (2)444
(2)414 (2)445
(2)415 (2)-146
(2)-116 (2)447
(2)417 8
(2)-118 (2)449
(2)450
(2)451
(2)452
(2)453
(2)454
(2)424 (2)455
(2)425 6
(2)-126 (2)—157
(2)427 (2)—158
(2)-128 (2)—159
(2)—160
(2)-161 (2)—170
(2)-162 (2)—171
(2)—163 — (2)—172
(2)-164 (2)—173
(2)-165 (2)—174 - 7h 9b 7a 9b - (2)—175 - 7i 9e -
(2)—167 - 7a 9e - (2)—176 - 7i 9V -
(2)—168 - 7a 9b 7i 9b -
(2)—169 — 7g 9e —
In r aspect, the present disclosure provides compounds that are
Structure Name
N 2-(5H-imidazo[5,1-a]isoindoly1)ethanol
l />
\l ethyl 2-(5H-imidazo[5,1-a]isoindoly1)acetate
N O
/ />
N 0 2—(5H—imidazo[5, 1—a]isoindol—5—y1)acetic acid
I />
\ 2-(5H-imidazo[5,1-a]isoindol—5—y1)—N—
methylacetamide
(E)—5-(2—bromostyry1)-5H-imidazo[5, 1-
1273
a]isoindole
2-(6-chloro-5H-imidazo[5,1-a]isoindolyl)
1286
N OH cyclohexylethanol
2-(6-chloro-5H-imidazo[5,1-a]isoindolyl)
1287
N O cyclohexylethanone
imidazo[5,1-a]isoindolyl)ethyl 2-
1288 O
O (((1R,2R,5S)isopropyl
N O
N methylcyclohexyl)oxy)acetate
N O
O tert-butyl (4-(2-(5H-imidazo[5,1-a]isoindol
1300
N O yl)acetyl)phenyl)carbamate
1-(4-aminophenyl)(5H-imidazo[5,1-
1301
N O a]isoindolyl)ethanone
N O
tert-butyl (4-(1-hydroxy(5H-imidazo[5,1-
1302 O
N OH a]isoindolyl)ethyl)phenyl)carbamate
AH26(9298372_1):RTK
Structure Name
N H2
0 O 1-(4-amin0pheny1)(5H-imidazo[5,1-
1303
N 0H a]isoind01—5 —y1)ethan01
I />
1-cyclohexyl-Z-(SH-imidazo[5,1-a]isoind01
1304
N CH y1)ethan01
I /)
O 0 +0" 2—(5H-imidazo[5,1-a]isoind01y1)—1—(3 —
1306 W
N O O nitropheny1)ethan0ne
/ />
O 0 +0" 2—(5H-imidazo[5,1-a]isoind01y1)—1—(3 —
1307 Ff
N OH O nitropheny1)ethan01
imidazo[5,1-a]isoind01y1)(2—
nitropheny1)ethan0ne
2-(5H-imidazo[5,1-a]isoind01y1)(2—
nitropheny1)ethan01
tert-butyl (2-(2-(5H-imidazo[5,1-a]isoind01—5—
y1)acety1)phenyl)carbamate
Structure Name
tert-butyl (2-(1-hydr0xy-2—(5H-imidazo[5 ,1-
a]isoindol-S-y1)ethy1)pheny1)carbamate
1-(2-amin0pheny1)-2—(5H-imidazo [5 ,1-
a]isoind01y1)ethan0ne
1-(2-amin0pheny1)-2—(5H-imidazo [5 ,1-
a]isoind01—5 -y1)ethan01
1-(2-ch10r0pheny1)(5H-imidazo [5 ,1-
nd01y1)ethan0ne
1-(5H-imidazo[5,1-a]isoind01—5-y1)
methylpropan01
1-(2-ch10r0phenyl)(5H-imidazo[5, 1-
a]isoind01—5 han01
1-(3 -ch10r0pheny1)(5H-imidazo[5 ,1-
a]isoind01—5 -y1)ethan01
2—(5H-imidazo[5,1-a]isoind01y1)
phenylethanone
Structure Name
2—(5H-imidazo[5, 1-a]isoind01—5-y1)-1 -
1349
phenylethanol
— -dimethylfuran-3 -y1)(6-flu0r0—5H—
1352 \ o . . .
N 1m1dazo[5, 1 -a]1501nd01-5 -y1)ethan01;.
/ /) HO
O O
(a. 1-(3 -ch10r0pheny1)(5H-imidazo[5 ,1-
13 5 3
N G a]isoind01—5—y1)ethan0ne
I x)
ohexy1(6-flu0r0-5H-imidazo[5, 1 -
13 5 6
a]isoind01y1)ethan0ne
1-cyclohexy1—2-(6-flu0r0-5H-imidazo[5 ,1-
13 5 7
a]isoind01—5 -y1)ethan01
2—(5H-imidazo[5,1-a]isoind01y1)
13 5 8
/ N) OH (tetrahydro-ZH-pyrany1)ethanol
2-(7-ch10r0-5H-imidazo[5, 1-a]isoind01y1)— 1-
1359
N (3H cyclohexylethanol
/ />
(Z)—1-cyclohexy1(5H-imidazo[5, 1-a]isoind01-
1360 |
N N \ 5— 1 ethanone oxime
I /> W Y)
N0. Structure Name
1-cyclopenty1-2—(5H-imidazo[5,1-a]isoind01—5-
1362
N OH
/ x} y1)ethan01
«Lax tert-butyl 4-(1-hydr0xy(5H-imidazo[5 ,1-
a] ol-S -y1)ethy1)piperidinecarb0xy1ate
1363
1-cyclohexyl-Z-(SH-imidazo[5,1-a]isoind01-5—
1364
N N H2 y1)ethanamine
/ />
O 0 EL
1367 g OX tert-butyl (3 dr0xy-2—(5H-1m1dazo[5, 1-
’ N> a]isoindol-S-y1)ethy1)pheny1)carbamate
O O
N H2 1-(3 -amin0pheny1)-2—(5H-imidazo [5 ,1—
13 69
N 0H a]isoind01—5 -y1)ethan01
I />
2-(5H-imidazo[5,1-a]isoind01y1)(piperidin-
1370
N OH 4-y1)ethan01
/ />
4-(2—(6-flu0r0-5H-imidazo[5,1-a]isoind01y1)—
1371
W 1-hydr0xyethy1)cyclohexanol;
N CH
1-cyclohexy1(9-meth0xy-5H-imidazo[5,1-
13 72 \O
N CH a]isoind01—5 —y1)ethan01
/ x>
N0 Structure Name
1373 H0); 5—(2—CyClohexy1hydr0xyethy1)-5H-
N7 I
HO imidazo[5,1—a]isoind01—9—01
/ />
OH 2-(8-ch10r0-5H-imidazo[5, oind01y1)— 1-
1374
/ .
/) cyclohexylethanol,
1-(cyclohexeny1)-2—(5H-imidazo[5, 1-
1375
a]isoind01-5 -y1)ethan01;
ohexy1—2-(8-flu0r0-5H-imidazo[5 ,1-
13 76 F
W a]isoind01-5 -y1)ethan01;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01y1)
1378
/ E‘) HO (1,4—di0xaspir0[4.5]decany1)ethan01;
4-(2—(6-flu0r0-5H-imidazo[5,1-a]isoind01y1)-
1379
1 -hydr0xyethy1)cyclohexan0ne;
\ N»
F oH
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01y1)
13 81
\ W (4-methylenecyc10hexy1)ethan01;
O 1— C( yclohexeny)1 5H-imidazo 5,1-( [
1382
a]isoind01-5 -y1)ethan01;
Structure Name
1—(4-(hydr0xymethy1)cyclohexyl)'2'(5H'
1383
OH imidazo[5 soind01—5 -y1)ethan01;
\ T|N
(4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—5—
1384 N N yl)ethy1)piperidiny1)(thi0phen
2, EHO /
y1)methan0ne;
db? 1-(4-(1-hydr0xy(5H-imidazo[5 ,1-a]isoind01—
hy1)piperidiny1)ethan0ne;
\7N N
2-(5H-imidazo[5,1-a]isoind01—5-y1)(4-
1386 @{hN\j methylenecyc10hexy1)ethan01;
F OH
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5-y1)
13 87
N (4-methylcyclohexy1)ethanol;
\ W
N 2—(5H-imidazo[5,1-a]isoind01—5-y1)(1-methy1—
1389 l y . .
N N 1H-1m1dazoly1)ethan01;
\ \
2-(5H-imidazo[5, 1-a]isoind01—5-y1)(thiazol
1390
N / j]
1)et anoh 1 ;
\ W y
2-(5H-imidazo[5,1-a]isoind01—5-y1)(thiazol
1391 _
N 8VN y1)ethan01;
N0 Structure Name
1—(4—(1—hydr0xy—2—(5H—imidazo[5,1—a]isoind01—
1392 N o 5-y1)ethy1)piperidiny1)-2,2—dimethy1pr0pan
\ \N {i
one;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5-y1)
1393 O
N /
(f 2 1) th 1 uran— e —y ano;
\ P ’
F OH
2—(6—flu0r0—5H-imidazo[5, 1-a]isoind01—5-y1)
1394 N/ /
7 N\) (1-methy1— 1 H-imidazol-Z-y1)ethan01;
\ /
(1 S)cyc10hexy1—2—(5H-imidazo[5, 1 -a]isoind01—
1396
\ P 5—y1)ethan01;
-cyclohexy1—2—(5H-imidazo[5, 1-
1397
W a]isoind01-5 -y1)ethan01;
u0r0-5H-imidazo[5, 1-a]isoind01—5-y1)
1398
\II \ (4—(i0domethylene)cyc10hexy1)ethan01;
1-cyc10hexy1—2—(5H-imidazo[5, 1 -a]isoind01—5-
1400
\ x) y1)pr0pan01;
1402 WN 2—(5H-imidazo[5,1-a]isoindol-S-y1)acet0nitrile;
\ />
WO 42237
N0 Structure Name
1—cyc10hexy1—3 —(6—flu0r0-5H—imidazo[5 ,1—
1403
N a]isoindol-S-y1)pr0pan-2—01;
\ />
1-cyc10hexy1—3-(5H-imidazo[5,1-a]isoind01—5-
1404
I /> y1)pr0pan-2—01;
1-(4-(1-hydr0xy(5H-imidazo[5 ,1-a]isoind01—
1405
-y1)ethy1)piperidiny1)phenylethan0ne;
1-(4,4-difluorocyclohexy1)—2—(6—flu0r0—5H—
1406
N imidazo[5, 1 -a]isoind01—5 -y1)ethan01;
\ N F
1-(4,4-difluorocyclohexy1)(5H-imidazo[5, 1 -
1407
\ W a]isoind01-5 -y1)ethan01;
N F
F \N /\\
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5-y1)
1409
N OH hy1— 1 H-imidazol-S -y1)ethan01;
| />
F 1-(4-(cyclopropylmethylene)cyc10hexy1)-2—(6-
1410
SW \ fluoro-SH-imidazo[5, 1-a]isoindol-S-y1)ethan01;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5-y1)
141 1
N (4-(pr0pany1idene)cyc10hexy1)ethan01;
\ j'N
Structure Name
\ (E)(2—cyclohexy1viny1)-5H-imidazo[5, 1-
1412
N a]isoindole;
/ x)
2-(9-flu0r0-5H-imidazo[5, oind01—5-y1)
1413
(4-methylcyclohexy1)ethanol;
1-(cyclohex-3 -en-1—y1)—2—(6—flu0r0—5H—
1414
imidazo[5 ,1-a]isoindol-S-y1)ethan01;
(R)—1-cyclohexy1—2-((R)-5H-imidazo[5, 1-
1415
a]isoind01—5 -y1)ethan01
(S)—1—cyclohexy1—2-((R)—5H-imidazo[5, 1-
a]isoind01—5 -y1)ethan01
(S)— 1 —CyCthexy1—2-((S)-5H-imidazo[5, 1 -
a]isoind01—5 -y1)ethan01
(R)cyclohexy1—2—((S)-5H-imidazo[5, 1-
a]isoind01—5 -y1)ethan01
0hexy1—2—(5H-imidazo[5, 1 -a]isoind01—5—
ylidene)ethan01
N0 ure Name
1-cyc10hexy1—2-(5H-imidazo[5,1-a]isoind01—5—
1420
y1)ethy1 acetate
1 -(4-(2-(benzyloxy)ethylidene)cyc10hexy1)—2-
1421
(5H-imidazo[5,1-a]isoind01—5-y1)ethan01
1 -(1-(benzylsulfony1)piperidiny1)(5H-
1422
imidazo[5,1-a]isoind01—5-y1)ethan01
1-(4-(1-hydr0xy(5H-imidazo[5 ,1-a]isoind01—
1423 5 -y1)ethy1)piperidiny1)(pyrimidin-5 -
y1)ethan0ne
2-(3 ,4-diflu0r0pheny1)(4-(1-hydr0xy(5H-
1424 imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidin
an0ne
cyclohexy1(4-(1-hydr0xy(5H-imidazo[5,1-
1425
a] isoindol-S -y1)ethy1)piperidiny1)methan0ne
methyl 4-(1-hydr0xy(5H-imidazo[5,1-
1426
a]isoindol-S-y1)ethy1)cyclohexanecarboxylate
1-cyc10hexy1—2-(5H-imidazo[5,1-a]isoind01-5—
1427
y1)ethy1 phenylcarbamate
4-(1-cyclohexyl(5H-imidazo[5,1-
1428 a]isoindolyl)ethoxy)
anoic acid
4-(1-hydroxy(5H-imidazo[5,1-
1429
a]isoindolyl)ethyl)cyclohexanol
ohexyl(5H-imidazo[5,1-
1431
a]isoindolyl)ethyl benzoate
4-(1-hydroxy(5H-imidazo[5,1-
a]isoindolyl)ethyl)-N-(2-
1432
(methylsulfonamido)ethyl)
cyclohexanecarboxamide
(2S)(1-cyclohexyl(5H-
imidazo[5,1-a]isoindolyl)ethoxy)-
1433
3-methyloxobutanaminium
chloride
sodium 1-cyclohexyl(5H-
1434 imidazo[5,1-a]isoindolyl)ethyl
phosphate
AH26(9298372_1):RTK
Structure Name
OH 4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—5—
143 6
HO y1)ethy1)cyclohexanecarboxylic acid
/ N)
/ 1-(4-(1-hydr0xy(5H-imidazo[5 ,1-a]isoind01—
1437 \ / 5—y1)ethy1)piperidiny1)-2—(pyridin
/N/) HO
y1)ethan0ne
2—(5H-imidazo[5,1-a]isoind01—5-y1)
1438
/ N (Spiro[2.5]octan—6—y1)ethan01
J HO
O 2—(4-flu0r0pheny1)(4-(1-hydr0xy(5H-
143 9 NWF imidazo[5,1-a]isoindol-S-y1)ethy1)piperidin
/N/) HO
y1)ethan0ne
(ZS)cyclohexyl-Z-(SH-imidazo[5,1-a]isoind01-
1440 N
/ A O
O 5-y1)ethy1 2-aminopr0pan0ate
H2N“W:
/ OH 1-(4-(2-hydr0xyethylidene)cyc10hexy1)-2—(5H—
1441
/ 3 1m1dazo[5, 1-a]1somd01y1)ethan01
1442 O (ZS)cyclohexyl-Z-(SH-imidazo[5,1-a]isoind01-
/ j W thy1 idine-Z-carboxylate
(2 S)—5—( 1 —cyclohexy1(5H-imidazo[5, 1-
a]isoind01—5-y1)ethyl) 1-methy12-
aminopentanedioate
2012/033245
Structure Name
0 1—(4—((S)—1—hydr0xy—2—((S)—5H—imidazo[5,1—
1447 a]isoind01—5—y1)ethy1)piperidin—1—y1)—2—
N ”YORK/Q
/N/ HO phenylethanone
O (3 —flu0r0hydr0xypheny1)(4-(1-hydr0xy
1448 (5H-imidazo[5,1-a]isoind01y1)ethy1)piperidin-
/ A HO 1-y1)methan0ne
N,4 4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—5-
1449 N
H y1)ethy1)-N—pheny1piperidinecarb0xamide
0 (4-flu0ropheny1)(4-(1-hydr0xy(5H-
1450 imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidin
\ \\,Z I0 han0ne
z “Fl
(ZS)amin0(4-(1-hydr0xy-2—(5H-
1451 H21:ll imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidin
\ \\/z I0
y1)—3 -pheny1pr0pan0ne
(4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—5—
1454 y1)ethy1)piperidiny1)((S)-pyrr01idin-2—
; N
HO y1)methan0ne
(1R,4s)—4-(2-((S)flu0r0-5H-imidazo[5, 1-
1455 / N HOBQOW, )0H a]isoind01—5-y1)hydr0xyethy1)cyclohexy1
benzoate
H (1R,4s)—4-(2-((S)flu0r0-5H-imidazo[5, 1—
1456 ""'
/ N a]isoind01—5-y1)hydr0xyethy1)cyclohexanol
NA HO
Structure Name
1-(3 -(1-hydr0xy(5H-imidazo[5,1-a]isoind01—
N 5-y1)ethy1)azetidiny1)-2—phenylethan0ne
9 HO
N4NH 3 -(1-hydr0xy(5H-imidazo[5,1-a]isoind01—5-
/ 5 HO y1)-N-pheny1azetidinecarb0xamide
N4 tert—butyl 3—(1—hydr0xy—2—(5H—imidazo[5,1—
X a]1s01nd01—5-y1)ethy1)azet1d1necarb0xy1ate. . . .
/ S HO
NH 1-(azetidin-3 -y1)-2—(5H-imidazo[5, 1 -a]isoind01—
—y1)ethan01
tert—butyl 4—((S)—1—hydr0xy—2—((R)—5H—
1469 imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidine
carboxylate
tert—butyl 4—((R)—1—hydr0xy—2—((R)—5H—
1470 o[5,1-a]isoind01y1)ethy1)piperidine
carboxylate
utyl 4—((R)—1—hydr0xy—2—((S)—5H—
1471 imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidine
carboxylate
tert—butyl 4—((S)—1—hydr0xy—2—((S)—5H—
1472 imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidine
carboxylate
Structure Name
1-((1s,4s)—4-(benzyloxy)cyclohexy1)—2—(6—flu0r0—
1473
5H-imidazo[5,1-a]isoind01—5-y1)ethan01
/ 2-(5H-imidazo[5,1-a]isoind01—5-y1)(pyridin
1474
N [<1 1 h 1
/ A y )et ano
(1r,4r)(2—(6-flu0r0-5H-imidazo[5, 1 —
1475 H
/ JN OH d01—5-y1)hydr0xyethy1)cyclohexanol.
/ HO
O 4-((S)hydr0xy((R)-5H-imidazo[5,1-
1476
N N4” a]isoind01—5 -y1)ethy1)-N-pheny1piperidine
A HO carboxamide
4-((R)hydr0xy((R)-5H-imidazo[5 ,1-
1477 a]isoind01—5 -y1)ethy1)-N-pheny1piperidine
carboxamide
4-((R)hydr0xy((S)-5H-imidazo[5,1-
1478 a]isoind01—5 hy1)-N-pheny1piperidine
carboxamide
4-((S)hydr0xy((S)-5H-imidazo[5,1-
1479 a]isoind01—5 -y1)ethy1)-N-pheny1piperidine
carboxamide
1-(4-((R)hydr0xy-2—((S)-5H-imidazo[5 ,1-
1480 a] isoindol-S -y1)ethy1)piperidiny1)
phenylethanone
(1R,4s)((S)((R)fluoro-5H-imidazo[5,1-
1482
a]isoindolyl)hydroxyethyl)cyclohexanol
(1S,4s)((R)((R)fluoro-5H-imidazo[5,1-
1483
ndolyl)hydroxyethyl)cyclohexanol
(1S,4s)((R)((S)fluoro-5H-imidazo[5,1-
1484
a]isoindolyl)hydroxyethyl)cyclohexanol
(1R,4s)((S)((S)fluoro-5H-imidazo[5,1-
1485
a]isoindolyl)hydroxyethyl)cyclohexanol
(1S,4r)((S)((S)fluoro-5H-imidazo[5,1-
1486
a]isoindolyl)hydroxyethyl)cyclohexanol
(1S,4r)((S)((R)fluoro-5H-imidazo[5,1-
1487
a]isoindolyl)hydroxyethyl)cyclohexanol
(1R,4r)((R)((S)fluoro-5H-imidazo[5,1-
1488
a]isoindolyl)hydroxyethyl)cyclohexanol
AH26(9298372_1):RTK
N0 Structure Name
(1R,4r)((R)-2—((R)flu0r0-5H-imidazo[5, 1 —
1489
a]isoind01—5-y1)hydr0xyethy1)cyclohexanol
1-(4-((S)hydr0xy((S)-5H-imidazo[5,1-
1490 a]isoind01—5-y1)ethy1)piperidiny1)
(tetrahydro-2H-pyrany1)ethanone
1-(4-((R)hydr0xy((R)-5H-imidazo[5,1-
1491 nd01—5-y1)ethy1)piperidiny1)
phenylethanone
N—((1s,4s)(1-hydr0xy(5H-imidazo[5,1-
1492
a] isoindol-S -y1)ethy1)cyc10hexy1)benzamide
1-(4-((S)hydr0xy((R)-5H-imidazo[5,1-
1493 a] isoindol-S -y1)ethy1)piperidiny1)
phenylethanone
2-(5H-imidazo[5,1-a]isoind01—5-y1)(1-
1494 (phenylcarbam0y1)piperidiny1)ethy1
phenylcarbamate
4-((R)hydr0xy((S)-5H-imidazo[5,1-
1495 a]isoind01—5 -y1)ethy1)-N—((1r,4R)
hydroxycyc10hexy1)piperidinecarb0xamide
hydr0xy((S)-5H-imidazo[5,1-
1496 a] isoindol-S -y1)ethy1)-N-(tetrahydr0-2H-pyran
y1)piperidinecarb0xamide
Structure Name
4-((S)hydr0xy((S)-5H-1m1dazo[5,1-
1497
N "MB/C Q’ C : a]isoind01—5—y1)ethy1)—N—((1r,4S)—4—
/N/ HO
hydroxycyc10hexy1)piperidinecarb0xamide
1498 O/\© 1-((1r,4r)—4-(benzyl0xy)cyc10hexy1)-2—(5H-
/ N) H0 imidazo[5,1-a]isoind01—5-y1)ethan01
F Q
O 1-((1r,4r)(benzy10xy)cyc10hexy1)—2—(6—flu0r0—
1499
N 5H-imidazo[5, 1-a] isoind01y1)ethan01
/ H
/) HO
O 1-(4-((R)hydr0xy-2—((S)-5H-imidazo[5 ,1-
1500
N \=/C/NWC
a] isoind01-5 -y1)ethy1)piperidiny1)
/N/) HO (tetrahydro-2H-pyrany1)ethanone
N 2-(5H-imidazo[5,1-a]isoind01—5-y1)(pyridin
1501
N y1)et anoh 1
/ 9 HO
/ imidazo[5,1-a]isoind01—5-y1)(pyridin-2—
1502 \ /
N N y1)et anoh 1
/ A HO
O 4-((R)hydr0xy((S)-5H-imidazo[5,1-
1503 4NC0 a]isoind01—5 hy1)—N—(tetrahydro-ZH—pyran—4—
N VON§
/N/ H
HO y1)piperidine—1—carb0xamide
O N-cyclohexy1((R)hydr0xy-2—((S)-5H-
"m\_/C/N4N
1504 imidazo[5,1-a]isoind01y1)ethy1)piperidine
N :
/N/) H
HO carboxamide
N-((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol
1505
yl)ethyl)cyclohexyl)benzamide
N-cyclopentyl((R)hydroxy((S)-5H-imidazo[5,1-
1507
a]isoindolyl)ethyl)piperidinecarboxamide
2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(4-
1508
(trifluoromethyl)cyclohexyl)ethanol
2-(5H-imidazo[5,1-a]isoindolyl)(4-
1509
(trifluoromethyl)cyclohexyl)ethanol
2-(4-fluorophenyl)(4-((R)hydroxy((S)-5H-
1511
imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)ethanone
hydroxy((S)-5H-imidazo[5,1-a]isoindol
1512 yl)ethyl)-N-(4-(trifluoromethyl)phenyl)piperidine
carboxamide
(4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindol
1513
yl)ethyl)piperidinyl)(1H-imidazolyl)methanone
AH26(9298372_1):RTK
1-(5H-imidazo[5,1-a]isoindolyl)methylbutanol
N OH
2-(5H-imidazo[5,1-a]isoindolyl)(tetrahydro-2H-
N pyranyl)ethanol
N HO O
2-(5H-imidazo[5,1-a]isoindolyl)(piperidin
N yl)ethanol
N HO NH
1-cyclohexyl((R)-5H-imidazo[5,1-a]isoindol
N anol
N HO
1-cyclohexyl((S)-5H-imidazo[5,1-a]isoindol
N yl)ethanol
N HO
1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)propan
N ol
N OH
AH26(9298372_1):RTK
Structure Name
F 1-cyclohexy1(9-flu0r0-5H-imidazo[5, 1 -
/ N a]isoind01—5 han01
Na Ho
O “m N—(4—(1—hydr0xy—2—(5H—imidazo[5,1—a]isoind01—
O O O
-y1)ethy1)pheny1)(tetrahydr0-2H-pyran
N OH
I N/> y1)acetamide
2—(5H—imidazo[5, 1 —a]isoind01—5—y1)—1—(1H—
/ N OH imidazol-Z-yl)ethan01
\ NH 2—(5H-imidazo[5, oind01—5-y1)(1H-
/ S OH 1m1dazolyl)ethan01
l \
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01y1)
N OH (thiazoly1)ethan01
(5 S)—5—(2—cyclohexy1—2—hydr0xyethy1)—5H—
/ N OH imidazo[5,1—a]isoind01—6—01
1-(2-aminocyclohexy1)(5H-imidazo[5,1-
/ N a]isoind01—5 -y1)ethan01
N-(1-cyclohexy1(5H-imidazo[5,1-a]isoind01—
-y1)ethy1)acetamide
/ aN
N0 Structure Name
N-(2-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—
-y1)ethy1)cyclohexy1)acetamide
1-cyclohexyl-Z-(SH-imidazo[5,1-a]isoind01-5—
yl)—N-methylethanamine
cyclohexy1((S)-5H-imidazo[5,1-
\ \\,z E
,_/ a]isoindol-S-y1)ethyl)amin0)ethanesulf0namide
\0Z IN
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01y1)- 1-
\ \\,z OI (1-methy1piperidiny1)ethan01
I0 ZIN
1-(4-aminocyclohexy1)(5H-imidazo[5,1-
\ Z a]isoind01—5 -y1)ethan01
HO N
37/ N—(4—(1—hydr0xy—2—(5H—imidazo[5, 1 —a]isoind01—
/ N 5-y1)ethy1)cyclohexy1)acetamide
N H2
1-(4-(aminomethy1)cyc10hexy1)-2—(5H-
imidazo[5, 1-a]isoind01y1)ethan01
/ aN
O 4-(1-hydroxy(5H-imidazo[5,1-a]isoindol
yl)ethyl)cyclohexanecarboxamide
1-(3-aminocyclohexyl)(5H-imidazo[5,1-a]isoindol
N anol
2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyridin
ylmethoxy)cyclohexyl)ethanol
2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyridin
ylmethoxy)cyclohexyl)ethanol
2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyridin
ylmethoxy)cyclohexyl)ethanol
1-((1r,4r)((2-aminopyridinyl)methoxy)cyclohexyl)-
2-(5H-imidazo[5,1-a]isoindolyl)ethanol
AH26(9298372_1):RTK
Structure Name
2—(5H-imidazo[5,1-a]isoind01—5-y1)((1r,4r)
OH (pyraziny1meth0xy)cyc10hexy1)ethan01
2—(5H-imidazo[5,1-a]isoind01—5-y1)((1r,4r)
OH (pyrimidin-S -ylmethoxy)cyclohexy1)ethan01
O /N\ NH2 ,4r)((6-aminopyridin
om y1)meth0xy)cyc10hexy1)—2—(5H-imidazo[5, 1-
b) nd01—5 -y1)ethan01
/‘N 1-((1r,4r)((6-aminopyridin-3 -
yl)meth0xy)cyc10hexy1)—2—(5H-imidazo[5,1-
N OHH NH2
0) a]isoind01—5 -y1)ethan01
1-((1r,4r)((3 -amin0pyridin
N \ NHZ
N H y1)meth0xy)cyc10hexy1)—2—(5H-imidazo[5, 1-
/) 1/
/ nd01—5 -y1)ethan01
1-((1r,4r)—4-((2—amin0pyrimidin
y1)meth0xy)cyc10hexy1)—2—(5H-imidazo[5, 1-
a]isoind01—5 -y1)ethan01
1-((1r,4r)—4-((4-amin0pyrimidin
y1)meth0xy)cyc10hexy1)—2—(5H-imidazo[5, 1-
/) NvN a]isoind01—5 -y1)ethan01
1-((1r,4r)((5 -amin0pyridin
N HOH y1)meth0xy)cyc10hexy1)—2—(5H-imidazo[5, 1-
I) \I
N a]isoind01—5 -y1)ethan01
N0 Structure Name
W0N 4-((((1r,4r)—4-(1-hydr0xy(5H-imidazo[5, 1-
/N/) a]isoindol-S-y1)ethy1)cyc10hexy1)0xy)methy1)-
N,N—dimethy1benzamide
O N/
W0/ 3-((((1r,4r)(1-hydr0xy(5H-imidazo[5, 1 -
a]isoindol-S-y1)ethy1)cyc10hexy1)0xy)methy1)-
N)/ ()
N,N—dimethy1benzamide
2N) o
o 2—((((1r,4r)—4-(1-hydr0xy(5H-imidazo[5, 1 -
N HoH N/ a]isoindol-S-y1)ethy1)cyc10hexy1)0xy)methy1)-
N,N—dimethylbenzamide
1r,4r)—4-(1-hydr0xy(5H-imidazo[5, 1 -
N HOH nd01—5—
//) yl)ethy1)cyc1ohexy1)0xy)methy1)benzenesulfona
o‘,§\NH2
mide
O 3-((((1r,4r)(1-hydr0xy(5H-imidazo[5, 1 -
a]isoind01—5—
/ NT) 8,,0 yl)ethy1)cyc1ohexy1)0xy)methy1)benzenesulfona
6/ \NHZ mide
2—((((1r,4r)—4-(1-hydr0xy(5H-imidazo[5, 1 -
6/ “OO\\S,NH2 a]isoind01—5—
:1) H
/ yl)ethy1)cyc1ohexy1)0xy)methy1)benzenesulfona
mide
4-((((1r,4r)—4-(1-hydr0xy(5H-imidazo[5, 1 -
/ I; a]isoind01—5—
N yl)ethy1)cyc10hexy1)0xy)methy1)benzamide
0 NH2
Structure Name
3-((((lr,4r)—4-( l -hydr0xy(5H-imidazo[5, l -
a]isoind01—5—
yl)ethyl)cycl0hexyl)0xy)methyl)benzamide
2-((((lr,4r)—4-( l -hydr0xy(5H-imidazo[5, l -
a]isoind01—5—
yl)ethyl)cycl0hexyl)0xy)methyl)benzamide
methyl 4-((((lr,4r)( l -hydr0xy-2—(5H-
imidazo[5, l -a]isoind01—5—
yl)ethyl)cyclohexyl)0xy)methyl)benzoate
methyl 3-((((lr,4r)( l xy-2—(5H-
imidazo[5, l -a]isoind01—5—
yl)ethyl)cyclohexyl)0xy)methyl)benzoate
methyl 2-((((lr,4r)( l -hydr0xy-2—(5H-
imidazo[5, l -a]isoind01—5—
yl)ethyl)cyclohexyl)0xy)methyl)benzoate
imidazo[5, l -a]isoindolyl)- l -((lr,4r)
methoxycyclohexyl)ethanol
l-((lr,4r)—4-eth0xycyclohexyl)-2—(5H—
imidazo [5, l -a] isoindol-S -yl)ethanol
2—(5H-imidazo[5, l indolyl)- l -((lr,4r)
isopropoxycyclohexyl)ethanol
N0 Structure Name
1-((1r,4r)(cyclopr0py1meth0xy)cyc10hexy1)
Z\\/Z 9: idazo[5,1-a]isoind01y1)ethan01
1-((1r,4r)—4-(cyclopentylmethoxy)cycl0hexy1)-2—
II (5H-imidazo[5,1-a]isoind01y1)ethan01
\ \\/Z o
2—(5H-imidazo[5,1-a]isoind01—5-y1)((1r,4r)
(thiophen-Z-y1meth0xy)cyc10hexy1)ethan01
\ \\/Z oI:
1-((1r,4r)((1H-ind01—3 -y1)0xy)cyclohexy1)—2—
II (5H-imidazo[5,1-a]isoind01y1)ethan01
\ \\/2 O
1-((1r,4r)((1H-ind01—5 -y1)0xy)cyclohexy1)—2—
\ L2 o (5H-imidazo[5,1-a]isoind01y1)ethan01
2-(5H-imidazo[5,1-a]isoind01y1)(4-
ahydro-ZH-pyran
yl)meth0xy)cyclohexy1)ethanol
4-(((4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—
0 II ‘\0 5-
yl)ethy1)cyc1ohexy1)0xy)methy1)benzenesulfona
mide
Structure Name
H0 /—<\] . . . .
O N 2—(5H-1m1dazo[5,1-a]1somd01—5-y1)(4-(0xazol-
/ N 2-y1meth0xy)cyc10hexy1)ethan01
H0 /—<\ ]
2-(5H-1m1dazo[5,1-a]1somd01—5-y1)(4-. . . .
O N
/ N (thiazoly1meth0xy)cyc10hexy1)ethan01
NW 2—(5H—imidazo[5, 1 —a]isoind01—5—y1)— 1—(1—(1 —
/ HO imino-Z-phenylethy1)piperidiny1)ethan01
N—<ME 4-(1-hydroxy(5H-imidazo[5,1-a]isoind01—5—
/ N yl)ethy1)—N-phenylpiperidinecarb0ximidamide
HO HN \‘ N 4-(1-hydroxy(5H-imidazo[5,1-a]isoind01—5—
N-< ’
. . . . .
NH y1)ethy1)-N-(pyrldlny1)p1perld1ne
{HN carboximidamide
HO 4-(1-hydroxy(5H-imidazo[5, oind01—5-
N‘fi y1)ethy1)-N-(tetrahydro-2H-pyran
gg/N NH
y1)piperidinecarb0ximidamide
HO HNQCN N—(4—cyan0pheny1)—4—(1-hydroxy—2-(5H—
imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidine
N/J carboxamlde.
HO HNl<
N—fi t—buty1)(1-hydroxy-2—(5H-imidazo[5, 1—
/ N a]isoindol-S-y1)ethy1)piperidinecarb0xam1de
N-(tert-butyl)(1-hydroxy(5H-imidazo[5,1-a]isoindol-
-yl)ethyl)piperidinesulfonamide
1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol
yl)ethyl)piperidinyl)(3-hydroxyphenyl)ethanone
2-(1-(azetidinecarbonyl)piperidinyl)hydroxy(4-
(1-hydroxy(5H-imidazo[5,1-a]isoindol
yl)ethyl)piperidinyl)ethanone
2-cyclopentyl(4-(1-hydroxy(5H-imidazo[5,1-
a]isoindolyl)ethyl)piperidinyl)ethanone
1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol
yl)ethyl)piperidinyl)(2-methylthiazolyl)ethanone
N-cyclohexyl-N-hydroxy(1-hydroxy(5H-
imidazo[5,1-a]isoindolyl)ethyl)piperidine
amide
N-(4-(2-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol
yl)ethyl)piperidinyl)
oxoethyl)phenyl)methanesulfonamide
AH26(9298372_1):RTK
WO 42237
N0 Structure Name
HO ‘N—<] N—cyc10pr0py1—N—hydr0xy(1-hydr0xy—2-(5H—
imidazo[5,1-a]isoind01y1)ethy1)piperidine
carboxamide
HO 3 ,3 r0—1—(4—(1—hydr0xy—2—(5H-
N F
imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidin
y1)butan-1 -0ne
Z 1-(4-( 1 -hydr0xy(5H-imidazo [5 ,1-a]isoind01—
\L2 5-y1)ethy1)piperidiny1)-2—(p—t01y1)ethan0ne
.5: 1-(1-(4-aminopyrimidin-Z-y1)piperidiny1)
\L2 zA (5H-imidazo[5,1-a]isoind01y1)ethan01
I0 Z/v2
.5: 1-(1-(2-aminopyrimidinyl)piperidiny1)
\L2 z([12\ZAZ (5H-imidazo[5,1-a]isoind01y1)ethan01
N—cyclopropy1—4—(1—hydr0xy—2-(5H—imidazo[5, 1—
a]is0ind01—5-y1)ethy1)piperidinecarb0xamide
HO 2-cyclopr0pyl(4-(1-hydr0xy(5H-
imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidin
y1)ethan0ne
2-(4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—
—y1)ethy1)cyclohexylidene)acetonitrile
2c Structure Name
N CF3
Ho HH 1 4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—5—
O yl)ethyl)-N-(4-(trifluoromethy1)thiazol
y1)piperidinecarb0xamide
I0 i 4-(2—(4-(1-hydr0xy-2—(5H-imidazo[5, 1 -
O nd01—5-y1)ethy1)piperidiny1)
2\ Z
oxoethy1)benzamide
3IS’K 1-(4-(1-hydr0xy(5H-imidazo[5 ,1-a]isoind01—
Z O: O
04 5-y1)ethy1)piperidiny1)—2—(4-
2\ Z
(methylsulfony1)pheny1)ethanone
I0 4-(1-hydr0xy(5H-imidazo[5,1-a]isoind01—5—
Z023
y1)ethy1)-N—((1r,4r)—4-
z\ \\—2 methylcyclohexy1)piperidinecarb0xamide
HO 1-(4-(1-hydr0xy(5H-imidazo[5 ,1-a]isoind01—
O 5 -y1)ethy1)piperidiny1)-3 ,3 -dimethy1butan
\ L2
01’16
O:m\o” 4-(2—(4-(1-hydr0xy-2—(5H-imidazo[5, 1 -
0 a]isoind01—5-y1)ethy1)piperidiny1)
2\ Z
0X0ethy1)benzenesu1f0namide
§ N—(tert—buty1)—4—(2—(4—(1—hydr0xy—2—(5H—
I0 \
:0)
Z 0’ imidazo[5,1-a]isoind01—5 -y1)ethy1)piperidin
2\L2 yl)0x0ethy1)benzenesu1f0namide
4-(2—(4-(1-hydr0xy-2—(5H-imidazo[5, 1 -
3; a] ol-S -y1)ethy1)piperidiny1)
2\L2 oxoethy1)benzoic acid
difluoromethylene)cyc10hexy1)(5H-
imidazo[5,1-a]isoind01—5-y1)ethan01
N0 Structure Name
2-(5H-imidazo[5, oindolyl)- l -(4-(2,2,2-
trifluoroethylidene)cyclohexyl)ethanol
N—benzyl—4—(2—(6-fluoro-5H-imidazo[5, l-
a]isoindol-5 -yl)- l -
hydroxyethyl)cyclohexanecarboxamide
0 4-(2—(6-fluoro-5H-imidazo[5, l indolyl)—
I2 l-hydroxyethyl)—N—
\ \\/z IO phenylcyclohexanecarboxamide
N—(4-(2-(6-fluoro-5H-imidazo[5, oindol-5—
/ 3 Ho J’Q yl)- l -hydroxyethyl)cyclohexyl)benzamide
l-(4-(2—(6—fluoro—5H-imidazo[5, l -a]isoindol—5—
yl)- l -hydroxyethyl)cyclohexyl)-3 -phenylurea
N—(4-(2-(6-fluoro-5H-imidazo[5, l-a]isoindol
yl)- l -hydroxyethyl)cyclohexyl)
phenylacetamide
and pharmaceutically acceptable salts thereof.
In another aspect, the present disclosure provides compounds and ceutical
compositions comprising the compounds according to any one of the ing aspects of the
invention or any embodiment thereof, together with a pharmaceutically acceptable excipient,
diluent, or carrier.
In another aspect, the invention provides s for treating indoleamine
2,3—dioxygenase (IDO) mediated immunosuppression in a subject in need thereof, comprising
administering an effective indoleamine 2,3-dioxygenase inhibiting amount of a compound or
a pharmaceutical composition according to any of the preceding aspects of the invention or
any ment f.
In one embodiment, the immunosuppression is associated with an infectious e,
or cancer.
In another embodiment, the suppression is associated with an infectious
disease and the infectious disease is a viral infection selected from the group consisting of:
hepatitis C virus (HCV), human papilloma virus (HPV), cytomegalovirus (CMV),
Epstein—Barr virus (EBV), poliovirus, varicella zoster virus, coxsackie virus, human
immunodeficiency virus (HIV).
In another embodiment, the immunosuppression is immunosupression associated with
HIV-1 infection.
In another embodiment, the immunosuppression is associated With a .
In an embodiment, the immunosuppression is tumor—specific immunosuppression
associated with cancer.
In another embodiment, the immunosuppression is associated with a cancer, wherein
the cancer is colon, pancreas, breast, prostate, lung, brain, ovary, cervix, testes, renal, head, or
neck cancer, or lymphoma, leukemia, or melanoma.
In another aspect, the invention provides the use of compounds described by any one
of the preceding aspects (and any embodiment thereof), as defined above, for the preparation
of a ment for the treatment of medical conditions that benefit from the inhibition of
enzymatic activity of indoleamine-2,3-dioxygenase. Medical conditions contemplated in this
aspect include all the conditions described herein.
In another aspect, the invention provides a use of compounds described by any one of
the preceding s (and any embodiment thereof), as defined above, for the preparation of
a medicament to ate T cell eration or to reverse an immunologic state of anergy or
immunosuppression.
In one embodiment, the anergy or immunosuppression is caused by sion of the
enzyme indoleamine—2,3 —dioxygenase.
In another aspect, the invention provides the use of compounds described by any one
of the preceding aspects (and any embodiment thereof), as defined above, for the preparation
of a ment for the treatment of immunosuppression ated with cancer, infectious
diseases, or viral infections.
In one embodiment, the ion provides the use of compounds described in to any
one of the ing aspects (and any embodiment thereof), as defined above, for the
preparation of a medicament for the treatment of tumor-specific immunosuppression
associated with cancer. Preferably, the cancer is cancer of the colon, pancreas, breast,
te, lung, brain, ovary, cervix, testes, renal, or head and neck, lymphoma, leukemia,
melanoma, and the like.
In another ment, the invention provides the use of compounds described in any
of the preceding aspects (and any embodiment thereof), as defined above, and embodiments
thereof as defined above, for the preparation of a medicament for the treatment of infectious
diseases where the ious disease is a viral infection. Preferably, the viral infection is
selected from the group consisting of: influenza, hepatitis C virus (HCV), human papilloma
virus (HPV), cytomegalovirus (CMV), Epstein—Barr virus (EBV), varicella zoster virus,
poliovirus, coxsackie virus, and human immunodeficiency virus (HIV). More preferably, the
viral infection is human immunodeficiency virus (HIV).
Definitions
Terms used herein may be preceded and/or followed by a single dash, “—”, or a double
dash, “=“, to indicate the bond order of the bond between the named substituent and its parent
; a single dash indicates a single bond and a double dash indicates a double bond or a
pair of single bonds in the case of a substituent. In the absence of a single or double
dash it is understood that a single bond is formed between the substituent and its parent
moiety; further, tuents are intended to be read “left to right” unless a dash indicates
otherwise. For example, C1-C6alkoxycarbonyloxy and -OC(O)C1-C6alkyl indicate the same
functionality; similarly arylalkyl, arylalkyl-, and —alkylaryl indicate the same functionality.
Further, certain terms herein may be used as both monovalent and divalent linking
radicals as would be ar to those skilled in the art, and by their presentation linking
between two other moieties. For example, an alkyl group can be both a monovalent radical
or divalent radical; in the latter case, it would be apparent to one d in the art that an
additional hydrogen atom is removed from a monovalent alkyl radical to provide a suitable
divalent .
The term “alkenyl” as used herein, means a straight or branched chain hydrocarbon
containing from 2 to 10 carbons, unless otherwise specified, and containing at least one
—carbon double bond. entative examples of alkenyl include, but are not d
to, ethenyl, 2—propenyl, 2—methylpropenyl, nyl, 4-pentenyl, 5-hexenyl, 2-heptenyl,
2-methyl-l-heptenyl, 3-decenyl, and 3,7-dimethylocta-2,6—dienyl.
The term “alkoxy” as used , means an alkyl group, as defined herein, appended
to the parent molecular moiety through an oxygen atom. Representative examples of alkoxy
include, but are not limited to, methoxy, ethoxy, y, 2-propoxy, butoxy, utoxy,
pentyloxy, and hexyloxy.
The term “alkyl” as used herein, means a straight or ed chain arbon
containing from 1 to 10 carbon atoms, unless otherwise specified. Representative examples of
alkyl include, but are not limited to, methyl, ethyl, n-propyl, iso-propyl, n-butyl, sec—butyl,
iso—butyl, utyl, n-pentyl, isopentyl, neopentyl, n-hexyl, 3-methylhexyl,
2,2-dimethylpentyl, 2,3-dimethylpentyl, n-heptyl, n-octyl, n-nonyl, and n-decyl. When an
“alkyl” group is a linking group between two other moieties, then it may also be a straight or
branched chain; examples include, but are not limited to -CH2-, -CH2CH2-,
—CH2CH2CHC(CH3)—, —CH2CH(CH2CH3)CH2—.
The term “aryl,” as used herein, means a phenyl (i.e., monocyclic aryl), or a bicyclic
ring system containing at least one phenyl ring or an aromatic bicyclic ring containing only
carbon atoms in the aromatic bicyclic ring . The bicyclic aryl can be azulenyl,
naphthyl, or a phenyl fused to a monocyclic cycloalkyl, a monocyclic cycloalkenyl, or a
monocyclic heterocyclyl. The ic aryl is attached to the parent molecular moiety through
any carbon atom contained within the phenyl portion of the bicyclic system, or any carbon
atom with the napthyl or azulenyl ring. The fused clic cycloalkyl or monocyclic
heterocyclyl portions of the bicyclic aryl are optionally substituted with one or two oxo
and/or thia groups. Representative examples of the bicyclic aryls e, but are not limited
to, azulenyl, naphthyl, dihydroinden-l-yl, dihydroinden-2—yl, dihydroindenyl,
dihydroindenyl, 2,3-dihydroindolyl, 2,3-dihydroindolyl, 2,3-dihydroindolyl,
2,3-dihydroindolyl, l-yl, inden-2—yl, indenyl, indenyl, dihydronaphthalenyl,
dihydronaphthalen-3 -yl, dihydronaphthalenyl, dihydronaphthalen- l -yl,
,6,7,8-tetrahydronaphthalen- l -yl, 5 ,6,7, 8-tetrahydronaphthalen-2 -yl,
2,3-dihydrobenzofuranyl, 2,3-dihydrobenzofuran-5 -yl, hydrobenzofuranyl,
2,3—dihydrobenzofuran—7—yl, benzo[d] [ l ,3]dioxol—4—yl, benzo[d][1,3]dioxol—5—yl,
omenonyl, 2H-chromenonyl, 2H-chromen-2—onyl,
2H-chromen-2—onyl, isoindoline- l ,3 -dionyl, isoindoline- 1,3 -dion-5 -yl, inden- l -onyl,
inden- l -onyl, inden- l -onyl, inden- l -onyl, 2,3 -dihydrobenzo[b] [ l ,4] dioxan-5 -yl,
2,3—dihydrobenzo[b] [ l ,4]dioxanyl, 2H-benzo[b] [ l zin3 nyl,
2H-benzo [b] [ l ,4] oxazin3 (4H)-onyl, 2H-benzo[b] [ l ,4] oxazin3 (4H)-onyl,
2H-benzo [b] [ l ,4] oxazin3 (4H)-onyl, benzo[d]oxazin-2(3H)-on-5 -yl,
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benzo[d]oxazin-2(3H)-onyl, d]oxazin-2(3H)—onyl,
benzo[d]oxazin-2(3H)-onyl, quinazolin-4(3 H)—onyl, quinazolin-4(3 H)-onyl,
quinazolin-4(3 H)—onyl, quinazolin-4(3 H)—onyl, quinoxalin-2(lH)-on-5 -yl,
quinoxalin-2(lH)-onyl, quinoxalin-2(lH)-onyl, quinoxalin-2(lH)-onyl,
benzo[d]thiazol-2(3 H)-onyl, benzo[d]thiazol-2(3H)—on-5 -yl,
benzo[d]thiazol-2(3H)-onyl, and, benzo[d]thiazol-2(3H)-onyl. In certain embodiments,
the bicyclic aryl is (i) naphthyl or (ii) a phenyl ring fused to either a 5 or 6 membered
monocyclic cycloalkyl, a 5 or 6 membered monocyclic cycloalkenyl, or a 5 or 6 membered
monocyclic cyclyl, wherein the fused cycloalkyl, cycloalkenyl, and heterocyclyl groups
are optionally substituted with one or two groups which are independently oxo or thia.
The term “arylalkyl,” “-alkylaryl,” and lkyl-” as used herein, means an aryl
group, as defined herein, appended to the parent lar moiety through an alkyl group, as
defined herein. Representative examples of kyl include, but are not limited to, benzyl,
ylethyl, 3-phenylpropyl, and 2-naphthylethyl.
The terms “cyano” and “nitrile” as used herein, mean a -CN group.
The term “cycloalkyl” as used herein, means a monocyclic or a bicyclic cycloalkyl
ring system. clic ring s are cyclic hydrocarbon groups containing from 3 to 8
carbon atoms, where such groups can be saturated or unsaturated, but not aromatic. In certain
embodiments, cycloalkyl groups are fully saturated. es of monocyclic cycloalkyls
include cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl,
cycloheptyl, and cyclooctyl. Bicyclic cycloalkyl ring systems are bridged monocyclic rings
or fused bicyclic rings. Bridged clic rings contain a monocyclic lkyl ring
where two non-adjacent carbon atoms of the monocyclic ring are linked by an alkylene
bridge of between one and three additional carbon atoms (i.e., a bridging group of the form
—(CH2)w—, where w is l, 2, or 3). Representative examples of bicyclic ring systems include,
but are not limited to, bicyclo[3.l.l]heptane, bicyclo[2.2.l]heptane, bicyclo[2.2.2]octane,
bicyclo[3.2.2]nonane, o[3.3.l]nonane, and bicyclo[4.2.l]nonane. Fused bicyclic
cycloalkyl ring systems contain a monocyclic cycloalkyl ring fused to either a phenyl, a
monocyclic cycloalkyl, a monocyclic cycloalkenyl, a monocyclic heterocyclyl, or a
monocyclic heteroaryl. The bridged or fused bicyclic cycloalkyl is ed to the parent
molecular moiety h any carbon atom ned within the monocyclic cycloalkyl ring.
Cycloalkyl groups are optionally substituted with one or two groups which are independently
oxo or thia. In certain embodiments, the fused bicyclic cycloalkyl is a 5 or 6 membered
monocyclic cycloalkyl ring fused to either a phenyl ring, a 5 or 6 membered monocyclic
cycloalkyl, a 5 or 6 membered monocyclic cycloalkenyl, a 5 or 6 membered monocyclic
heterocyclyl, or a 5 or 6 membered monocyclic heteroaryl, wherein the fused bicyclic
cycloalkyl is optionally substituted by one or two groups which are independently oxo or
thia.
“Cycloalkenyl” as used herein refers to a monocyclic or a bicyclic cycloalkenyl ring
. Monocyclic ring s are cyclic hydrocarbon groups containing from 3 to 8
carbon atoms, where such groups are unsaturated (i.e., containing at least one annular
carbon—carbon double bond), but not aromatic. es of monocyclic ring systems include
cyclopentenyl and cyclohexenyl. Bicyclic cycloalkenyl rings are bridged monocyclic rings or
a fused bicyclic rings. Bridged monocyclic rings contain a monocyclic cycloalkenyl ring
where two non-adjacent carbon atoms of the monocyclic ring are linked by an alkylene
bridge of between one and three additional carbon atoms (i.e., a bridging group of the form
—(CH2)W-, where w is l, 2, or 3). Representative examples of bicyclic cycloalkenyls include,
but are not limited to, norbornenyl and o[2.2.2]oct-2—enyl. Fused bicyclic lkenyl
ring systems contain a monocyclic cycloalkenyl ring fused to either a phenyl, a monocyclic
cycloalkyl, a monocyclic cycloalkenyl, a clic heterocyclyl, or a monocyclic
heteroaryl. The bridged or fused bicyclic cycloalkenyl is ed to the parent molecular
moiety h any carbon atom contained within the monocyclic cycloalkenyl ring.
Cycloalkenyl groups are optionally substituted with one or two groups which are
independently oxo or thia.
The term “halo” or en” as used herein, means -Cl, -Br, -I or -F.
The term “haloalkyl” as used herein, means at least one halogen, as defined herein,
appended to the parent molecular moiety through an alkyl group, as defined herein.
entative examples of haloalkyl include, but are not limited to, methyl,
2-fluoroethyl, trifluoromethyl, pentafluoroethyl, and 2—chlorofluoropentyl.
The term “heteroaryl,” as used herein, means a monocyclic heteroaryl or a bicyclic
ring system containing at least one heteroaromatic ring. The monocyclic heteroaryl can be a 5
or 6 membered ring. The 5 membered ring consists of two double bonds and one, two, three
or four nitrogen atoms and optionally one oxygen or sulfur atom. The 6 membered ring
consists of three double bonds and one, two, three or four nitrogen atoms. The 5 or 6
membered heteroaryl is connected to the parent lar moiety through any carbon atom
or any nitrogen atom contained within the heteroaryl. entative examples of monocyclic
heteroaryl e, but are not limited to, furyl, imidazolyl, isoxazolyl, isothiazolyl,
oxadiazolyl, oxazolyl, pyridinyl, pyridazinyl, pyrimidinyl, pyrazinyl, pyrazolyl, pyrrolyl,
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tetrazolyl, thiadiazolyl, thiazolyl, thienyl, triazolyl, and triazinyl. The bicyclic heteroaryl
consists of a monocyclic heteroaryl fused to a phenyl, a clic cycloalkyl, a monocyclic
cycloalkenyl, a monocyclic heterocyclyl, or a clic heteroaryl. The fused cycloalkyl
or heterocyclyl portion of the bicyclic heteroaryl group is optionally substituted with one or
two groups which are ndently oxo or thia. When the ic heteroaryl contains a
fused cycloalkyl, cycloalkenyl, or heterocyclyl ring, then the bicyclic heteroaryl group is
connected to the parent molecular moiety through any carbon or nitrogen atom contained
within the monocyclic heteroaryl portion of the bicyclic ring system. When the bicyclic
heteroaryl is a monocyclic heteroaryl fused to a phenyl ring or a monocyclic heteroaryl, then
the bicyclic heteroaryl group is connected to the parent molecular moiety through any carbon
atom or en atom within the bicyclic ring system. Representative examples of bicyclic
heteroaryl e, but are not d to, benzimidazolyl, benzofuranyl, hienyl,
benzoxadiazolyl, benzoxathiadiazolyl, benzothiazolyl, cinnolinyl, 5,6-dihydroquinolinyl,
,6—dihydroisoquinolin-l-yl, furopyridinyl, lyl, indolyl, isoquinolinyl, yridinyl,
quinolinyl, purinyl, 5,6,7,8-tetrahydroquinolinyl, 5,6,7,8-tetrahydroquinolinyl,
,6,7, 8—tetrahydroquinolinyl, 5,6,7, 8-tetrahydroisoquinolin- l -yl, thienopyridinyl,
7-tetrahydrobenzo[c] [ l ,2,5 ] oxadiazolyl, and
6,7-dihydrobenzo[c][l,2,5]oxadiazol—4(5H)—onyl. In n embodiments, the fused bicyclic
heteroaryl is a 5 or 6 membered monocyclic heteroaryl ring fused to either a phenyl ring, a 5
or 6 membered monocyclic cycloalkyl, a 5 or 6 membered monocyclic cycloalkenyl, a 5 or 6
membered monocyclic heterocyclyl, or a 5 or 6 membered monocyclic heteroaryl, wherein
the fused cycloalkyl, cycloalkenyl, and heterocyclyl groups are optionally substituted with
one or two groups which are independently oxo or thia.
The term “heteroarylalkyl” and “-alkylheteroaryl” as used herein, means a heteroaryl,
as defined herein, appended to the parent lar moiety through an alkyl group, as
defined herein. Representative examples of heteroarylalkyl include, but are not limited to,
furylmethyl, lH-imidazol-2—ylmethyl, lH-imidazolylmethyl, l-(pyridinyl)ethyl,
pyridin-3 -ylmethyl, pyridinylmethyl, pyrimidinylmethyl, 2—(pyrimidinyl)propyl,
thienylmethyl, and 3-ylmethyl.
The term “heterocyclyl” as used herein, means a monocyclic heterocycle or a bicyclic
heterocycle. The monocyclic heterocycle is a 3, 4, 5, 6 or 7 membered ring containing at
least one heteroatom independently selected from the group consisting of O, N, and S where
the ring is saturated or unsaturated, but not aromatic. The 3 or 4 membered ring contains 1
heteroatom selected from the group consisting of O, N and S. The 5 membered ring can
contain zero or one double bond and one, two or three heteroatoms selected from the group
consisting of O, N and S. The 6 or 7 membered ring contains zero, one or two double bonds
and one, two or three heteroatoms ed from the group consisting of O, N and S. The
monocyclic heterocycle is connected to the parent molecular moiety through any carbon atom
or any nitrogen atom contained within the monocyclic heterocycle. Representative examples
of monocyclic heterocycle include, but are not d to, azetidinyl, azepanyl, aziridinyl,
diazepanyl, l,3—dioxanyl, l,3—dioxolanyl, l,3—dithiolanyl, l,3—dithianyl, imidazolinyl,
imidazolidinyl, isothiazolinyl, isothiazolidinyl, isoxazolinyl, isoxazolidinyl, morpholinyl,
oxadiazolinyl, oxadiazolidinyl, oxazolinyl, oxazolidinyl, piperazinyl, piperidinyl, pyranyl,
pyrazolinyl, pyrazolidinyl, pyrrolinyl, idinyl, tetrahydrofuranyl, tetrahydrothienyl,
thiadiazolinyl, thiadiazolidinyl, thiazolinyl, thiazolidinyl, thiomorpholinyl,
l,l-dioxidothiomorpholinyl (thiomorpholine sulfone), thiopyranyl, and trithianyl. The
ic cycle is a monocyclic heterocycle fused to either a phenyl, a monocyclic
cycloalkyl, a monocyclic lkenyl, a monocyclic cycle, or a clic heteroaryl.
The bicyclic heterocycle is connected to the parent molecular moiety through any carbon
atom or any nitrogen atom contained within the monocyclic heterocycle portion of the
ic ring system. Representative examples of bicyclic heterocyclyls include, but are not
limited to, 2,3-dihydrobenzofuranyl, 2,3-dihydrobenzofuranyl, indolin-l-yl,
indolinyl, indolinyl, 2,3-dihydrobenzothien-2—yl, decahydroquinolinyl,
decahydroisoquinolinyl, octahydro-lH-indolyl, and octahydrobenzofuranyl. Heterocyclyl
groups are optionally substituted with one or two groups which are independently oxo or thia.
In certain embodiments, the bicyclic heterocyclyl is a 5 or 6 membered monocyclic
heterocyclyl ring fused to phenyl ring, a 5 or 6 ed monocyclic cycloalkyl, a 5 or 6
membered monocyclic cycloalkenyl, a 5 or 6 membered monocyclic heterocyclyl, or a 5 or 6
membered clic heteroaryl, wherein the bicyclic cyclyl is optionally substituted
by one or two groups which are independently oxo or thia.
The term “hydroxy” as used herein, means an —OH group.
The term “nitro” as used herein, means a —NOz group.
The term “oxo” as used herein means a =O group.
The term “saturated” as used herein means the referenced chemical structure does not
contain any multiple carbon-carbon bonds. For example, a saturated cycloalkyl group as
d herein includes cyclohexyl, cyclopropyl, and the like.
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The term “spiro” as used herein refers to a cyclic moiety formed by the subsituted
atom and two available substitutable postions on that same atom. For example, moiety such
(TR where R is a spiro—cycloalkyl= group includes compounds such as
7 7
where the spiro—cyclopentyl group is the R group attached to the parent cyclohexyl ring by
two single bonds. Similarly, where R is a spiro—heterocyclyl group, such compounds include
Go03 where the spiro-l,3-dioxolanyl ring is the R group attached to the parent
cyclohexyl ring by two single bonds.
The term “thia” as used herein means a =S group.
The term “unsaturated” as used herein means the referenced chemical structure
contains at least one multiple carbon-carbon bond, but is not aromatic. For example, a
unsaturated cycloalkyl group as defined herein includes cyclohexenyl, cyclopentenyl,
cyclohexadienyl, and the like.
As used herein, the term “cell” is meant to refer to a cell that is in vitro, ex vivo or in
vivo. In some embodiments, an ex vivo cell can be part of a tissue sample excised from an
organism such as a mammal. In some embodiments, an in vitro cell can be a cell in a cell
culture. In some embodiments, an in vivo cell is a cell living in an organism such as a
mammal.
As used , the term “contacting” refers to the bringing together of indicated
moieties in an in vitro system or an in vivo system. For example, “contacting” the IDO
enzyme with a compound includes the administration of a compound described herein to an
individual or patient, such as a human, having IDO, as well as, for example, introducing a
compound into a sample containing a cellular or purified ation containing the IDO
enzyme.
As used herein, the term “individual” or “patient,” used interchangeably, refers to any
, including mammals, preferably mice, rats, other rodents, rabbits, dogs, cats, swine,
cattle, sheep, horses, or es, and most preferably .
As used herein, the phrase “therapeutically ive ” refers to the amount of
active compound or ceutical agent that elicits the biological or medicinal response that
2012/033245
is being sought in a tissue, system, animal, individual or human by a researcher, veterinarian,
medical doctor or other clinician.
In n embodiments, a therapeutically effective amount can be an amount suitable
for (l) preventing the disease; for example, preventing a disease, condition or disorder in an
individual who may be predisposed to the disease, condition or disorder but does not yet
experience or display the ogy or symptomatology of the disease;
(2) inhibiting the disease; for example, inhibiting a disease, condition or disorder in
an individual who is experiencing or displaying the pathology or matology of the
e, condition or disorder; or
(3) ameliorating the disease; for example, ameliorating a disease, condition or
disorder in an individual who is experiencing or displaying the pathology or symptomatology
of the disease, condition or disorder (i.e., reversing the pathology and/or symptomatology)
such as decreasing the severity of disease.
As used here, the terms ment” and “treating” means (i) rating the
referenced disease state, for example, ameliorating a disease, condition or disorder in an
individual who is experiencing or displaying the pathology or symptomatology of the disease,
condition or disorder (i.e., reversing or improving the pathology and/or symptomatology)
such as decreasing the severity of disease; or (ii) eliciting the nced biological effect
(e.g., IDO modulation or tryptophan degradation tion).
Manifestation of amelioration of a e condition with underlying IDO-mediated
immunosuppression may require the concomitant or sequential administration of additional
therapeutic agents, such as antineoplastic agents in the case of cancer, or antiretroviral agents
in the case of viral diseases. For example, administration of IDO inhibitors for the treatment
of cancer does not always produce a direct antitumor effect when used as a single agent.
However, when combined with chemotherapeutic drugs (antineoplastic) the antitumor effect
observed is higher than the sum of effects of each agent alone.
As used herein, the terms “catalytic pocket”, ytic site”, “active site” collectively
and indistinctly refer to a region of the enzyme that contains amino acid residues responsible
for the substrate binding (charge, hobicity, steric hindrance) and tic amino acid
residues which act as proton donors or ors or are responsible for binding a cofactor and
participate in the catalysis of a chemical reaction.
As used herein, the phrase “pharmaceutically acceptable salt” refers to both
pharmaceutically acceptable acid and base addition salts and es. Such pharmaceutically
acceptable salts include salts of acids such as hydrochloric, phosphoric, hydrobromic,
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sulfuric, sulf1nic, formic, esulfonic, methanesulfonic, nitric, benzoic, citric, tartaric,
maleic, hydroiodic, alkanoic such as acetic, HOOC—(CH2)n—COOH Where n is 0—4, and the
like. Non—toxic pharmaceutical base addition salts include salts of bases such as sodium,
potassium, calcium, ammonium, and the like. Those skilled in the art will recognize a wide
variety of non-toxic pharmaceutically acceptable addition salts.
Methods of Use
The compounds and pharmaceutical compositions described herein can modulate
activity of the enzyme indoleamine-2,3-dioxygenase (IDO). The term “modulate” is meant to
refer to an ability to decrease activity of an enzyme or receptor. ingly, compounds
bed herein can be used in methods of ting IDO by contacting the enzyme with
any one or more of the compounds or compositions described herein. In some embodiments,
the compounds described herein can act as inhibitors of IDO. In further embodiments, the
compounds described herein can be used to modulate activity of IDO in cell or in an
individual in need of modulation of the enzyme by administering a ting (e.g.,
inhibiting) amount of a compound described herein.
Further provided are s of inhibiting the degradation of tryptophan and
preventing the production of N—formylkynurenine in a system containing cells expressing
IDO such as a tissue, living organism, or cell culture. In some embodiments methods of
altering (e.g., increasing) ellular tryptophan levels in a mammal comprise administering
an effective amount of a compound or pharmaceutical composition provided herein.
Methods of measuring tryptophan levels and tryptophan degradation are routine in the art.
Further provided are methods of inhibiting immunosuppression such as IDO—mediated
immunosuppression in a patient by administering to the patient an effective amount of a
compound or composition recited herein. IDO—mediated immunosuppression has been
associated with, for e, cancers, tumor growth, metastasis, infectious es (e.g.,
viral infection), viral ation, etc.
Further provided are methods for treating tumor—specific immunosuppression
associated with cancer in a patient by administering to the patient an effective amount of a
nd or composition recited herein. Example tumor—specific immunosuppression
associated with s treatable by the methods herein e immunosuppression
associated with cancer of the colon, pancreas, breast, te, lung, brain, ovary, cervix,
testes, renal, head and neck, lymphoma, leukemia, melanoma, and the like.
For example, a patient undergoing or having completed a course of chemotherapy
and/or radiation therapy for the treatment of a disease state, such as a cancer, can benefit from
administering to the patient a therapeutically ive amount of a compound or composition
recited herein for inhibiting immunosuppression resulting from the disease state and/or
ent thereof.
Further provided are methods for treating immunosupression associated with an
infectious disease, e.g., HIV-1 infection, in a patient by administering to the patient an
effective amount of a compound or composition recited herein.
For e, IDO—mediated suppression associated with viral infection, is
associated with a viral infection selected from the group consisting of: influenza, hepatitis C
virus (HCV), human papilloma virus (HPV), cytomegalovirus (CMV), Epstein-Barr virus
(EBV), poliovirus, lla zoster virus, coxsackie virus, human immunodeficiency virus
(HIV).
Further provided are methods of treating diseases associated with activity or
expression, including al activity and/or overexpression, of IDO in an individual (e. g.,
t) by administering to the individual in need of such treatment a eutically
ive amount or dose of a compound described herein or a pharmaceutical composition
f. Example diseases can include any disease, er or condition that is directly or
indirectly linked to expression or activity of the IDO enzyme, such as over expression or
al activity. An IDO-associated disease can also include any disease, disorder or
condition that can be prevented, ameliorated, or cured by modulating enzyme activity.
Examples of IDO—associated diseases include cancer, viral infection such as HIV
infection, depression, neurodegenerative disorders such as Alzheimer's e and
Huntington's disease, trauma, age-related cataracts, organ transplantation (e.g., organ
transplant rejection), and autoimmune diseases including asthma, rheumatoid arthritis,
multiple sclerosis, inflammatory bowel disease, psoriasis and systemic lupus
erythematosusor. Example cancers ble by the methods herein include cancer of the
colon, pancreas, breast, prostate, lung, brain, ovary, cervix, , renal, head and neck,
lymphoma, leukemia, melanoma, and the like.
Combination Therapy
One or more additional pharmaceutical agents for treatment methods such as, for
example, anti-viral agents, chemotherapeutics or other anti-cancer agents, immune enhancers,
immunosuppressants, radiation, anti-tumor and anti-viral vaccines, cytokine therapy (e.g.,
1L2, GM—CSF, eta), and/or ne kinase inhibitors can be used in ation with the
nds and pharmaceutical compositions described herein for treatment of
IDO—associated diseases, disorders or conditions (as noted above) or for enhancing the
effectiveness of the treatment of a disease state or condition, such as cancer. The agents can
be combined with the present compounds in a single dosage form, or the agents can be
administered aneously or sequentially as separate dosage forms.
Therapeutic agents that constitute the standard of care for a particular cancer type
or infectious disease are expected to benefit when ed with IDO inhibitors of the
present invention. For example, for the case of tumors, is it preferable that the tumor is
sensitive to the xic effects of the chemotherapeutic agent in order to stimulate the
release of ns that will eventually mediate an immune response that will be enhanced by
addition of IDO inhibitors to the combination treatment. A person of skill in the art will know
how to select such chemotherapeutic agent based on the clinical characteristics and known
sensititivity of each tumor to different antineoplastic agents.
Suitable antiviral agents contemplated for use in combination with the compounds
described herein can comprise nucleoside and nucleotide reverse transcriptase inhibitors
(NRTIs), non—nucleoside reverse transcriptase inhibitors (NNRTIs), protease inhibitors and
other antiviral drugs.
Example suitable NRTIs include zidovudine (AZT); didanosine (ddl); zalcitabine
(ddC); stavudine (d4T); lamivudine (3TC); abacavir (1592U89); ir dipivoxil
[bis(POM)-PMEA]; lobucavir (EMS-180194); BCH-10652; emitricitabine [(-)-FTC];
beta—L—FD4 (also called beta—L—D4C and named —2',3'—dicleoxy—5—fluoro—cytidene);
DAPD, ((-)-beta-D-2,6,-diamino-purine dioxolane); and lodenosine (FddA). Typical suitable
NNRTIs include nevirapine (BI-RG-587); delaviradine (BHAP, U-90152); efavirenz
(DMP—266); PNU— 14272 1; AG— 1549; MKC—442
(1 xy-methyl)—5-(1-methylethyl)(phenylmethyl)-(2,4(1H,3 H)—pyrimid- i nedione);
and (+)—calanolide A (NSC—675451) and B. Typical suitable protease tors include
saquinavir (Ro 31-8959); ritonavir (ABT-538); indinavir (MK-639); vir (AG-1343);
amprenavir (141W94); lasinavir (EMS-234475); DMP-450; EMS-2322623; ABT-378; and
AG-1549. Other antiviral agents include hydroxyurea, ribavirin, IL-2, IL-12, pentafuside and
Yissum Project No. 11607.
le chemotherapeutic or other anti-cancer agents include, for e, alkylating
agents (including, without limitation, nitrogen mustards, ethylenimine tives, alkyl
sulfonates, oureas and triazenes) such as uracil mustard, chlormethine,
cyclophosphamide (CytoxanTM), ifosfamide, melphalan, mbucil, pipobroman,
triethylene-melamine, triethylenethiophosphoramine, busulfan, tine, lomustine,
streptozocin, dacarbazine, and temozolomide.
Suitable chemotherapeutic or other anti-cancer agents include, for example,
antimetabolites (including, t limitation, folic acid antagonists, pyrimidine analogs,
purine analogs and adenosine deaminase inhibitors) such as methotrexate, 5-fluorouracil,
floxuridine, cytarabine, 6-mercaptopurine, 6-thioguanine, bine phosphate,
pentostatine, and gemcitabine.
Suitable herapeutic or other anti-cancer agents further include, for example,
certain natural products and their derivatives (for example, vinca alkaloids, antitumor
antibiotics, enzymes, lymphokines and ophyllotoxins) such as vinblastine, vincristine,
vindesine, bleomycin, dactinomycin, daunorubicin, bicin, icin, idarubicin,
ara-C, paclitaxel (TaxolTM), docetaxel, mithramycin, deoxyco-formycin, mitomycin-C,
L—asparaginase, interferons (especially IFN—a), etoposide, and teniposide.
Other cytotoxic agents include navelbene, CPT-ll, azole, letrazole,
capecitabine, reloxafine, cyclophosphamide, ifosamide, and droloxafine.
Also suitable are cytotoxic agents such as epidophyllotoxin; an oplastic
enzyme; a topoisomerase inhibitor; bazine; mitoxantrone; platinum coordination
complexes such as cis-platin and carboplatin; biological response modifiers; growth
inhibitors; antihormonal therapeutic agents; orin; tegafur; and haematopoietic growth
factors.
Other anti-cancer agent(s) include antibody therapeutics such as trastuzumab
(Herceptin), antibodies to costimulatory les such as CTLA-4,4-1BB and PD-l, or
antibodies to cytokines (IL—10, TGF—B, eta).
Other anti-cancer agents also include those that block immune cell migration such as
nists to chemokine receptors, including CCR2, CCR4 and CCR6.
Other ancer agents also include those that augment the immune system such as
adjuvants or adoptive T cell transfer.
Anti—cancer vaccines include dendritic cells, synthetic peptides, DNA vaccines and
inant viruses.
Methods for the safe and effective administration of most of these chemotherapeutic
agents are known to those skilled in the art. In on, their administration is described in
the standard literature. For example, the administration of many of the chemotherapeutic
agents is described in the “Physicians' Desk Reference” (PDR, e.g., 1996 edition, Medical
Economics Company, Montvale, N.J.), the disclosure of which is incorporated herein by
reference as if set forth in its ty.
Pharmaceutical Formulations and Dosage Forms
The pharmaceutical compositions described herein generally comprise a combination
of a compound described herein and a ceutically acceptable carrier, t, or
excipient. Such compositions are substantially free of non-pharmaceutically acceptable
components, i.e., contain amounts of non-pharmaceutically acceptable components lower
than permitted by US regulatory requirements at the time of filing this application. In some
embodiments of this aspect, if the nd is dissolved or suspended in water, the
composition further optionally ses an additional pharmaceutically acceptable carrier,
diluent, or excipient. In other embodiments, the pharmaceutical compositions described
herein are solid pharmaceutical compositions (e.g., tablet, capsules, eta).
These itions can be prepared in a manner well known in the pharmaceutical
art, and can be administered by a variety of routes, depending upon whether local or systemic
treatment is desired and upon the area to be treated. Administration may be topical (including
ophthalmic and to mucous membranes including intranasal, vaginal and rectal delivery),
ary (e. g., by inhalation or insufflation of powders or aerosols, including by nebulizer;
intratracheal, asal, epidermal and transdermal), ocular, oral or parenteral. Methods for
ocular delivery can include topical administration (eye drops), subconjunctival, periocular or
itreal injection or introduction by balloon catheter or ophthalmic inserts surgically
placed in the ctival sac. eral administration includes intravenous, intraarterial,
subcutaneous, intraperitoneal or intramuscular injection or infusion; or intracranial, e.g.,
intrathecal or intraventricular, administration. Parenteral administration can be in the form of
a single bolus dose, or may be, for example, by a continuous perfusion pump. Pharmaceutical
compositions and formulations for topical stration may include transdermal s,
ointments, lotions, creams, gels, drops, suppositories, sprays, liquids and powders.
Conventional ceutical carriers, aqueous, powder or oily bases, thickeners and the like
may be necessary or desirable.
Also, pharmaceutical compositions can contain, as the active ingredient, one or more
of the compounds described herein above in combination with one or more pharmaceutically
acceptable carriers. In making the compositions described herein, the active ient is
typically mixed with an excipient, diluted by an excipient or enclosed within such a carrier in
the form of, for example, a capsule, sachet, paper, or other container. When the excipient
serves as a diluent, it can be a solid, olid, or liquid material, which acts as a vehicle,
carrier or medium for the active ingredient. Thus, the compositions can be in the form of
tablets, pills, powders, lozenges, sachets, cachets, elixirs, suspensions, emulsions, solutions,
syrups, aerosols (as a solid or in a liquid ), ointments containing, for example, up to
% by weight of the active compound, soft and hard gelatin es, suppositories, sterile
inj ectable solutions, and sterile packaged powders.
In preparing a formulation, the active nd can be milled to provide the
appropriate particle size prior to combining with the other ingredients. If the active compound
is substantially insoluble, it can be milled to a particle size of less than 200 mesh. If the active
compound is substantially water soluble, the particle size can be adjusted by milling to
provide a substantially uniform distribution in the formulation, e. g. about 40 mesh.
Some examples of suitable ents include lactose, dextrose, sucrose, sorbitol,
mannitol, es, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium
te, microcrystalline cellulose, polyvinylpyrrolidone, cellulose, water, syrup, and methyl
cellulose. The ations can additionally e: lubricating agents such as talc,
magnesium te, and mineral oil; wetting agents; emulsifying and suspending agents;
preserving agents such as methyl- and propylhydroxy-benzoates; sweetening agents; and
flavoring agents. The compositions described herein can be formulated so as to provide
quick, sustained or delayed release of the active ient after administration to the patient
by ing procedures known in the art.
The compositions can be formulated in a unit dosage form, each dosage containing
from about 5 to about 100 mg, more usually about 10 to about 30 mg, of the active
ingredient. The term “unit dosage forms” refers to physically discrete units suitable as unitary
dosages for human subjects and other mammals, each unit containing a predetermined
quantity of active material calculated to produce the desired therapeutic effect, in association
with a suitable pharmaceutical excipient.
The active compound can be effective over a wide dosage range and is generally
administered in a pharmaceutically effective amount. It will be understood, however, that the
amount of the compound actually administered will y be determined by a physician,
according to the relevant circumstances, including the condition to be treated, the chosen
route of administration, the actual compound administered, the age, weight, and se of
the individual patient, the severity of the patient's symptoms, and the like.
For preparing solid compositions such as tablets, the pal active ingredient is
mixed with a pharmaceutical excipient to form a solid preformulation composition containing
a homogeneous mixture of a compound described herein. When referring to these
preformulation compositions as homogeneous, the active ingredient is typically dispersed
evenly throughout the composition so that the composition can be readily subdivided into
y effective unit dosage forms such as tablets, pills and capsules. This solid
preformulation is then subdivided into unit dosage forms of the type described above
containing from, for example, 0.1 to about 500 mg of the active ingredient of a compound
described herein.
The tablets or pills can be coated or otherwise compounded to provide a dosage form
affording the advantage of prolonged action. For example, the tablet or pill can comprise an
inner dosage and an outer dosage component, the latter being in the form of an envelope over
the . The two components can be separated by an enteric layer which serves to resist
disintegration in the stomach and permit the inner component to pass intact into the
um or to be delayed in release. A y of als can be used for such enteric
layers or coatings, such materials ing a number of polymeric acids and mixtures of
polymeric acids with such als as shellac, cetyl alcohol, and cellulose acetate.
The liquid forms in which the nds and compositions can be incorporated for
administration orally or by injection include aqueous solutions, suitably flavored syrups,
aqueous or oil suspensions, and flavored emulsions with edible oils such as cottonseed oil,
sesame oil, coconut oil, or peanut oil, as well as elixirs and similar pharmaceutical vehicles.
Compositions for inhalation or insufflation include solutions and suspensions in
pharmaceutically acceptable, aqueous or organic solvents, or mixtures thereof, and powders.
The liquid or solid compositions may contain suitable pharmaceutically acceptable excipients
as described supra. In some embodiments, the compositions are administered by the oral or
nasal respiratory route for local or systemic effect. Compositions in can be zed by use
of inert gases. zed solutions may be breathed directly from the nebulizing device or the
nebulizing device can be attached to a face masks tent, or intermittent ve pressure
breathing machine. Solution, suspension, or powder compositions can be administered orally
or nasally from devices which deliver the formulation in an appropriate .
The amount of compound or composition administered to a patient will vary
depending upon what is being administered, the e of the administration, such as
laxis or therapy, the state of the patient, the manner of administration, and the like. In
therapeutic ations, compositions can be administered to a patient already suffering from
a disease in an amount sufficient to cure or at least partially arrest the symptoms of the
disease and its complications. Effective doses will depend on the disease condition being
WO 42237
treated as well as by the judgment of the attending clinician depending upon factors such as
the severity of the e, the age, weight and general condition of the patient, and the like.
The compositions stered to a patient can be in the form of ceutical
compositions described above. These compositions can be ized by conventional
sterilization techniques, or may be sterile filtered. Aqueous solutions can be packaged for use
as is, or lyophilized, the lyophilized preparation being combined with a sterile aqueous carrier
prior to administration. The pH of the compound preparations typically will be between 3 and
11, more preferably from 5 to 9 and most ably from 7 to 8. It will be understood that
use of certain of the foregoing excipients, carriers, or stabilizers will result in the formation of
pharmaceutical salts.
The therapeutic dosage of the compounds can vary according to, for example, the
particular use for which the treatment is made, the manner of administration of the
compound, the health and condition of the t, and the judgment of the prescribing
physician. The proportion or tration of a compound described herein in a
pharmaceutical composition can vary depending upon a number of factors including dosage,
chemical characteristics (e.g., hydrophobicity), and the route of administration. For example,
the compounds described herein can be provided in an aqueous physiological buffer solution
containing about 0.1 to about 10% w/v of the compound for parenteral administration. Some
typical dose ranges are from about 1 ug/kg to about 1 g/kg of body weight per day. In some
embodiments, the dose range is from about 0.01 mg/kg to about 100 mg/kg of body weight
per day. The dosage is likely to depend on such variables as the type and extent of
progression of the disease or disorder, the overall health status of the particular patient, the
ve biological cy of the compound selected, formulation of the excipient, and its
route of administration. Effective doses can be extrapolated from dose—response curves
derived from in vitro or animal model test systems.
The compounds described herein can also be formulated in combination with one or
more additional active ingredients which can include any pharmaceutical agent such as
anti-viral , es, antibodies, immune enhancers, immune ssants,
nflammatory agents and the like.
Labeled Compounds and Assay Methods
Another aspect relates to fluorescent dye, spin label, heavy metal or radio-labeled
derivatives of the compounds described herein that would be useful not only in imaging but
also in assays, both in vitro and in viva, for localizing and quantitating the IDO enzyme in
tissue samples, including human, and for identifying IDO enzyme ligands by inhibition
binding of a labeled compound. Accordingly, further ed are IDO enzyme assays that
n such labeled compounds.
Further provided are ically—labeled compounds of the nds described
herein. An “isotopically” or “radio—labeled” nd is a compound described herein where
one or more atoms are ed or substituted by an atom having an atomic mass or mass
number different from the atomic mass or mass number typically found in nature (i.e.,
naturally occurring). Suitable radionuclides that may be include but are not limited to 2H
(also written as D for deuterium), 3H (also written as T for tritium), 11C, 13C, 14C, 13N, 15N,
15O, 17O, 18O, 18F, 35S, 36Cl, 82Br, 75Br, 76Br, 77Br, 123I, 124I, 1251 and 131I. The radionuclide that
is incorporated in the t radio-labeled compounds will depend on the specific application
of that radio-labeled compound. For example, for in vitro IDO enzyme labeling and
competition , compounds that incorporate 3H, 14C, 82Br, 1251, 131I, 35S or will generally
be most useful. For radio-imaging applications 11C, 18F, 1251, 123I, 1241, 1311, 75Br, 76Br or 77Br
will lly be most useful.
It is understood that a “radio-labeled” or “labeled compound” is a compound that has
incorporated at least one radionuclide. In some embodiments the radionuclide is selected
from the group consisting of 3H, 14C, 1251, 35S and 82Br.
Synthetic methods for incorporating radio-isotopes into organic compounds are
applicable to compounds described herein and are well known in the art.
A radio—labeled compound described herein can be used in a screening assay to
fy/evaluate compounds. In general terms, a newly synthesized or identifled compound
(i.e., test compound) can be evaluated for its ability to reduce binding of the radio—labeled
compound described herein to the IDO enzyme. ingly, the ability of a test compound
to compete with the radio-labeled compound for binding to the IDO enzyme directly
correlates to its binding affinity.
Also included are pharmaceutical kits useful, for e, in the treatment or
prevention of IDO—associated diseases or disorders, obesity, diabetes and other diseases
referred to herein which include one or more containers containing a pharmaceutical
composition comprising a therapeutically effective amount of a compound described herein.
Such kits can further e, if desired, one or more of various conventional pharmaceutical
kit ents, such as, for example, containers with one or more pharmaceutically
acceptable carriers, additional containers, etc, as will be readily apparent to those skilled in
the art. ctions, either as s or as labels, indicating quantities of the ents to
be administered, guidelines for administration, and/or guidelines for mixing the components,
can also be included in the kit.
The following examples are d for illustrative es, and are not ed to
limit the disclosure in any manner. Those of skill in the art will readily recognize a variety of
noncritical parameters which can be changed or ed to yield essentially the same results.
The example compounds below were found to be inhibitors of IDO according to one or more
of the assays described herein.
EXAMPLES
All reagents and solvents were purchased from commercial s. All commercial reagents
and solvents were used as received without further purification. The reactions were
monitored using analytical thin layer chromatography (TLC) with 0.25 mm EM Science
silica gel plates (60F-254). The developed TLC plates were visualized by 811011 wave UV
light (254 nm) or immersion in potassium permanganate solution followed by heating on a
hot plate. Flash chromatography was performed with Selecto Scientific silica gel, 32—63 um
particle sizes. All reactions were performed in flame or oven—dried glassware under a
nitrogen atmosphere. All reactions were d magnetically at ambient temperature unless
otherwise indicated. 1H NMR spectra were obtained with a Bruker DRX400, Varian VXR400
or VXR300. 1H NMR spectra were ed in parts per million (5) relative to TMS (0.0),
DMSO—d6 (2.50) or CD3OD (4.80) as an internal nce. All 1H NMR spectra were taken
in CDCl3 unless otherwise indicated. The following starting materials were prepared
according to their literature procedures: (E)-ethyl 3-(2-iodophenyl)acrylate . Comm.
2007, 37, 2989—2994), 2—chloro—6—iodobenzaldehyde (J. Agric. Food Chem. 2008, 56, 5247—
5253), 2—iodo—3—methoxybenzaldehyde (Chem. — Eur. J., 2004, 10, 5233—5242), dimethyl (2—
(cyclohex-l-en-l-yl)oxoethyl)phosphonate (Phosphorus, Sulfur Silicon Relat. Elem.,
1999, 155, 67—80), dimethyl (2—cyclohexyl—2—oxo)ethylphosphonate (Patent: U85807892 A1,
1998), ethyl l,4—dioxaspiro[4.5]decane—8—carboxylate (Patent: U82008/306084 A1, 2008),
(trans)-ethyl 4-((tert-butyldimethylsilyl)oxy)cyclohexanecarboxylate
(Patent: US2006/25383 A1, 2006), ethyl spiro[2.5]octane—6—carboxylate (Bioorg. Med.
Chem. Lett. 2008, 18, 5280—5284), ethyl 4-(cyclopropylmethylene)cyclohexanecarboxylate
(Patent: US4584013 A1, 1986),
The aforementioned compounds are assigned compound identification numbers 86—
91 and 113-115 respectively for future nce in this patent. (4.80) as an internal reference.
All spectra are recorded in CDCl3 unless otherwise indicated.
A variety of methods used in this patent to synthesize intermediate A are outlined
below in Scheme 1. Palladium—catalyzed Suzuki cross—coupling of 4—iodo—l—trityl— 1H-
imidazole with boronic acids gives rise to 2-(l-trityl- dazolyl)benzaldehydes.
The resulting 2—(l-trityl-lH-imidazolyl)benzaldehydes are affected by aldol
condensations or Homer—Wadsworth reactions to afford intermediate A. Alternatively, the
synthesis of intermediate A can be ed by allowing 2-iodobenzaldehydes to react with
substituted methyl ketones in the presence of a base to afford 3-(2—iodophenyl)propen-l-
ones. Negishi cross—coupling of the resulting 3-(2-iodophenyl)propen-l-ones with 4—
iodo-l-trityl-lH-imidazole, also leads to ediate A. Subjecting intermediate A to trityl
ection conditions gives rise to 2—(5H-imidazo[5,l-a]isoindol—5—yl)ethanone B, which
may be reduced to 2—(5H-imidazo[5, l—a]isoindol—5—yl)ethanol C (Scheme 2).
Scheme 1. sis of (E)—3-(2—(l-trityl- lH—imidazolyl)phenyl)propen-l-ones
(Intermediate A)
| B(OH)2 \\ o
Z~N CHO |
\ cat Pd /
3 + | . CHO R1i;}3\,OEt
_, OEt
[ll R2// /
Trt N o
NJ J\
Trt’ R1
[Trt
R2 R2 N
I R11 |\\ | IN»
/ —> / / R1
I ('3 O
base Negishi ooupling
Scheme 2. Synthesis of 2-(5H-imidazo[5,l-a]isoindolyl)ethanones and Their
Corresponding 2-(5H-imidazo[5, l -a]isoindol-5 -yl)ethanols
R\\2
I R1
R|\\2 \ /
/ N N HO
\ \> / x)
N N
A B c
Example 1 General ure for the Synthesis of 3—(2—Iodophenyl)prop—2—en—l—ones by
Aldol Condensation
R2 R2
O \ NaOMe \
R1JJ\ + |\/ —> WW
I (I) I o
To a solution of the appropriate commercially available benzaldehyde or 87 (4.31
mmol) in ous MeOH (15 mL) at rt was added NaOMe (4.31 mmol, 0.5 M in MeOH)
and the yellow solution was allowed to stir for 5 min. The appropriate ketone (4.31 mmol)
was added dropwise as a solution in MeOH (3 mL). After stirring overnight, the solvent was
removed under reduced pressure and the crude was d with satd. NH4Cl (20 mL). The
aqueous layer was extracted with CHzClz (3 x 20 mL) and the combined c extracts
were dried (MgSO4) and the solvent distilled off under reduced pressure to afford a crude
residue. The crude product was purified by silica flash chromatography to afford the
following compounds.
# nd Name Yield (%)
\ (ID—3—(2—chloro—6-iodophenyl)—l—
cyclohexylprop—2—en— 1 —one
1H NMR 1.22—1.45 (m, 5 H), 1.70—174 (m, 1H), 1.79—1.85 (m, 2H), 1.93-1.99 (m, 2H),
2.61-2.65 (m, 1H), 6.67 (d, 1H, J= 16 Hz), 6.93 (t, 1H, J: 8 Hz), 7.42 (d, 1H, J: 8 Hz),
7.48 (d, 1H, J= 16 Hz), 7.82 (d, 1H, J: 8 Hz)
(ID—3 —(2—iodophenyl)- l -(3 -nitrophenyl)prop-
2—en—l—one
1H NMR 7.10—7.16 (m, 1H), 7.34 (d, 1H, J: 15.6 Hz), .46 (m, 1H), 7.71—7.76 (m,
2H), 7.94—7.97 (m, 1H), 8.05 (d, 1H, J: 15.6 Hz), 8.34—8.48 (m, 2H), 8.81 (s, 1H)
Example 2 General Procedure for the Synthesis of 2-(5H-imidazo[5,l-a]isoindol—5—
yl)ethanones by Palladium-Catalyzed i Cross—Coupling of Aryl s
l and 2 with 4-Iodo-l-Trityl- lH-imidazole.
R2 R2\\
PC\ AdDH \ // R1
/ / 1
N o
I o I x)
CPh3
To a d solution of 4-iodo-l-trityl-lH-imidazole (218 mg, 0.5 mmol) in
anhydrous THF (4 mL) at rt was added EtMgBr (1.0 M in THF, 0.5 mmol, 0.5 mL) dropwise,
under an atmosphere of N2. The resulting solution was allowed to stir for 90 min and
anhydrous ZnClz (0.5 mmol, 68.2 mg) was added. The resulting white sion was
d to stir for 90 min and a solution of the appropriate aryl iodide 1, 2 or 86 (0.5 mmol)
in THF (1 mL) was added followed by the immediate on of Pd(PPh3)4 (56 mg, 0.05
mmol). The reaction mixture was allowed to stir at 70 0C for 12 h under an atmosphere of
N2. After cooling to room temperature, the solution was diluted with CHzClz (20 mL) and the
c layer was washed with an EDTA (aq) buffer (pH = 9) (2 x 5 mL) and brine. The
organic layer was dried (NaZSO4) and concentrated under reduced pressure. The crude
residue was used in next step without further purification. To a solution of the crude
imidazole from the preVious step was added acetic acid (1.0 mL) and MeOH (4.0 mL). The
solution was stirred at 90 0C for 3 h. The reaction mixture was allowed to cool to room
temperature and the pH was adjusted to ~10 with satd. K2CO3 (aq). The aqueous phase was
extracted with EtOAc (3 x 20 mL). The combined organic layers were washed with water,
brine and dried. The solvent was removed in vacuo to afford the crude residue, which was
purified by flash column chromatography on silica gel to afford the following compounds.
2—(6-chloro-5H—imidazo[5, l -a]isoindol-5—
yl)- l -cyclohexylethanone
1H NMR 1.18—1.36 (m, 5H), 1.68—1.88 (m, 5H), 2.37—2.40 (m, 1H), 2.64 (dd, 1H, J:
.0 Hz, 10.0 Hz), 3.79 (dd, 1H, J: 16.0 Hz, 4.0 Hz), 5.70 (d, 1H, J: 8.0 Hz), .20
(m, 2H), 7.32 (t, 1H, J: 8.0 Hz), 7.43 (d, 1H, J: 8.0 Hz), 7.61 (s, 1H)
ethyl 2-(5H—imidazo[5, l -a]isoindol—5—
yl)acetate
1H NMR 1.31 (t, 3H, J: 7.5 Hz), 2.67 (dd, 1H, J: 20.0 Hz, 12.0 Hz), 3.07 (dd, 1H, J:
.0 Hz, 4.0 Hz), 4.25 (q, 2H, J: 6.0 Hz), 5.53 (dd, 1H, J: 12.0 Hz, 4.0 Hz), 7.16 (s,
1H), 7.21—7.37 (m, 3H), 7.51 (d, 1H, J: 6.0 Hz), 7.75 (s, 1H
2-(5H-imidazo[5, l-a]isoindol-5—yl)— l —(3 —
nitrophenyl)ethanone
1H NMR 3.49 (dd, 1H, J: 18.6 Hz, 9.6 Hz), 3.80 (dd, 2H, J = 18.3 Hz, 3.3 Hz), 5.84
(dd, 1H, J = 3 Hz, 9.3 Hz), 7.26—7.32 (m, 1H), 7.38—7.49 (m, 2H), 7.55—7.59 (m, 1H),
7.70—7.76 (m, 2H), 8.32 (d, 1H, J = 6 Hz), 8.46—8.50 (m, 1H), 8.78 (s, 1H)
Example 3 Suzuki Cross-Coupling of 4-Iodo-l-trityl-lH-imidazole with Phenylboronic
Acids
Trt\N/\\
| B(OH)2
kg \ N
+ l —> CH0
I}! // \
R I
Trt / /
A suspension of —l—trytyl— lH—imidazole (6.88 mmol ), the appropriate 2—formyl
boronic acid tive (10.31 mmol) and K3PO4 (20.63 mmol) in MN—dimethylformamide
(30 mL) and water (6 mL) was purged with en for 5 minutes, followed by the addition
of Pd(PPh3)4 and the mixture was purged with nitrogen for another 5 minutes. The reaction
mixture was stirred at 90 0C for 16 h under an atmosphere of N2.The on was allowed to
cool and was filtered through a plug of celite. The mixture was diluted with water (50 mL)
and EtOAc (25 mL). The organic layer was collected and the aqueous layer was extracted
with EtOAc (2 x 25 mL). The combined c extracts were washed with water (2 x 25
mL), brine and dried (NaZSO4). The solution was ed and the solvent was d under
reduced pressure to afford the crude product which was purified by flash column
chromatography on silica gel to provide the following compounds.
# mm
,Trt
/ N
2-( l l- lH—imidazolyl)benzaldehyde 52
1H NMR7.03 (s, 1H), 7.18—7.20 (m, 6 H), 7.36—7.39 (m, 10H), 7.53—7.58 (m, 3H), 7.64
(d, 1H, J= 7.78 Hz), 7.93 (d, 1H, J= 7.87 Hz)
NF/N/ 2—fluoro—6—( l —trityl— lH-imidazol—4—
\ F yl)benzaldehyde
1H NMR7.02—7.07 (m, 1H), 7.10 (d, 1H, J= 1.6 Hz), 7.16—7.18 (m, 6H), 7.36—7.39 (m,
9H), 7.46—7.52 (m, 2H), 7.57 (s, 1H), 10.27 (s, 1H)
-chloro( l -trityl- lH—imidazol
yl)benzaldehyde
1H NMR7.04 (d, 1H, J: 1.2 Hz), 7.10—7.19 (m, 5H), 7.32—7.38 (m, 12H), 7.58 (dd, 1H,
J: 2.4, 8.4 Hz), 7.57—7.59 (m, 2H), 7.89 (d, 1H, J: 2.0 Hz), 10.34 (s, 1H)
rt N \ 4-chloro( l -trityl- lH—imidazol
N zaldehyde
1H NMR7.08—7.38 (m, 18 H), 7.60 (s, 1H), 7.88 (d, 1H, J= 8.4 Hz), 10.41 (s, 1H)
Trt\
N \ 4—fluoro—2—( l —trityl— lH-imidazol—4—
7 RN 89
yl)benzaldehyde
H NMR(MeOH-d4) 7.16—7.27 (m, 6H), 7.29—7.47 (m, 3H), 7.60—7.70 (m, 9H), 7.85—
7.90 (m, 2H), 10.26 (s, 1H)
Example 4 3 -Methoxy(1-trityl-1H-imidazolyl)benzaldehyde
\[\>N 2 ) /JN
Trt/N
N 8
A suspension of 88 (667 mg, 2.55 mmol), bis(pinacolato)diboron (711 mg, 2.88
mmol), KOAc (749 mg, 7.64 mmol), Pd(OAc)2 (17 mg, 76 pmol) in DMF (10 mL) was
stirred at 80 CC for 16 h. The mixture was filtered through a plug of Celite and the filtrate
poured into water. The aqueous layer was extracted with EtOAc (2 x 30 mL). The combined
organic extracts were washed with water (2 x 10 mL), brine, dried and trated. The
crude product was used without further purification. A suspension of 4-iodo—1-trityl—1H-
ole (400 mg, 0.917 mmol), 3-methoxy(4,4,5,5-tetramethyl-1,3,2-dioxaborolan
yl)benzaldehyde (288 mg, 1.10 mmol), K2C03 (444 mg, 3.21 mmol), f)Clz°CH2Clz
complex (150 mg, 0.18 mmol) in DMSO (10 mL) was heated at 80 CC for 20 h. The solution
was filtered through Celite and the filtrate poured into water. The aqueous layer was
extracted with ethyl acetate (2 x 20 mL). The combined organic layers were washed with
water (2 x 10 mL), brine, dried, and concentrated. The crude was purified by flash column
chromatography to afford 8 as a white solid (78 mg, 19%). 1H NMR: 3.75 (s, 3H), 7.08 (d,
1H, J= 8.0 Hz), 7.20—7.25 (m, 7H), 7.30—7.36 (m, 10H), 7.52 (s, 1H), 7.55 (d, 1H, J= 4.0
Hz), 10.31 (s, 1H).
Example 5 General Procedure for the sis of 2-(5H-imidazo[5,1-a]isoindol
yl)ethanones by Aldol Condensation of 2-(1-trityl-1H—imidazol
zaldehydes with Methyl Ketones Followed by Cyclization
R2 R2
o 1 ) NaOEt
JJ\ R1
R1 I
0 2) AcOH
/ o
N\ ,)
LN‘ N
To a solution of the riate aldehyde 3-8 (0.97 mmol) and ketone (0.97 mmol) in
anhydrous THF (5 mL) at rt was added NaOEt (1.25 mmol, 21 wt % solution in EtOH) and
the yellow solution was d to stir 3 h at rt. The solvent was distilled off and the crude
was diluted with saturated NH4Cl (10 mL) and the s layer was extracted with
romethane (3 x 20 mL). The ed organic extracts were washed with brine, dried
over NaZSO4 and the solvent evaporated under reduced pressure to afford the crude product.
To the crude imidazole from the previous step was added acetic acid (1.0 mL) and MeOH
(4.0 mL). The solution was stirred at 90 0C for 3-10 h. The reaction mixture was allowed to
cool to room temperature and the pH was adjusted to ~10 with satd. K2CO3 (aq). The aqueous
phase was extracted with EtOAc (3 x 20 mL). The combined organic layers were washed
with water, brine, and dried. The solvent was removed in vacuo to afford the crude residue,
which was purified by flash column chromatography on silica gel to afford the following
compounds.
Yield (%)
2-(5H—imidazo[5,1—a]isoindol—5—
yl)— l -(2-nitrophenyl)ethanone
1H NMR 3.19 (dd, 1H, J: 20.0 Hz, 8.0 Hz), 3.65 (dd, 1H, J: 20.0 Hz, 4.0 Hz), 5.81
(dd, 1H, J: 8.0 Hz, 4.0 Hz), 7.19 (s, 1H), 7.22—7.28 (m, 1H), 7.36 (m, 3H), 7.54 (d,
1H, J: 8.0 Hz), 7.61—7.65 (m, 1H), 7.70—7.74 (m, 1H), 7.85 (s, 1H), 8.16 (d, 1H, J:
8.0 Hz).
tert-butyl (2-(2-(5H-imidazo[5, l -
a]isoindol—5—
yl)acetyl)phenyl)carbamate
1H NMR 1.50 (s, 9H), 3.47 (dd, 1H, J: 18.0 Hz, 9.6 Hz), 3.77 (dd, 1H, 18.0 Hz, 3.3
Hz), 5.77—5.81 (m, 1H), 6.98 (t, 1H, J: 8.0 Hz), 7.19 (s, 1H), 7.28 (d, 1H, J: 7.6 Hz),
7.37 (d, 1H, J= 8.0 Hz), 7.41 (d, 1H, J= 8.0 Hz), 7.52—7.56 (m, 2H), 7.72 (d, 1H, J=
8.0 Hz), 7.77 (s, 1H), 8.54 (d, 1H, .1: 8.4 Hz)
tert-butyl (4-(2-(5H—imidazo[5, 1-
a]isoind01—5— 39
yl)acetyl)phenyl)carbamate
H NMR 1.52 (s, 9H), 3.39 (dd, 1H, J = 18.6 Hz, 9.6 Hz), 3.68 (dd, 1H, J = 18.3 Hz,
3.3 Hz), 5.83 (dd, 1H, J= 3 Hz, 9.3 Hz), 6.88 (s, 1H), 7.14—7.58 (m, 7H), 7.75 (s, 1H),
7.92 (d, 2H, .1: 9 Hz)
0 O 2-(5H—imidazo[5,1-a]isoind01—5—
2V2 O y1)phenylethan0ne
1348
1H NMR 3.44 (dd, 1H, J= 20.0 Hz, 8.0 Hz), 3.72 (dd, 1H, J= 20.0 Hz, 4.0 Hz), 5.83
(d, 1H, J= 8.0 Hz), 7.18 (s, 1H), 7.25—7.29 (m, 1H), 7.40 (t, 2H, .1: 10 Hz), 7.47 (t,
2H, J= 8.0 Hz), 7.57 (d, 1H, J= 8.0 Hz), 7.61 (t, 1H, J= 6.0 Hz), 7.74 (s, 1H), 7.97
(d, 2H, .1: 8 Hz)
tert-butyl 4-(2-(5H-imidazo[5,1-
a]isoind01—5 -y1)acety1)piperidine- 19
l-carboxylate
H NMR 1.44 (s, 9H), 1.50—1.82 (m, 4H), 2.72-2.76 (m, 2H), 2.90 (dd, 1H, J= 18.5
Hz, 9.4 Hz), 3.21 (dd, 1H, J= 18.57 Hz, 3.6 Hz), 5.63 (dd, 1H, J= 9.6 Hz, 3.6 Hz),
7.16 (s, 1H), 7.23 (m, 2H), 7.35-7.39 (m, 1H), 7.53 (d, 1H, J= 7.5 Hz), 7.59 (s, 1H)
%) 2—(6—fluoro-5H-imidazo[5, 1- F
ind01—5—y1)(1,4- 18
/ N O d10xasp110[4.5]decan—8—
Na 0
y1)ethan0ne
1H NMR (MeOH—d4) 1.50—1.90 (m, 6H), .60 (m, 2H), 2.98 (dd, 1H, J= 18.9
Hz, 10.2 Hz), 3.61 (dd, 1H, J= 18.9 Hz, 2.7 Hz), 5.78—5.82 (m, 1H), 7.01—7.07 (m,
1H), 7.16 (s, 1H), 7.42—7.45 (m, 2H), 7.66 (s, 1H)
_—9»
2-(8-chloro-5H-imidazo[5,1-
a]isoind01—5-y1)—1— 21
I) cyclohexylethanone
HNMR (MeOHd4) 110190 (m 10H), 242248 (m 1H), 299 (dd 1H, J: 189
Hz,9Hz),34,0(dd1H, J=189,Hz 3.6Hz), 5.585,62(m 1H), 695708(m 1H),
716788 (m 4H)
2-(7-chloro-5H-imidazo[5,1-
a]isoind01—5-y1)—1— 43
/ 5) O cyclohexylethanone
HNMR1. 19—1.46(m, 5H), 1.68— 1.70(m, 1H), 1.7—8 1.91 (m, 5H), 2.35—2.43 (m,
1H), 2. 91 (dd, 1H, J= 10.0, 20.0 Hz), 3.18 (dd, 1H, J=4.0, 20.0 Hz), 5.611 (dd, 1H, J
=40, 8.0,Hz)7.15(s,1H),7.2,8(s1H),7.35(d,1H, J= 8.0,Hz)7.4,5(d1H, J= 8.0
Hz), 7.60 (s, 1H)
1—cyc10hexy1—2—(6—fluoro—5H-
imidazo[5,1-a]isoind01—5— 50
I [>0 y1)ethan0ne
HNMR12014,8(m 5H),1.6616,9(m1H)17819,2(m 5H),2.362.,44(m1H),
27,9(de—120200Hz)35,0(dd1H,J—40200Hz)57,7(d1H,J—80Hz),
69,4(t1H, J= 80,Hz) 71,8(s 1H), ,37(m 2H), 76,2(s 1H)
1-cyc10hexy1—2-(9-meth0xy-5H-
o[5,1-a]isoind01—5- 41
/ N
/) O y1)ethan0ne
1HNMR13214,2(m 2H),1.6—.,6169(m1H),17819,0(m 4H), 235238(m
,8(dd1H, J=184,H210Hz),31,7(dd1H, J=138,Hz 32,Hz) 39,6(s
3H), 564(m 1H), 68,8(d 2H, J=8Hz),71,5(s 1H),72,1(t1H, J= 8Hz),
75,9(s 1H),
2-(5H-imidazo[5,1—a]isoind01—5—
O y1)- 1-(tetrahydro-2H-pyran 6 1
/ N
/) O y1)ethan0ne
H NMR 1.75—1.84 (m, 4H), 2.58—2.62 (m, 1H), 2.90 (dd, 1H, .1: 18.4 Hz, 9.6 Hz),
3.21 (dd, 1H, J: 18.4 Hz, 3.6 Hz), 3.38—3.45 (m, 2H), 3.99—4.01 (m, 2H), 5.65 (dd,
1H, J: 9.6 Hz, 3.6 Hz), 7.17 (s, 1H), 7.22—7.30 (m, 2H), 7.38 (dt, 1H, J: 7.2 Hz, 0.8
Hz), 7.54 (d, 1H, J: 7.6 Hz), 7.61 (s, 1H)
F 1—cyc10hexy1—2—(8—fluoro—5H-
o[5,1—a]isoind01—5— 5 8
16 N O
/ /> y1)ethan0ne
tert—butyl (3—(2-(5H-imidazo[5, 1-
a]isoind01—5— 80
yl)acetyl)phenyl)carbamate
1-cyclopenty1—2-(5H-imidazo[5, 1-
18 N
/ O nd01—5 —y1)ethan0ne
1H NMR a
0 CI
1-(2—chlorophenyl)(5H-
O imidazo[5,1—a]isoind01—5— 15
1334 O \—\\N yl)ethan0ne
H NMR 3.30—3.50 (m, 1H), 3.65—3.85 (m, 1H), 5.50—5.70 (m, 1H), 7.17 (s, 1H), 7.20—
7.60 (m, 8H), 7.75 (s, 1H)
CI 1-(3 -chlorophenyl)(5H-
1353 O imidazo[5,1—a]isoind01—5— 20
O N\—\\N y1)ethan0ne
I HNMR 3.30—3.50 (m, 1H), 3.60-3.75 (m, 1H), 5.75-5.85 (m, 1H), 7.15 (s, H), 7.20—7.60 (m, 6H), 7.69 (s, 1H), 7.82 (d, 1H, J= 10.4 Hz), 7930, 1H, .1: 2.4 Hz)
aThe compound was not characterized and was used as such for the next synthetic step
Example 6 Ethyl 4-methylenecyclohexanecarboxylate
O O\/ O O\/
n-BuLi
To a suspension of methyltriphenylphosphonium e (1.57 g, 4.41 mmol) in THF
(9 mL) at -10 CC was added n-BuLi (2.5 M in hexanes, 1.65 mL, 4.11 mmol) dropwise and
the solution was allowed to stir for 1h. Ethyl 4-oxocyclohexanecarboxylate (0.47 mL, 2.94
mmol) was added and the reaction was allowed to warm to room temperature over 3 h.
Acetone (3 mL) was added and the solvent was removed under reduced pressure. The residue
was suspended in dichloromethane and ethyl ether (1:1), d and concentrated. The crude
was purified by flash column chromatography to afford 19 as clear oil (419 mg, 85%). 1H
NMR: 1.25 (t, 3H), 1.50—1.70 (m, 2H), 1.90—2.16 (m, 4H), 2.30—2.50 (m, 3H), 4.12 (q, 2H),
4.65 (s, 2H).
Example 7 Ethyl 4-(iodomethylene)cyclohexanecarboxylate
I' E": o
2040 7”“
0 ' Ph A34
| o
< 20 K
KHMDS
To a suspension of iodomethyltriphenylphosphonium iodide (1.95 g, 3.67 mmol) in
THF (10 mL) at -23°C was slowly added a solution of potassium hexamethyldisilazane (20%
in toluene, 7.34 mL, 3.67 mmol) and the resulting solution was allowed to stir for 15 min.
Ethyl 4—oxocyclohexanecarboxylate (500 mg, 2.94 mmol) was added. The cold bath was
removed and the solution was allowed to stir at room temperature for 2 days. The reaction
mixture was diluted with water (20 mL) and extracted with ether (3 x 20 mL). The ed
organic layers were dried over anhydrous MgSO4 and concentrated to obtain the crude
product. The crude residue was d by column chromatography to obtain 20 as light pink
oil (207 mg, 24%). 1H NMR: 1.21—1.52 (m, 2H), 1.93—2.13 (m, 4H), 2.30—2.50 (m, 4H), 2.49—
2.70 (m, 4H), 4.12 (q, 2H), 4.60 (s, 1H)
Example 8 Ethyl panylidene)cyclohexanecarboxylate
To a suspension of isopropyltriphenylphosphonium iodide (3.81g, 8.81 mmol) in
anhydrous THF (20 mL) at 0 0C was added a solution of t—BuOK (1.19g, 10.58 mmol) in
THF (15 mL). The reaction mixture was allowed to warm to rt and stirred for 1 h. The
resulting mixture was cooled to 0 0C, 4—Oxo—cyclohexanecarboxylic acid ethyl ester (1.0 g,
.88 mmol) was added over a period of 5 min. The solution was allowed to slowly warm to rt
and d for 2h. The solution was stirred at 50 °C overnight. The solvent was distilled off
under reduced pressure and the crude was partitioned between CHzClz (50 mL) and satd.
NH4Cl (30 mL). The organic layer was collected and the aqueous layer was extracted with
CHzClz (2 x 30 mL). The organic layer was washed with brine, dried 4) and
concentrated under reduced pressured to obtain the crude product. The crude was purified by
column chromatography on silica gel to afford 21 as a clear oil (280 mg, 24%). 1H NMR:
1.24 (t, 3H, J: 6.0 Hz), 1.43—1.50 (m, 2H), 1.63 (s, 6H), 1.74—1.83 (m, 2H), 1.92—1.98 (m,
2H), 2.39—2.47 (m, 1H), 2.58-2.69 (m, 2H).
Example 9 Ethyl lopropylmethylene)cyclohexanecarboxylate
o e O
o:<:>—/< V/gppm KOtBu —
0 + Br o
To a suspension of cyclopropylmethyltriphenylphosphonium iodide (3.5 g, 8.81
mmol) in anhydrous THF (20 mL) at 0 0C was added a solution of t—BuOK (1.19g, 10.58
mmol) in THF (15 mL). The reaction e was allowed to warm to rt and stirred for 1 h.
The resulting e was cooled to 0 0C, 4-Oxo—cyclohexanecarboxylic acid ethyl ester (1.0
g, 5.88 mmol) was added over a period of 5 min. The solution was allowed to slowly warm to
rt and stirred for 2h. The solution was stirred at 50 °C overnight. The solvent was distilled off
under reduced pressure and the crude was partitioned between CHzClz (50 mL) and satd.
NH4Cl (30 mL). The organic layer was collected and the aqueous layer was extracted with
CHzClz (2 x 30 mL). The organic layer was washed with brine, dried (NaZSO4) and
concentrated under reduced pressured to obtain the crude product. The crude was ed by
column chromatography on silica gel to afford 22 as colorless oil (800 mg, 65%). 1H NMR:
CDCl3 0.22—0.26 (m, 2H), 0.62—0.68 (m, 2H), 1.22 (t, 3H, J: 7.2 Hz), .47 (m, 3H),
1.75—2.04 (m, 4H), 2.14—2.20 (m, 1H), .46 (m, 1H), .75 (m, 1H), 4.10 (q, 2H, J:
7.2 Hz), 4.49 (d, 1H, J= 9.3 Hz).
Example 10 Ethyl 4-(trityloxy)cyclohexanecarboxylate
( 23 <
To a solution of triphenylmethyl de (0.97 g, 3.48 mmol) in dichloromethane (10
mL) was added DBU (0.61 mL, 4.06 mmol) and ethyl 4-hydroxycyclohexanecarboxylate
(500 mg, 2.90 mmol) and the mixture was refluxed for 24 h. The reaction mixture cooled and
cold water (40 mL) was added. The organic layer was collected and the aqueous layer was
extracted with dichloromethane (2 x 30 ml). The combined organic layers were dried
(NaZSO4) and concentrated under reduced pressure. The crude was purified by flash column
chromatography to afford 23 as colorless oil (714 mg, 59%). 1HNMR: (mixture of cis and
trans isomers (1:14)) 1.06 (t, 2H, J = 12.4 Hz), 1.16—1.26 (m, 14H), 1.32—1.35 (m, 2H), 1.54—
1.58 (m, 2H), 1.76—1.79 (m, 3H),1.95-2.04 (m, 2H), .22 (m, 2H), 3.35—3.41 (m, 1.4H),
3.72—3.76 (m, 1H), 4.04 (q, 2.8H, J = 7.2 Hz), 4.14 (q, 2H, J = 6.8 Hz), 7.22-7.27 (m, 24H,
merged with CHCl3), 7.49—7.51 (m, 13H).
Example 11 Methyl cisaminocyclohexanecarboxylate hydrochloride
NH2 NHZHCI
A solution of cisaminocyclohexanecarboxylic acid (1.04 g, 7.26 mmol) in 10 mL of
methanol was cooled to 0 0C and l chloride (1.58 mL, 21.79 mmol) was added. The
reaction mixture was warmed to RT and stirred for 18 h. The reaction solution was
concentrated, and the residue was washed with ethyl ether to obtain 115 as ess crystals
(1.3 g, 92%). 1H NMR (CD3OD): 1.73—1.77 (m, 4H), .96 (m, 2H), 2.16—2.73 (m, 2H),
2.70—2.73 (m, 1H), 3.19—3.24 (m, 1H), 3.74 (s, 3H).
Example 12 Methyl cisbenzamidocyclohexanecarboxylate
O O O O
NHZIHCI HN
To a suspension of methyl cis—4—aminocyclohexanecarboxylate hydrochloride (0.63 g,
3.26 mmol) in CHzClz (10 mL) at 0 0C was added diisopropylethylamine (1.71 mL, 9.79
mmol) and the suspension was stirred for 10 minutes. Benzoyl chloride (0.45 mL, 3.92
mmol) was added dropwise and the clear solution was d to warm to rt and stirred
overnight. The reaction was d with water (15 mL) and CHzClz (15 mL), the organic
layer was collected and the aqueous layer was extracted with CHzClz (2 x 25 mL). The
combined organic extracts were dried over NaZSO4 and concentrated under reduce pressure to
afford 116 as a clear gel (850 mg, 100%). 1H NMR: 1.70—1.73 (m, 2H), 1.76—1.90 (m, 4H),
1.95-2.06 (m, 2H), 2.55-2.61 (m, 1H), 3.72 (s, 3H), .20 (m, 1H), 6.14 (d, 1H, J: 6.0
Hz), 7.43-7.47 (m, 2H), 7.49—7.51 (m, 1H), 7.76-7.78 (m, 2H).
Example 13 Methyl transaminocyclohexanecarboxylate hydrochloride
SeSNH2HC|
A solution of transaminocyclohexanecarboxylic acid (1.24 g, 8.66 mmol) in 12 mL of
methanol was cooled to 0 0C and thionyl chloride (1.89 mL, 25.98 mmol) was added. The
reaction mixture was warmed to RT and d for 18 h. The reaction solution was
concentrated, and the residue was washed with ethyl ether to obtain 117 as ess crystals
(1.61 g, 95%). 1H NMR (CD3OD): 1.43—1.61 (m, 4H), 2.11—2.15 (m, 4H), 2.39 (dt, 1H, J:
2.8, 11.8 Hz), 3.12 (dt, 1H, J: 3.2, 8.0 Hz), 3.70 (s, 3H).
Example 14 Methyl transbenzamidocyclohexanecarboxylate
NH2HC| HNY
To a suspension of methyl trans—4—aminocyclohexanecarboxylate hydrochloride, 9.79
mmol) and the suspension was stirred for 10 minutes. Benzoyl chloride (0.45 mL, 3.92
mmol) was added se and the clear solution was allowed to warm to rt and stirred
overnight. The reaction was d with water (15 mL) and CHzClz (15 mL), the organic
layer was separated and the aqueous layer was extracted with CHzClz (2 x 25 mL). The
combined organic t was dried over NaZSO4 and concentrated under reduce pressure to
afford 118 as a white solid (200 mg, 24%). 1H NMR (CD3OD): 1.46 (q, 2H, J: 11.5 Hz),
1.60 (q, 2H, J: 12.0 Hz), 2.09 (d, 4H, J: 11.2 Hz), 2.37 (t, 1H, J: 12.0 Hz), 3.71 (s, 3H),
3.90 (t, 1H, J= 11.4 Hz), 7.46—7.57 (m, 3H), 7.83 (d, 2H, J= 7.1 Hz).
Example 15 1-tert—butyl 3 -methyl azetidine- 1,3 -dicarboxylate
O OH O 0
v8“ —’ yOMHO
1—(t-butoxycarbonyl)azetidinecarboxylic acid (2.03 g, 10.09 mmol) was dissolved
in MeOH (10 ml) and DCM (10 mL) and then cooled to 0 0C. A 2M solution of
trimethylsilyldiazomethane in ether (7.57 ml, 15.1 mmol) was then added drop—wise over 5
minutes. The on was stirred for 10 minutes at 0 0C and then warmed to room
temperature over 30 minutes. The solution was concentrated under reduced pressure to
remove volatiles to afford crude 119, which was used directly in the next step without further
cation. 1H NMR: 1.44 (s, 9H), 3.35 (m, 1H), 3.75 (s, 3H), 4.10 (d, 4H, J = 7.6 Hz).
Example 16 Methyl cishydroxycyclohexanecarboxylate
O OH O /
OH OH
To a solution of hydroxycyclohexanecarboxylic acid (5.0 g, 34.7 mmol) in dry
MeOH (40 mL) at RT, was added concentrated H2804 (0.2 mL, 3.47 mmol) and the solution
was stirred at 65 0C for 16 h. The solvent was led off and the crude was dissolved in
EtOAc (40 mL) and the solution was washed with sat’d NaHCO3 solution (25 mL). The
organic layer was separated and the aqueous layer was extracted with EtOAc (2 x 20 mL).
The combined organic extracts were dried over NaZSO4 and concentrated under d
pressure to afford 120 (4.90 g, 89%).1H NMR: 1.62—2.01 (m, 8H), 2.34—2.38 (m, 1H), 3.64 (s,
3H), 3.82—3.88 (m, 1H).
Example 17 Methyl cis(benzyloxy)cyclohexanecarboxylate
O O o 0
+ Clka —>
OH 0
To a solution of methyl ciS-4—hydr'ox37cyclohexanecarboxylate (4.80 g, 30.3 mmol) in
hexane/CHC13 2:1 (60 mL) was added benzyl oroacetimidate (9.19 g, 36.4 mmol) and
trifluoromethanesulfonic acid (683 mg, 4.55 mmol) at 23 C. The reaction mixture was
d for 18 h and diluted with EtOAc (300 mL). The mixture was washed with saturated
aqueous NaHCO3, water and brine. The organic layer was dried over anhydrous Na2SO4 and
concentrated under reduced pressure. The crude reside was purified by column
chromatography on silica gel to afford 121 (4.60 g, 18.5 mmol)._1H NMR: 1.55—1.98 (m,
8H), 2.36—2.41 (s, 1H), 3.56—3.66 (, 1H), 3.67 (s, 3H), 4.51 (s, 2H), 7.28—7.35 (m, 5H).
Example 18 General ure for the Reaction of Methyl Piperidinecarboxylate
hydrochloride with Acid Chlorides
mm i-Pr2NEt o 0
+ r
0— R CI H34
To a suspension of methyl piperidinecarboxylate hydrochloride (5.6 mmol) in
CHzClz (20 mL) at 0 CC was added diisopropylethyl amine (16.7 mmol) and the sion
was d for 10 minutes. Appropriate acid chloride (8.4 mmol) was added dropwise and the
solution was d to warm to rt and stirred overnight. The reaction was diluted with water
(15 mL) and CHzClz (15 mL). The organic layer was collected and the aqueous layer was
extracted with CHzClz (2 x 20 mL). The combined organic extracts were dried (Na2SO4) and
concentrated under reduce pressure to afford the following compounds.
# Compound Name Yield (%)
methyl loylpiperidine—4-carboxylate
1H NMR 1.21 (s, 9H) 1.65—1.53 (m, 2H), 1.87—1.92 (m, 2H), 2.48—2.52 (m, 1H), 2.89—2.93
(m, 2H), 3.63 (s, 3H), 4.18—4.22 (m, 1H), 4.24—4.27 (m, 1H)
methyl l-(thiophenecarbonyl)piperidine
carboxylate
1H NMR 1.69—1.79 (m, 2H), 1.89—1.95 (m, 2H), 2.56—2.63 (m, 1H), 3.12 (t, 2H, .1: 12.0
Hz), 3.68 (s, 3H), 4.28—4.31 (m, 2H), 70—702 (m, 1H), 7.24—7.26 (m, 1H), 7.40—7.42 (m,
methyl 1-(2-phenylacetyl)piperidine
carboxylate
1H NMR 1.30—1.95 (m, 4H), 2.35—2.55(m, 1H), .85 (m, 1H), 2.95—3.10 (m, 1H), 3.62
(s, 3H), 3.70 (s, 2H), 3.70-3.85(m, 1H), 4.30—4.40 (m, 1H), 7.15—7.35 (m, 5H)
Example 19 Methyl 2—bromo—3—fluorobenzoate
F F
Br Br
SOCI2
0“ MeOH 0\
o o
To a suspension of 2—bromo—3—fluorobenzoic acid (300 mg, 1.37 mmol) in methanol
(10 mL) at rt, was added SOClz (0.11 mL, 1.51 mmol) and the mixture was d at rt for 18
h. The solvent was distilled off under reduced pressure. The crude was basified by adding
saturated aqueous NaHCO3 solution and the s layer was extracted with EtOAc (3 x 25
mL). The combined organic layers were dried over NaZSO4, filtered and concentrated. The
obtained crude product was used in the next step t further purification.
Example 20 Methyl 3 -fluoro( 1 -trityl- lH-imidazolyl)benzoate
Trt‘
EtMg B r
Trt\ N_\\
"‘\_\\N \ N
S/ o A OMe
+ F
Br OMe Pd<PPh3)4 o
To a stirred solution of 4-iodo-l-trityl- lH-imidazole (436 mg, 1.0 mmol) in
ous THF (6 mL) was added EtMgBr (3.0 M in THF, 1.20 mmol, 0.40 mL) under an
atmosphere of N2. The resulting on was allowed to stir for 90 min and ZnClz (0.5 M in
2012/033245
THF, 2.40 mL, 1.20 mmol) was added. The ing white sion was allowed to stir
for 90 min and a solution of methyl 2-bromofluorobenzoate (280 mg, 1.20 mmol) in THF
(1 mL) was added followed by the immediate addition of Pd(PPh3)4 (58 mg, 0.05 mmol).
The reaction mixture was allowed to stir at 90 CC for 18 h under an atmosphere of N2. After
cooling to room temperature, the solution was diluted with CHzClz (20 mL) and the organic
layer was washed with an EDTA (aq) buffer (pH = 9) (2 x 5 mL) and brine. The organic layer
was dried 4) and concentrated under reduced pressure. The crude residue was d
by flash column chromatography to afford the desired product as yellow oil (190 mg, 41 %).
1H NMR: 3.93 (s, 3H), 7.12—7.59 (m, 18H), 7.56 (s, 1H), 7.73—7.75 (m, 1H).
Example 21 3 -Fluoro(1-trityl-1H-imidazolyl)benzaldehyde
N’\\
DIBAL—H
To a solution of methyl 3-fluoro(1-trityl-1H-imidazolyl)benzoate (62 mg, 0.134
mmol) in toluene (4 mL) at -78 CC was added dropwise a solution DIBAH (1 M, 0.161 mL,
0.161 mmol) Stirring was continued at for 10 min. At this temperature, dry methanol was
added. The e was poured into saturated s NH4Cl (5 mL), diluted with EtOAc
(15 mL), shaken vigorously for 3 min, added brine (5 mL), shaken again, the phases
ted and the organic layer dried over NaZSO4, filtered, and evaporated to give the
desired aldehyde which was used without further purification.
Example 22 General Procedure for the Synthesis of Dimethyl (2-oxo)phosphonates
O o
1 '
I. )n-BuLI
—P—0Me RJK/R\\ IOMe
(IDM i OMe
e 2)
R OMe
To a stirred solution of dimethyl methylphosphonate (3.14 g, 25.3 mmol) in 20 ml of
anhydrous tetrahydrofuran at -78 0C was added dropwise a solution of n-butyl lithium (10.13
mL, 25.3 mmol, 2.5 M in hexanes) under an atmosphere of N2, and the mixture was stirred
for 30 minutes. To this reaction mixture was added dropwise a solution of the appropriate
commercially available methyl or ethyl ester or 19-26, 91 or 115-121 (12.7 mmol) as a
solution in THF (5 mL). After being stirred for 30 minutes, the reaction e was allowed
2012/033245
to warm to 0 0C, and stirred for l h. The solvent was distilled off and the crude was diluted
with ted NH4Cl (10 mL) and 10 ml of water. The mixture was extracted with ethyl
acetate (2 x 40 mL). The combined ethyl acetate layers were washed with water (1 x 20 mL),
brine (l x 20 mL) and dried over anhydrous sodium sulfate. The solution was filtered and
trated under reduced pressure to afford the crude product. The crude was purified by
column chromatography to afford the ing compounds.
# Compound Name Yield (%)
O O
“ ,OMe dimethyl (2-(2,5-dimethylfuranyl)—2-
I P\OM 52
e oxoethM)l hosphonate
27 0
1H NMR 2.23 (s, 3H), 2.53 (s, 3H), 3.31 (d, 2H, J: 22.5 Hz), 3.75 (s, 3H), 3.79 (s, 3H),
6.24 (s, 1H)
m90 d1methyl (2—(furan—2—yl)—2—-
O P—OMe
| oxoethyl)phosphonate
28 OMe
1H NMR 3.52 (d, 2H, J: 22.6 Hz), 3.75 (s, 3H), 3.78 (s, 3H), 6.56 (d, 1H, J: 1.6 Hz),
7.29 (s, 1H), 7.62 (s, 1H)
dimethyl (2-( 1 -methyl- lH-imidazol
yl)—2-oxoethyl)phosphonate
1H NMR 3.80 (s, 3H), 3.83 (s, 3H), 3.88 (d, 2H, J: 22.2 Hz), 4.01 (s, 3H), 7.07 (s, 1H),
7.18 (s, 1H)
0 O . .
\\ ,0 Me yl (2-oxo(th1azol
SVV‘OMe yl)ethyl)phosphonate
1H NMR 3.76 (s, 3H), 3.79 (s, 3H), 3.90 (d, 2H, J: 22.8 Hz), 8.32 (s, 1H), 8.85 (s, 1H)
9’ dimethy12-(4,4-difluorocyclohexyl)—2-
F 82
Ifo\ oxoethylphosphonate
31 O
1H NMR , .7213} (16,411), 1.96—1.93 (m, 2H), 3.11—2.13 (m, 2H). 2.63—2.71) (m, 1H),
314 (d, 211,11: 2.2.4 Hz), 3.79 (61, (3&1: 11.2 Hz)
d1meth. y12- 4-meth( ylenecyclohexy)l
32 fl? 67
fi—O\ oxoethylphosphonate
WO 42237
H NMR 1.43—1.53 (m, 2H), 1.95—2.13 (m, 4H), 2.37—2.41 (m, 2H), 2.72—2.78 (m, 1H),
3.18 (d, 2H, J: 22.5 Hz), 3.82 (d, 6H, J: 11.3 Hz), 4.68 (s, 2H)
[OWE-O0 o dimethyl 2-0x0(1,4-
dioxaspiro[4.5]decan—8— 72
' \
33 O y1)ethy1phosph0nate
1H NMR 1.31—1.39 (m, 2H), 1.70—1.85 (m, 5H), 1.85—1.98 (m, 2H), 3.15 (d, 2H, J= 11.2
Hz), 3.77 (d, J= 18 Hz, 6H), 3.92 (m, 4H)
~O—gO dimethyl 2—(4—methylcyclohexyl)—2—
O:P\—O Me oxoethylphosphonate
1H NMR 0.88—0.90 (m, 3H), 1.20—1.50 (m, 2H), 1.50—1.65 (m, 5H), 1.80—1.95 (m, 2H),
2.62—2.71 (m, 2H), 3.13 (d, J: 22.8 Hz, 2H), 3.73 and 3.80 (two 8, 6H)
dimethyl 2-(4-
(iodomethylene)cyc10hexy1)—2— 47
oxoethylphosphonate
1H NMR 1.20-1.52 (m, 2H), 1.93-2.10 (m, 4H), 2.30-2.36 (m, 1H), 2.49-2.58 (m, 4H),
3.07—3.10(m, 2H), 3.73—3.76 (m, 6H), 4.60 (s, 1H)
> O O _ (LE—o dimethyl (4-(propan
| ylidene)cyc10hexy1)ethy1)ph0sphonate
36 OMe
1H NMR 1.28—1.42 (m, 2H), 1.63 (s, 6H), 1.72—1.96 (m, 4H), 2.65—2.75 (m, 3H), 3.12 (d,
1H, J: 21.0 Hz), 3.75 (d, 6H, J: 12.0 Hz)
O dimethyl (2—(4—
P (cyclopropylmethylene)cyclohexyl)—2— 68
oxoethy1)phosph0nate
H NMR 0.24 (s, 2H), 0.67 (d, 2H, J= 7.8 Hz), 1.39—1.43 (m, 3H), 1.86-2.07 (m, 4H),
.21 (m, 1H), 2.71—2.79 (m, 2H), 3.13 (d, 2H, J: 22.5 Hz), 3.77 (d, 6H, J= 11.2 Hz),
4.50 (d, 1H, J= 9.3 Hz)
O O
72~N [lo dimethyl (2-0x0(1-piva10y1piperidin-
38 4-y1)ethy1)phosph0nate
1H NMR 1.23 (s, 9H), 1.51 (m, 1H, 1.87 (m, 3H), 2.85 (m, 3H), 3.02 (s, 1H), 3.14 (s, 1H),
-3.75 (d, 6H, .1: 11.2 Hz), 4.34 (m, 1H), 4.37 (m, 1H)
N O
1M00 dimethy1 (2- l-meth( yl-lH-imidazol-S-
/P\ 0xoethyl)phosph0nate
39 MeO OMe
1H NMR 3.35 (d, 2H, .1: 22.8 Hz), 3.74 (d, 6H, .1: 11.2 Hz), 3.86 (s, 3H), 7.54 (s, 1H),
7.78 (s, 1H)
F dimethyl (2—(1—methy1—1H—imidazol—4—
/ O
/N Pl, 29
l \ Y)1 _2 _0X06thly)phOSp onaeh t
40 MeO OMe
1H NMR 3.66—3.74 (s, 3H merged with d, 2H, .1: 22.5 Hz), 3.78 (d, 6H, .1: 11.2 Hz), 7.44
(s, 1H), 7.63 (s, 1H)
dimethyl (2-0x0(thiazol
41 y1)ethy1)phosph0nate
dimethyl (2-(1-acetylpiperidiny1)—2-
oxoethyl)phosph0nate
1H NMR 1.44—1.69 (m, 2H), .89 (m, 2H), 2.07 (s, 3H), 2.66—2.73 (m, 1H), 2.79—2.85
(m, 1H), 3.03—3.22 (m, 3H), 3.72—3.83 (m, 1H overlapping with d, 6H, J: 11.2 Hz), 4.53
(d,1H, J: 13.4 Hz)
O O dimethyl (2-0x0(1-(thiophene
N O
Pg] yl)piperidin 59
\ S MeO 0 Me y1)ethy1)phosph0nate
1H NMR 1.63 (m, 2H), 1.95 (m, 2H), 2.89 (s, 1H), 3.07 (m, 2H), 3.10 (s, 1H), 3.18 (s, 1H),
3.77 (d, 6H, J: 11.2 Hz), 4.38 (m, 2H), 7.02 (dd, 1H, J: 5.0 Hz, 3.7 Hz), 7.25 (dd, 1H, .1
= 3.7 Hz, 1.1 Hz), 7.42 (dd, 1H, .1: 5.1 Hz, 1.2 Hz)
o o dimethyl 2-0x0(1-(2-
O}N 6’0 phenylacetyl)piperidin—4— 39
MeO OMe y1)ethy1phosph0nate
1H NMR 1.20—1.90 (m, 4H), 1.67 (d, 1H, .1: 10.2 Hz), 1.84 (d, 1H, .1: 9.6 Hz), 2.55—2.75
(m, 2H), 2.90—3.15 (m, 2H) 3.70 (d, 6H, .1: 11.2 Hz), 3.90 (d, 1H, J = 10.2
, 3.65(s, 2H) ,
Hz), 4.48 (d, 1H, J = 9.9 Hz), 7.10—7.30 (m, 5H)
_—<%
O O\/ dimethy13 0hexy12-
O 70
P\\/ \ oxopropylphosphonate
45 o
1H NMR 0.60—1.15 (m, 5H), 1.35—1.71 (m, 5H), 2.28 (d, 2H, J: 8.8 Hz), 2.83 (s, 1H), 2.91
(s, 1H), 3.55 (s, 3H), 3.59 (s, 1H)
TrtoMOO / dlmethyl (2—0x0—2-(4—.
F'>—o 79
('5 \ (trityloxy)cyc10hexy1)ethy1)phosph0nate
1H NMR (mixture of cis and trans isomers) 1.08-1.36 (m, 5H), 1.59—1.91 (m, 3H), 2.41—
2.52 (m, 1H), 3.03 and 3.13 (two d, 2H, J = 20.0 Hz), 3.35—3.79 (m, 1H), 3.73—3.79 (m,
6H), 7.22—7.29 (m, 9H), 7.49—7.51 (m, 6H)
(tranS)—methy1 4-(2-
(dimethoxyphosphoryl)acety1)cyc10hexa 70
—OMe
122 Meogl OMe necarboxylate
1H NMR 1.31—1.53 (m, 4H), 2.00—2.20 (m, 4H), 2.23—2.31 (m, 1H), .61 (m, 1H),
3.13 (d, 2H, J: 22.6 Hz), 3.67 (s, 3H), 3.79 (d, 6H, J: 11.2 Hz)
— dimethyl (2-0x0(4-(propan
0¢ 70
ylidene)cyc10hexy1)ethy1)ph0sphonate
124 O,P\O/
1H NMR 1.28—1.42 (m, 2H), 1.63 (s, 6H), 1.72—1.96 (m, 4H), 2.65—2.75 (m, 3H), 3.12 (d,
1H, J: 21.0 Hz), 3.75 (d, 6H, J= 12.0 Hz)
mO0 dimethyl (2-0x0(spiro[2.5]0ctan—6—
PI/ 77
y1)ethy1)phosph0nate
125 Med \OMe
H NMR 0.13—0.27 (m, 4H), .95 (m, 2H), 1.40—2.06 (m, 6H), 2.52—2.58 (m, 1H),
3.11 (d, 2H, J = 24.0 Hz), 3.75 (d, 6H, J =12.0 Hz)
dimethyl (2-((trans)—4-((tert-
butyldimethylsilyl)0xy)cyc10hexy1)—2— 96
oxoethy1)phosph0nate
1H NMR 0.11 (s, 6H), 0.82 (s, 9H), 1.19—1.32 (m, 4H), 1.85—1.88 (m, 4H), 2.41—2.47 (m,
W7.)
-1H), 3.08 (d, 2H, J = 24.0 Hz), 3.72 (s, 3H), 3.74 (s, 3H)
dimethyl (2—((trans)-4_
(benzyloxy)cyclohexy1)—2- 16
127 y1)phosph0nate
1H NMR 1.13—1.41 (m, 4H), 1.93—2.02 (m, 2H), 2.12—2.15 (m, 2H), 2.51—2.56 (m, 1H),
3.11 (d, 2H J = 24 Hz), 3.27—3.32 (m, 1H), 3.75 (d, 6H, J = 12 Hz), .32 (m, 5H)
dimethyl (2-(cis—4—
benzamidocyclohexyI)—2— 83
oxoethy1)phosph0nate
1H NMR 1.76-1.85 (m, 8H), 2.78-2.79 (m, 1H), 3.18 (d, 2H, J= 22.8 Hz), 3.82 (d, 6H, J=
11.2 Hz), 4.21—4.25 (m, 1H), .52 (m, 3H), 7.76-7.78 (m, 2H)
dimethyl (2—(trans—4—
benzamidocyclohexy1) 54
oxoethy1)phosph0nate
H NMR 1.29 (dq, 2H, .1: 3.1, 12.1 Hz), 1.54 (dq, 2H, .1: 3.0, 11.5 Hz), 2.04 (d, 2H, J=
12.9 Hz), 2.12 (dd, 2H, .1: 3.0, 12.6 Hz), 2.60 (n, 1H, .1: 3.4, 12.0 Hz), 3.15 (d, 2H, .1:
22.6 Hz), 3.79 (d, 6H, .1: 11.2 Hz), 3.93—3.99 (m, 1H), 5.98 (d, 1H, .1: 7.7 Hz), 7.41—7.45
(m, 2H), 7.48—7.52 (m, 2H), 7.74 (d, 2H, .1: 7.1 Hz)
Flk dimethyl (2-0x0-2—(4-(2-
loxy)ethylidene)cyc10hexy1)ethy1)p 42
0 Ph
OkPhPh hosphonite
1H NMR 1.26—1.60 (m, 2H), 1.35—1.37 (m, 1H), 1.80—2.30 (m, 3H), 2.25—2.40 (m, 2H),
2.70-2.76 (m, 1H), 3.05 (d, J = 27 Hz, 2H), 3.57-3.61 (m, 2H), 3.71—3.75 (d, J = 12 Hz,
2H), 7.19—7.32 (m, 9H), 7.44—7.51 (m, 6H)
tert—butyl 3 -(2—
131 (dimethoxyphosphoryl)acety1)azetidine- 99
1-carb0xy1ate
- HNMR 1.43 (s, 9H), 3.11 (d, J: 24 Hz, 2H), 3.68—3.82 (m, 7H), 3.81—4.12 (m, 4H)
O '/O\
I: dlmethyl (pyr1d1n. . .
O 56
N/ yl)ethyl)phosphonate
132 I
1H NMR 3.69—3.77 (m, 6H), 3.96—4.04 (m, 2H), 7.45—7.48 (m, 1H), 7.80—7.85 (m, 1H),
.09 (m, 1H), 8.66—8.69 (m, 1H)
O |,O
I: \ dlmethyl (2—oxo(pyr1d1n. . .
O 65
| yl)ethyl)phosphonate
1H NMR 3.60—3.80 (m, 8H), 7,41—7.45 (m, 1H), 8.26—8.29 (m, 1H), 8.78—8.79 (m, 1H),
9.18 (m, 1H)
0 (ID/WMe
E dlmethyl (2—oxo(4-.
(trifluoromethyl)cyclohexyl)ethyl)phosp 30
134 honate
1H NMR 1.55—1.64 (m, 4H), 1.75—1.77 (m, 2H), 204—216 (m, 3H), 2.83—2.84 (m, 1H), 3.14
(d, J = 22.4 Hz, 2H), 3.78 (d, J = 11.2 Hz, 6H)
dimethyl (2—((ls,4s)—4—
(benzyloxy)cyclohexyl) 17
oxoethyl)phosphonate
H NMR 1.47—1.55 (m, 2H), 1.66—1.71 (m, 2H), .85 (m, 2H), 1.95—1.99 (m, 2H),
2.58—2.62 (m, 1H), 3.14 (d, 2H, J = 22.4 Hz), 3.60—3.63 (m, 1H), 3.78 (d, 6H, J = 11.2 Hz),
4.48 (s, 2H), 7.24—7.33 (m, 5H)
Example 23 General ure for the Synthesis of 2-(5H—imidazo[5,l-a]isoindol-5—
yl)ethanones by Homer—Wadsworth-Emmons Reaction Followed by
Cyclization.
\\ 2
\ /OMe R\\ O R1
I 1)R1 \
/ H OMe \ /
\ 2 N
N )AcOH /
L z)
N\ N
To a suspension of 95% NaH (17.4 mg, 0.7 mmol) in THF (3 mL) at 0 0C was added
the appropriate phosponate t 27-46, 89, 90 or 5 (0.75 mmol) as a solution in
THF (2 mL) and the mixture was stirred for 40 min. The appropriate 2-(l-trityl-lH-imidazol-
4—yl)benzaldehyde was added as a solution in THF (3 mL) drop wise over a period of 3 min.
The reaction was allowed to warm to RT and stirred overnight. The solvent was removed
under reduced pressure and the crude was diluted with saturated NH4C1 (10 mL) and water
(10 mL). The aqueous layer was extracted with CHzClz (2 x 20 mL) and the combined
organic fractions were washed with brine (15 mL), dried over NaZSO4 and concentrated under
reduced pressure to afford the crude product. To the crude residue was added AcOH (1 mL)
and MeOH (3 mL) and the solution was stirred at 90 0C for 2 h. After cooling to rt, the
solvent was distilled off and the crude was stirred in a mixture of sat’d K2C03 (5 mL) and
EtOAc (5 mL). The c layer was separated and the aqueous layer was extracted with
EtOAc (2 x 10 mL). The combined organic layers were washed with water, brine and dried
(NaZSO4) and the solvent evaporated under reduced pressure. The crude residue was purified
by flash column tography on silica gel to afford the following compounds.
Yield
# nd Name
l—(cyclohexen- 1 —(5H—
imidazo[5, l -a] isoindolyl)ethanone
1H NMR 1.64—1.68 (m, 4H), 2.23—2.33 (m, 4H), 3.12 (dd, 1H, J= 9.8, 17.8 Hz), 3.36
(dd, 1H, J= 3.2, 18.0 Hz), 5.72 (dd, 1H, J= 3.6, 7.6 Hz), 6.86—6.88 (m, 1H), 7.17 (s,
1H), 7.32 (d, 1H, J= 7.6 Hz), 7.38 (t, 1H, J= 7.4 Hz), 7.55 (d, 1H, .1 = 7.2 Hz), 7.65 (s,
Compound
1-(2,5-dimethylfuran-3 -y1)—2-(6-
fluoro—SH—imidazo[5, 1—a]isoind01—5—
y1)ethan0ne
H NMR 2.22 (s, 3H), 2.60 (s, 3H), 2.97 (dd, 1H, .1: 10.8, 18.4 Hz), 3.72 (d, 1H, .1:
18.2Hz), 5.86 (d, 1H, .1: 10.7 Hz), 6.11 (s, 1H), 6.93 (t, 1H, .1: 8.5 Hz), 7.16 (s, 1H),
.37 (m, 2H). 7.74 (s, 1H)
2—(6—fluoro-5H-imidazo[5, 1-
a]isoind01—5-y1)—1—(furan-2—
y1)ethan0ne
H NMR 3.16 (dd, 1H, .1: 10.5, 18.4 Hz), 3.85 (d, 1H, .1: 18.4 Hz), 5.86 (d, 1H, .1:
.5 Hz), 6.54 (s, 1H), 6.92 (t, 1H, .1: 8.9 Hz), 7.14 (s, 1H), 7.24—7.35 (m, 3H), 7.57 (s,
1H), 7.74 (s, 1H)
2—(6—fluoro-5H-imidazo[5, 1-
a]isoind01—5—y1)(1—methy1—1H—
imidazol-Z-y1)ethan0ne
1H NMR 3.56 (dd, 1H, J: 12.0, 20.0 Hz), 4.07 (s, 3H), 4.13 (d, 1H, J: 20.0 Hz), 5.86
(d, 1H, J: 12.0 Hz), 6.92 (t, 1H, J: 8.0 Hz), 7.09 (d, 1H, J: 8.0 Hz), 7.15 (s, 1H),
7.31—7.34 (m, 3H), 7.71 (s, 1H)
imidazo[5, 1-a]isoind01—5 -y1)— 1 —
(thiazolyl)ethan0ne
1H NMR 3.62 (dd, 1H, J: 9.7, 18.8 Hz), 3.92 (dd, 1H, J: 3.0, 18.9 Hz), 5.79 (d, 1H,
9.5 Hz), 7.18 (s, 1H), 7.26—7.28 (m, 1H overlap with CHC13), 7.36—7.40 (m, 2H), 7.55 (d,
1H, J: 7.4 Hz), 7.75 (s, 1H), 8.38 (s, 1H), 8.82 (s, 1H)
WO 42237
Yield
1-(4,4-difluorocyc10hexy1)—2—(6—
fluoro—SH—imidazo[5, 1 —a]isoind01—5—
y1)ethan0ne
H NMR 1.65 1.82 (m, 4H), 1.902.01 (m, 2H), 2.11—2.16 (m, 2H), 2.44—2.48 (m, 1H),
2.79 (dd, 1H, .1: 10.4 Hz, 18.4 Hz), 3.52 (dd, 1H, .1: 2 Hz, 18.4 Hz), 5.72 (d, 1H, .1:
.4 Hz), 6.92 (t, 1H, .1: 8.8 Hz), 7.15 (s, 1H), 7.28—7.35 (m, 2H), 7.58 (s, 1H)
1-(4,4-difluorocyclohexy1)(5H-
imidazo[5,1-a]isoind01—5 -y1)ethan0ne
H NMR 1.73—1.80 (m, 4H), 1.91—1.95 (m, 2H), .14 (m, 2H), 2.41—2.47 (m, 1H),
2.90 (dd, 1H, J= 9.4 Hz, 18.8 Hz), 3.21 (dd, 1H, J= 3.6 Hz, 18.4 Hz), 5.60 (dd, 1H, J=
3.4 Hz, 9.4 Hz), 7.13 (s, 1H), 7.22—7.28 (m, 2H), 7.36 (t, 1H, J= 7.2 Hz), 7.51 (d, 1H, J
——7.6 Hz), 7.57 (s, 1H)
2-(5H—imidazo[5, 1-a]isoind01—5 -y1)— 1 —
(4-methylenecyc10hexy1)ethan0ne
1H NMR 1.30—1.50 (m, 2H), 1.80—2.05 (m, 3H), 2.20—2.32 (m, 2H), 2.40—2.50 (m, 1H),
2.58—2.67 (m, 1H), 2.78—2.88 (m, 1H), 3.16—3.17 (m, 1H), 5.50—5.54 (m, 1H), 7.13—7.17
(m, 1H), 7.20—7.30 (m, 2H), 7.43—7.45 (m, 1H), 7.52 (s, 1H)
2—(6—fluoro—5H-imidazo[5, 1 -
a]isoind01—5—y1)-1—(4—
methylenecyc10hexy1)ethan0ne
1H NMR 1.30—1.60 (m, 2H), 1.90—2.10 (m, 3H), 2.32—2.35 (m, 2H), 2.50—2.60 (m, 1H),
2.60—2.72 (m, 1H), 2.76—2.84 (m, 1H), 3.52 (d, J: 18.4 Hz, 1H), 4.63 (s, 2H), 5.73 (d, J
=10.4 Hz, 1H), 6.91—6.96 (m, 1H), 7.20—7.30 (m, 2H), 7.43—7.45 (m, 1H), 7.52 (s, 1H)
Yield
Compound
2—(6—fluoro-5H-imidazo[5, 1-
OO] a]isoind01—5—y1)(1,4-
dioxaspiro[4.5]decan—8—y1)ethan0ne
H NMR (013301)) 1.48 1.91 (m, 6H), 2.35—2.65 (m, 2H), 3.58—3.65 (m, 1H), 3.91 (s,
4H), 5.79—5.82 (m, 1H), 7.01—7.07 (m, 1H), 7.16 (m, 1H), 7.42—7.45 (m, 2H), 7.70 (s, 1H)
2—(6—fluoro-5H-imidazo[5, 1-
a]isoind01—5—y1)—1—(4—
methylcyclohexyl)ethanone
1H NMR 0.80-0.95 (m, 3H), 1.24—1.40 (m, 2H), 1.40—1.68 (m, 5H), 1.70—2.00 (m, 2H),
2.40—2.55 (m, 1H), 2.72—2.84 (m, 1H), 3.48 (d, J= 18.4 Hz, 1H), 5.75 (d, J= 10.4 Hz,
1H), .95 (m, 1H), 7.15 (s, 1H), 7.26—7.38 (m, 2H), 7.62 (s, 1H)
2—(6—fluoro-5H-imidazo[5, 1-
a]isoind01—5—y1)—1—(4—
(iodomethylene)cyc10hexy1)ethan0ne
H NMR (CD3OD) 1.20—1.52 (m, 2H), 1.80—2.20 (m, 4H), 2.30—2.36 (m, 1H), 2.45—2.80
(m, 3H), 2.90—3.02 (m, 1H), .64 (m, 1H), 4.63 (s, 1H), 5.75—5.80 (m, 1H), 7.02—
7.08 (m, 1H), 7.15 (s, 1H), 7.42—7.47 (m, 2H), 7.65 (s, 1H).
uoro-5H-imidazo[5, 1-
a]isoind01—5 —y1)—1—(4—
methylcyclohexy1)ethan0ne
H NMR (CD3OD) 0.80—0.95 (m, 3H), 1.24—1.40 (m, 2H), 1.40-1.68 (m, 5H), 1.70—2.00
(m, 2H), 2.40—2.55 (m, 1H), .84 (m, 1H), 3.48 (d, J= 18.4 Hz, 1H), 5.49—5.59 (m,
1H), 7.10—7.18 (m, 2H), 7.60—8.00 (m, 1H)
Yield
Compound
2—(6—fluoro-5H-imidazo[5, 1 -
a]isoind01—5—y1)—1—(4—(propan—2—
e)cyc10hexyl)ethanone
H NMR 1.30— 1.52 (m, 2H), 1.64 (s, 6H), 1.70—1.81 (m, 2H), .98 (m, 2H), 2.52—
2.62 (m, 1H), 2.68—2.74 (m, 2H), 2.80 (dd, 1H, J: 18.5 Hz, 10.6 Hz), 3.50 (dd, 1H, J:
18.5 Hz, 2.2 Hz), 5.75 (d, 1H, J: 9.27 Hz), 6.90—6.96 (m, 1H), 7.17 (s, 1H), 7.32—7.36
(m, 2H), 7.59 (s, 1H)
1 (4-
(cyclopropylmethylene)cyclohexyl)—
2—(6—fluoro-5H-imidazo[5, 1 -
a]isoind01—5—y1)ethan0ne
1H NMR 0.24 (s, 2H), 0.67 (d, 2H, J= 7.8 Hz), 1.43-1.49 (m, 3H), 1.82-2.15 (m, 3H),
.28 (m, 1H), 2.50-2.62 (m, 1H), 2.75-2.85 (m, 2H), 3.52 (d, 1H, J= 18.6 Hz), 4.52
(d, 1H, J= 9.3 Hz), 5.75 (d, 1H J= 10.2 Hz), 6.89-6.95 (m, 1H), 7.16 (s, 1H), 7.25-7.36
(m, 3H), 7.59 (s, 1H)
1—(4—(2—(5H—imidazo[5,1—a]isoind01—
—y1)acety1)piperidiny1)—2,2-
dimethylpropan0ne
1H NMR 1.26 (s, 9H), 1.60 (m, 2H), 1.88 (m, 2H), 2.61 (m, 1H), 2.84 (m, 2H), 2.89 (dd,
1H, J: 9.39 Hz, 18.6 Hz), 3.22 (dd, 1H, J: 3.6 Hz, 18.3 Hz), 4.41 (m, 2H), 5.62 (dd,
1H, .1: 3.54 Hz, 9.45 Hz), 7.16 (s, 1H), 7.24 (m, 2H), 7.37 (m, 1H), 7.53 (d, 1H, J=
7.56 Hz), 7.59 (s, 1H)
2—(6—fluoro-5H-imidazo[5, 1 -
a]isoind01—5 -y1)— 1 -( 1 -methyl- 1H-
imidazol-S -y1)ethan0ne
H NMR 3.13—3.20 (m, 1H), 3.85—3.89 (m, 1H), 4.0 (s, 3H), 5.79 and 5.89 (two d, 1H, J
Yield
# Compound Name
= 10.4 Hz), 6.96 (t, 1H, J= 8.8 Hz), 7.20 (s, 1H), 7.33-7.38 (m, 2H), 7.62 (s, 1H), 7.74
and 7.81 (two 8, 3H)
N=\ 2—(5H—imidazo[5,1-a]isoind01—5-y1)
( 1 -methyl- 1H-imidazoly1)ethan0ne
1H NMR 3.42 (d, 1H, J: 9.9 Hz), 3.48 (d, 1H, J: 8.7 Hz), 3.75 (s, 3H), 5.75 (dd, 1H, J
= 3.4 Hz, 9.8 Hz), 7.26-7.19 (m, 1H), 7.14 (s, 1H), 7.35 (m, 2H), 7.41 (d, 1H, .1: 1.0
Hz), 7.52 (dd, 1H, J: 1.2 Hz, 7.35 Hz), 7.71 (s, 1H), 7.67 (d, 1H, .1: 1.2 Hz),
imidazo[5, 1 -a]isoind01—5 -y1)
(thiazol-S-yl)ethan0ne
H NMR 3.40 (dd, 1H, .1: 9.6 Hz, 18.4 Hz), 3.71 (dd, 1H, .1: 3.2 Hz, 18.0 Hz), 5.80
(dd, 1H, .1: 2.8 Hz, 9.2 Hz), 7.21 (s, 1H), 7.29 (d, 1H, .1: 7.2 Hz), .41 (m, 2H),
7.57 (d, 1H, .1: 8.0 Hz), 8.41 (s, 1H), 7.73 (s, 1H), 9.0 (s, 1H),
1-(1-acety1piperidinyl)(5H—
imidazo [5 ,1-a]isoindol-S-yl)ethan0ne
1H NMR 1.57 (m, 2H), 1.90 (m, 2H), 2.09 (s, 3H), 2.60 (m, 2H), 2.91 (m, 1H), 3.07—3.26
(m, 2H), 3.82 (m, 1H), 4.58 (m, 1H), 5.62 (m, 1H), 7.16 (s, 1H) 7.29 (m, 2H), 7.37 (m,
1H), 7.53 (d, 1H,J=10.4 Hz), 7.58 (d, 1H, J: 4.8 Hz)
2-(5H—imidazo[5, 1-a]isoind01—5 -y1)— 1 —
(1 -(thiophenecarb0ny1)piperidin
y1)ethan0ne
2012/033245
Compound
1—(4—(2—(5H-imidazo[5,1—a]isoind01—
—y1)acety1)piperidiny1)
phenylethanone
1H NMR 1.20—1.90 (m, 4H), 2.40—3.33(m, 5H), 3.73(s, 2H), 3.89 (d, 1H, .1: 13.5 Hz),
4.59 (d, 1H, .1: 13.5 Hz), 5.50—5.70 (m, 1H), 7.15—7.45 (m, 9H), 7.53 (d, 1H, .1: 7.5
Hz), 7.68 (d, 1H, .1: 7.8 Hz)
1—Cyclohexy1—3-(5H—imidazo[5, 1-
a]isoind01—5 -y1)propan—2—0ne
H NMR 0.85—1.35 (m, 5H), 1.55—1.175 (m, 5H), 1.80—1.95 (m, 1H), 2.25—2.38 (m, 2H),
2.70—2.80 (m, 1H), 3.16 (dd, 1H, J= 2.4, 14.8 Hz), 5.50—5.60 (m, 1H), 7.16 (s, 1H),
7.20—7.30 (m, 3H), 7.35 (t, 1H, J= 5.4 Hz), 7.41 (d, 1H, J= 5.4 Hz), 7.73 (s, 1H)
1—cyclohexy1—3—(6—fluoro—5H-
imidazo[5,1-a]isoind01—5-y1)propan-
/ N 78
g] 2—0ne
N 0
1H NMR 0.80—1.40 (m, 5H), 1.45—2.00 (m, 6H), 2.32 (t, 2H, .1: 9.3Hz), 2.80—2.60 (m,
1H), 3.46 (d, 1H, .1: 18.6 Hz), 5.72 (d, 1H, .1: 10.5 Hz), 6.92 (t, 1H, .1: 9.3 Hz), 7.18
(s, 1H), .40 (m, 2H), 7.71 (s, 1H)
2—(6—fluoro-5H-imidazo[5, 1 -
a]isoind01—5 —y1)— 1 —(4—
hydroxycyc10hexy1)ethan0ne
H NMR (mixture of cis and trans isomers) 1.25—1.77 (m, 6H), 1.90—2.06 (m, 3H), 2.34—
2.42 (m, 1H), 2.80 (dd, 1H, J = 10.8 8 Hz), 3.51 (d, 1H, J = 18.8 Hz), 3.60—3.62
and 3.97—4.01 (m, 1H), 5.73—5.76 (m, 1H), 6.93 (t, 1H, J = 8.4 Hz), 7.17 (s, 1H), 7.30—
7.37 (m, 2H), 7.59 and 7.62 (two 8, 1H)
Compound
1-cyclohexy1(SH-imidazo [5 ,1-
a]isoindol-5 —y1)ethanone
1H NMR 1.25 (m, 5H), 1.79 (m, 5H), 2.38 (m, 1H), 2.89 (dd, 1H, J: 18.0 Hz, 9.0 Hz),
3.18 (dd, 1H, J: 18 Hz, 3.0 Hz), 5.63 (m, 1H), 7.16 (s, 1H), 7.21-7.28 (m, 2H), 7.37 (t,
1H, J: 7.5 Hz), 7.53 (d, 1H, J: 6 Hz), 7.60 (s, 1H)
aThe compound was not characterized and was used as such for the next synthetic step
1-cyclohexy1(5H—imidazo[5 ,1-
a]isoindol—S—y1idene)ethanone
136 H NMR Indistinguishable mixture of E/Z isomers 1.26—1.48 (m, 8.9H), .94 (m,
13.7H), 2.58—2.62 (m, 0.6H), .38 (m, 1H), 6.40 (s, 0.4H), 6.60 (s, 0.53H), 7.15 (d,
0.8 Hz, J: 6.0 Hz), 7.25—7.28 (m merged with CHC13, 0.8H), 7.43—7.49 (m, 3H), 7.63—
7.67 (m, 2H), .77 (m, 3H), 7.93 (s, 1H), 8.06 (d, 1H, J: 8.0 Hz), 9.25 (s, 0.4H),
9.43 (s, 0.8 H)
(trans)-methy1 4-(2-(5H—imidazo[5, 1 -
a]isoindol—5—
y1)acety1)cyclohexanecarboxylate
1H NMR 1.38—1.49 (m, 4H), 1.95—2.11 (m, 4H), 2.27—2.32 (m, 1H), 2.27—2.42 (m, 1H),
2.91 (dd, J: 9.5, 18.5 Hz, 1H), 3.21 (dd, J: 3.5, 18.5 Hz, 1H), 3.67 (s, 3H), 5.63 (dd, J
= 3.3, 9.5 Hz), 7.17 (s, 1H), 7.22—7.29 (m, 2H), 7.38 (t, 1H, J: 7.5 Hz), 7.54 (d, 1H, J:
7.6 Hz), 7.60 (s, 1H)
2—(6—fluoro-5H—imidazo[5, 1-
a]isoindol-5 —y1)—1—(4—(propan—2—
N o
/ ,> y1idene)cyclohexy1)ethanone
1H NMR 1.30—1.52 (m, 2H), 1.64 (s, 6H), 1.70—1.81 (m, 2H), 1.85—1.98 (m, 2H), 2.52—
2.62 (m, 1H), 2.68—2.74 (m, 2H), 2.80 (dd, 1H, J = 18.5 Hz, 10.6), 3.50 (dd, 1H, J = 18.5
Yield
Compound Name
Hz, 2.2 Hz), 5.75 (d, 1H, J = 9.27 Hz), 6.90—6.96 (m, 1H), 7.17 (s, 1H), .36 (m,
2H), 7.59 (s, 1H)
2-(5H—imidaz0[5, oind01—5 —y1)—
1-(spiro[2.5]octany1)ethan0ne
1H NMR 0.18—0.30 (m, 4H), 0.90—0.98 (m, 2H), .87 (m, 6H), 2.38—2.53 (m, 1H),
2.91 (dd, 1H, J = 18.4, 9.60 Hz), 3.20 (dd, 1H, J = 18.47, 3.6 Hz), 5.58—5.65 (m, 1H),
7.15 (s, 1H), 7.21—7.27 (m, 2H), 7.36 (t, 1H, J = 7.60 Hz), 7.52 (d, 1H J = 7.60 Hz),
7.61 (s, 1H)
1—((trans)—4—((tert—
butyldimethylsilyl)0xy)cyclohexyl)-
2—(6—fluoro-5H-imidaz0[5,1-
141 nd01—5—y1)ethan0ne
1H NMR 0.028 ( s, 6H), 0.88 (s, 9H), 11.27—1.96 (m, 8H), 2.32—2.38 (m, 1H), 2.80 (dd,
1H, J = 18.8, 10.6 Hz), 3.48-3.57 (m, 2H), 5.75 (d, J = 9.3 Hz), 6.91-6.95 (m, 1H), 7.17
(s, 1H), 7.23—7.39 (m, 2H), 7.59 and 7.64 (two 5, 1H)
1—((trans)—4—(benzy10xy)cyclohexyl)-
2—(6—fluoro-5H-imidaz0[5, 1 -
a]isoind01—5—y1)ethan0ne
142 1H NMR 1.15—1.54 (m, 4H), 1.91—2.20 (m, 4H), 2.37—2.43 (m, 1H), 2.80 (dd, 1H, J =
18.5, 10.5 Hz), 3.31—3.36 (m, 1H), 3.51 (d, 1H, J = 18.6 Hz), 4.55 (s, 2H), 5.74 (d, 1H, J
= 10.3 Hz), 6.93 (t, 1H, J = 8.0 Hz), 7.17 (s, 1H), 7.29—7.39 (m, 7H), 7.59 and 7.78 (two
, 1H)
1—((trans)—4—(benzy10xy)cyclohexyl)-
2-(5H—imidaz0[5,1—a]isoind01—5—
y1)ethan0ne
H NMR 1.14—1.50 (m, 4H), 1.92—2.01 (m, 2H), 2.15—2.19(m, 2H), 2.34—2.43 (m, 1H),
2.90 (dd, 1H, J =18, 9 Hz), 3.19 (dd, 1H, J = 24, 6 Hz), 3.30—3.37 (m, 1H), 4.49 and 4.55
(two 5, 2H), 5.61 (dd, 1H, J =10.5, 4.5 Hz), 7.16—7.39 (m, 9H), 7.53 (d, 1H, J = 9 Hz),
Yield
# Compound Name
-7.62 (s, 1H)
N—((cis)—4—(2—(5H-imidazo[5, 1-
a]isoindol—5—
yl)acetyl)cyclohexyl)benzamide
1H NMR 1.25—1.34 (m, 2H), 1.53—1.63 (m, 2H), 1.98—2.08 (m, 2H), 2.20 (t, 2H, J: 11.6
Hz), 2.36 (t, 1H, J: 12.2 Hz), 2.90 (dd, 1H, J= 9.4, 18.6 Hz), 3.25 (dd, 1H, J= 3.2, 18.4
Hz), 3.93-4.00 (m, 1H), 5.63 (dd, 1H, J= 3.2, 9.2 Hz), 6.32 (d, 1H, J= 6.8 Hz), 7.19 (s,
1H), 7.26—7.35 (m, 2H, merged with form), 7.3 8—7.43 (m, 3H), 7.48 (d, 1H, J= 7.2
Hz), 7.55 (d, 1H, J= 7.6 Hz), 7.71 (s, 1H), 7.76 (d, 2H, J= 7.6 Hz)
N—((trans)—4—(2—(5H-imidazo[5, 1 -
a]isoindol—5—
yl)acetyl)cyclohexyl)benzamide
1H NMR 1.19—1.36 (m, 2H), 1.48—1.65 (m, 2H), .07 (m, 2H), 2.18—2.23 (m, 2H),
2.35 (tt, 1H, J = 3.2, 12.2 Hz), 2.90 (dd, 1H, J= 9.5, 18.4 Hz), 3.22 (dd, 1H, J= 3.6, 18.4
Hz), 3.92-3.99 (m, 1H), 5.62 (dd, 1H, J= 3.4, 9.4 Hz), 6.23 (d, 1H, J= 7.6 Hz), 7.23-
7.32 (m, 3H, merged with chloroform), 7.34—7.42 (m, 3H), 7.46—7.50 (m, 1H), 7.54 (d,
1H, J= 7.6 Hz), 7.63 (s, 1H), 7.76 (d, 2H, J= 7.6 Hz)
1—(4—(2—
hydroxyethylidene)cyclohexyl)
(5H—imidazo[5,1—a]isoindol—5—
yl)ethanone
1H NMR 1.26—1.50_(m, 2H), 1.70—2.30 (m, 4H), 2.31—2.40 (m, 1H), 2.41—2.75 (m, 2H),
2.76-2.90 (m, 1H), 3.15-3.25 (m, 1H), .13 (m, 1H), 5.25-5.40 (m, 1H), 5.51-5.60
(m, 1H), 7.12 (s, 1H), 7.13-7.40 (m, 2H), 7.48-7.60 (m, 3H)
O tert—butyl 3 —(2-(5H—imidazo[5, 1 -
NJ40 a]isoindol—5—yl)acetyl)azetidine— 1 -
k carboxylate
1H NMR 1.38 (s, 9H), 2.85—2.92 (m, 1H), 3.20—3.25 (m, 1H), 3.44—3.48 (m, 1H), 3.65—
Yield
# Compound Name
3.70 (m, 2H), 4.01—4.28 (m, 2H), 5.63—5.66 (m, 1H), 7.16 (s, 1H),7.21-7.31 (m, 2H),
7.36—7.40 (m, 1H), 7.53—7.55 (m, 1H), 7.66 (s, 1H)
imidazo[5, 1 -a]isoind01—5 —y1)_ 1 _
(pyridinyl)ethan0ne
1H NMR 3.60 (dd, J = 10, 19.2Hz, 1H), 3.91 (dd, J = 3.2, 19.2Hz, 1H), 5.65 (dd, J = 3.2,
Hz, 1H), 7.08 (s, 1H), 7.13—7.17 (m, 1H), 7.25—7.30 (m, 2H), 7.38—7.45 (m, 2H), 7.66
(s, 1H), 7.78—7.80 (m, 1H), 8.05 (d, J = 8 Hz, 1H), 8.51—8.53 (m, 1H)
2-(5H—imidazo[5, 1 -a]isoind01—5 —y1)_ 1 _
(pyridin-3 -y1)ethan0ne
H NMR 3.57—3.67 (m, 1H), 3.80—3.95 (m, 1H), 6.01—6.05 (m, 1H), 7.27—7.73 (m, 6H),
8.29—8.36 (m, 1H), 8.61(s, 1H), 8.86 (d, J = 3 Hz, 1H), 9.18 (s, 1H)
2-(5H—imidazo[5, 1 -a]isoind01—5 —y1)_ 1 _
iny1)ethan0ne
1H NMR .49 (dd, J = 9.2, 18.8 Hz, 1H), 3.76 (dd, J = 3.6, , 1H), 5.83 (dd, J
= 3.2, 9.2 Hz, 1H), 7.20 (s, 1H), 7.28—7.32 (m, 1H), 7.38—7.45 (m, 2H), 7.58—7.60 (m,
1H), 7.74—7.75(m, 2H), 7.81 (s, 1H), 8.84—8.86 (m, 2H)
2-(5H—imidazo[5, 1 -a]isoind01—5 -y1)— 1 —
(trifluoromethyl)cyc10hexy1)ethan0ne
H NMR 1.55—1.81 (m, 5H),_2.08—2.29 (m, 4H), 2.58-2.62 (m, 1H), 2.94 (dd, J = 9, 18
Hz, 1H), 3.22 (dd, J = 6, 18 Hz, 1H), 5.68 (dd, J = 6, 9 Hz, 1H), 7.18-7.57 (m, 5 H), 7.81
and 7.83 (two 8, 1H)
Yield
Compound
2—(6—fluoro-5H—imidazo[5, l-
a]isoindol—5—yl)— 1 —(4— 53
(trifluoromethyl)cyclohexyl)ethanone
H NMR 1.51 1.83 (m, 6H), 1.952.21 (m, 3H), 2.58—2.62 (m, 1H), 2.79 (dd, J = 9, 18
Hz, 1H), 3.46—3.55 (m, 1H), 5.73—5.79 (m, 1H), 6.89—6.98 (m, 1H), 7.20—7.38 (m, 4H),
7.71 (s, 1H)
1—((cis)—4—(benzyloxy)cyclohexyl)
(6—fluoro—5H—imidazo[5, l—a]isoindol—
-yl)ethanone
H NMR 1.67—2.04 (m, 8H), 2.39—2.45 (m, 1H), 2.79 (dd, 1H, J = 18.6, 10.6 Hz), 3.50
(dd, 1H, J = 16.4, 2.4 Hz), 3.60—3.65 (m, 1H), 4.49 and 4.55 (two s, 1H), 5.76 (d, 1H, J =
8.8 Hz), 6.91—6.95 (m, 1H), 7.17 (s, 1H), 7.26—7.35 (m, 7H), 7.63 (s, 1H)
Example 24 l-(Cyclohex-3 -enyl)(6-fluoro-5H-imidazo[5, l -a] isoindol-5 -yl)ethanone
F F
PTSA
OH O
—> ‘
/N3 716 /N3 0
71 (270 mg, 0.86 mmol) was ved in benzene (7 mL) and p—toluenesulfonic acid
(444 mg, 2.58 mmol) was added. The reaction mixture was heated at 100 CC for 48 h and
concentrated. The residue was basified with aqueous potassium carbonate on (5 mL).
The aqueous solution was extracted with ethyl e (2 x 20 mL). The combined organic
layers were washed with water, brine, dried over NaZSO4, filtered and concentrated. The
residue was purified by flash column chromatography to afford the title compound 155 as
yellow gel (218 mg, 86%). 1H NMR: .71 (m, 1H), 1.88—2.40 (m, 5H), 2.62—2.67 (m,
1H), 2.74—2.87 (m, 1H), 3.47—3.58 (m, 1H), 5.66—5.75 (m, 3H), 6.91 (t, 1H, J= 8.9 Hz), 7.15
(s, 1H), 7.26—7.35 (m, 2H), 7.62 (d, 1H, J= 9.8 Hz).
Example 25 General Procedure for the Reduction of imidazo[5,l-a]isoindol
yl)ethanones to 2-(5H-imidazo[5, l-a]isoindolyl)ethanols.
X\\ X\\
\ / \ /
R R
N N HO
/ O
,) / /)
N N
To a solution of the appropriate ketone (9-18, 47-72, 136-153, 155, 1256, 1287, 1300,
1306, 1326, 1328, 1334, 1348 or 1353) (0.25 mmol) in MeOH (2 mL) at 0 0C, was added
NaBH4 (0.75 mmol) and the solution was allowed to stir for l h. The solvent was removed
under reduced pressure and 2M HCl (2 mL) was added to the crude. The solution was
allowed to stir for 10 min and was made basic by satd. K2CO3 solution. The aqueous layer
was extracted with CH2C12 (3 x 5 mL). The combined organic layers were washed with brine,
dried (MgSO4) and concentrated under reduced pressure to afford the crude residue. The
crude was purified by column chromatography using 1—10% MeOH:DCM nt to afford
the following compounds.
Yield
Compound Name
2-(6-chloro-5H-imidazo[5, l -
a] isoindolyl)— l -cyclohexylethanol
1H NMR (a mixture of diastereomers) 0.96—1.35 (m, 6H), 1.60—1.86 (m, 5H), 2.10 (m,
1H), .69 (m, 1H), 3.58—3.69 (m, 1H), 5.31 and 5.59 (two dd, 1H, J]: 6.0 Hz, 2.80
Hz, J2 = 10.4 Hz, 2.80 Hz), .19 (m, 2H), 7.28 (m, 1H), 7.41 (t, 1H, J: 5.4 Hz),
7.82 and 7.94 (two s, 1H)
l-cyclohexyl(5H-imidazo[5, l -
N OH a] isoindolyl)ethanol
1304 N
1H NMR (a mixture of reomers) 1.10—1.37 (m, 6H), 1.66—1.80 (m, 5H), 2.05 (m,
2H), 2.15 (m, 1H), 3.72 (m, 1H), 5.36 and 5.46 (two m, 1H), 7.16 (s, 1H), 7.25 (m,lH),
7.34 (m, 1H), 7.43 (d, 1H, J: 7.6 Hz), 7.54 (d, 1H, J: 7.6 Hz), 7.80 (s, 1H)
Yield
# Compound Name
(I)-
o”N+
O O 2—(5H—imidazo[5,1—a]isoindol—5—y1)—1—
(2-mtropheny1)ethanol
N OH
1327 I />
1H NMR (a mixture of diastereomers) 2.29 (m, 1H), 2.61 (m, 1H), 5.44 (m, 1H), 5.71
(dd, 1H, J: 9.0 Hz, 4.5 Hz), 7.08 (s, 1H), 7.27 (m, 2H), 7.34 (m,1H), .53 (m, 3H),
7.68 (m, 1H), 7.95 (m, 2H)
0 ON+O- 2-(5H-imidazo[5,1-a]isoindoly1)-1—
I N) OH ('3' (3-nitropheny1)ethanol
1307 N
1H NMR (a mixture of diastereomers) 2.32-2.40 (m, 1H), 2.48—2.58 (m, 1H), 5.06—5. 11
(m, 1H), 5.41 and 5.61 (two m, 1H), 7.09 (s, 1H), 7.30—7.43 (m, 2H), 7.48—7.57 (m, 3H),
7.64—7.72 (m, 2H), 8.12—8.19 (m, 2H)
tert-butyl hydroxy(5H—
o[5,1-a]isoindol—5— 50
y1)ethy1)pheny1)carbamate
1329
H NMR (a mixture of diastereomers) 1.50 and 1.55 (two 5, 9H), 2.50 and 2.78 (two m,. .
2H), 5.02 and 5.07 (two m, 1H), 5.19 and 5.56 (two m, 1H), 6.93—7.02 (m, 2H), 7.12 (d,
1H, J: 8.0 Hz), 7.24 (m, 2H), 7.36 (m, 2H), 7.49 (d, 1H, J: 7.6 Hz), 7.71 (br s, 1H),
7.80 and 7.85 (two 5, 1H, J= 8.0 Hz), 8.12 and 8.45 (two 5, 1H)
O O \fl/OK tert—butyl (4—(1—hydroxy—2—(5H—
imidazo[5,1-a]isoindol—5— 81
N> OH
I y1)ethy1)pheny1)carbamate
1302 /
1H NMR (a mixture of diastereomers) 1.50 (s, 9H), 2.28—2.41 (m, 2H), 4.98—5.03 (m,
1H), 5.25 and 5.55 (two m, 1H), 6.55 and 6.61 (two 5, 1H), 7.12—7.54 (m, 7H), 7.66 and
7.78 (two 5, 1H)
WO 42237
Yield
Compound Name
go”W0 tert-butyl (3-(1 -hydroxy(5H-
imidazo[5, 1 a—jlisoindol—5— 52
N OH
I / y1)ethy1)pheny1)carbamate
1367 ON>
1H NMR (a e of diastereomers) (MeOH—d4) 1.51 (s, 9H), 2.33—2.57 (m, 2H), 4.93—
4.96 (m, 1H), 5.36 and 5.49 (two m, 1H), 7.00—7.06 (m, 2H), 7.19—7.40 (m, 4H), 7.48 (s,
1H), 7.53—7.57 (m, 2H), 7.72 (s, 1H)
0 O imidazo[5,1-a]isoindoly1)
N OH phenylethanol
1349 l />
H NMR (a mixture of diastereomers) 2.30 (m, 1H), 2.41 (m, 1H), 5.08 (m, 1H), 5.31 (m,
1H), 7.08 (m, 1H), 7.20—7.51 (m, 9 H), 7.63 (s, 1H).
tert-butyl 4-(1-hydroxy(5H—
imidazo[5,1—a]isoindol—5— 83
I N> OH y1)ethy1)piperidinecarboxy1ate
1363
1H NMR (a mixture of diastereomers) 1.26 (m, 2H), 1.44 (s, 9 H), 1.47-1.59 (m, 2H),
1.76 (m, 1H), 206—2.11 (m, 1H), 2.14—2.20 (m, 1H), 2.64 (m, 2H), 3.73 and 3.80 (two m,
1H), 4.16 (m, 2H), 5.37 and 5.51 (two m, 1H), 7.16 (s, 1H), 7.22 (m, 1H), 7.32—7.41 (m,
2H), 7.54 (d, 1H, J: 4.0 Hz), 7.79 and 7.81 (two 5, 1H)
1—cyclohexy1—2—(6—fluoro—5H—
85 OH imidazo[5,1-a]isoindoly1)ethanol
1357
1H NMR (a mixture of diastereomers) 0.98—1.39 (m, 6H), 1.65—1.79 (m, 5H), .07
(m, 1H) 2.34—2.50 (m, 2H), 3.54—3.73 (m, 1H), 5.46 and 5.67 (two dd, 1H, J; =, 3.0, 8.0
Hz, J2 = 3.0, 10.4 Hz), 6.93 (t, 1H, J: 8.0 Hz), 7.17 (d, 1H, J: 7.17 Hz), 7.30—7.37 (m,
2H), 7.82, 7.88 (two 5, 1H)
Yield
# Compound Name
2-(7-chloro-5H-imidazo[5,1-
OH a]isoindoly1)—1-cyclohexy1ethanol
I NV}
1359
1H NMR (a mixture of diastereomers)1.00-1.28 (m, 5H), 1.37—1.40 (m, 1H), 1.66—2.01
(m, 5H), .0 (m, 1H) 2.12—2.23 (m, 1H), 3.71—3.75 (m, 1H), 7.15 (s, 1H), 7.33 (d,
1H, J: 8.0 Hz), 7.45 (d, 1H, J: 8.0 Hz), 7.79, 7.82 (two 5, 1H)
1-cyclopenty1—2-(5H—imidazo[5,1-
/ '1) HO a]isoindoly1)ethanol
1362
1H NMR (a mixture of diastereomers) 1.11-1.41 (m, 2H), .70 (m, 4H), 1.83—2.17
(m, 4H), 3.74—3.79 (m, 1H), 5.38, 5.49 (one t and one d, 1H, J]: 6.0 Hz, J2 = 6.0
Hz), 7.18 (s, 1H), 7.25 (d merged with CHC13, 1H), 7.38 (t, 1H, J: 7.2 Hz), 7.46 (d, 1H, J
= 7.6 Hz), 7.55 (d, 1H, J: 7.6 Hz), 7.84 (s, 1H)
1—(cyclohex— 1 -en- 1 —y1)(5H-
I N> imidazo[5,1-a]isoindoly1)ethanol
1375 H NMR (a mixture of diastereomers) 1.47—1.68 (m, 3H), 1.73—1.82 (m, 1H), 1.93—2.14
(m, 4H), 2.18—2.22 (m, 1H), 2.33—2.40 (m, 2H), 4.36 (t, 1H, J: 7.0 Hz), 5.26, 5.44 (onet
and one dd, 1H, J2 = 6.0 Hz, J2 = 10.0 Hz), 5.71, 5.72 (two 5, 1H), 7.15, 7.18 (two, 5,
1H), 7.2—7.26 (m, 1H), 7.34, 7.38 (two d, 1H, J]: 6.8 Hz, J2 = 7.27 Hz), 7.43 (d, 1H, J:
7.6 Hz), 7.54 (d, 1H, J: 7.6 Hz), 7.81, 7.86 (two 5, 1H)
1-(3 opheny1)(5H—imidazo[5 ,1-
a]1somdol—5—y1)ethanol
1343 / 3 HO
1H NMR (a mixture of diastereomers) 2.18-2.52 (m, 2H), 5.25—5.40 (m, 1H), 5.46—5.60
(m, 1H), 7.07 (s, 1H), 7.15—7.55 (m, 7H), 7.69 (d, 1H, J: 8.0 Hz), 7.79 (s, 1H)
2012/033245
Yield
Compound Name
1-(2-chloropheny1)(5H—imidazo[5 1-
/ HO a]isoindoly1)ethanol
1336 N
1H NMR (a mixture of diastereomers) 2.20—2.50 (m, 2H), 5.0—5.08 (m, 1H), 5.26—5.38 (m,
1H), 7.05 (s, 1H), 7.20—7.45 (m, 7H), 7.45 (d, 1H, J: 7.6 Hz), 7.52 (d, 1H, J: 7.6 Hz)
7.68 (s, 1H)
2-(8-chloro-5H-imidazo[5,1-
N OH a] isoindoly1)— 1 -cyclohexy1ethanol
1374 / />
1H NMR (a mixture of reomers) (MeOH—d4) 1.00—2.30 (m, 13H), 3.60—3.70 (m,
1H), 5.35 and 5.50 (two m, 1H), 6.95—7.08 (m, 1H), 7.16—7.88 (m, 4H)
1—cyclohexy1—2—(8—fluoro—5H—
/ N> OH o[5,1-a]isoindoly1)ethanol
1376 N
“H NMR (a mixture of diastereomers) (MeOH—d4) 1.00—2.30 (m, 13H), 3.50—3.57 (m,
1H), 5.35 and 5.50 (m, 1H), 7.18—7.50 (m, 3H), 7.60—7.65 (m, 1H), 7.92 and 7.98 (two 5,
F ;> 2—(6—fluoro-5H—imidazo[5, 1-
a]isoindolyl)(1,4— 90
/ 3 OH dioxaspiro[4.5]decan-8—y1)ethanol
1378
1H NMR (a mixture of diastereomers) (MeOH—d4) 1.31-1.52 (m, 5H), 1.60—1.63 (m, 1H),
1.71—1.78 (m, 3H), 1.86—2.07 (m, 1H), 2.43—2.48 (m, 1H), 3.48—3.64 (m, 1H), 3.90 (s, 4H),
.57 and 5.69 (two m, 1H), 7.00—7.06 (m, 1H), 7.18 (d, 1H, J = 11.6 Hz), 7.41—7.44 (m,
2H), 7.94—8.00 (m, 2H)
2012/033245
Yield
Compound Name
2-(5H-imidazo[5,1-a]isoindoly1)
/ N (tetrahydro-2H-pyrany1)ethanol
1358
1H NMR (a mixture of diastereomers)1.39-1.51 (m, 2H), 1.59—1.65 (m, 1H), 1.71—1.75
(m, 1H), 2.11—2.17 (m, 1H), 3.32—3.39 (m, 3H), 3.69—3.73 (m, 1H), .05 (m, 3H),
.39 and 5.49 (two m, 1H), 7.17 (s, 1H), 7.23—7.28 (m, 1H), 7.33—7.44 (m, 2H), 7.55 (d,
1H, J: 8 Hz), 7.84 (s, 1H)
\O 1-cyclohexy1(9-methoxy-5H—
/ N imidazo[5,1-a]isoindoly1)ethanol
1372
H NMR (a mixture of diastereomers) (CD3OD) 1.05-1.11 (m, 1H), 1.13-1.33 (m, 4H),
.81 (m, 5H), 2.01—2.08 (m, 1H), 3.57 and 3.67 (two m, 1H), 3.95 (s, 3H), 5.40 and
.47 (two m, 1H), 6.81 and 6.83 (two d, 1H, J= 8 Hz), 6.90 and 6.97 (two d, 1H, J= 7.6
Hz), 7.04 and 7.05 (two 5, 1H), 7.12—7.17 (m, 1H), 7.92 and 7.99 (two 5, 1H).
1-(2,5-dimethy1furan-3 -y1)(6—fluoro—
5H—imidazo[5,1-a]isoindol—5— 81
anol
1352
1H NMR (a mixture of diastereomers)1.89—1.96, 2.37—2.45, 2.53—2.59, 2.77—2.83 (four m,
2H), 2.11, 2.17 (s, 3H), 2.20, 2.22 (two 5, 3H), 4.79—4.88 (m, 1H), 5.36—5.68, 5.63—5.64
(two m, 1H), 5.94, 5.97 (two 5, 1H), 6.87—6.97 (m, 1H), 7.15, 7.21 (two 5, 1H), 7.32—7.38
(m, 2H), 7.74, 7.88 (two 5, 1H)
O 2-(6-fluoro-5H—imidazo[5, 1 -
1393 \ 88
N a] isoindol-5 -y1)(furany1)ethanol
Yield
# Compound Name
1H NMR (a mixture of diastereomers)1.99—2.06, 2.36—2.43 (two m, 1H), 2.77—2.80, 2.92—
2.98 (two m, 1H), 3.72 (d, 1H, J: 11.0 Hz), 5.02—5.08 (m, 1H), 5.39—5.40, 5.67—5.69 (two
m, 1H), 6.27 (t, 1H, J: 6.4 Hz), 6.31 (s, 1H), 6.93 (s, 1H, J: 9.2 Hz), 7.08 (d, 1H, J:
12.2 Hz), 7.26—7.36 (m, 2H), 7.77, 7.86 (two 5, 1H)
2—(6—fluoro-5H—imidazo[5, 1-
OH a]isoindoly1)—1-(1-methy1—1H- 81
/ N
/ N / imidazoly1)ethanol
1394 N N—
1H NMR (a e of diastereomers)2.43-2.51, 2.81—2.85, 2.99—3. 15 (three m, 2H), 3.69
(s, 3H), 5.00—5.08 (m, 1H), 5.38—5.40, 5.67—5.69 (two m, 1H), 6.77 (s, 1H), 6.79 (s, 1H),
6.91 (t, 1H, J: 8.9 Hz), 7.07 (s, 1H), 7.28—7.33 (m, 2H), 7.79 (s, 1H)
\ S 2-(5H—imidazo[5,1-a]isoindol-5—y1)—1—
/ HO (thiazoly1)ethanol
1390 N
1H NMR(a mixture of reomers)2.14-2.21, 2.49—2.58, 2.68—2.82 (m, 2H), 5.23—5.53
(m, 2H), 7.11 (s, 1H), 7.21 (s, 1H), 7.25-7.28 (m, 1H, overlap with CHC13), 7.37 (t, 1H, J
= 7.5 Hz), 7.47—7.54 (m, 2H), 7.74 (s, 1H), 8.79 (s, 1H)
1-(4,4-difluorocyclohexy1)(5H—
/ N imidazo[5,1-a]isoindoly1)ethanol
N?! F
1407
1H NMR (a mixture of diastereomers)1.26—1.36 (m, 3H), 1.63—1.97 (m, 5H), .08
(m, 3H), 3.69—3.72 (m, 1H), 5.02 and 5.12 (two d, 1H, J= 6.0 Hz), 5.34—5.53 and 5.41—
.43 (two m, 1H), 7.10 and 7.12 (two 5, 1H), 7.25 (t, 1H, J= 7.4 Hz), 7.36 (t, 1H, J= 7.4
Hz), 7.54—7.58 (m, 2H), 7.91 and 7.93 (two 5, 1H
—difluorocyclohexy1)—2—(6—fluoro—
5H—imidazo[5,1—a]isoindol—5— 78
y1)ethanol
1H NMR (a mixture of diastereomers) d6): 1.21-1.29 (m, 3H), 1.56-1.72 (m, 4H),
1.88—1.96 (m, 3H), 2.28 and 2.32 (two t, 1H, J= 5Hz), 3.41—3.44 and 3.62—3.65 (two m,
1H), 4.73 and 5.17 (two d, 1H, J= 8.2 Hz), 5.56—5.59 and 5.61—5.64 (two m, 1H), 7.03—
7.17 (m, 2H), 7.39—7.44 (m, 2H), 7.91 and 7.95 (two 5, 1H)
‘ 1—(cyclohex—3—eny1)—2—(6-fluoro-5H-
imidazo[5 ,1-a]isoindol-5 -y1)ethanol
1414
1H NMR (a mixture of diastereomers)1.21-1.42 (m, 2H), 1.62-1.83 (m, 4H), 1.93—2.15
(m, 7H), 2.30—2.44 (m, 1H), 2.6 (br s 3.67—3.72 (m, 1H), 3.77—3.82 (m, 1H), 5.49 (q,
, 1H),
1H, J: 5.3 Hz), 5.64—5.70 (m, 3H), 6.92—6.96 (m, 2H), 7.16—7.19 (m, 2H), 7.31—7.38 (m,
3H), 7.77—7.79 (m, 1H), 7.88 (d, 1H, J: 3.6 Hz), 7.91 (s, 1H)
imidazo[5, 1 -a]isoindoly1)— 1 —
(4-methy1enecyclohexy1)ethanol
H NMR (a mixture of diastereomers)1.11-1.20 (m, 2H), 1.49-1.55 (m, 1H), 1.74—1.78
(m, 1H), 1.90—2.10 (m, 4H), 2.16—2.23 (m, 1H), 2.31—2.38 (m, 2H), 3.74—3.77 and 3.80—
3.85 (two m, 1H), 4.62 (d, 2H, J= 0.8 Hz), 5.37 and 5.48(t and dd, 1H, J= 6 Hz and J= 3
Hz, 10.4 Hz), 7.18 (s, 1H), 7.23 (dd, 1H, J= 1.2 Hz, 7.6 Hz), 7.37 (t, 1H, J= 7.6 Hz),
7.43 (d, 1H, J= 7.6 Hz), 7.55 (d, 1H, J= 7.6 Hz), 7.77 and 7.79 (two 5, 1H)
uoro-5H—imidazo[5, 1-
a]isoindoly1)—1—(1,4— 90
dioxaspiro[4.5]decany1)ethanol
N HO
1381
H NMR (a mixture of diastereomers) (CD3OD) .00 (m, 2H), 1.3 8—1.60 (m, 1H),
1.70—1.80 (m, 1H), 1.87—2.09 (m, 6H), 3.30—3.34 and 3.53—3.78 (two m, 1H), 5.56—5.58
and 5.69—5.71 (two m, 1H), 7.00—7.04 (m, 1H), 7.42 and 7.62 (m and s, 2H), 7.93 and 8.00
(two 5, 1H)
2012/033245
Yield
Compound Name
2—(6—fluoro-5H—imidazo[5, 1-
a]isoindol—5—yl)—1—(4— 68
methylcyclohexy1)ethanol
1387
H NMR (a mixture of diastereomers)0.81—0.95 (m, 3H), 1.20—1.83 (m, 10H), 1.85—2.03
(m, 1H), 2.35—2.52 (m, 1H), 3.45—3.80 (m, 1H), .60 and 5.65—5.71 (two m, 1H),
.06 (m, 1H), 7.14 and 7.18 (two 5, 1H), 7.30—7.42 (m, 2H), 7.93 and 7.98 (two 5,
2—(6—fluoro-5H—imidazo[5, 1-
' a]isoindol—5—yl)—1—(4— 77
/ /N HO (iodomethylene)cyclohexy1)ethanol
1398 N
1H NMR (a mixture of diastereomers)0.92-1.45 (m, 2H), 1.54-1.76 (m, 2H), 1.80-2.11
(m, 3H), 2.33—3.10(m, 4H), 3.59—3.90 (m, 1H), 4.60 (s, 1H), 5.45—5.81 (m, 1H), 6.91—6.95
(m, 1H), 7.16 (s, 1H), 7.26—7.31 (m, 2H), 7.81—7.83 (m, 1H)
2—(9—fluoro-5H—imidazo[5,1-
F a]isoindol—5—y1)—1—(4— 35
/ N
,) HO cyclohexy1)ethanol
1413 N
H NMR (a mixture of reomers) ) 0.75—0.96 (m, 3H), 1.00—1.25 (m, 1H),
1.28—1.74 (m, 9H), 2.01—2.14(m, 2H), 3.67—3.80 (m, 1H), 5.49—5.59 (m, 1H), 7.10—7.18
(m, 2H), 7.60—8.00 (m, 1H)
F 2—(6—fluoro-5H—imidazo[5, 1-
a]isoindoly1)(4-(propan-2—
/ N) HO ylidene)cyclohexy1
N/ )ethanol
1411
H NMR (a mixture of diastereomers)1.01-1.06 (m, 2H), 1.46—1.57 (m, 2H), 1.63 (s, 6H),
1.68—1.75 (m, 2H), 1.82—1.96 (two m, 1H), 2.03—2.11 (m, 1H), 2.32—2.39 (two m
, 1H),
2.45—2.51 and 2.66—2.75 (two m, 2H), 3.65—3.75 (m, 1H), 5.44—5.65 (two m, 1H), 6.91 (t,
1H, J= 8.7 Hz),7.16 and 7.17 (two 5, 1H), 7.28—7.36 (m, 2H), 7.80 and 7.87 (two 5, 1H)
Yield
# Compound Name
F 1—(4—
/ (cyclopropylmethylene)cyclohexy1)—2—
/ N (6—fluoro—5H—imidazo[5,1-a]isoindol-
N/ 5—y1)ethanol
1410
H NMR(a mixture of diastereomers)0.24 (s, 2H), 0.65 (d, 2H, J = 7.4 Hz), 1.12-1.20 (m,
2H), 1.44—1.54 (m, 2H), 1.71—2.03 (m, 6H), 2.34—2.54 (two m ,1H), 2.72—2.84 (m, 1H),
3.63—3.80 (m, 1H), 4.48 (d, 1H, J: 9.0 Hz), 5.43—5.67 (two m, 1H), 6.81—6.94 (m, 1H),
7.15 (s, 1H), .30 (m, 3H), 7.80 and 7.88 (two 5, 1H)
NJS< 1—(4—(1—hydroxy—2—(5H—imidazo[5,1—
a] isoindol-5 -y1)ethy1)piperidiny1)- 77
/ '1) HO 2,2-dimethy1propanone
1392
H NMR(a mixture of reomers)1.24 (s, 9H), 1.28 (m, 2H), 1.60 (m, 2H), 2.13—1.86
(m, 3H), 2.70 (m, 2H), 3.78 (m, 1H), 4.46 (m, 2H), 5.53 and 5.38 (two m, 1H), 7.12 (s,
1H), 7.21 (m, 1H), 7.33 (m, 1H), 7.42 (d, 1H, J: 7.5 Hz), 7.52 (d, 1H, J: 7.5 Hz), 7.81
and 7.79 (two 5, 1H),
\ 2—(6—fluoro-5H—imidazo[5, 1-
\:7LN ahyfindthad}1{1qnmhyL1hL 44
/ AN HO ol—5—y1)ethanol
1409
1H NMR(a mixture of diastereomers)1.92-2.42 (three m, 1H), 2.72-3.10 (three m, 1H),
3.72 (s, 3H), 4.90—5.10 (three m, 1H), 5.42—5.76 (three m, 1H), 6.77—6.92 (m, 2H), 7.07
and 7.13 (two 5, 1H), 7.25—7.37 (m, 3H), 7.82, 7.88 and 7.94 (three 5, 1H)
N=\ 2-(5H-imidazo[5,1-a]isoindoly1)
\ N\
(1-methy1—1H—1m1dazoly1)ethanol. .
1389
H NMR (a mixture of diastereomers)2.01, 2.51, 2.67 (three m, 2H), 3.61 (s, 3H), 5.09
and 5.00 (two m, 1H), 5.53 and 5.33 (two m, 1H), 6.75 and 6.70 (two 5 7.11
, 1H), (s,
1H), 7.25—7.16(m, 2H), 7.32 (m, 1H), 7.37 (s, 1H), 7.49 (t, 1H, J= 7.80 Hz), 7.88 and
7.67 (two 5, 1H),
Yield
# nd Name
:WN imidazo[5,1-a]isoindoly1)
/ 3 (thiazoly1)ethanol
1391 N
1H NMR (a mixture of diastereomers)1.84, 2.03, 2.45, 2.51, 2.66, (five m, 2H), 5.29 5.41,
.55 (three m, 2H), 7.06—7.28 (m, 2H), 7.37 (t, 1H, J: 7.5 Hz), 7.41 (d, 1H, J: 7. 5H2),
7.52 (d, 1H, J: 7.5 Hz), 7.71, 7.73 (two 5, 1H), 7.83 (s, 1H), 8.70, 8.71 (two 5, 1H),
0 1-(4-(1-hydroxy(5H-imidazo[5, 1-
N a] isoindoly1)ethy1)piperidin 93
/ 5 HO y1)ethanone
1385
1H NMR (a mixture of diastereomers) 1.28 (m, 2H), 1.62 (m, 2H), 1.83 (m, 1H), 2.04 and
2.06 (two 5, 3H), 2.19 (m, 1H), 2.47 (t, 1H, J: 12.4 Hz), 3.00 (t, 1H, J: 13.1 Hz), 3.74
(m, 1H), 3.84 (t, 1H, J: 15.5 Hz), 4.68 (d, 1H, J: 14.6 Hz), 5.37 and 5.51 (two m, 1H),
7.15 (s, 1H), 7.23 (m, 1H), 7.39 (m, 2H), 7.54 (d, 1H, J: 7.5 Hz), 7.80 (s, 1H)
N%S (4-(1-hydroxy(5H—imidazo[5, 1-
a] isoindoly1)ethy1)piperidin 72
y1)(thiopheny1)methanone
1384 W
1H NMR (a mixture of diastereomers)1.39 (m, 2H), 1.66 (m, 2H), 2.07 (m, 1H), 2.17 (m,
1H), 2.89 (m, 2H), 3.76 (m, 1H), 5.37 and 5.51 (m, 1H), 7.01 (t, 1H, J: 4.3 Hz), 7.16 (s,
1H), 7.24 (m, 2H), 7.31—7.40 (m, 3H), 7.54 (d, 1H, J: 7.6 Hz), 7.81 (s, 1H)
1-(4-(1-hydroxy(5H-imidazo[5,1-
a]isoindoly1)ethy1)piperidiny1) 68
/ '1) HO phenylethanone
1405 N
1H NMR(a mixture of diastereomers)1.00-2.25 (m, 6H), 2.47 (t, 1H, J = 9.8 Hz), 2.47 (t,
1H, J: 9.8 Hz), 2.89 (t, 1H, J: 12.0 Hz), 3.70 (m, 3H), 3.90 (t, 1H, J: 12.6 Hz), 3.90 (t,
1H, J: 12.3 Hz), 5.25—5.50 (m, 1H), 7.10—7.30 (m, 9H), 7.36 (t, 1H, J: 9.6 Hz), 7.53 (d,
1H, J: 7.8 Hz)
Yield
Compound Name
3? 1—Cyclohexy1(5H—imidazo[5, 1-
/ N a]isoind01-5 -y1)pr0pan—2—01
1404 N/ HO
H NMR(a mixture of diastereomers)0.8085 (m, 14H), 2.00—2.20 (m, 1H), 4.20—4.50
(m, 1H), 5.30—5.60 (m, 1H), 7.14 (s, 1H), 7.20—7.39 (m, 2H), 7.43 (d, 1H, J: 7.2 Hz),
7.43 (d, 1H, J: 7.2 Hz), 7.91 (s, 1H)
1—cyclohexy1—3—(6—flu0r0—5H—
imidazo[5,1-a]isoind01y1)pr0pan—2— 55
9’ 01
1403 N HO
H NMR (a mixture of reomers)0.55—1.75 (m, 13H), 2.00—2.50 (m, 2H), . 10
(m, 1H), 5.30—5.75 (m, 1H), 6.85—7.00 (m, 1H), 7.10—7.25 (m, 2H), 7.25—7.40 (m, 2H),
7.93 (s, 1H)
1-cyclohexy1(5H-imidazo[5,1-
/ N a]isoind01y1idene)ethan01
1419
1H NMR mixture ofE/Z isomers: 1.15-1.30 (m, 10H), 1.66—1.83 (m, 10H), 2.00—2.12 (m,
2H), 4.56 (t, 1H, J = 6.4 Hz), 4.66 (d, 1H, J = 7.4 Hz), 6.02 (d, 1H, J = 8.3 Hz), 6.76 (s,
1H), 7.07 (s, 1H), 7.33—7.48 (m, 4H), 7.56 (d, 2H, J = 7.8 Hz), 7.82 (s, 1H), 7.98 (d, 1H, J
= 7.9 Hz), 8.04 (s, 1H), 8.42 (s, 1H).
(tranS)-methy1 4-((1R)—1-hydr0xy
(5H—imidazo[5, 1—a]isoind01—5— 87
y1)cyclohexanecarboxylate
1426 H NMR (a mixture of diastereomers) 1.05 — 1.20 (m, 2H), 1.42 (qt, J = 12.7, 4.0 Hz,
3H), 1.63 — 1.82 (m, 1H), 1.92 — 2.10 (m, 4H), 2.11 — 2.31 (m, 2H), 3.65 (s, 3H), 3.72 —
3.83 (m, 1H), 5.36 (t, J: 6.2 Hz, 0.7H), 5.52 (dd, J=10.8, 3.1 Hz, 0.3H), 7.14 (s, 1H),
7.23 (t, J: 7.4 Hz, 1H), 7.31 — 7.40 (m, 1H), 7.42 (d, J: 7.7 Hz, 1H), 7.53 (d, J: 7.6 Hz,
1H), 7.83 (s, 1H)
Yield
# Compound Name
2-(5H—imidazo[5, 1 -a]isoindoly1)— 1 -
N) HO
/ (spiro[2.5]octany1)ethanol
1438
1H NMR (a mixture of diastereomers) 0.14-0.28 (m, 4H), 0.89 (t, 2H, J = 12.0 Hz), 1.19—
2.938(m, 9H), 2.81 (br s, 1H), 3.80—3.82 (m, 1H), 5.36—5.39 and 5.50—5.53 (two m, 1H),
7.16 (s, 1H), 7.21—7.25 (m, 1H), 7.33 (t, 1H, J = 7.6 Hz), 7.44 (d, 1H, J = 7.6 Hz), 7.53 (d,
1H, J = 7.6 Hz), 7.80 and 7.81 (two s, 1H )
(trans)—4—(2—(6—fluoro-5H—imidazo[5, 1-
a]isoindol—5-y1)—1— 92
/ N OH
9I hydroxyethy1)cyclohexanol
HO H
1475 N
H NMR (a mixture of diastereomers) 1.07-2.52 (m, 11H), 3.48—3.68 (two m, 2H), 5.45
(t, 1H, J = 6.0 Hz), 5.65 (dd, 1H, J = 9.0, 3.0 Hz), .96 (m, 1H), 7.16 (s, 1H), 7.29—
7.38 (m, 2H), 7.80 and 7.88 (two s, 1H)
F (1R)((trans)—4—
H OCHZPh (benzyloxy)cyclohexy1)—2—(6—fluoro—
N 5H—imidazo[5,1—a]isoindol—5—
/ ) HO
N/ y1)ethanol
1499
1H NMR (a mixture of diastereomers) 1.04-1.33 (m, 5H), 1.71—2.32 (m, 5H), 2.75—2.51
(two m, 1H), 3.24—3.29 (m, 1H), 3.65—3.69 (m, 1H), 4.54 (s, 2H), 5.43 (t, 1H, J =4.7 Hz,
isomer), 5.65 (dd, 1H, J = 10.4, 2.4 Hz, isomer), 6.92 (t, 1H, J = 8.8 Hz), 7.14 (s, 1H),
7.26—7.33 (m, 7H), 7.79 and 7.88 (two s, 1H)
-((trans)—4—
H OCH Ph2
loxy)cyclohexyl)—2—(5H— 78
HO imidazo[5,1-a]isoindoly1)ethanol
1498 /N/)
H NMR (a mixture of diastereomers) 1.15-2.20 (m, 11H), 3.22—3.31 (m, 1H), 3.65—3.75
(m, 1H), 4.48 and 4.54 (two s, 2H), 5.35 (t, 1H, J = 8.0 Hz, ), 5.48 (dd, 1H, J =
16.0, 4.0 Hz, isomer), 7.15—7.55 (m, 10H), 7.77 and 7.79 and 7.81 (three s, 1H)
Yield
# Compound Name
N—((CiS)—4—(1—hydroxy—2—(5H—
>—ph imidazo[5,1—a]isoindol—5— 63
/ N NH
y1)cyclohexy1)benzam1de. g] HO H
1492 1H NMR (a mixture of diastereomers) (CD3OD) 1.27—1.46 (m, 5H), 1.79 (d, 1H, J = 12.0
Hz), 2.04—2.22 (m, 5H), 3.78—3.88 (m, 2H), 5.47—5.49 and 5.53—5.54 (two m, 1H), 7.16
and 7.19 (two 5, 1H), 7.35 (t, 1H, J= 7.4 Hz), 7.42—7.49 (m, 3H), 7.53 (d, 1H, J= 7.2 Hz),
7.59 (d, 1H, J= 7.6 Hz), 7.64 (d, 1H, J= 7.6 Hz), 7.82 (d, 2H, J= 7.6 Hz), 7.97 and 8.01
(two 5, 1H)
N—((trans)—4—(1-hydroxy(5H—
imidazo[5,1-a]isoindol—5— 57
y1)ethy1)cyclohexy1)benzamide
1505 H NMR (a mixture of diastereomers) 1.14-1.45 (m, 4H), 1.74 (d, 1H, J = 10.6 Hz), 1.97
(d, 1H, J: 10.6 Hz), 2.09—2.20 (m, 4H), 3.71—3.82 (m, 1H), 3.85—3.95 (m, 1H), 5.3—5.40
and 5.48—5.59 (two m, 1H), 6.03 (d, 1H, J= 7.6 Hz), 7.17 (s, 1H), 7.21—7.30 (m, 1H,
merged with chloroform), 7.31—7.51 (m, 5H), 7.55 (d, 1H, J= 7.4 Hz), 7.74 (d, 2H, J=
7.6 Hz), 7.83 (s, 1H)
1—(4—(2—
OH hydroxyethylidene)cyclohexy1)—2—(5H— 59
/ 5 HO imidazo[5,1-a]isoindoly1)ethanol
1441
H NMR (a mixture of diastereomers) 1.00-1.30 (m, 2H), 1.40-1.60 (m, 1H), 1.62—1.81
(m, 2H), 1.82—2.13 (m, 3H), 2.60—2.75 (m, 1H), 3.60—3.75 (m, 1H), 3.90—4.10 (m, 2H),
.25—5.31 (m, 1H), 5.33—5.48 (m, 1H), 7.13 (s, 1H), .43 (m, 2H), .60 (m, 2H),
7.97 (s, 1H)
0 tert—butyl 3—(1—hydroxy(5H—
1460 N40 imidazo[5,1—a]isoindol—5— 43
/ A HO k y1)ethy1)azetidinecarboxy1ate
1H NMR (a mixture of diastereomers) 1.42 (s, 9H), 1.92—2.23 (m, 2H), 2.50—2.63 (m,
1H), 3.61—3.80 (m, 2H), 3.90—4.02 (m, 3H), 4.20—4.58 (br, 1H), 5.33—5.41 and 5.52—5.58
(two m, 1H), 7.13 (s, 1H), 7.21—7.28 (m, , 7.30—7.39 (m, 1.33H), 7.41—7.48 (m,
0.8H), 7.58 (d, J = 14.3 Hz, 1H), 7.93 and 7.99 (two 5, 1H)
/ \ 2-(5H—imidazo[5,1-a]isoindoly1)—1-
/ 5 N’ (pyridiny1)ethanol
1502 N
1H NMR (a mixture of diastereomers) 2.25—2.33 (m, 2H), 5.06—5.07 (m, 1H), 5.09 (br s,
1H), .38 and 5.46—5.49 (two m, 1H), 7.02 (s, 1H), 7.13—7.24 (m, 4H), 7.44—7.48 (m,
2H), 7.57—7.62 (m, 2H), 8.46—8.47 (m, 1H)
%2-(5H—imidazo[5, 1 -a]isoindoly1)— 1 — 69
/ 5 (pyridin-3 -y1)ethanol
1474 N
1H NMR (a e of diastereomers) 1.75—2.43 (m, 2H), 5.07—5.12 (m, 1H), 5.38—5.40
and 5.56—5.58 (two m, 2H), 6.98 and 7.11 (two 5, 1H), 7.19—7.33 (m, 3H), 7.43—7.49 (m,
2H), 7.43—7.79 (m, 2H), 83—851 (m, 2H)
N 2-(5H—imidazo[5, 1 -a]isoindoly1)— 1 —
N / (pyridiny1)ethanol
1501 /N/)
H NMR (a mixture of diastereomers) 1.98—2.32 (m, 2H), 3.59 (br, 1H), 5.03—5.06 (m,
1H), 5.42—5.45 and .58 (two m, 1H), 7.20—7.23 (m, 1H), 7.24—7.25 (m, 4H), 7.34 (t,
J = 7.0 Hz, 1H), 7.41 (d, J = 7.2 Hz, 1H), 7.49 (d, J = 7.6 Hz, 1H), 8.44—8.46 (m, 2H)
2-(5H—imidazo[5, 1 -a]isoindoly1)— 1 -
(4-(trifluoromethy1)cyclohexy1)ethanol
1509 /;I\1 CF3
1H NMR (a mixture of diastereomers) 1.53-2.22 (m, 12H), 3.92-3.98 (m, 1H), 4.12 (br s,
1H), 5.39—5.43 and 5.50—5.60 (two m, 1H), 7.14 (s, 1H), 7.23—7.54 (m, 5H), 7.94 (s, 1H)
Yield
# Compound Name
2—(6—fluoro-5H-imidazo[5, 1 -
a]isoindol—5—y1)—1—(4— 61
/ /) HO (trifluoromethy1)cyclohexyl)ethanol
1508 N
H NMR (a e of diastereomers) 1.40-1.70 (m, 7H), 1.70—1.90 (m, 2H), 1.91—2.04
(m, 1H), 2.09—2.28 (m, 1H), 2.38—2.48 (m, 1H), 3.80—3.98 (br, 2H), 5.43—5.71 (two m,
1H), .94 (m, 1H), 7.14 (s, 1H), 7.29—7.38 (m, 2H), 7.93 and 7.97 (two 5, 1H)
1—((cis)—4—(benzyloxy)cyclohexy1)
OCHZPh
(6-fluoro-5H—imidazo[5,1—a]isoindol— 87
—y1)ethanol
1473
1H NMR (a mixture of diastereomers) 1.39-2.42 (m, 12 H), 3.39—3.78 (m, 2H), 4.47 and
4.48 (two 5, 2H), 5.44 (t, 1H, J = 5.1 Hz), 5.67 (dd, 1H, J = 10.2, 2.8 Hz), 6.88—6.94 (m,
1H), 7.25—7.36 (m, 8H), 7.80, 7.82, 7.88 and 7.90 (four 5, 1H)
Example 26 Preparation of 1469-1472
0 0
N40% N40%
/ 3 OH / S (5H
N/ N/
1469 1470
.m NJ?0% ..\\ NJ?
/N 2:0 /N QH/C/ 0%
N) N)
1471 1472
The pure diastereomers were obtained from the racemic mixture of 1363 using preparative
chiral ritical fluid chromatography (SFC) technique, using a AD-H column (Regis
Technologies, Inc.) in methanol:COz (24:76).
Example 27 General Procedure for the Removal of Boc ting Group
n N’Boc *
_, * n NH.HC|
/ N
N) HO n /N/) HO n
.HCI
n=Oor1 n=Oor1
To a solution of the appropriate Boc ted amine 1363, 1469, 1470, 1471, 1472 or 1460
(1.13 mmol) in dichloromethane (10 mL) was added trifluoroacetic acid (33.8 mmol). The
resulting solution was stirred at RT for 2 h and concentrated. The crude was dissolved in
methanol (4 mL) and hydrogen chloride (4M in dioxane) (3.39 mmol) was added. The
mixture was concentrated and dried under high vacuum to give the desired product as a
dihydrochloride salt which was directly used in the next step without r purification.
Example 28 General Procedure for the Synthesis of 1423, 1424, 1425, 1437, 1439, 1448,
1450, 1458, 1480, 1481, 1490, 1493, 1500 and 1511 Using HATU Coupling.
.. nNH.HCI
, .. nN’/<
/NHO
N) n /N
)HO n
.HCI
n=Oor1 n:00r1
To a vial containing appropriate amine salt obtained from Example 27 (0.25 mmol) in DMF
(4 mL) was added the ponding carboxylic acid (0.26 mmol), DIPEA (1.5 mmol) and
HATU (0.28 mmol). The reaction e was stirred at rt for 18 h and poured into water (10
mL) and the aqueous layer was extracted with dichloromethane (2 x 20 mL). The combined
organic layers were washed with water (2 x 10 mL), dried over , and concentrated.
The crude product was purified by flash column chromatography to afford 1423, 1424, 1425,
1437, 1439, 1448, 1450, 1458, 1480, 1481, 1490, 1493 or 1500.
Example 29 General Procedure for the synthesis of 1449, 1459, 1476, 1477, 1478 and 1479.
* nNH.HCI
* nN/K
//) N
HO n //) H
HO n
N N
.HCI
n=Oor1 n=oor1
To a Vial containing appropriate amine salt obtained from Example 19 (0.25 mmol) in
dichloromethane (4 mL) was added DIPEA (1.0 mmol) and phenylisocyanate (0.25 mmol).
The reaction mixture was stirred at rt for 30 min and concentrated. The residue was ved
in romethane (30 mL) and washed with water (3 x 10 mL). The c layer was dried
over NaZSO4 and concentrated. The crude product was purified by flash column
chromatography to afford ureas 1449, 1459, 1476, 1477, 1478 and 1479.
Example 30 General Procedure for the Synthesis of 1495, 1496, 1497, 1503, 1504, 1507,
1512.
* n NH.HC|
* n N4 R
/ N W
,) H0 n /) HO n
N N/
.HCI
“=00“ n=Oor1
To a solution of appropriate amine (0.3 mmol) in CHzClz (3 mL) was added
carbonyldiimidazole (0.35 mmol) and ethyl diisopropylamine (2.0 mmol) at 0 0C under an
atmosphere of N2 and the mixture was stirred for 1 h. The appropriate amine salt obtained
from Example 19 (0.25 mmol) was added and the mixture was d to stir overnight. The
solution was partitioned with water in a separatory funnel and the organic layer was
collected. The s layer was extracted with dichloromethane (3 x 10 mL) and the
combined organic fractioned were dried (NaZSO4). The crude was purified by flash column
chromatography to afford 1495, 1496, 1497, 1503, 1504 or 1507.
Yield
# Compound Name
D 1—(4—(1—hydroxy—2—(5H—
\ N o[5,1—a]isoindol—5—
N 76
N yl)ethy1)piperidiny1)
/N) HO
(pyrimidiny1)ethanone
1H NMR (a mixture of diastereomers) 1.30-1.41 (m, 3H), 1.63-1.72 (m, 2H), 1.87—2.22
1423
(m, 2H), 2.56 (t, 1H, J = 12.4 Hz), 3.01—3.15 (m, 2H), 3.67 (d, 1H, J = 6.0 Hz), 3.83—3.85
(m, 1H), 3.96 (t, 1H, J = 14.6 Hz), 4.66 (t, 1H, J = 14.6 Hz), 5.44—5.46 and 5.62—5.65 (two
m, 1H), 7.17 and 7.19 (two 5, 1H), 7.26—7.30 (m, 1H, merged with chloroform), 7.39 (t,
1H, J = 7.4 Hz), 7.46 (d, 1H, J = 7.6 Hz), 7.56 (d, 1H, J = 7.2 Hz), 8.14 (d, 1H, J = 13.2
Hz), 8.63 (d, 2H, J = 4.4 Hz), 9.08—9.10 (m, 1H)
2—(3 ,4-difluoropheny1)— 1 -(4-(1-
hydroxy(5H—imidazo[5, 1-
a]isoindol-5 —y1)ethy1)piperidin— 1 -
yl)ethanone
1424 H NMR (a e of diastereomers) .33 (m, 2H), 1.61-1.64 (m, 3H), 1.84—1.92
(m, 1H), .15 (m, 1H), 2.53 (t, 1H, J =12.8 Hz), 2.98 (t, 1H, J = 12.8 Hz), 3.67 (d,
2H, J = 4.0 Hz), 3.76—3.78 (m, 1H), 3.90 (t, 1H, J = 13.6 Hz), 4.19 (br s, 1H), 4.70 (t, 1H,
J = 13.6 Hz), 5.32—5.36 and 5.49—5.53 (two m, 1H), 6.94 (s, 1H), 7.06—7.13 (m, 2H), 7.14
(s, 1H), 7.24—7.30 (m, 1H), 7.34—7.42 (m, 2H), 7.56 (d, 1H, J = 6.8 Hz), 7.81—7.85 (m,
cyclohexy1(4-(1-hydroxy(5H—
N imidazo[5,1-a]isoindol 44
/ 5 HO yl)ethy1)piperidiny1)methanone
1425 1H NMR (a mixture of diastereomers) 1.20—1.34 (m, 6H), .77 (m, 10H), 1.87-1.97
(m, 1H), 2.03—2.08 (m, 1H), 2.16—2.20 (m, 1H), 2.46 (t, 2H, J = 12.0 Hz), 3.76—3.79 (m,
1H), 3.97 (t, 1H, J = 16.2 Hz), 4.70 (t, 1H, J = 14.2 Hz), 5.38—5.41 and 5.51—5.56 (two m,
1H), 7.15 (s, 1H), 7.23-7.27 (m, 1H, merged with chloroform), 7.37 (t, 1H, J = 7.8 Hz),
7.44 (d, 1H, J = 7.6 Hz), 7.54 (d, 1H, J = 7.6 Hz), 7.79 and 7.82 (two 5, 1H)
2012/033245
# Yield
Compound Name
l—(4—(l —hydroxy—2—(5H—
N/(Q/N imidazo[5,1—a]isoindol—5—
yl)ethyl)piperidinyl)—2- 49
idineyl)ethanone
1437 1H NMR (a mixture of diastereomers) 1.08—1.16 (m, 1H), .33 (m, 1H), 1.57—1.65
(m, 2H), 1.86 (t, 1H, J = 14.0 Hz), 1.99—2.17 (m, 2H), 2.52 (dt, 1H, J = 2.4, 12.8 Hz), 2.97
(dt, 1H, J = 4.0, 12.8 Hz), 3.70 (d, 2H, J = 7.2 Hz), 3.70-3.76 (m, 1H, merged with
doublet at 3.70), 3.83 (t, 1H, J = 13.8 Hz), 4.30 (br s, 1H), 4.69 (t, 1H, J = 14.0 Hz), 5.32—
.36 and 5.51—5.53 (two m, 1H), 7.10 and 7.12 (two 5, 1H), 7.16—7.25 (m, 3H), 7.35—7.41
(m, 2H), 7.54 (d, 1H, J = 7.6 Hz), 7.76 (d, 1H, J = 4.4 Hz), 8.49—8.52 (m, 2H)
2-(4-fluorophenyl)- 1-(4-(1-
y(5H—imidazo[5, 1-
N a]isoindol—5 —yl)ethyl)piperidin— 1—
N/ HO
yl)ethanone
1H NMR (a mixture of diastereomers) 1.08-1.13 (m, 1H), 1.23—1.30 (m, 1H), 1.54—1.63
1439 (m, 2H), 1.78 and 1.86 (two d, 1H, J = 13.0 Hz), 1.99—2.12 (m, 2H), 2.49 (dt, 1H, J = 2.4,
12.8 Hz), 2.93 (dt, 1H, J = 3.0, 12.8 Hz), 3.66 (d, 2H, J = 4.4 Hz), 3.71—3.73 (m, 2H,
merged with broad singlet of OH), 3.90 (t, 1H, J = 15.2 Hz), 4.68 (t, 1H, J = 13.6 Hz),
.30—5.37 and 5.47—5.50 (two m, 1H), 6.94—7.00 (m, 2H), 7.13 (s, 1H), 7.15—7.20 (m, 2H),
7.22-7.31 (m, 1H, merged with chloroform), 7.35—7.41 (m, 2H), 7.54 (d, 1H, J = 7.6 Hz),
7.84 (d, 1H, J = 5.2 Hz)
(3—fluoro—2—h-ydroxyphenyl)(4(1—
hydroxy(5H—imidazo[5, 1-
a]isoindol—5 y—l)ethyl)piperidin— 1—
yl)methanone
1448
1H NMR .47 (m, 2H), 1.66—1.70 (m, 2H), 1.86—2.15 (m, 7H), 2.89 (m, 1H), 4.31 (br
s, 1H), 5.43-5.47 and 5.53-5.59 (two m, 1H), 6.78-6.84 (m, 1H), 6.99 (d, 1H, J = 7.6 Hz),
7.11 (t, 1H, J = 9.4 Hz), 7.19 (s, 1H), 7.33 (d, 1H, J = 7.2 Hz), 7.37-7.47 (m, 2H), 7.58 (d,
1H, J = 7.2 Hz), 8.03 and 8.13 (two 5, 1H)
2012/033245
Yield
Compound Name
4-(1-hydroxy-2—(5H—imidazo[5, 1-
a]isoind01—5—y1)ethy1)—N— 62
phenylpiperidinecarb0xamide
1449 1H NMR (CD3OD) 1.33—1.43 (m, 2H), 1.59—1.71 (m, 2H), 1.92—1.95 (m, 1H), 2.10—2.22
(m, 2H), 2.87 (t, 2H, J = 11.8 Hz), 3.79—3.83 (m, 1H), 4.25 (t, 2H, J = 15.2 Hz), 5.48 and
552—555 (t, J = 6.0 Hz and m, 1H), 7.03 (t, 1H, J = 7.4 Hz), 7.16 and 7.19 (two 5, 1H),
7.28 (t, 2H, J = 8.0 Hz), 7.33—7.37 (m, 3H), 7.43 (t, 1H, J = 7.4 Hz), 7.62 (dd, 2H, J = 7.6,
21.6 Hz), 7.94 and 7.97 (two 5, 1H), 8.01 (s, 1H)
0 (4-fluorophenyl)(4-(1-hydroxy-2—
(5H—imidazo[5,1—a]isoind01—5- 29
/N/) OH
yl)ethy1)piperidiny1)methan0ne
1450 F
H NMR 1.29—1.37 (m, 3H), 1.57—1.87 (m, 3H), 2.18—2.36 (m, 2H), 3.73—3.86 (m, 4H),
4.74 (br s, 1H), 5.44—5.49 and 5.58—5.63 (two m, 1H), 7.08 (t, 2H, J = 7.2 Hz), 7.23 (s,
1H), 7.31—7.48 (m, 5H), 7.59 (d, 1H, J = 7.2 Hz), 8.20 an d 8.27 (two 5 , 1H)
1—(3 —(1—hydroxy—2—(5H—
imidazo[5,1—a]isoind01—5—
N 55
/N/ yl)ethy1)azet1d1ny1)-2—. .
N phenylethanone
1458
1H NMR (a mixture of diastereomers)1.79-2.13 (m, 2H), 2.44-2.48 (m, 1H), 3.33—3.42
(m, 2H), 3.67—3.93 (m, 2H), 3.97—4.04 (m, 2H), 4.12—4.19 (m, 1H), 5.23—5.31 and 5.34—
542 (two m, 1H), .37 (m, 9H), .48 (m, 1 H), 7.93 and 8.07 (two d, J = 7.6
Hz, 1H)
3 -(1-hydroxy-2—(5H—imidazo[5, 1-
1459 ndoly1)ethy1)—N— 19
phenylazetidinecarb0xamide
Yield
# Compound Name
1H NMR (a mixture of diastereomers) 1.95-2.20 (m, 2H), 2.64—2.68 (m, 1H), 3.76—3.81
(m, 1H), 3.98—4.10(m, 4H), .46 and 5.51—5.57 (two m, 1H), 6.97—7.14 (m, 1H),
7.22 and 7.24 (two 8, 1H), 7.26-7.38 (m, 3.3H), 7.40-7.42 (m, 3H), 7.57-7.62 (m, 1.7H),
7.99 and 8.00 (two 8, 1H)
O 4—((S)—1—hydroxy—2—((R)—5H—
N4N@
imidazo[5,1-a]isoindol—5—yl)ethyl)— 67
/ H
9 OH N—phenylpiperidine-l-carboxamide
1476 H NMR .41 (m, 2H), 1.51—1.57 (m, 1H), 1.61 (d, 1H, J = 12.4 Hz), 1.83 (d, 1H, J
= 12.4 Hz), 2.00—2.14 (m, 2H), 2.78 (t, 2H, J = 12.0 Hz), 3.74—3.76 (m, 1H), 4.15—4.18 (m,
2H), 4.42 (br s, 1H), 5.32 (t,1H, J = 6.0 Hz), 6.98 (t, 1H, J = 7.4 Hz), 7.15 (d, 2H, J =
14.4 Hz), 7.20—7.25 (m, 3H), 7.35—7.37 (m, 3H), 7.40 (d, 1H, J = 7.6 Hz), 7.52 (d, 1H, J =
7.6 Hz), 7.86 (s, 1H)
4—((R)—1—hydroxy—2—((R)—5H—
imidazo[5,1-a]isoindolyl)ethyl)— 78
N—phenylpiperidinecarboxamide
1477
1H NMR 1.15—1.61 (m, 6 H), 1.86 (d, 1H, J = 12.8 Hz), 2.17—2.22 (t, 1H, J = 11.2 Hz),
2.66—2.75 (m, 2H), 3.68—3.76 (m, 1H), 4.04—4.08 (m, 2H), 4.60 (br,2H), 5.47 (d, 1H, J =
8.8 Hz), 6.86—6.90 (t, 1H, J = 11.2 Hz), 6.94 (s, 1H), 7.09—7.31 (m, 7H), 7.45 (d, 1H, J =
7.2 Hz), 8.24 (s, 1H)
4—((R)—1—hydroxy—2—((S)—5H—
imidazo[5,1-a]isoindoly1)ethy1)— 74
N-pheny1piperidinecarboxamide
1478
H NMR .61 (m, 4H), 1.81 (d, 1H, J =12.5 Hz), 2.01—2.15 (m, 2H), 2.77 (t, 2H, J =
12.4 Hz), 3.68—3.73 (m, 1H), 408—4. 14 (m, 2H), 5.31 (t, 1H, J = 4.0 Hz), 6.92 (s, 1H),
6.97 (t, 1H, J = 6.0 Hz), 7.12 (s, 1H), 7.21—7.38 (m, 6H), 7.51 (d, 1H, J = 7.4 Hz), 7.87 (s,
Yield
4—((1S§— 1 —hydroxy—2—((S)—5H—
imidazo[5,1-a]isoind01—5-y1)ethy1)— 78
N-pheny1piperidinecarb0xamide
1H NMR 1.15—1.61 (m, 6 H), 1.86 (d, 1H, J = 12.8 Hz), 2.17—2.22 (t, 1H, J = 11.2 Hz),
2.66—2.75 (m, 2H), .76 (m, 1H), 4.04—4.08 (m, 2H), 4.60 (br,2H), 5.47 (d, 1H, J =
8.8 Hz), 6.86—6.90 (t, 1H, J = 11.2 Hz), 6.94 (s, 1H), 7.09—7.31 (m, 7H), 7.45 (d, 1H, J =
7.2 Hz), 8.24 (s, 1H)
1—(4—((R)—1—hydroxy—2—((S)—5H—
imidazo[5,1—a]isoind01—5—
N WVC/NW5 . . . 1 y1)2
/ ) yl)ethy1)p1perld1n_ _ _ _
N/ phenylethanone
1H NMR 10—214 (m, 8H), 2.46 (t, 1H, J = 12 Hz), 2.91 (t, 1H, J =12 Hz), 3.65—3.72 (m,
3H), 3.91 (t, 1H, J =16 Hz), 4.71 (t, 1H, J = 12 Hz), 7.15—7.56 (m, 9H), 7.55 (d, 1H, J =
7.51 Hz), 7.91 (d, 1H, J = 7.7 Hz)
1—(4—((S)—1—hydroxy—2—((1S§—5H—
”HE/0NW imidazo[5,1—a]isoind01—5—
N y1)p1perld1n. . .
/ _ 1 y1)2_ _ _
/) OH
N phenylethanone
1H NMR 1.04—1.27 (m, 2H), 1.51—1.67 (m, 3H), 1.81—1.89 (m, 1H), 2.19—2.25 (m, 1H),
2.46—2.52 (m, 1H), 2.90 (t, 1H, J = 12.8 Hz), .74 (m, 3H), 3.90 (t, 1H, J = 16.0 Hz),
4.62—4.70 (m, 1H), 5.23 (br s, 1H), 5.49 (dd, 1H, J = 2.2, 10.2 Hz), 7.12 (s, 1H), 7.18—
7.37 (m, 8H), 7.53 (d, 1H, J = 7.5 Hz), 7.92 (d, 1H, J = 3.0 Hz)
O 1-(4-((S)—1—hydroxy—2—((S)—5H—
...ufi/C/NW0 imidazo[5,1—a]isoind01—5—
/ 5 yl)ethy1)piperidiny1)—2-
N (tetrahydro-2H-pyranyl)ethan0ne
Yield
# nd Name
1H NMR (CD3OD) 5 1.06 —1.46 (m, 4H), 1.56 — 1.73 (m, 3H), 1.82 — 2.08 (m, 3H), 2.32
(t, J: 6.4 Hz, 2H), 2.39 (dd, J: 18.4, 7.2 Hz, 1H), 2.54 (t, J= 13.0 Hz, 1H), 3.03 (t, J=
12.9 Hz, 1H), 3.40 (t, J: 11.7 Hz, 2H), 3.48— 3.59 (m, 1H), 3.90 (d, J= 11.5 Hz, 2H),
3.94 — 4.06 (m, 1H), 4.57 (t, .1: 14.8 Hz, 1H), 5.71 (d, .1: 6.5 Hz, 1H), 7.41 —7.52 (m,
2H), 7.55 (d, .1: 7.3 Hz, 1H), 7.73 (d, .1: 7.1 Hz, 1H), 7.90 (s, 1H), 8.57 (s, 1H)
1—(4—((S)—1—hydroxy—2—((R)—5H—
NW imidaz0[5,1—a]isoind01—5—
N yl)ethy1)p1perld1n. . .
/ _ 1 y1)2_ _ _
/) OH
N phenylethanone
1493
1H NMR 0.49—1.21 (m, 4H), 1.44—1.56 (m, 1H), .05 (m, 2H), 2.38—2.47 (m, 1H),
2.80—2.86 (m, 1H), 3.58—3.64 (m, 2H), 3.83 (t, J = 13.2 Hz, 1H), 4.62 (t, J = 13.2 Hz, 1H),
.25—5.30 (m, 1H), 7.13—7.24 (m, 7H), 7.29—7.34 (m, 2H), 7.48 (d, J = 7.6 Hz, 1H), 7.94
(br s, 1H)
4—((R)—1—hydroxy—2—((S)—5H—
O imidaz0[5,1-a]isoind01—5-y1)ethy1)—
.1” N4 "‘OH
N N—((tranS)—4— 56
N _
/ A : H
OH hydroxycyc10hexy1)piperidine
carboxamide
1495
H NMR (CD3OD) 1.21—1.43 (m, 7H), 1.48—1.66 (m, 2H), .01 (m, 5H), 2.14 (ddd,
2H, J: 4.4, 8.4, 10.4 Hz), 2.71 (t, 2H, J: 11.7 Hz), 3.49—3.55 (m, 2H), 3.74—3.79 (m,
1H), 4.08 (t, 1H, J: 13.6 Hz), 5.46 (t, 1H, J: 6.2 Hz), 7.16 (s, 1H), 7.34 (t, 1H, J: 7.5
Hz), 7.43 (t, 1H, J: 7.3 Hz), 7.57 (d, 1H, J: 7.6 Hz), 7.64 (d, 1H, J: 7.6 Hz), 8.00 (s,
0 4—((S)—1—hydroxy—2—((S)—5H—
...uYC/N”(N/CO imidaz0[5,1—a]isoind01—5-y1)ethy1)—
H N (tetrahydro 2H pyran 4
/ 5 _ _ _ _ _
N yl)piperidinecarb0xamide
1496
1H NMR 1.16—1.74 (m, 6H), 1.78— 2.00 (m, 2H), 2.18 — 2.37 (m, 1H), 2.70 (t, J= 12.7
Hz, 2H), 3.33 — 3.51 (m, 2H), 3.71— 4.13 (m, 5H), 4.76 (d, J= 7.4 Hz, 1H), 5.54 (dd
merged with br s, J= 10.6, 2.3 Hz, 3H), 7.13 (s, 1H), 7.20 — 7.38 (m, 3H), 7.51 (d, J= 7.5
Hz, 1H), 7.90 (s, 1H)
Yield
# Compound Name
4—((S)—1—h—ydroxy2—((S)—5H—
NAN0’ imidazo[5, 1 a—jlisoindoly1)ethy1)-
N—((tranS)—4— 65
[5)N/> hydroxycyclohexy1)piperidine
carboxamide
1497 1H NMR 1.08 — 1.44 (m, 6H), 1.57 (t,J= 12.5 Hz, 2H), 1.67— 1.80 (m, 1H), 1.90 (dd,J
= 24.8, 9.8 Hz, 4H), 2.29 (ddd, J = 14.3, 11.0, 3.1 Hz, 1H), 2.69 (t, J = 12.8 Hz, 2H), 3.35
(s, 1H), 3.49 (d, J = 4.4 Hz, 2H), 3.63— 3.77 (m, 1H), 3.95— 4.19 (m, 2H), 5.50 (dd, J =
9.7, 3.0 Hz, 1H), 6.05 (d, J = 7.8 Hz, 1H), 7.15 (s, 1H), 7.31 (td, J = 7.5, 1.0 Hz, 1H), 7.39
(t, J = 7.4 Hz, 1H), 7.46 (d, J = 7.2 Hz, 1H), 7.60 (d, J = 7.5 Hz, 1H), 7.91 (d, J = 8.5 Hz,
(R)—1—hydroxy—2—((S)—5H—
”\fC/NJz/CO imidazo[5,1-a]isoindol—5—
/N) y1)ethy1)piperidiny1)
(tetrahydro-2H—pyrany1)ethanone
1500
H NMR 1.19—1.42 (m, 4H), .67 (m, 4H), 1.86—1.90 (m, 1H), 2.08—2.25 (m, 4H),
2.43—2.51 (m, 1H), 2.92—3.01 (m, 1H), 3.39 (t, 2H, J = 11.8 Hz), 3.72—3.76 (m, 1H), 3.90—
3.99 (m, 3H), 4.70 (m, 1H, J = 9.75 Hz), 5.35—5.40 (m, 1H), 7.13 (s, 1H), .27 (m,
1H), 7.35—7.43 (m, 2H), 7.54 (d, 1H, J = 7.4 Hz), 7.80 (s, 1H)
4—((R)—1—hydroxy—2—((S)—5H—
“VON/“’00 imidazo[5,1—a]isoindol—5—y1)ethy1)—
/ 5 (5H H N—(retr'th‘ydro—2H—pyran
y1)p1per1d1necarboxam1de
1H NMR1.29—1.33(m, 1H), 1.41—1.47 (m, 2H), 1.51—1.61(m, 1H), 1.62 (d, 1H, J: 12.7
1503
Hz), 1.83 (d, 1H, J: 12.4 Hz), 1.91 (d, 2H, J: 12.4 Hz), 2.07—2.26 (m, 2H), 2.73 (t, 2H,
J: 12.2 Hz), 3.46 (t, 2H, J= 10.8 Hz), 3.73-3.78 (m, 1H), 3.81-3.89 (m, 1H), 3.93-4.05
(m, 4H), 4.40 (d, 1H, J: 7.5 Hz), 4.61 (br s, 2H), 5.41 (t, 1H, J= 5.9 Hz), 7.18 (s, 1H),
7.24—7.30 (m, 1H, merged with chloroform), 7.39 (t, 1H, J= 7.5 Hz), 7.44 (d, 1H, J= 7.6
Hz), 7.56 (d, 1H, J= 7.6 Hz), 7.92 (s, 1H)
Yield
# Compound Name
N—cyclohexy1—4—((R)—1—hydroxy—2—
((S)—5H—imidazo[5, 1—a]isoind01—5— 77
yl)ethy1)piperidinecarb0xamide
1H NMR 0.97—1.23 (m, 3H), 1.26—1.36 (m, 4H), 1.48—1.70 (m, 5H), 1.82 (d, J: 13.1 Hz,
1504
1H), 1.93 (d, J: 10.3 Hz, 2H), 2.07 (ddd, J: 14.3, 6.8, 2.7 Hz, 1H), 2.14 — 2.27 (m, 1H),
2.70 (td, J: 12.8, 2.5 Hz, 2H), 3.57—3.65 (m, 1H), 3.71 — 3.81 (m, 1H), 3.97 (t, J: 13.2
Hz, 2H), 4.31 (d, J: 7.6 Hz, 1H), 5.39 (t, J: 6.0 Hz, 1H), 7.16 (s, 1H), 7.24 (dd, J: 7.6,
1.0 Hz, 1H), 7.37 (t, J: 7.4 Hz, 1H), 7.43 (d, J: 7.6 Hz, 1H), 7.55 (d, J: 7.6 Hz, 1H),
7.80 (s, 1H)
N—cyclopenty1—4—((R)—1—hydroxy-2—
H—imidazo[5, 1 —a]isoind01—5— 87
1507
yl)ethy1)piperidinecarb0xamide
ER"I“ 1—(4—((R)—1—hydroxy—2—((S)—5H—
NWCFa imidazo[5,1-a]isoind01—5— 69
N =
/ y1)piperidiny1)(4-
N/ (trifluoromethy1)pheny1)ethan0ne
1511 H NMR 1.03 — 1.26 (m, 2H),1.28 — 1.39 (m, 2H), 1.56 (q, J: 13.9, 13.1 Hz, 2H), 1.75
(d, J: 13.0 Hz, 1H), 1.91 — 2.10 (m, 2H), 2.45 (t, J: 13.4 Hz,1H), 2.90 (t, J=13.0 Hz,
1H), 3.68 (d, J: 6.5 Hz, 2H), 3.83 (t, J: 13.9 Hz, 1H), 4.59 (t, J: 11.5 Hz, 1H), 4.94 (br
s, 1H), 5.35 (q, J: 6.6 Hz, 1H), 7.06 (d, J: 7.6 Hz, 1H), 7.21 — 7.40 (m, 5H), 7.42 — 7.56
(m, 3H), 8.16 (d, J: 17.3 Hz, 1H).
4—((R)— 1——hydroxy2—((S)—SH—
1512 ijVC/N/qms/Q/CF imidazo[5,1 a—jlisoindolyl)ethy1)—
(SH N—(4-(trifluoromethyl)phenyl)
piperidinecarb0xamide
1H NMR 1.15—1.61 (m, 6 H), 1.86 (d, 1H, .1: 12.8 Hz), 2.17—2.22 (t, 1H, .1: 11.2 Hz),
2.66—2.75 (m, 2H), 3.68—3.76 (m, 1H), 4.04—4.08 (m, 2H), 4.60 (br,2H), 5.47 (d, 1H, .1:
8.8 Hz), 6.86—6.90 (t, 1H, J= 11.2 Hz), 6.94 (s, 1H), 7.09—7.31 (m, 7H), 7.45 (d, 1H, J=
7.2 Hz), 8.24 (s, 1H)
(4—((R)— l —hydroxy—2—((S)—5H—
imidazo[5,1—a]isoindol—5—
yl)ethyl)piperidinyl)(1H-
imidazolyl)methanone
1513 H NMR 1.44—1.54 (m, 2H), 1.65—1.68 (m, 1H), 1.73 (d, 1H, J= 12.8 Hz), 1.98 (d, 1H, J
= 13.0 Hz), 2.05—2.14 (m, 1H), 2.18—2.25 (m, 1H), 2.99 (t, 2H, J= 12.0 Hz), 3.82—3.87 (m,
1H), 4.16 (t, 2H, .1: 10.7 Hz), 4.80 (br s, 1H), 5.41 (t, 1H, J= 5.9 Hz), 7.07 (s, 1H), 7.14
(s, 1H), 7.18 (s, 1H), .28 (m, 1H, merged with chloroform), 7.38 (t, 1H, J= 7.5
Hz), 7.43 (d, 1H, J= 7.6 Hz), 7.55 (d, 1H, J= 7.6 Hz), 7.84 (s, 1H), 7.86 (s, 1H).
Example 31 1-( 1 -(benzylsulfonyl)piperidinyl)—2-(5H—imidazo [5 ,1-a]isoindol-5—
yl)ethanol
%CNHHCI N,§=o
/N/) N O
/ /) HO
HCI N
1442
To a Vial 2-(5H—imidazo[5,1-a]isoindolyl)(piperidinyl)ethanol ochloride (0.12
g, 0.34 mmol) in CHzClz (3 mL) was added ethyl diisopropylamine (0.35 mL, 2.0 mmol) and
benzyl yl chloride (67 mg, 0.35 mmol). The reaction mixture was stirred at RT for 18 h
and concentrated. The residue was dissolved in dichloromethane (30 mL) and washed with
water (3 x 10 ml). The organic layer was dried over NaZSO4 and concentrated. The crude
product was purified by flash column chromatography to afford 1442 as white solid (85 mg,
58%).1H NMR (a mixture of diastereomers) 1.21-1.29 (m, 2H), 1.34-1.36 (m, 1H), 1.57—1.60
(m, 1H), 1.79—1.90 (m, 2H), .10 (m, 1H), 2.52—2.66 (m, 2H), .63 (m, 2H), 3.67—
3.71(m, 1H), 4.38 (s, 2H), 5.03 and 5.14 (two d, 1H, J = 6.0 Hz, OH), 5.39 (t, 1H, J = 6.8
Hz), 7.13 and 7.16 (two s, 1H), 7.29 (t, 1H, J = 7.2 Hz), 7.37-7.42 (m, 6H), 7.60 (dd, 2H, J =
7.8, 14.2 Hz), 7.92 and 7.95 (two s, 1H).
Example 32 2—(5H—imidazo[5,1—a]isoindol—5—yl)acetic acid
OEt OH
N O N O
I ,9 I ,9
N N
1256 1258
To a solution of 1256 (0.41 mmol) in tetrahydrofuran (2 mL) at rt was added
LiOH°H20 (0.45 mmol) and water (0.5 mL) the solution was stirred overnight. The solvent
was distilled off and the crude was ved in methanol (1.5 mL) followed by the addition
of ethyl acetate (2.5 mL), the precipitated white solid was filtered, washed with ethylacetate
and dried under reduced pressure to afford 1258 (68 mg, 75%). 1H NMR: 2.10 (dd, 1H, J =
18.0 Hz, 9.0 Hz), 2.66 (dd, 1H, J= 15.0 Hz, 3.0 Hz), 5.43—5.47 (m, 1H), 7.05 (s, 1H), 7.20 (t,
1H, J= 9.0 Hz), 7.32 (t, 1H, J= 9.0 Hz), 7.50—7.54 (m, 2H), 7.90 (s, 1H).
Example 33 2-(5H—imidazo[5,1-a]isoindolyl)ethanol
OEt 0“
N o ______,. N
I ,9 | 9
N N
1256 1254
To a solution of 1256 (3.51 mmol) in a 1:2 mixture of THF:EtOH (24 mL) at rt, was
added NaBH4 (12.28 mmol) and LiCl (12.28 mmol). After stirring overnight, the solvents
were distilled off and the crude was diluted with satd. NH4Cl (20 mL). The s layer was
extracted with CHzClz (3 x 40 mL). The combined organic extracts were dried over MgSO4
and the t distilled off under reduced pressure to afford a crude e. The crude
product was purified by silica flash chromatography to afford 1254 (638 mg, 91%). 1H
NMR: 2.04—2.08 (m, 1H), .40 (m, 1H), 3.84 (t, 2H, J: 6.3 Hz), 5.37—5.41 (m, 1H),
7.17 (s, 1H), 7.25—7.28 (m, 1H), 7.35 (d, 1H, J= 6.90 Hz), 7.38 (d, 1H, J= 7.2 Hz), 7.54 (d,
1H, J= 7.5 Hz), 7.76 (s, 1H).
Example 34 2-(5H—imidazo[5,1-a]isoindolyl)-N-methylacetamide
OEt N\
N O N O
I —’
,> I />
N N
1256 1259
To a solution of 1256 (0.124 mmol) in tetrahydrofuran (1.5 mL) at rt, was added the
methylamine solution (1.24 mmol, 0.62 mL, 2M in THF) and the solution was stirred at 60 0C
overnight. After cooling to rt the solvent was distilled off under reduced pressure and the
crude was purified by column tography to afford 1259 (21 mg, 75%). 1H NMR: 2.43
(dd, 1H, J= 20.0 Hz, 12.8 Hz), 2.91 (d, 3H, J= 4.8 Hz), 2.94 (dd, 1H, J= 20.0 Hz, 6.0 Hz)
.69 (dd, 1H, J=12.8 Hz, 5.60 Hz), 5.81 (br s, 1H), 7.13 (s, 1H), 7.22—7.26 (m, 1H), 7.33 (d,
1H, J= 8.4 Hz), 7.38 (d, 1H, J= 7.2 Hz), 7.53 (d, 1H, J= 7.80 Hz), 7.67 (s, 1H).
e 35 2—(5H—imidazo[5,1—a]isoindol—5—yl)acetaldehyde
\7 N\
OH \7\l
_> \o
1254 74
To a solution of 1254 (0.5 mmol) in dichloromethane (5 mL) at 0 0C was added
pyridinium chlorochromate (0.6 mmol) and the solution was allowed to warm to rt. After
stirring for 4 h, the solvent was distilled off under d pressure and the crude was
purified by column chromatography to afford 74 (63 mg, 64%). 1H NMR: 2.99 (dd, 1H, J =
7.5 Hz, 6.0 Hz), 3.28 (dd, 1H, J= 12.0 Hz), 5.61—5.65 (m, 1H), 7.18 (s, 1H), 7.26—7.30 (m,
1H), 7.32 (d, 1H, J= 6.0 Hz), 7.39 (t, 1H, J= 6.0 Hz), 7.55 (d, 1H, J= 6.0 Hz), 7.68 (s, 1H),
9.80 (s, 1H).
Example 36 (E)(2-bromostyryl)-5H—imidazo[5,1-a]isoindole
\ O \ O N
74 1273
To a on of 74 (1.21 mmol) in tetrahydrofuran (4 mL) at -20 0C was added
iPngCl°LiCl (1.21 mmol, 1.3 M in THF) se. After stirring for 1 h at -20 CC, 2-(5H—
imidazo[5,1—a]isoindolyl)acetaldehyde was added as a solution in tetrahydrofuran (2 mL)
and the reaction was allowed to warm to -10 0C. After stirring for 2 h at -10 0C the reaction
was quenched by adding sat’d NH4Cl solution (2 mL) and water (2 mL). The aqueous layer
was extracted with EtOAc (3 x 15 mL). The combined organic extract was dried over NaZSO4
and concentrated under reduced pressure to afford the crude reside. Chromatographic
cation of the crude using MeOH (98:2) afforded 1273 (42 mg, 21%). 1H NMR
.77 (d, 1H, J: 6.0 Hz), 6.26 (dd, 1H, J: 15.0 Hz, Hz, 6.0 Hz), 6.97 (d, 1H, J: 15.0 Hz),
7.13—7.17 (m, 2H), 7.26—7.33 (m, 2H), 7.47—7.65 (m, 5H).
Example 37 2-(5H—imidazo[5,1-a]isoindolyl)ethyl 2-(((1R,2R,5 S)isopropyl
methylcyclohexyl)oxy)acetate
\ 7“
OH 0 v“
—> \HAO E
N O /\
l />
1254 1288
To a solution of 1254 (110 mg, 0.55 mmol) in CHzClz at 0 °C was added
diisopropylethylamine (110 mg, 0.824 mmol). The mixture was allowed to stir for 5 min and
2-(((1S,2S,5R)isopropylmethylcyclohexyl)oxy)acetyl chloride (129 mg, 0.55 mmol)
was added. The solution was allowed to warm to rt and stirred for 4 h. The reaction mixture
was diluted with water (10 mL) and the organic layer was collected. The aqueous layer was
ted with CH2Clz (3 x 15 mL). The combined organic extract was dried (MgSO4) and
concentrated under reduced pressure to afford the crude product. The crude residue was
purified by flash chromatography to afford 1288 (200 mg, 92%). 1H NMR: 0.77 (d, 3H, J =
3.0 Hz), .25 (m, 7H) 1.23—1.31 (m, 2H), 1.54-1.72 (m, 3H), 1.98-2.03 (m, 1H), 2.20-
2.28 (m, 2H), 2.50-2.54 (m, 1H), .14 (m, 1H), 3.97—4.15 (m, 2H), 4.27 (t, 2H, J: 4.5
Hz), 5.26—5.31 (m, 1H), 7.19 (s, 1H), 7.26—7.30 (m, 1H), 7.35 (d, 1H, J= 6.0 Hz), 7.39 (d,
1H, J= 6.0 Hz), 7.55 (d, 1H, J= 6.0 Hz), 7.75 (s, 1H).
Example 38 1-Cyclohexyl(5H—imidazo[5,1-a]isoindolyl)ethanamine and (E)—5-(2-
CyclohexylVinyl)-5H-imidazo[5,1-a]isoindole
WO 42237
1) DEAD, PPh3
phthalimide
—> \
2) NH NH 'H o / N N
2 2 2
(aN H N2 /
Ho N» Na
1304 1388 1412
To a solution of triphenylphosphine (255 mg, 0.97 mmol) in THF (10 mL) at 0 CC
was added phthalimide (143 mg, 0.97 mmol) and 1304 (250 mg, 0.885 mmol) followed by
the se addition of DEAD (0.44 mL, 0.97 mmol). The reaction e was allowed to
warm to room temperature and stirred overnight. The solvent was distilled off under reduced
pressure, diluted with CHzClz (30 mL) and washed successively with 10% aq NaOH (2 x 15
mL), water and brine. The organic layer was dried (NaZSO4) and the solvent was evaporated
under reduced pressure to afford an off—white solid. The solid was dissolved in EtOH (5 mL)
and ine monohydrate (0.09 mL, 1.77 mmol) was added. The mixture was heated at 80
CC overnight. The solution was cooled to rt and the solvent was distilled off under reduced
pressure. The crude was diluted with CHzClz (20 mL) and the organic phase was washed with
water (10 mL). The organic layer was dried (NaZSO4) and the solvent was evaporated under
reduced pressure to afford a crude residue that was ed by column chromatography to
afford 1388 as a white solid (50 mg, 14%) and an eliminated side product 1412 (30 mg).
1388 1H NMR: 0.97—1.24 (m, 7H), 1.62—1.71 (m, 6H), 2.0 (m, 1H), 2.89 (m, 1H), 5.34 (dd,
1H, J= 8.4 Hz, 15.6 Hz), 5.38 and 5.49 (two m, 1H), 7.15 (s, 1H), 7.24 (m, 1H), 7.31—7.52
(m, 3H), 7.77 and 7.81 (two s, 1H). 1412 1H NMR: 1.11-1.28 (m, 5H), 1.55—1.75 (m, 5H),
2.01-2.11 (m, 1H), 5.47 (d, 1H, J= 8.0 Hz), 6.01 (dd, 1H, J= 6.8 Hz, 15.0 Hz), 7.18 (s, 1H),
7.26 (m, 2H), 7.36 (m, 1H), 7.52 (d, 1H, J= 7.6 Hz), 7.64 (s, 1H).
Example 39 4-(2-(6-fluoro-5H—imidazo[5, 1-a]isoindolyl)
hydroxyethyl)cyclohexanone
F F
—» o
/ N
A HO / /) HO
N N
1378 1379
To a on of 1378 (186 mg, 0.52 mmol) in THF (5 mL) was added 2M HCl (5
mL) and the solution was stirred at room temperature overnight. The solvent was removed in
vacuo and ing solution basified with 2M aqueous NaOH (6 mL) to pH > 8.0. The
aqueous solution was extracted with dichloromethane (2 x 50 mL) and the combined organic
layers were dried (NaZSO4) and concentrated in vacuo to give 1379 as a white solid (155 mg,
95%).
1H NMR: (CD3OD) 1.23—2.51 (m, 11H), 3.53—3.77 (m, 2H), 5.60—5.75 (m, 1H), 7.03—7.08 (m,
1H), 7.26—7.27 (m, 1H), 7.43—7.44 (m, 1H), 8.13 and 8.21 (two s, 1H).
Example 40 1-(4-(Hydroxymethyl)cyclohexyl)(5H—imidazo[5,1-a]isoindolyl)etanol
(1383)
1) 2
2) OH
/ N aq. NaOH N
2 HO
H202 //) H0
N N
1386 1383
To a solution of 1386 (121 mg, 0.41 mmol) in dry THF (10 mL) at 0 0C was added
BH3° SMez (0.05 mL, 0.53 mmol). The reaction mixture was allowed to warm to room
temperature and stirred overnight under an atmosphere of N2. The solution was diluted with
water (10 mL) and cooled to 0 °C. 3M NaOH (0.55 mL, 1.64 mmol) and 30% (w/w)
hydrogen de solution (0.19 mL, 1.64 mmol) were added sequentially. The on
mixture was allowed to stir overnight at room temperatura. The aqueous layer was extracted
with CHzClz (3 x 40 mL). The combined organic layers were 4) and concentrated
under reduced pressure. The crude residue was purified by flash column chromatography to
afford 1383 as a white solid (45 mg, 35%). 1H NMR MeOH—d4: 1.20—1.78 (m, 11H), 2.02—
2.22 (m, 2H), 3.46—3.51 (m, 2H), 3.78—3.88 (m, 2H), .44 (m, 1H), 7.12 and 7.14 (two s,
1H), 7.27—7.46 (m, 2H), 7.52—7.61 (m, 2H), 7.92 and 7.95 (two s, 1H).
Example 41 1-(5H—imidazo[5,1-a]isoindolyl)methylpropanol
(N —>
N / Nlr/
1256
1335
To a stirred solution of 1256 (48 mg, 0.20 mmol) in THF at 0 0C was added MeMgBr
1.0 M in THF (0.4 mL,) dropwise. The resulting solution was allowed to stir at rt for 2h. The
reaction was quenched by the careful addition of methanol to the reaction mixture. The crude
mixture was trated, absorbed in silica gel and purified by column chromatography to
afford 1335 (24 mg, 52%). 1H NMR 1.43 (s, 3H), 1.49 (s, 3H), 2.05—2.30 (m, 2H), 5.30—5.35
(m, 1H), 7.14 (s, 1H), 7.20—7.40 (m, 3H), 7.52 (d, 1H, J: 9.6 Hz), 8.02 (s, 1H).
e 42 4-(2-(6-Fluoro-5H—imidazo[5,1-a]isoindol-5 -yl)hydroxyethyl)cyclohexanol
NaBH4 OH
O —>
/5 HO /N/)N HO
1379 1371
To a e of 1379 (38 mg, 0.12 mmol) in anhydrous MeOH at 0 0C, was added
NaBH4 (0.36 mmol) and the solution was allowed to stir for 2 h at rt. The solvent was
distilled off under reduced pressure and the residue was partitioned between CHzClz (15 mL)
and satd. NH4C1 (5 mL). The organic layer was collected and the aqueous layer was extracted
with CH2Clz (2 x 10 mL). The ed c extract was washed with brine, dried
(NaZSO4) and the solvent evaporated. The crude was purified by column chromatography
(25% MeOH in EtOAc) to afford 1371 (29 mg, 76%). 1H NMR MeOH—d4 (mixture of
diastereomers): 1.00—1.40 (m, 5H), 1.40—2.10 (m, 5H), 2.37—2.47 (m, 1H), 3.39—3.57 (m, 2H),
.54 and 5.72 (two m, 1H) 6.98—7.06 (m, 1H), 7.15-7.18 (m,
, 1H), 7.37—7.42 (m, 2H), 7.93—
7.99 (m, 1H).
Example 43 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethanone oxime
N N
N O —> "‘q
I /> I /> OH
86 1360
To a solution of 86 (160 mg, 0.57 mmol) in EtOH (3 mL) at rt was added 50% aq
NHZOH (1.71 mmol) and the solution was stirred at 50 0C overnight. After cooling to rt, the
solvent was removed under reduced re and the crude was purified by flash column
chromatography to afford 1360 (120 mg, 71%). 1H NMR .15 (m, 5 H), 1.45—1.72 (m, 6
H), 2.43 and 2.58 (two m, 1H), 2.70 and 2.91 (m, 1H), 4.69 (m, 1H), 7.23-7.29 (m, 3H), 7.40
and 7.46 (two m, 1H), 7.53 and 7.58 (two m, 1H), 7.75 and 7.76 (two s, 1H), 10.34 and 10.41
(two s, 1H).
Example 44 1-cyclohexyl(5H-imidazo[5,1-a]isoindol-5 -yl)ethanamine
I 5) NmOH I 51> NH2
N N
1360 1364
To a solution of 1360 (100 mg, 0.34 mmol) in 1:1 EtOH/AcOH (4 mL) was added
zinc powder (67 mg, 1.0 mmol) and the mixture was d overnight at rt. The solvent was
removed under reduced re and the mixture was suspended in 1:1 MeOH/DCM (10 mL)
and filtered. The filtrate was collected and concentrated under reduced pressure. The crude
was purified by ion-exchange chromatography using water and NH4OH as the eluent to
afford 1364 (25 mg, 26%). 1H NMR (mixture of diastereomers) 0.89-1.75 (m, 11H), 2.24 and
2.42 (two m, 1H), 2.62 (m, 1H), 4.52 (m, 1H), 7.09 (t, 1H, .1: 9.2 Hz), 7.29 (m, 2H), 7.38
(m, 1H), 7.47 (m, 1H), 7.60 (d, 1H, J= 9.2 Hz).
Example 45 General Procedure for the Removal the BOC ting Group from
Substituted Anilines and Amines
RN11 k —’0 R-NH2
To a solution of 17, 1300, 1328 or 1363 (66.0 umol) in dichloromethane (2 mL) was
added trifluoroacetic acid (0.2 mL, 2.66 mmol) and the mixture was stirred at rt for 2 h. The
solvents were distilled off under reduced pressure and the on was basifled with satd.
NaHCO3. The aqueous layer was extracted with EtOAc (3 x 15 mL). The combined organic
layers were washed with water, brine and dried (NaZSO4). The on as filtered and the
solvent removed under reduced pressure. The crude residue was purified by column
chromatography to afford the following compounds.
1-(2-amin0pheny1)—2-(5H-
o[5,1-a]isoind01—5—
y1)ethan0ne
H NMR 3.40 (dd, 1H, J: 18.0 Hz, 9.6 Hz), 3.70 (dd, 1H, J: 18.0 Hz, 3.3 Hz),
.81 (dd, 1H, J: 6.3 Hz, J: 3.3 Hz), 6.43 (br s, 2H), 6.60 (t, 1H, J: 7.5 Hz),
6.68 (d, 1H, J: 8.4 Hz), 7.18 (s, 1H), 7.29 (m, 2H), 7.36 (d, 2H, J: 7.8 Hz), 7.55
(d, 2H, J: 7.5 Hz), 7.74 (s, 1H)
2—(5H-imidazo[5, 1 -a]isoind01—5—
y1)(piperidiny1)ethan01
H NMR (Mixture of diasteromers) 1.66-1.87 (m, 6 H), 2.20 (s, 1H), 2.75 (m,
2H), 3.40 (m, 2H), 3.84 (m, 2H), 5.27 and 5.34 (two m, 1H), 7.05 (s, 1H), 7.19 (t,
1H, J: 4.0 Hz), 7.30 (t, 1H, J: 8.0 Hz), 7.38 (d, 1H, J: 8.0 Hz), 7.46 (d, 1H, J:
8.0 Hz), 8.06 and 8.12 (two 8, 1H)
1-(4-amin0pheny1)—2-(5H-
imidazo[5,1-a]isoind01—5—
y1)ethan0ne
1H NMR 3.35 (dd, 1H, J =18.6 Hz, 9.6 Hz), 3.61 (dd, 1H, J = 18.6 Hz, 9.6 Hz),
4.13 (br s, 2H), 5.84 (dd, 1H, J =18.6 Hz, 9.6 Hz), 6.65 (d, 2H, J = 8.7 Hz), 7.18
(s, 1H), .29 (m, 1H), 7.37—7.58 (m, 3H), 7.74—7.82 (m, 3H)
0 O 1-(3 -amin0pheny1)—2-(5H-
N H2
imidazo[5,1-a]isoind01—5—
N CH
I /> y1)ethan01
(MeOH-d4) 2.32 (t, 2H, J = 6.3 Hz), 4.89—4.94 (m, 1H), 5.30 and 5.38 (two m,
1H), 6.64 (d, 1H, J: 7.8 Hz), 6.71—6.77 (m, 2H), 7.05—7.10 (m, 1H), 7.28—7.41 (m,
2H), 7.51—7.58 (m, 2H), 7.66 (s, 1H)
Example 46 5-(2-Cyc10hexy1—2-hydroxyethy1)—5H-imidazo[5,1-a]isoind01—9-01
O HO
N N
//) HO //) HO
N N
1372 1373
To a solution of 1372 (28 mg, 0.09 mmol) in DCM (3 mL) at 0 CC was added BBr3 (1
M in DCM, 0.27 mL, 0.27 mmol) dropwise and the mixture was allowed to stir at 0 CC for 2
h. Saturated aqueous NaHCO3 was added and the aqueous layer was extracted with DCM (2
x 10 mL). The combined organic layers were dried (Na2S04) and concentrated under reduced
pressure. The residue was purified by flash column chromatography to afford 1373 (15 mg,
56%). 1H NMR MeOH-d4: (mixture of reomers) 1.04-1.12 (m, 1H), .33 (m, 4H),
1.62-1.86 (m, 5H), 2.00—2.07 (m, 1H), 3.55 and 3.70 (two m, 1H), 5.38 and 5.44 (two m, 1H),
6.80 and 6.81 (two d, 1H, J= 8.0 Hz), 6.90 and 6.99 (two d, 1H, J= 7.6 Hz), 7.03 and 7.05
(two s, 1H), 7.12—7.16(m, 1H), 7.93 and 7.99 (two s, 1H).
Scheme 3. Enantioselective sis of (S)—1—cyc10hexy1—2—((S)—5H-imidazo[5,1—a]isoindol—
than01 (1417) and (R)cyc10hexy1-2—((S)—5H-imidazo[5, 1 -a]isoind01y1)ethan01
(1418)
0*+*0 | O OH
LDA THF DMAP, TBSCI
-78 °C to -40 °C, 3 h DMF, rt, 18 h
| O OTBS
(S)—-CBS
MGM—13.
I OH OTBS | OH OTBS
THF, 18 h
106 (1R, 38) (1R, BR)
107 108
(separate by column chromatography)
Et3N
TSCI, CHchZ
* * DMAP
reflux, 18 h
| OTs OTBS
E \> NaH, DMF, 60 °C
14 h
1. Pd(OAC)2, F’Ph3, CyZNMe
* * DMF, 95 °C, 5 h
_ —> *
(JN OTBS 2.1% HCI, EtOH, 50 °C, 3 h NMYC
/ /) OH
(13, as) 109 (13, 23) 1417
(1S,3R)111 (1R, 28)1418
SCHEME 3
Example 47 3 -Cyclohexy1-3 -hydroxy(2—iodopheny1)propanone
@* . 00—» *W
To a solution of diisopropylamine (1.6 mL, 11.1 mmol) in THF (38 mL) at 0 CC was
added n—BuLi (4.1 mL, 10.2 mmol) under an atmosphere of N2. After 30 min the solution was
cooled to —30 CC and a solution of odophenyl)ethanone (2.27 g, 9.23 mmol) in THF (6
mL) was added dropwise to the mixture and was stirred for 45 min at -30 CC. The mixture
was cooled to —78 CC and cyclohexylcarboxaldehyde (1.2 mL, 9.69 mmol) was added
dropwise and the mixture was allowed to warm to -40 CC over 2 h. The reaction was
quenched by the addition of saturated aqueous NH4Cl. The aqueous layer was ted with
EtOAc (2 x 50 mL). The combined organic layers were washed with brine, dried (NaZSO4),
ed and concentrated. The residue was purified by flash column chromatography to afford
the title compound as yellow oil (2.56 g, 78%). 1H NMR: 1.02-1.27 (m, 4H), 1.41-1.49 (m,
1H), 1.66—1.76 (m, 4H), 1.89 (d, 1H, J: 12.4 Hz), 2.88 (d, 1H, J: 3.2 Hz), 2.98 (dd, 1H, J:
9.2 Hz, 17.2 Hz), 3.13 (dd, 1H, J: 2.0 Hz, 17.2 Hz), 3.99—4.01 (m, 1H), 7.11—7.15 (m, 1H),
7.42 (d, 2H, J: 4.4 Hz), 7.93 (d, 1H, J: 8.0 Hz).
Example 48 3 -(tert-Butyldimethylsilyloxy)-3 -cyclohexyl(2-iodophenyl)propanone
| O OTBS
To a on of 3-Cyclohexy1—3—hydroxy—1—(2—iodophenyl)propan—1—one (2.56 g, 7.15
mmol) and DMAP (1.05 g, 8.58 mmol) in DMF (40 mL) was added TBSCl (1.62, 10.7). The
reaction mixture was stirred at rt for 18 h and poured into water (40 mL). The aqueous layer
was extracted with EtOAc (2 x 50 mL) and the combined organic layers were washed with
water (2 x 20 mL), brine (10 mL), dried (NaZSO4), filtered and concentrated. The crude was
purified by flash column chromatography to afford 106 as clear oil (3.15 g, 93%). 1H NMR:
0.01 (s, 3H), 0.08 (s, 3H), 0.86 (s, 9H), 1.12—1.24 (m, 6H), 1.43—1.52 (dt, 1H, J: 3.6 Hz, 15.2
Hz), 1.65—1.76 (m, 4H), 2.91 (dd, 1H, J: 6.8 Hz, 22.0 Hz), 3.1 (dd, 1H, J: 9.4 Hz, 22.0 Hz),
4.19—4.24 (m, 1H), 7.11 (dt, 1H, J: 2.4 Hz, 10.0 Hz), 7.40 (t, 1H, J= 9.6 Hz), 7.48 (dd, 1H, J
= 2.4 Hz, 10.4 Hz), 7.92 (d, 1H, J: 10.4 Hz).
e 49 (1R,3R)—3 -(tert—Butyldimethylsilyloxy)-3 -cyclohexyl(2-iodophenyl)propan-
1—01 and (lR,3S)—3 —(tert—butyldimethylsilyloxy)—3 hexyl— l —(2—
iodophenyl)propanol
WO 42237 2012/033245
OTBS | OH OTBS | OH OTBS
107 108
(separated by normal phase column chromatography)
A mixture of 106 (3.15 g, 6.67 mmol), BH3°SMe2 (0.63 mL, 6.67 mmol) and S—2—
methyl-CBS-oxazaborolidine (370 mg, 1.33 mmol) in THF (50 ml) was stirred at room
temperature for 16 h. Aqueous 6 M HCl (4 mL) was added and the mixture was stirred for 5
minutes. The mixture was poured into water (20 mL) and the aqueous layer was ted
with EtOAc (2 x 40 mL). The combined organic layers were washed with brine (20 mL),
dried 4), filtered and concentrated. The residue was purified by flash column
chromatography (3%—6% EtOAc/hexanes gradient). The two diastereomers 107 and 108 were
separated in this manner. The stereochemistry was confirmed by ping 107 and 108 on
a normal phase analytical silica gel TLC plate against an authentic sample of 108. An
authentic sample of 108 was prepared independently by an enantioselective aldol reaction as
outlined in Scheme 4. 1H NMR: (1R,3S): 0.15 (s, 3H), 0.18 (s, 3H), 0.87 (s, 9H), 1.08—1.27
(m, 5H), 1.52—1.68 (m, 4H), 1.75—1.89 (m, 4H), 4.02—4.10 (m, 1H), 4.91 (d, 1H, J: 9.6 Hz),
6.95 (t, 1H, J= 6.8 Hz), 7.37 (t, 1H, J= 7.4 Hz), 7.61 (d, 1H, J= 6.8 Hz), 7.78 (d, 1H, J= 7.2
Hz). 1H NMR: (1R,3R): 0.12 (s, 3H), 0.16 (s, 3H), 0.88—0.93 (m, 2H), 0.97 (s, 9H), 1.12—
1.17 (m, 1H), 1.27—1.31 (m ,2H), 1.57—1.79 (m, 5H), 1.91—2.07 (m, 3H), 3.70—3.72 (m, 1H),
4.19 (s, 1H), 5.20 (d, 1H, J= 10.4 Hz), 6.94 (t, 1H, J= 6.8 Hz), 7.38 (t, 1H, J= 7.4 Hz), 7.60
(d, 1H, J= 7.2 Hz), 7.77 (d, 1H, J= 7.2 Hz).
Example 50 (1R,3S)-3 -(tert—Butyldimethylsilyloxy)-3 -cyclohexyl(2-
iodophenyl)propyl4-methylbenzenesulfonate
| OH OTBS | OTS OTBS
To a solution of 107 or 108 (300 mg, 0.63 mmol) in dichloromethane (5 mL) was
added triethylamine (0.18 mL, 1.26 mmol) and DMAP (85 mg, 0.70 mmol. The reaction
mixture was stirred at room temperature for 5 min and p-toluenesulfonyl de (145 mg,
0.76 mmol) was added. The reaction mixture was refluxed for 18 h. The solvent was removed
under reduced pressure. The residue was dissolved in EtOAc (30 ml) and the organic layer
was washed with water (10 ml), satd aq NaHC03 (15 mL) and brine. The organic layer was
WO 42237
dried (NaZSO4), filtered and concentrated. The title compound was used in the next step
without further purification.
Example 51 (lR,3R)—3 -(tert—Butyldimethylsilyloxy)-3 -cyclohexyl- l -(2-
iodophenyl)propyl4-methylbenzenesulfonate
We _
I OH OTBS | OTs (:DTBS
(lR,3R)-3 —Butyldimethylsilyloxy)-3 -cyclohexyl- l -(2-iodophenyl)propyl4-
methylbenzenesulfonate was prepared as described in the above procedure. The title
compound was used in the next step without further purification.
Example 52 l-(( lS,3S)(tert—Butyldimethylsilyloxy)-3 -cyclohexyl- l -(2-
iodophenyl)propyl)- lH—imidazole
W+t§>—>©w©
| OTS OTBS | N OTBS
To a suspension of NaH (55 mg, 2.17 mmol) in dry DMF (4 mL) was added
imidazole (148 mg, 2.17 mmol). The solution was stirred for 2 h and a solution of (lR,3S)-3—
(tert—butyldimethylsilyloxy)-3 -cyclohexyl- l -(2-iodophenyl)propyl 4-methylbenzenesulfonate
(341 mg, 0.54 mmol) in DMF (2 mL) was added. The reaction mixture was heated at 60 CC
for 14 h. The reaction mixture was poured into water (10 mL) and the s layer was
extracted with EtOAc (2 x 20 mL). The combined organic layers were washed with water (2
x 10 mL), brine (10 mL), dried (NaZSO4), filtered and trated. The residue was purified
by flash column chromatography to afford 109 as clear gel (130 mg, 46%). 1H NMR: (1S,
3S) 0.03 (s, 3H), 0.05 (s, 3H), 0.97 (s, 9H), 1.11—1.31 (m, 5H), .59 (m, 2H), 1.68—1.79
(m, 4H), 2.20—2.23 (m, 2H), 3.59—3.62 (m, 1H), 5.75—5.79 (m, 1H), 7.01—7.13 (m, 3H), 7.17
(s, 1H), 7.34—7.37 (m, 1H), 7.73 (s, 1H), 7.93 (d, 1H, J: 7.8 Hz).
Example 53 l-(( lS,3R)(tert—Butyldimethylsilyloxy)cyclohexyl- l -(2-
iodophenyl)propyl)- lH—imidazole (7 8)
Wri>—»©.W©
| OTS OTBS | EN] OTBS
Compound 111 was prepared as described for compound 109 in the above procedure.
111 was isolated as a clear gel (42% over two steps). 1H NMR: (18, 3R) 0.05 (s, 3H), 0.07 (s,
3H), 0.97 (s, 9H), 1.12-1.29 (m, 5H), 1.47-1.50 (m, 1H), 1.69-1.77 (m, 3H), 1.82-1.85 (m,
2H), 2.20—2.28 (m, 1H), 2.39—2.47 (m, 1H), 3.56-3.60 (m, 1H), 5.63 (t, 1H, J= 7.4 Hz), 6.97-
6.98 (m, 1H), 7.04-7.11 (m, 2H), 7.31-7.34 (m, 2H), 7.45 (dt, 1H, J= 1.0 Hz, 7.6 Hz), 7.64
(s, 1H), 7.96 (dd, 1H, J= 1.2 Hz, 8.0 Hz).
Example 54 (S)((S)(tert—Butyldimethylsilyloxy)cyclohexylethyl)-5H-imidazo[5, l-
a]isoindole
(_7 OTBS TBS
109 109a
To a Vial containing 109 (65 mg, 0.12 mmol) was added ohexylmethylamine
(0.04 mL, 0.19 mmol), PPh3 (13 mg, 0.05 mmol) and DMF (4 mL). The mixture was
ed for 10 min and Pd(OAc)2 (6 mg, 25 umol) was added. The mixture was heated at 95
CC for 5 h. After cooling to rt, the mixture was diluted with ethyl acetate (15 mL) and passed
h a Celite pad. The filter cake was washed with ethyl acetate. The organic layer was
washed with water (3 x 10 mL), brine (10 mL), dried (NaZSO4), filtered and concentrated.
The crude residue was used directly in the next step.
Example 55 (S)((R)—2-((tert-butyldimethylsilyl)oxy)cyclohexylethyl)-5H-
imidazo[5,1—a]isoindole
ICE OTBS OTBS
111 111a
Compound 11121 was prepared as described in the above procedure. The crude residue
was used ly in the next step.
Example 56 (53c-yclohexyl2-((S)—5H—imidazo[5 1--a]]isoindolyl)ethanol (1417)
109a )1417
To a Vial containing crude 10921 (60 mg, 0.15 mmol) was added 1% HCl in ethanol (2
mL). The reaction mixture was heated at 50 CC for 3 h and poured into saturated aqueous
NaHC03 (5 mL). The aqueous layer was extracted with dichloromethane (2 x 15 mL). The
combined organic layers were dried (NaZSO4), filtered and trated. The residue was
purified by flash column chromatography to afford 1417 as a white solid (17 mg, 47% over 2
steps). 1H NMR: (1S, 2S) .28 (m, 5H), 1.40-1.42 (m, 1H), 1.67—1.83 (m, 4H), 1.91 (d,
1H, J: 12.4 Hz), .30 (m, 1H), 2.82 (br s, 1H), 3.80—3.83 (m, 1H), 5.52 (dd, 1H, J= 3.0
Hz, 10.8 Hz), 7.20 (s, 1H), 7.25—7.29 (m, 1H), 7.36—7.40 (m, 2H), 7.56 (d, 1H, J= 7.6 Hz),
7.84 (s, 1H). Absolute configuration of this diasteromer was confirmed by X—ray
crystallography of HBr: 1417 salt crystals (Figure 1).
Example 57 (R)cyclohexyl((S)-5H-imidazo [5 ,1-a]isoindol-5 -yl)ethanol (1418)
/ S 6TBS
N N/)
111a 1418
Compound 1418 was prepared as described for compound 11121 in the above
procedure. 1418 was isolated as a colorless solid (42% over 2 steps). 1H NMR: (1S, 2R)
0.97-1.26 (m, 5H), 1.32-1.39 (m, 1H), .67 (m, 2H), 1.71-1.80 (m, 3H), 2.00-2.06 (m,
1H),2.10—2.18(m, 1H), 2.55 (br s, 1H), 3.70-3.74 (m, 1H), 5.35 (t, 1H, J = 7.6 Hz), 7.14 (s,
1H), 7.19—7.23 (m, 1H), 7.34 (t, 1H, J = 7.6 Hz), 7.42 (d, 1H, J = 7.4 Hz), 7.52 (d, 1H, J = 7.4
Hz), 7.78 (s, 1H).
e 58 )hydroxy(5H—imidazo[5 ,1-a]isoindolyl)ethyl)
cyclohexanecarboxylic acid (143 6)
LiOH H20
-,,I
N—\\ If N "(OH \ N O
\—\\N (I)
1436
To a solution of 1426 (268 mg, 0.79 mmol) in ter 3:1 (4 mL) was added
lithium hydroxide monohydrate (99 mg, 2.36 mmol). The solution was allowed to stir for 18
h. The THF was removed under reduced pressure and the solution was neutralized to pH = 5
with 1M HCl. The solution was concentrated under reduced pressure and to the remaining
residue was added 20% MeOH/DCM. The residue was filtered through a plug of silica gel
and the plug was eluted with 200 mL 20% CM. The solution was concentrated to
afford the NLG-1436 as a light yellow solid 193 mg (75%). 1H NMR (DMSO—d6): 0.83—0.85
(m, 1H), 1.05—1.25 (m, 4H), 1.41—1.45 (m, 2H), 1.85—1.88 (m, 3H), 2.03—2.21 (m, 2H), 3.61—
3.64 (m, 1H), 5.35—5.42 (m, 1H), 7.11 and 7.13 (two s, 1H), 7.27 (t, 1H, J= 7.0 Hz), 7.37 (t,
1H, J= 7.4 Hz), 7.49 and 7.56 (two d, 1H, J= 7.5 Hz), 7.59 (d, 1H, J= 7.5 Hz), 7.88 and
7.92 (two s, 1H), 11.98 (br s, 1H).
Example 59 1-((trans)(hydroxymethyl)cyclohexyl)(5H—imidazo [5 ,1-a]isoindol-5 -
yl)ethanol (NLG- 1 43 0)
1430
To a solution of 1426 (100 mg, 0.30 mmol) in THF:EtOH (3 mL, 1:2 ratio) at rt, was
added NaBH4 (48.1 mg, 1.27 mmol) and LiCl (53.9 mg, 1.27 mmol). The reaction mixture
was stirred overnight. The solvents were removed under reduced pressure and the crude
residue was diluted with sat’d NH4C1 (20 mL). The product was extracted with EtOAc (3 x
mL). The combined c extract was dried over Na2SO4 and the solvent was removed
under reduced pressure. The crude product was purified by silica flash chromatography to
afford 1430 (78 mg, 85%). 1H NMR (a mixture of reomers) 0.94-1.13 (m, 4H), 1.14-
2.18 (m, 10H), 3.45 (d, J= 6.3 Hz, 2H), 3.73-3.78 (m, 1H), 5.30—5.38 (m, 1H), 7.17 (s, 1H),
7.22—7.27 (m merged with CHCl3, 1H), 7.33-7.44 (m, 2H), 7.54 (d, J= 7.6 Hz, 1H), 7.83 (d,
J= 10.4 Hz, 1H).
Example 60 (trans)hydroxy(5H-imidazo [5 ,1-a]isoindolyl)ethyl)-N—(2-
methylsulfonamido)ethyl)cyclohexanecarboxamide (1432)
o o
..1\/< ”HM
O“ ’
N N ZMe
//) HO //) HO
N N
1432
To a vial containing N-(2-aminoethyl)methanesulfonamide dihydrochloride (56.4 mg,
0.27 mmol) in DMF (4 mL) was added 1436 (83 mg, 0.25 mmol), DIPEA (197 mg, 1.53
mmol) and HATU (106 mg, 0.28 mmol). The reaction was stirred at RT for 18 h and
trated. The residue was purified by column tography on silica gel using
hexanes/EtOAc 10%—>60% gradient. The compound was isolated as a light yellow solid 72
mg (64%). 1H NMR: (CD3OD) 1.04—1.14 (m, 2H), 1.38—1.46 (m, 3H), 1.73—1.96 (m, 4H),
2.11—217 (m, 2H), 2.32—2.38 (m, 1H), 2.93 and 2.97 (two s, 3H), 3.15 (t, 1.7H, J= 6.4 Hz),
3.29—3.31 (m overlap with, 1H), 3.54—3.58 and 3.78—3.80 (two m, 1H), 5.57—5.66 (t and dd,
1H, J= 6.3 and J= 2.6, 9.2 H), 7.33-7.47 (m, 3H), 7.52 and 7.60 (two d, 1H, J= 7.6 Hz),
7.68-7.71 (m, 0.8 H), 7.91 (s, 0.4 H), 8.21 (dd, 0.6 H, J= 1.1, 8.4 Hz), 8.44 (s, 0.4 H), 8.53-
8.57 (m, 1H).
Example 61 (cis)(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)
hydroxyethyl)cyclohexanol
F F
0 ..\OH
/ N) HO HO
/ / N) /
N N
1379 1465
To a on of 79 (60 mg, (0.19 mmol) in dry THF (5 mL) at -78 0C under a
nitrogen atmosphere was added lithium trisiamylborohydride solution (1.0 M in THF) (0.38
mL, 0.38 mmol). The resulting mixture was stirred vigorously for 3 h at —78 °C and then
allowed to warm to room temperature (1 h). The reaction mixture was quenched with 1:1
HZO/EtOH (4 mL). The reaction was acidified with 6 N HCl followed by basif1cation with
sat’d K2CO3 solution. The s layer was extracted with dichloromethane (5 x 15 mL).
The combined organic layers were dried over NaZSO4, filtered and concentrated under
reduced pressure to afford a crude residue. The residue was purified by column
tography to afford 1465 35 mg (58 %). e of diastereomers 1H NMR: .15
(m, 10H), 2.35-2.51 (m, 1H), 3.66-3.79 (two m, 1H), 4.03 (br s, 1H), 5.48 (t, 1H, J = 5.1 Hz,
isomer), 5.67 (dd, 1H, J = 10.6, 2.8 Hz), 6.91—6.95 (m, 1H), 7.19 (d, 1H, J = 5.4 Hz), 7.25—
7.39 (m, 2H), 7.88 (two, s, 1H).
The mixtures of four diastereomers (1465) were ted by preparative chiral super
critical fluid chromatography (SFC) to afford the pure diasteromers 1482-1485. SFC was
performed on RegisPack 5 column in isopropanol/CO2: 0.2%DEA.
H lI‘OH
N "'OH
//) HO
1482 1483
F F
N ..\\\BO...OH:' N ...1>H)O.HOH
// Ho //) HO
N N
1484 1485
1482 and 1484 1H NMR 1)) 5 1.16 (d, .1: 6.1 Hz, 1H), 1.23 (d, .1: 17.8 Hz, 2H), 1.28
(s, 1H), .65 (m, 6H), 1.73 (s, 2H), 1.90— 2.14 (m, 1H), 2.48 (d, J= 15.2 Hz, 1H), 3.55
(s, 1H), 3.90 (s, 1H), 5.58 (s, 1H), 6.91— 7.08 (m, 1H), 7.16 (s, 1H), 7.41 (s, 2H), 7.96 (d, J=
28.8 Hz, 1H).
1483 and 1485 1H NMR: (013301)) 5 1.15 (d, J: 6.4 Hz, 1H), 1.26 (d, J = 24.4 Hz, 2H)
1.41—1.79 (m, 8H) 2.35 —2.50 (m, 1H), 3.65 (d, J= 7.8 Hz, 1H), 3.90 (s, 1H), 5.69 (dd, J=
.1, 2.4 Hz, 1H), 6.93 —7.08 (m, 1H), 7.18 (s, 1H), 7.41 (dd, J= 5.2, 3.5 Hz, 2H), 7.94 (s,
1H).
Example 62 2—(6-fluoro-5H-imidazo[5,1-a]isoindol—5—y1)—1—((trans)—4—
hydroxycyclohexy1)ethanone
F 0Y1?“ F
CHO ‘ O
+ 1)NaH
/_//N 2)AcOH,MeOH / N OH
Trt’N OTBS 3) HCI NA 0 H
4 126 154
To a suspension of NaH (1.11 g, 46.2 mmol) in THF (150 mL) at -10 0C was added a
solution of 126 (18.5 g, 50.8 mmol) in THF (75 mL) dropwise and the mixture was stirred for
45 min at 0 0C. Aldehyde 4 (20.0 g, 46.4 mmol) was added as a solution in THF (120 mL)
dro wise over ap period of 15 min. After stirring for 1 h at 0 °C the reaction mixture was
allowed to warm to rt and was stirred overnight. The solvent was distilled off under reduced
pressure and the crude was diluted with sat’d NH4Cl (80 mL), water (100 mL) and EtOAc
(100 mL). The solution was partitioned in a separatory funnel and the organic layer was
collected. The aqueous layer was extracted with EtOAc (3 x 150 mL) and the combined
organic fractions were washed with brine and dried over NaZSO4. The solution was filtered
and concentrated under d pressure to afford the crude product. The crude was stirred in
a mixture of acetic acid (20 mL) and MeOH (170 mL) at 90 CC for 1.5 h. After cooling to 50
0C the reaction mixture was treated with 6N HCl (20 mL) and stirred for 30 s. After
g to rt the solvent was distilled off and sat’d NaHC03 (200 mL) was added to the
residue followed by CHzClz (200 mL). The layers were separated and the aqueous layer was
extracted with CHzClz (2 x 100 mL). The combined organic layers were dried over Na2SO4
and the solvent evaporated under reduced re to afford the crude product which was
purified by using flash silica gel column chromatography to afford 154 (13.8 g, 95%).
Example 63 (trans)(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)
hydroxyethyl)cyclohexanol (1475)
NaBH4
N O H N9! HO H
154 1475
To a solution of 154 (13.8 g, 43.9 mmol) in MeOH (150 mL) at -10 to 0 0C, was
added NaBH4 (4.98 g, 131.71 mmol) in small portions and the solution was allowed to stir for
4 h. The solvent was distilled off under reduced re and the mixture was d by
addition of saturated NH4Cl solution (200 mL) and dichloromethane (200 mL) and the
mixture was stirred for 25 min. The organic layer was separated and the aqueous layer was
extracted with a mixture of 5% 2,2,2-trifluorethanol in CHzClz (5 x 75 mL). The combined
organic extract was washed with brine, dried (MgSO4) and concentrated under d
pressure to afford the crude. Purification by column chromatography afforded 1475 as a
white solid (13.24 g, 95%). 1H NMR (a mixture of diastereomers): .52 (m, 11H), 3.48—
3.68 (two m, 2H), 5.45 (t, 1H, J = 6.0 Hz), 5.65 (dd, 1H, J = 9.0, 3.0 Hz), 6.89—6.96 (m, 1H),
7.16 (s, 1H), 7.29—7.38 (m, 2H), 7.80 and 7.88 (two s, 1H).
2012/033245
The mixtures of the four diasteromers were separated by preparative chiral super
critical fluid chromatography to afford the pure diasteromers 1486-1489. Separation by SFC
was performed by a first passage through an AD-H column (Regis Technologies, Inc.) to
te compounds 1487, 1486 + 1488 and 1489. The peak comprising a mixture of 1486 +
1488 was separated by SFC in a Whelk—Ol column (Regis Technologies, Inc). All
separations were done in isopropanol:CO2 (10:90) + DEA 0.1%.
F F
‘IWBO‘OH H OH
N N
/ HO / ) HO
N N/
1486 1487
1488 1489
86 and NLG—1489 1H NMR: 1.03-1.26 (m, 6H), 1.43-1.47 (m, 2H), 1.93-1.96 (m,
2H), 2.45—2.50 (m, 3H), 3.48 (s, 1H), 3.61 (s, 1H), 5.62 (d, J= 8.9 Hz, 1H), 6.91 (t, J= 8.6
Hz, 1H), 7.12 (s, 1H), 7.26-7.30 (m merged with CHCl3, 2H), 7.79 (s, 1H).
NLG—1487 and 88 1H NMR: 0.95-1.33 (m, 6H), 1.61-1.64 (m, 1H), 1.79—1.82 (m,
1H), 1.91—2.04 (m, 4H), 2.28 (d, J: 14.4 Hz, 1H), 3.42—3.45 (m, 1H), 3.62 (s, 1H), 5.37 (t, J
= 4.9 Hz, 1H), 6.88 (t, J= 8.9 Hz), 7.05 (s, 1H), 7.24-7.31 (m merged with CHCl3, 2H), 7.84
(s, 1H).
Synthesis of ProDrugs of 1304
Example 64 Sodium 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl phosphate
(1434)
N N
/ 2 0“ /N/) O\P,ONa
"\ONa
1304 o
1434
To a solution of 1304 (150 mg, 0.53 mmol) and pyridine (85.7 uL, 1.1 mmol) in
dichloromethane (4 mL) at 0 °C was added POCl3 (99.3 uL, 1.06 mmol) and the solution was
allowed to warm to rt. After stirring overnight the reaction was quenched with NaHCO3 sat’d
(5mL), and stirred for 15 minutes. The solvents were evaporated under reduced pressure and
the solid was washed with THF (2 x 15 mL). The t was removed under reduced
pressure to afford the crude residue. The e was dissolved in DCM (5 mL) and passed
through a plug of NaZSO4 to remove water. The solvent was evaporated under reduced
pressure to afford 1434.
(33%). 1H NMR (a mixture of diastereomers): (CD3OD) 1.15-1.41 (m, 6H), 1.59-1.82 (m,
5H), 1.98—2.04 (m, 1H), 2.56—2.86 (two m, 1H), 3.57—3.58 and 4.08—4.11 (two m, 1H), 5.29 —
.54 (two m, 1H), 7.11 and 7.16 (two s, 1H), 7.25—7.47 (m, 3H), .60 (m, 1H), 7.83 and
7.95 (two s, 1H).
Example 65 l-cyclohexyl(5H—imidazo[5, l -a]isoindolyl)ethyl acetate
A solution of 1304 (80 mg, 0.28 mmol) and 4-dimethylaminopyridine (1.04 mg, 8.5
umol) in ne (3 ml) was treated with acetic anhydride (32 ”L, 0.34 mmol) at RT and the
on was stirred overnight. The solution was concentrated in vacuo and the residue was
dissolved in dichloromethane (10 ml) and washed successively with water (3 x 10 ml) and
dried over NaZSO4. The solution was concentrated and the crude was purified by flash
column chromatography to afford the desired product as yellow gel (75 mg, 82%). 1H
NMR(a mixture of diastereomers): 0.76—1.25 (m, 5H), 1.30—1.75 (m, 6H), 1.78—2.20 (m, 4H),
2.26—2.40 (m, 1H), 4.96—5.12 (m, 2H), .39 (m, 4H), 7.51—7.53 (m, 1H), 7.71 and 8.00
(two s, 1H).
Example 66 4-(1-cyclohexyl(5H—imidazo[5,1-a]isoindolyl)ethoxy)oxobutanoic
acid (142 8)
/ fl HO / B o o
N/ N N
1304 O OH
1428
A solution of 1304 (48 mg, 0.17 mmol) and 4-dimethylaminopyridine (0.83 mg, 6.8
umol) in dichloromethane (3 ml) was treated with succinic anhydride (19 mg, 0.19 mmol)
and DIPEA (33 ”L, 0.19 mmol) at RT and the reaction was d overnight. The solution
was poured into saturated NH4C1 (10 mL) and extracted with dichloromethane (3 x 10 ml).
The combined organic layers were dried over NaZSO4 and concentrated. The crude product
was crystallized from ethanol/chloroform (1:4) to afford 1428 as white solid (62 mg, 95%).
1H NMR(a mixture of diastereomers): 0.93-1.65 (m, 11H), 1.90—2.32 (m, 1H), .90 (m,
3H), 2.92—3.05 (m, 1H), 3.57 and 3.73 (m, 1H), 5.20—5.22 (m, 1H), 5.29—5.33 (m, 1H), 6.41—
6.78 (m, 1H), 7.16—8.00 (m, 5H), 12.20—12.80 (br s, 1H).
Example 67 1-cyclohexyl(5H—imidazo[5,1-a]isoindolyl)ethyl te (1431)
N O
//) HO / /) O
N N
1304 1431
A solution of 1304 (76 mg, 0.27 mmol) and 4-dimethylaminopyridine (1.0 mg, 8.1 umol) in
pyridine (3 ml) was treated with c ide (73 mg, 0.32 mmol) at RT and the
reaction was stirred overnight. The on was concentrated in vacuo and the residue was
dissolved in dichloromethane (10 ml) and washed successively with saturated NaHCO3 (10
mL), water (10 ml) and dried over NaZSO4. The solution was concentrated and the crude was
purified by flash column chromatography to afford 1431 (25 mg, 23%). 1H NMR (a mixture
of diastereomers): 0.88—1.25 (m, 7H), 1.62—1.90 (m, 4H), 2.15—2.25 (m, 1H), 2.49-2.58 (m,
1H), 5.19-5.21 (m, 1H), 5.34—5.37 (m, 1H), 7.16—7.28 (m, 4H), 7.40—7.64 (m, 4H), 7.80 (s,
1H), 8.00—8.02 (d, J = 6.3 Hz, 1H), 8.12—8.14(d, J = 5.7 Hz, 1H).
Example 68 1-cyclohexyl(5H—imidazo[5,1-a]isoindolyl)ethyl phenylcarbamate
(1427)
N N
/ ) HO / J o H
/ / N
N N (2], \Ph
1304 1427
To a on of 1304 (40 mg, 0.14 mmol) in THF (5 mL) was added triethylamine
(43 ”L, 0.31 mmol) followed by phenylisocyanate (17 ”L, 0.16 mmol). The reaction mixture
was d at RT for 18 h and concentrated. The crude t was purified using flash
column chromatography (4:1 EtOAc:MeOH) to afford 1427 as colorless gel (19 mg, 34%).
1H NMR (a mixture of diastereomers): 1.02-1.04 (m, 5H), 1.56-1.70 (m, 6H), 2.10—2.14 (m,
1H), 2.31—2.40 (m, 1H), 5.02—5.10 (m, 1H), 5.18—5.24 (m, 1H), 7.04—7.08 (m, 1H), 7.18—7.35
(m, 6H), 7.39—7.41 (m, 2H), 7.50 (d, J = 4 Hz, 1H), 7.65 (d, J = 8 Hz, 1H), 7.74 (s, 1H)
Example 69 l Procedure for the Synthesis of Prodrugs of 1304
To a Vial containing 1304 (0.5 mmol) in dichloromethane (5 mL) was added the appropriate
carboxylic acid (1.1 mmol), diisopropylethyl amine (3.0 mmol) and HATU (1.3 mmol). The
reaction mixture was d at rt for 48 h and poured into saturated aqueous NaHCO3 (10
mL) and the aqueous layer was extracted with dichloromethane (2 x 20 mL). The combined
organic layers were dried over NaZSO4, and concentrated. The crude product was dissolved in
dichloromethane (6 mL) and TFA (2 mL) was added. The reaction mixture was stirred at
room temperature for 2 h and concentrated. The residue was dissolved in water and solid
K2CO3 was added until the on was basic. The aqueous solution was extracted with
dichloromethane (2 x 20 mL). The combined organic layers were dried over NaZSO4, filtered
and concentrated to afford 1433, 1440, 1442 and 1443.
(2S)—1-cyclohexy1—2-(5H—imidazo[5, 1-
a]isoindoly1)ethy1 2-aminopropanoate
H NMR (a mixture of diastereomers) 0.96-1.06 (m, 2H), . 19 (m, 3H), 1.27 and
1.30 (two d, 3H, J = 7.0 Hz), 1.41—1.53 (m, 3H), 1.63—1.77 (m, 5H), 2.10-2.16 and 2.23—
2.26 (two m, 1H), 2.37—2.45 (m, 1H), 3.21 and 3.50 (two q, 1H, J = 7.0 Hz), 4.86—4.90,
.06—5.09 and 5.15—5.17 (three m, 2H), 7.19 (d, 1H, J = 3.2 Hz), 7.24-7.27 (m, 1H,
merged with form), 7.37 (dt, 1H, J = 2.8, 7.6 Hz), 7.49—7.55 (m, 2H), 7.69 (s, 1H)
(2S)—1-cyclohexy1—2-(5H—imidazo[5, 1-
a]isoindoly1)ethy1 pyrrolidine 77
carboxylate dihydrochloride
1442
1H NMR (a mixture of diastereomers) (CD3OD) 0.90—1. 17 (m, 5H), 1.4—1.75 (m, 10H),
2.11—2.18 (m, 2H), 2.36—2.42 (m, 1H), 2.82 (br s, 1H), 2.89-3.0 (m, 2H), 3.54-3.60 and
3.72—3.75 and 3.81—3.83 (three m, 1H), 4.93—5.25 (four m, 2H), 7.16 (s, 1H, J = 3.6 Hz),
7.22-7.16 (m, 1H), 7.35 (t, 1H, J = 7.40 Hz), 7.48-7.52 (m, 2H), 7.69 (d, 1H, J = 8.40 Hz)
(2S)-5 -(1-cyclohexy1—2-(5H—imidazo[5 ,1-
ndol-5 hy1) 1-methy1 2- 73
aminopentanedioate dihydrochloride
1443
NH2 HCI
1H NMR (a mixture of diastereomers) (DMOS-d6) 0.85—0.88 (m, 2H), 1.02—1. 12 (m, 3H),
1.34—1.38 (m, 1H), 1.53—1.67 (m, 5H), .20 (m, 2H), 2.60—2.73 (m, 2H), 3.41—3.53
(m, 2H), 3.74 and 3.87 (two 5, 3H), 4.44—4.52 (m, 1H), 5.81—5.3 (m, 1H), 7.50—7.53 (m,
2H), 7.69—7.70 (m, 1H), 7.81—7.72 (m, 1H), 7.95 (d, 1H, J: 6.4 Hz), 8.66 (br s, 3H), 9.52
(s, 1H)
Yield (%)
(2S)(1-cyclohexyl(5H—imidazo[5 ,1-
a]isoindol—5—yl)ethoxy)—3—methyl— 1 - 40
oxobutanaminium de hydrochloride
1H NMR (a mixture of diastereomers) (DMOS-d6) 0.86—0.98 (m, 6H), 1.01—1.12 (m, 4H),
1.42 and 1.44 (two s, 9H), .87 (m, 6H), 2.0—2.16(m, 2H), 2.33—2.43 (m, 1H), 4.04—
4.07 and 4.08—4.15 (two m, 1H), 4.91—5.29 (three m, 3H), 7.17 (s, 1H), 7.21—7.28 (m, 2H),
7.31—7.40 (m, 2H), 7.70 (s, 1H)
Biological Example 1 Human IDO protein cloning, expression and ation
Expression vectors for human indoleamine-2,3-dioxygenase (IDO) protein were
prepared by amplification of a 1219 bp fragment of the sequence present in vector
phIDO6His cDNA with primers 5’-ggagcatgctaATGGCACACGCTATGGAAAAC-3’ and
’-gagagatctACCTTCCTTCAAAAGGGATTTC-3’ and cloning the SphI—BglII 1213 bp
fragment into pQE70 (Qiagen), to yield vector pQE70-hIDO. This construct adds 2 extra
amino acids and a 6-Histidine tag to the inus of the natural human IDO protein while
preserving intact the natural start codon and N—terminus amino acid sequence. The amplified
allele of human IDO shows two polymorphisms with t to the ce deposited in
accession file P14902 of SwissProt database. These polymorphisms result in a P110S and
E119G amino acid changes.
Plasmid pQE70-hIDO was transformed into M15(pREP4) cells (Qiagen) and clones
were selected in LB-agar plates supplemented with carbenicillin 50 ug/mL and kanamycin 30
ug/mL. Protein expression was carried out by growing an overnight culture of the
M15pREP4/pQE70-hIDO clone in 100 mL LB supplemented with 100 ug/mL carbenicillin,
50 ug/mL kanamycin and 50 ug/mL of L-tryptophan (LBCKT ). 40 mL of this
e were inoculated into 750 mL of LBCKT for 4 hours at 37 °C. This culture was diluted
1:10 into LBCKT medium and cultured for another 2 hours at 37 0C until OD600 was higher
than 0.8. At this point the cultures were inoculated with Hemin to 7 uM and L-Tryptophan to
75 ug/mL and incubated at 37 °C for 2 h. Induction of protein expression was carried out by
supplementing the cultures with IPTG to 1 mM, PMSF to 200 uM, EDTA to 1 mM and
L-tryptophan to 50 ug/mL. tion was continued for additional 16 h at 25 °C. Cells were
2012/033245
collected by centrifugation, and the cell s were washed with PBS buffer supplemented
with 200 ”M PMSF and 1 mM EDTA and stored at -80 0C until protein purification.
The equivalent of 16 L of e were processed in one batch of purification. Cell
pellets were thawed, ended in 50 mM potassium phosphate buffer pH 7.0, 200 uM
PMSF, 1 mM EDTA, 1 mg/mL lysozyme to 10 mL per liter of bacterial culture and incubated
minutes on ice. Cells were then lysed by sonication. Cell lysates were centrifuged 20 min
at 20000 g and the supernatant was filtered through 0.45 pm filters. The filtered supernatant
was loaded onto a 60 mL phosphocellulose column equilibrated with 50 mM potassium
phosphate buffer pH 6.5 (KPB) at 1-3 mL/min. The column was washed with 3 volumes of
50 mM KPB, 3 volumes of 100 mM KPB and the protein was eluted with 15 volumes of a
linear gradient of 100-500 mM KPB. Fractions were collected and IDO activity assay was
performed by measuring kynurenine production. This was carried out by mixing 50 uL of
each fraction with 100 ”L of reaction mix to yield a final concentration of 50 mM KPB
buffer, 20 mM ascorbic acid, 200 ug/mL catalase, 20 ”M methylene blue and 400 ”M
L-tryptophan. Fractions demonstrating IDO activity were loaded onto a Ni-NTA purification
column (15 mL). This affinity purification column was washed with 10 volumes of 250 mM
KPB, 150 mM NaCl, 50 mM imidazole pH 8, and eluted with 10 volumes of buffer
containing 250 mM KPB, 150 mM NaCl and a 50 to 250 mM ole linear gradient.
Collected fractions were d by IDO enzymatic assay described above and the positive
fractions were pooled and trated by ultrafiltration and ed against a buffer
containing 250 mM KPB, 50% glycerol. This process yields ~ 8—10 mg of pure protein
(>98%) with a specific activity of 170 umol/h/mg.
Biological Example 2 g of IDO inhibitory compounds by enzymatic IDO assay
The IC50 values for each compound were determined by testing the activity of IDO in
a mixture containing 50 mM potassium phosphate buffer at pH 6.5; 70 nM purified human
IDO protein, 200 ”M L-tryptophan, 20 mM ate, 20 ”M methylene blue, 0.1% DMSO.
The inhibitors were initially diluted in DMSO at 100 mM and were diluted in potassium
phosphate 50 mM, added to the reaction mixture at final concentrations raging from 1 mM to
nM and ubated with the enzyme for 5 min at 25 OC. The reaction was started by
addition of L—tryptophan to 200 ”M and incubated 15 min at 37 °C. The reaction was stopped
by addition of 0.5 vol of 30% trichloroacetic acid and incubated 30 min at 60 0C to hydrolyze
N—formylkynurenine to kynurenine. The reaction was centrifuged at 3400 g for 5 min to
remove precipitated protein and the supernatant was d with 2% (w/v) of
p-dimethylaminobenzaldehyde in acetic acid. The reaction was incubated 10 min at 25 OC
and read at 480 nm in a spectrophotometer. Control samples with no IDO inhibitor, or with
no IDO enzyme or with the reference inhibitors 1-methyl-tryptophan (200 uM) and
menadione (1.2 uM) were used as controls to set the ters for the non-linear regressions
necessary for determination of the IC50 for each compound. Nonlinear regressions and
determination of the IC50 values were performed using the GraphPad Prism 4 software.
nds with an IC50 of less than 500 ”M were considered as active tors in this
assay.
Biological Example3 Determination of IDO inhibitory activity and toxicity in cell
based nurenine assay
293—T-RExTM cells (Invitrogen) constitutively express a tet operator binding repressor
protein and are maintained in DMEM, 10 % FBS, 1X Penicillin+Streptomycin, 2 mM
L-glutamine, 5 ug/mL blasticidin at 37 0C with a 5% C02 in air atmosphere and typically
split prior to confluency. Cells were passed by splitting the culture 1/10- by ng media
by aspiration, washing 1X with PBS, incubating with 0.25% trypsin/EDTA until the cells
detach, sing the cells in fresh growth media, and g at 1/ 10 dilutions in fresh
growth media. For long term eservation, cells are detached from the plate as
described above, collected by centrifugation, resuspended in freeze medium (growth medium,
%DMSO), stored in 1.8 mL cyropreservation vials (~ 2-5 X 106 cells per vial), in liquid
nitrogen vapor storage tanks.
IDOl— expressing RexTM cell lines were generated by stable transfection of
plasmid pcDNA-tetO-IDO expressing human IDO or murine IDO under the control of the
doxycycline—inducible CMV—tet promoter. Transfected cells were selected in DBZ medium
(DMEM, 10 % FBS, 1X Penicillin + Streptomycin, 2 mM L-glutamine, 5 ug/mL blasticidin
and 25 ug/mL Zeocin) at 37 °C with a 5% C02 in air atmosphere. Individual clones were
isolated by limiting dilution cloning from these tions. These clones were assayed for
IDO activity and the clones that showed the highest levels of IDO activity inducible by
doxycycline were used for subsequent cell based IDO assays.
To setup an IDO cell based activity assay, IDO—293—T—Rex cells were ted and
ended in DBZ media at 106 mL, and split into -lysine coated l plates
at 100,000 cells per well. 100 uL of Neutral medium (DBZ medium, 200 uM L—tryptophan)
or Induction media (Neutral medium mented with 5 uM doxycycline) are added to the
cells and incubated 28 h at 37 °C. After the IDO induction period, medium is removed and
replaced with ion or Neutral medium containing different concentrations of each
inhibitor (1 mM to 0.5 nM). The cells incubated in Neutral medium serve as negative control
of the assay. The cells incubated in Induction medium and without inhibitor serve as the
positive control of the assay. The incubation is carried out for 16 h at 37 0C in a cell culture
incubator. 200 uL of medium are transferred to U-bottom polypropylene 96—well plates
ning 25 uL of 30% TCA, incubated 30 s at 60 °C and centrifuged at 3400 g for 5
minutes. 150 uL of the clear supernatant is transferred to a polystyrene 96-well plate
containing 50 uL of 4% (w/v) of p-dimethylaminobenzaldehyde in acetic acid, incubated for
min. Kynurenine concentration is determined by measuring the absorbance at 480 nm.
To measure the toxicity of each compound after 16 h incubation with cells, cell
viability is measured via a WST-l assay (Roche) according to instructions from the
manufacturer. Briefly, after the incubation with each compound, medium is aspirated and
replaced with 100 mL of WST—l reagent, and incubated 30 min at 37 °C. Absorbance at 540
nm is correlated with the number of viable cells. Determination of IC50 (Kynurenine assay) or
LD50 (WST-l assay) is performed via non-linear sion analysis using GraphPad Prism
Biological Example 4 Reversal of IDO-Mediated Suppression of T- Cell Proliferation
by IDO Inhibitors.
Human monocytes were collected from peripheral mononuclear cells by
leukoapheresis and cultured overnight at 106 cells/well in a 96—well plate in RPMI 1640
medium supplemented with 10% fetal calf serum and 2 mM L-glutamine. Adherent cells
were retained and cultured for 7 days with 200 ng/ml IL—4, 100 ng/ml . Cells were
matured for 2 days with a cytokine cocktail containing TNF-oc, IL-1I3, IL-6 and PGE2 for
additional 2 days to induce dendritic cell maturation. At the end of maturation, loosely
adherent cells were detached by gentle aspiration and plated in V-bottom 96 well plates, at
5000 cells/well. These cells are >80% IDO+ dendritic cells. Human allogeneic T cells
) from normal donors were resuspended in RPMI 1640 supplemented with 100—200
U/mL IL-2 and 100 ng/mL anti-CD3 antibody and added to the wells. Serial dilutions of IDO
compounds dissolved in phenol red —free RPMI was added to yield a final concentration of
IDOi between 500 and l LLM. After incubation for 2-4 days, T cell proliferation was
measured by BrdU incorporation assay after an overnight pulse with BrdU labeling mix
(Roche Molecular Biochemicals). At the en of the pulse, the cells were fixed and incubated
with 100 u L/well anti-BrdU-POD antibody following the instructions from the
manufacturer. Plates were read in a microplate reader.
Alternatively, testing of IDO inhibitors in an in vitro mouse model of diated
suppression of T cell proliferation is performed by the following procedure. C57bl6 mice are
inoculated with 1x106 GMCSF tumor cells in the right flank. After 10-12 days, tumor
draining lymph nodes are ted and cells are stained with anti-CDllc and anti-B220
monoclonal antibodies. Cells are sorted by high—speed fluorescence activated cell sorting and
the CD1 20+ plasmacytoid dendritic cells are collected and seeded at 2000 well
in 96 well V—bottom plates. Splenocytes are collected from BM3 transgenic mice (in CBA
background) and collected by nylon wool ment. BM3 T cells (105 cells/well) are added
to each well in 200 u L of RPMI, 10% FCS, 50 u M [3-mercaptoetanol. Alternatively, T cells
are obtained from spleens of OT-I transgenic mice and added to the culture in ation
with OVA peptide. IDO inhibitors are added dissolved in RPMI at final concentrations
ranging from 1 mM to 10 nM. After 3 days of stimulation, cells are pulsed by 16 h with BrdU
or 3H-thymidine. Cells are collected, fixed and tested for BrdU incorporation ing the
instructions from the BrdU labeling kit cturer (Roche Diagnostics). If 3H-tymidine is
used to measure T cell proliferation, cells are harvested and dpm counts are measured in a
scintillation counter following procedures widely known in the art. Control CDllc+ cells
taken from the contralateral lymph node or CD1 lc+/ B220" cells (IDO' population) from the
TDLN are used as positive control for proliferation.
Biological Example 5 Pharmacological Value
Pharmacological values for compounds tested according to one or more of the
preceding examples are reported in the following table, including,
Human IDO IC50: this is the concentration of the compound at which we observe 50%
of enzymatic activity using recombinant human IDO under the assay conditions described in
one of the examples;
IC50 values are reported in ranges: A: < 1 LLM, B: 1 - 10 ”M, C: 10 - 100 ”M; D: >
100 uM.
Structure
2-(5H-imidazo[5, 1-a]isoind01y1)ethan01 B
ethyl 2-(5H-imidazo[5,1-a]isoind01—5—
y1)acetate
2—(5H—imidazo[5, 1-a]isoind01—5—y1)acetic
acid
2-(5H-imidazo[5,1-a]isoind01—5—y1)—N—
methylacetamide
(2-br0mostyry1)-5H-imidazo[5,1-
a]isoind01e
2—(6-ch10r0-5H-imidazo[5,1-a]isoind01—5—
y1)cyclohexy1ethan01
2—(6-ch10r0-5H-imidazo[5,1-a]isoind01—5—
y1)-1 -cyclohexy1ethan0ne
2012/033245
2-(5H-imidazo[5, 1 -a]isoind01—5 -y1)ethy1
2—(((1R,2R,5 sopr0py1—5—
methylcyc10hexy1)0xy)acetate
2—(6-ch10r0-5H-imidazo[5,1-a]isoind01—5—
1299
N y1)—1—cyclohexylethan01
tert-butyl (4-(2—(5H-imidazo[5, 1-
1300
a] isoindol-S -y1)acety1)pheny1)carbamate
1-(4-amin0pheny1)-2—(SH-imidazo [5 ,1-
1301
’. a] isoindol-S-y1)ethan0ne
tert-butyl (4-(1-hydr0xy(5H-
1302
A imidazo[5,1-a]isoind01—5-
y1)ethy1)pheny1)carbamate
1-(4-amin0pheny1)-2—(SH-imidazo [5 ,1-
1303
N a]isoind01—5 —y1)ethan01
1-cyc10hexy1—2—(5H-imidazo[5, 1-
1304
a]isoind01—5 -y1)ethan01
imidazo[5, 1-a]isoind01—5—y1)—1—(3 —
nitropheny1)ethan0ne
2—(5H-imidazo[5, 1-a]isoind01—5—y1)—1—(3 —
nitropheny1)ethan01
2-(5H-imidazo[5,1-a]isoind01y1)(2-
nitropheny1)ethan0ne
2-(5H-imidazo[5,1-a]isoind01y1)(2-
nitropheny1)ethan01
tert-butyl (2—(2—(5H-imidazo[5, 1-
a]isoindol-S-y1)acety1)pheny1)carbamate
tert-butyl (2—(1-hydr0xy(5H-
o[5,1-a]isoind01—5—
y1)ethy1)pheny1)carbamate
1-(2-amin0pheny1)(5H-imidazo[5,1-
a]isoind01—5-y1)ethan0ne
.0—O1-(2-amin0pheny1)(5H-imidazo[5,1-
a]isoind01—5 -y1)ethan01
1-(2—ch10r0pheny1)-2—(5H-imidazo[5, 1-
a]isoind01—5-y1)ethan0ne
1-(5H-imidazo[5,1-a]isoind01—5-y1)-2—
methylpropan-Z-ol
1-(2—ch10r0pheny1)-2—(5H-imidazo[5, 1-
a]isoind01—5 -y1)ethan01
1-(3-ch10r0pheny1)-2—(5H-imidazo[5, 1-
a]isoind01—5 han01
imidazo[5,1-a]isoind01y1)
phenylethanone
2—(5H-imidazo[5,1-a]isoind01y1)
phenylethanol
1-(2,4-dimethylfuran-3 -y1)-2—(6—flu0r0—
5H-imidazo[5,1-a]isoindol-S-y1)ethan01;
1-(3-ch10r0pheny1)-2—(5H-imidazo[5, 1-
a]isoind01—5-y1)ethan0ne
1-cyclohexy1-2—(6-flu0r0-5H-imidazo[5, 1-
a]isoind01—5-y1)ethan0ne
1-cyclohexy1-2—(6-flu0r0-5H-imidazo[5, 1-
a]isoind01—5 -y1)ethan01
2—(5H-imidazo[5,1-a]isoind01y1)
(tetrahydro-ZH-pyrany1)ethan01
h10r0-5H-imidazo[5,1-a]isoind01—5—
y1)cyclohexylethan01
(Z)—1-cyclohexy1(5H-imidazo[5 ,1-
a]isoind01y1)ethan0ne oxime
1-cyclopenty1(5H-imidazo[5, 1-
a]isoind01—5 -y1)ethan01
tert-butyl 4-(1-hydr0xy(5H-
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidinecarb0xy1ate
1-cyclohexy1(5H-imidazo[5,1-
1364
a]isoind01—5 hanamine
tert-butyl (3 -(1-hydr0xy(5H-
1367 imidazo[5,1-a]isoind01
yl)ethy1)pheny1)carbamate
1-(3 -amin0pheny1)(5H-imidazo[5, 1-
a]isoind01—5 -y1)ethan01
2—(5H-imidazo[5,1-a]isoind01y1)
(piperidiny1)ethan01
6-flu0r0-5H-imidazo[5, 1-a]isoind01y1)hydr0xyethy1)cyclohexano1;
1-cyc10hexy1-2—(9-meth0xy-5H-
imidazo[5,1-a]isoind01y1)ethan01
—(2—Cyclohexy1—2—hydr0xyethy1)—5H-
imidazo[5,1—a]isoind01—9—01
2—(8-ch10r0-5H-imidazo[5,1-a]isoind01—5—
y1)cyclohexylethan01;
1—(cyclohexeny1)(5H-
imidazo[5,1-a]isoindol-S-y1)ethan01;
1-cyclohexy1-2—(8-flu0r0-5H-imidazo[5, 1-
a]isoind01-5 -y1)ethan01;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5—
y1)—1—(1,4—di0xaspir0[4.5]decan—8—
y1)ethan01;
6-flu0r0-5H-imidazo[5, oind01-
-y1)hydr0xyethy1)cyclohexanone;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5—
y1)(4-methylenecyclohexy1)ethanol;
1—(cyclohex—3 —en—1—y1)—2—(5H—
imidazo[5,1-a]isoindol-S-y1)ethan01;
1-(4-(hydroxymethy1)cyc10hexy1)-2—(5H-
13 83
o[5,1-a]isoindol-S-y1)ethan01;
(4-(1-hydr0xy(5H-imidazo[5,1-
a]is0ind01—5-y1)ethy1)piperidin
y1)(thi0pheny1)methan0ne;
1-(4-(1-hydr0xy-2—(5H-imidazo[5, 1-
a]isoind01y1)ethy1)piperidin
y1)ethan0ne;
2—(5H-imidazo[5,1-a]isoind01y1)(4-
methylenecyclohexyl)ethanol;
2-(6-flu0r0-5H-imidazo[5,1-a]isoind01—5—
y1)- 1-(4-methylcyc10hexy1)ethan01;
1-cyclohexy1(5H-imidazo[5,1-
a]isoind01—5 -y1)ethanamine
2-(5H-imidazo[5,1-a]isoind01y1)(1-
methyl-1H-imidazoly1)ethan01;
2—(5H-imidazo[5,1-a]isoind01y1)
(thiazoly1)ethan01;
imidazo[5,1-a]isoind01y1)
(thiazol-S-y1)ethan01;
1-(4-(1-hydr0xy-2—(5H-imidazo[5, 1-
a]isoind01y1)ethy1)piperidiny1)-2,2—
dimethylpropan0ne;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5—
y1)(furany1)ethan01;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5—
y1)(1-methy1—1H-imidazol
y1)ethan01;
u0r0-5H-imidazo[5,1-a]isoind01—5—
y1)—1—(4—
(iodomethylene)cyclohexyl)ethanol;
1-cyclohexy1(5H-imidazo[5,1-
a] isoindol-S -y1)pr0pan01;
2—(5H—imidazo[5, 1 -a]isoind01—5—
y1)acet0nitrile;
2012/033245
1—cyclohexy1—3—(6—flu0r0—5H—imidazo[5, 1-
a]isoind01—5 -y1)pr0pan01;
1—Cyclohexy1—3-(5H-imidazo[5, 1-
a]isoind01-5 -y1)pr0pan01;
1-(4-(1-hydr0xy-2—(5H-imidazo[5, 1-
a]isoindol-S-y1)ethy1)piperidiny1)
phenylethanone;
—difluorocyclohexy1)—2—(6—flu0r0—
5H-imidazo[5,1-a]isoindol-S-y1)ethan01;
1-(4,4-difluorocyc10hexy1)-2—(5H-
imidazo[5,1-a]isoindol-S-y1)ethan01;
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5—
y1)(1-methy1—1H-imidazol
y1)ethan01;
1-(4-(cyc10propylmethylene)cyclohexyl)-
2-(6-flu0r0-5H-imidazo[5, 1-a]isoind01—5—
y1)ethan01;
Structure
F 2-(6-flu0r0-5H-imidazo[5,1-a]isoind01—5—
141 1 y1)(4-(pr0pan
\ ylidene)cyc10hexy1)ethan01;
\ (E)—5—(2—cyclohexy1viny1)-5H-
1412
N imidazo[5,1—a]isoindole;
2-(9-flu0r0-5H-imidazo[5, 1-a]isoind01—5—
1413
y1)(4-methylcyclohexy1)ethanol;
F \ »
F OH
1-(cyclohexen-1—y1)—2—(6—flu0r0—5H—
1414 O N imidazo [5 ,1-a]isoind01—5 han01;
\ 7 9/
(R)cyclohexy1—2-((R)-5H-imidazo[5, 1-
141 5
a]isoind01—5 -y1)ethan01
(S)—1—cyclohexy1—2-((R)-5H-imidazo[5, 1-
1416
a]isoind01—5 -y1)ethan01
(S)—1—Cyclohexy1—2—((S)—5H—imidaz0[5,1-
141 7 ..
a]isoind01—5 -y1)ethan01
cyc10hexy1—2—((S)-5H-imidazo[5 ,1-
1418 ”
a]isoind01—5 -y1)ethan01
1-cyc10hexy1—2—(5H-imidazo[5, 1-
1419 /
N . . .
/ A a]1somd01 5 e)ethan01_ _
1-c clohex 1-2— 5H-imidazo 5,1- y ( [
1420 E539 y.
/ A .
o d01—5-y1)ethy1 acetate
N )7/
1—(4—(2—
142 1 (benzyloxy)ethylidene)cyclohexy1)—2—
(5H-imidazo[5,1-a]isoind01—5-y1)ethan01
1-(1-(benzylsulfony1)piperidiny1)—2—
1422
(SH-imidazo [5 ,1-a]isoind01—5-y1)ethan01
1 -(4-(1-hydr0xy-2—(5H-imidazo[5, 1-
1423 a]isoindol-S-y1)ethy1)piperidiny1)
(pyrimidin-S -y1)ethan0ne
2-(3 ,4-diflu0r0pheny1)(4-(1-hydr0xy-2—
1424 (5H-imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidiny1)ethan0ne
cyclohexy1(4-(1-hydr0xy(5H-
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidiny1)methan0ne
methyl 4-(1-hydr0xy(5H-imidazo[5,1-
1426 a]isoind01—5—
y1)ethy1)cyclohexanecarboxylate
1-cyclohexy1(5H-imidazo[5,1-
a]isoind01-5 -y1)ethy1 phenylcarbamate
4-(1-cyclohexy1(5H-imidazo[5, 1 -
a]isoind01—5 -y1)eth0xy)0x0butan0ic
acid
4-(1-hydr0xy(5H-imidazo[5,1-
nd01—5 -y1)ethy1)cyclohexan01
1-(4-(hydroxymethy1)cyc10hexy1)-2—(5H-
imidazo[5,1-a]isoind01y1)ethan01
1-cyclohexy1(5H-imidazo[5,1-
a]isoind01—5-y1)ethy1 te
4-(1-hydr0xy(5H-imidazo[5,1-
NH a]1somd01 5 y1)ethy1) N (2- -
_ _ _ _ _
1432 N
/ B
N) HO
(methylsulfonamido)ethy1)cyclohexanecar
HN ,0 .
‘3’ boxamlde
0” \
(2 S)—1-(1-cyclohexy1—2-(5H-imidazo[5 ,1-
a]isoindol-S-y1)eth0xy)methy1—1-
oxobutan-Z-aminium chloride
sodium 1—cyclohexy1—2—(5H—imidazo[5, 1-
1434
a]isoind01—5-y1)ethy1 phosphate
4-(1-hydr0xy(5H-imidazo[5,1-
143 6 a]isoind01—5—
y1)ethy1)cyclohexanecarboxylic acid
1-(4-(1-hydr0xy-2—(5H-imidazo[5, 1-
ndol-S-y1)ethy1)piperidiny1)
(pyridiny1)ethan0ne
2—(5H-imidazo[5, 1 ind01—5 -y1)
(Spiro[2.5]octan—6—y1)ethan01
2-(4-flu0r0pheny1)(4-(1-hydr0xy-2—
143 9 (5H-imidazo[5,1-a]isoind01—5-
y1)ethy1)piperidiny1)ethan0ne
(ZS c) yclohexy1—2- 5H-imidazo 5,1-( [
1440 N C
/ A O
O a]isoind01—5-y1)ethy1 2-aminopr0pan0ate
H2NWt
1-(4-(2-hydr0xyethylidene)cyclohexy1)—2-
(5H-imidazo[5, 1-a]isoind01y1)ethan01
-cyclohexy1—2-(5H-imidazo[5 ,1-
a]isoind01—5-y1)ethy1 pyrrolidine-Z-
carboxylate
(2 S)—5—( 1 —cyclohexy1(5H-imidazo[5, 1-
a]isoind01—5-y1)ethy1) l-methyl 2-
aminopentanedioate
1—(4—((S)—1-hydr0xy-2—((S)-5H-
imidazo[5,1-a]isoind01—5—
yl)ethy1)piperidiny1)phenylethan0ne
(3—flu0r0—2-hydr0xypheny1)(4-(1-
hydroxy-Z-(SH-imidazo[5,1-a]isoind01—5—
y1)piperidiny1)methan0ne
4-(1-hydr0xy(5H-imidazo[5,1-
a]isoind01-5 -y1)ethy1)-N—
phenylpiperidinecarb0xamide
(4-flu0r0pheny1)(4-(1-hydr0xy-2—(5H-
o[5,1-a]isoind01—5—
y1)ethy1)piperidiny1)methan0ne
(ZS)amin0(4-(1-hydr0xy(5H-
imidazo[5,1-a]isoind01—5—
yl)ethy1)piperidiny1)-3 -pheny1pr0pan-
l—one
(4-(1-hydr0xy(5H-imidazo[5,1-
a] isoindol-S -y1)ethy1)piperidiny1)((S)-
pyrrolidiny1)methan0ne
(1R,4s)—4—(2—((S)—6—flu0r0—5H—
o[5,1-a]isoind01—5-yl)
hydroxyethyl)cyclohexy1 benzoate
(1R,4s)—4—(2—((S)—6—flu0r0—5H—
imidazo[5,1-a]isoind01—5-yl)
hydroxyethy1)cyclohexanol
1-(3 -(1-hydr0xy-2—(5H-imidazo[5, 1-
a]isoind01—5 -y1)ethy1)azetidiny1)
phenylethanone
3-(1-hydr0xy(5H-imidazo[5,1-
a]isoind01—5 -y1)ethyl)—N-pheny1azetidine-
l-carboxamide
tert—butyl 3 -(1-hydr0xy(5H-
imidazo[5,1-a]isoind01—5—
yl)ethy1)azetidine-l-carboxylate
tidiny1)(5H-imidazo[5,1-
a]isoind01—5 -y1)ethan01
tert—butyl 4—((S)—1—hydr0xy—2—((R)—5H—
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidinecarb0xy1ate
tert—butyl 4—((R)—1—hydr0xy—2—((R)—5H—
o[5,1-a]isoind01—5—
y1)ethy1)piperidinecarb0xy1ate
tert—butyl 4—((R)—1—hydr0xy—2—((S)—5H—
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidinecarb0xy1ate
tert—butyl 4—((S)—1—hydr0xy—2—((S)—5H—
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidinecarb0xy1ate
1-((1s,4s)—4-(benzy10xy)cyclohexy1)(6—
fluoro-SH-imidazo[5,1-a]isoind01—5—
y1)ethan01
2—(5H—imidazo[5, 1 ind01—5_y1)_ 1-
(pyridin-3 -y1)ethan01
(1r,4r)(2-(6-flu0r0-5H-imidazo[5, 1—
a]isoind01y1)— 1-
hydroxyethy1)cyclohexanol
4-((S)hydr0xy((R)-5H-imidazo[5,1-
a]isoind01—5 -y1)ethy1)-N—
phenylpiperidinecarb0xamide
4-((R)—1-hydr0xy((R)-5H-imidazo[5 ,1-
nd01—5 -y1)ethy1)-N—
phenylpiperidinecarb0xamide
4-((R)—1-hydr0xy((S)-5H-imidazo[5, 1-
nd01—5 -y1)ethy1)-N—
phenylpiperidinecarb0xamide
4-((S)hydr0xy((S)-5H-imidazo[5,1-
a]isoind01—5 -y1)ethy1)-N—
phenylpiperidinecarb0xamide
1—(4—((R)—1—hydr0xy—2—((S)—5H—
1480
imidazo[5,1-a]isoind01—5-
y1)ethy1)piperidiny1)phenylethan0ne
1—(4—((S)—1—hydr0xy—2—((S)—5H—
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidiny1)phenylethan0ne
(1R,4s)—4—((S)—2—((R)—6—flu0r0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
(1 S,4s)—4—((R)—2—((R)—6—flu0r0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
(1 4—((R)—2—((S)—6—flu0r0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
(1R,4s)—4—((S)—2—((S)—6—flu0r0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
(1 S,4r)—4—((S)—2—((S)—6—fluor0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
(1 S,4r)—4—((S)—2—((R)—6—fluor0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
(1R,4r)—4—((R)—2—((S)—6—flu0r0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
(1R,4r)—4—((R)—2—((R)—6—flu0r0—5H—
imidazo[5,1-a]isoind01—5-y1)
hydroxyethy1)cyclohexanol
1—(4—((S)—1—hydr0xy—2—((S)—5H—
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidiny1)(tetrahydr0-2H-
4-y1)ethan0ne
1—(4—((R)—1—hydr0xy—2—((R)—5H—
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidiny1)phenylethan0ne
H45 N—((1s,4s)(1-hydr0xy-2—(5H-
1492 O imidazo[5,1-a]isoind01—5-
y1)ethy1)cyc10hexy1)benzamide
1—(4—((S)—1—hydr0xy—2—((R)—5H—
imidazo[5,1-a]isoind01—5—
y1)ethy1)piperidiny1)phenylethan0ne
2-(5H-imidazo[5,1-a]isoind01—5-y1)(1-
(phenylcarbam0y1)piperidiny1)ethy1
phenylcarbamate
—1-hydr0xy((S)-5H-imidazo[5, 1-
a]is0ind01—5-y1)ethy1)-N—((1r,4R)
hydroxycyc10hexy1)piperidine-1 -
carboxamide
4-((S)hydr0xy((S)-5H-imidazo[5,1-
a]isoind01—5 -y1)ethy1)-N-(tetrahydr0-2H-
pyrany1)piperidinecarb0xamide
4-((S)hydr0xy((S)-5H-imidazo[5,1-
a]isoindol-S-y1)ethy1)-N—((1r,4S)
hydroxycyc10hexy1)piperidine
carboxamide
1 -((1r,4r)(benzyloxy)cyclohexy1)—2-
1498 O A
N HO (5H-1m1dazo[5,1-a]1somd01—5-y1)ethan01. . . .
WO 42237
(G 1 -(( 1r,4r)(benzy10xy)cyc10hexy1)—2—(6—
flu0r0-5H-imidazo[5,1-a]isoind01—5—
/ 3 H
HO y1)ethan01
1—(4—((R)—1—hydr0xy—2—((S)—5H—
imidazo[5,1-a]isoind01—5—
1500
y1)ethy1)piperidiny1)(tetrahydr0-2H-
pyrany1)ethan0ne
2—(5H-imidazo[5,1-a]isoind01—5-y1)
1501
(pyridiny1)ethan01
2—(5H-imidazo[5,1-a]isoind01—5—y1)_1_
1502
(pyridiny1)ethan01
4-((R)—1-hydr0xy((S)-5H-imidazo[5, 1-
1503 a]isoind01—5 -y1)ethy1)-N-(tetrahydr0-2H-
pyrany1)piperidinecarb0xamide
ohexy1((R)hydr0xy((S)-
1504 .= 5H-imidazo[5,1-a]isoind01—5-
y1)ethy1)piperidinecarb0xamide
N—((1r,4r)(1-hydr0xy(5H-
1505 imidazo[5,1-a]isoind01—5-
yl)ethy1)cyc10hexy1)benzamide
1 -((1r,4r)(benzyloxy)cyclohexy1)—2-
1506
(SH-imidazo [5 ,1-a]isoind01—5-y1)ethan01
O N—cyclopentyl-4—((R)— 1 —hydroxy—2—((S)—
5H—imidazo[5, 1 indol—5—
yl)ethyl)piperidine- l -carboxamide
uoro-5H-imidazo[5, l-a]isoindol-5—
y1)—1—(4—
(trifluoromethyl)cyclohexyl)ethanol
2—(5H-imidazo[5, l-a]isoindolyl)- l -(4-
(trifluoromethyl)cyclohexyl)ethanol
l—(4—((R)— l —hydroxy—2—((S)—5H—
imidazo[5, oindol—5—
yl)ethyl)piperidin- l -yl)(4-
(trifluoromethyl)phenyl)ethanone
4-((R)- l -hydroxy((S)-5H—imidazo[5, l-
a]isoindol—5—yl)ethyl)—N—(4—
(trifluoromethyl)phenyl)piperidine- l -
carboxamide
(4-((R)- l -hydroxy((S)—5H—imidazo[5, l -
a]isoindolyl)ethyl)piperidin- l -yl)(lH-
imidazol- l thanone
Biological Example 6 In Vivo Testing of IDO Inhibitors for Antitumor Activity in
Combination with Chemotherapeutic Agents
In vivo anti-tumor efficacy can be tested using modified tumor allograft ols. For
instance, it has been described in the literature that IDO inhibition can syngerize with
cytotoxic chemotherapy in immune-competent mice. Due to different susceptibilities of different
tumor cell lines to chemotherapeutic drugs and to immune mediated rejection, each IDO
inhibitor is tested alone and in combination with 2 different chemotherapeutic drugs in 4
different animal tumor models, represented by 4 ent mouse tumor cell lines, of different
tissue origin (colorectal, bladder, y and lung carcinoma), implanted subcutaneously in
syngeneic strains of mice. These cell lines have been selected based on their known
susceptibility to chemotherapeutic drugs, their partial response to IDO inhibitors as single
agents, their presumed pattern of IDO expression according to their tissue of origin, and their
ability to elicit an immune on.
For every animal tumor model, 2 ent chemotherapeutic drugs are tested in
te groups of mice according to the following list: 1] LLC tumor: cyclophosphamide and
paclitaxel; 2] EMT6 tumor: cyclophosphamide and paclitaxel; 3] CT26 tumor:
cyclophosphamide and doxorubicin; and 4] MB49 tumor: cyclophosphamide and gemcitabine.
The following chemotherapeutic drugs are used, at the indicated doses. The
maximum tolerated dose for the ing chemotherapeutic agents in mice depends on the
formulation, concentration, frequency of administration, route of administration and number of
doses. The chemotherapeutic drugs administered in ction with each IDO inhibitor drug
are: 1] Paclitaxel: 20 mg/kg/day i.p, every 4 days, 4 times (q4dx4) (in Cremophor); 2]
Doxorubicin: 5 mg/kg, once a week for 3 weeks (q7dx3); 3] Cyclophosphamide (CTX): 100
mg/kg, I.P., every 4 days, 4 times (q4dx4); 4] Gemcitabine: 80 mg/kg every 4 days, 4 times, i.p.
All animals receive a subcutaneous injection of a tumor forming dose of live tumor
cells (~ 50000 - 1000000 cells) ded in 0.1 mL of PBS or saline on day 1. Subcutaneous
injection forms a localized tumor that allows monitoring tumor growth over time.
To mimic the effect of IDO inhibitor drugs as therapeutic compositions,
administration of IDO inhibitor drugs begins at day 5-8 after tumor inoculation. Dosing, route of
stration, dosing frequency varies depending on the toxicity and pharmacokinetics profile
of each drug. Duration of the treatment is 2 weeks. Most preferably, drug is administered
continuously via oral gavage or dissolution in the drinking water. Alternatively, subcutaneous
slow release pellets or osmotic pumps containing 100 mg of each drug are implanted under the
AH26(9298372_1):RTK
skin by surgical ure. IDO inhibitor drug are administered at the maximum tolerated dose
or at a concentration corresponding to the LD50.
To test the antitumor activity of compounds 1357 and 1304, 200000 LLC murine
tumor cells were injected subcutaneously into eic C57Bl6 mice on day 0. Each treatment
group consists of 10 mice. On day 7, once the tumor is established and IDO expression is
induced in plasmacytoid dendritic cells at the tumor draining lymph nodes, a group of 10 mice
were surgically implanted (subcutaneously and on the opposite flank to the tumor), with osmotic
pumps loaded with 200 uL of a 30 mg/mL solution of compounds 1357 or 1304 in
cremaphor:EtOH:saline (10:10:80). These pumps release 1 uL of solution per hour for a period
of 8 days, achieving a steady state plasma concentration of drug of ~ 0.5-3 micromolar. From
days 15 to 24 compound administrations continued via two s.c. daily doses of 1 mg each. In the
case of compound 1304, mice were optionally treated with cyclophosphamide 100 mg/kg by
eritoneal injection on days 9, 13 and 15 post-tumor innoculation, either as a single agent or
in combination with nd 1304. The results of these tests indicate that compounds 1357
and 1304 have a significant antitumor effect either as a single agent or when administered in
combination with chemotherapy. The eutic effect is observed as a d rate of tumor
growth, which has an impact on median survival time and in overall survival on.
The average tumor volume over time of two groups of 10 mice each was studied.
The control group was treated with vehicle, while the ent groups received osmotic pumps
with compound 1357 as described above. The tumor volumes were fitted to an exponential
growth equation and the fitted parameters were compared using GraphPad software. The data
te a tically significant differences between the two curves (p<0.0001).
A survival plot of the same groups of mice described immediately above was
generated. The logrank test indicates a statistically significant difference in median survival time
when animals were treated with compound 1357 as a single agent.
The average tumor volume over time of four groups of 10 mice each was studied.
The control group was treated with vehicle, while the treatment groups received either
cyclophosphamide chemotherapy, osmotic pumps with compound 1304, or a combination
therapy of hosphamide with compound 1304. The data shows that this tumor is very
AH26(9298372_1):RTK
sensitive to the effects of treatment with nd 1304 either as a single agent or in
combination with chemotherapy.
A al plot of the same groups of mice described immediately above was
generated. The logrank test indicated a statistically significant difference in median survival
time when animals were treated with compound 1304, either as a single agent or in combination
with cyclophosphamide. The long term survival fraction observed for treatment with 1304 is
exceptionally high, with 70-80% of the mice being tumor free after 60 days.
AH26(9298372_1):RTK
WE
Claims (72)
1. A compound of the formula, (R1)n or a pharmaceutically acceptable salt thereof, wherein bond α is a single or double bond; n is 0, 1, 2, 3, or 4; each R1 is independently halogen, cyano, nitro, C1-6alkyl, C1-6haloalkyl, -OR, -N(R)2, -SR, -C(O)OR, -C(O)N(R)2, -C(O)R, -S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R, OR, -S(O)2N(R)2, -OC(O)R, -OC(O)OR, N(R)2, -N(R)C(O)R, -N(R)C(O)OR, or -N(R)C(O)N(R)2; R2 is –C1-4alkyl-RA or –C2-4alkenyl-R3 when bond α is a single bond; and R2 is =C(H)RA when bond α is a double bond; wherein RA is –CN, –C(O)R3, –C(O)OR3, (R3)(RC), –C(ORB)(R3)(RC), -C(NHRB)(R3)(RC), or ORC)R3, wherein RB is hydrogen, C1-6alkyl, C1-6haloalkyl, -C1-6alkyl-RB1, -C(O)R3, -C(O)N(H)R3, or -S(O)2R3, -C(O)(CH2)1-4COOR, -C(O)(CH2)1-4(NR)COOR, – C(O)CH(NH2)(RD), -S(O)2OR3, -S(O)2N(R3)2, -CH2-OP(O)2(OR)2, or – P(O)(OR3)2, wherein RB1 is cyano, nitro, C1-6alkyl, C1-6haloalkyl, -OR, -N(R)2, -SR, -C(O)OR, -C(O)N(R)2, -C(O)R, -S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R, OR, -S(O)2N(R)2, -OC(O)R, -OC(O)OR, -OC(O)N(R)2, -N(R)C(O)R, (O)OR, or -N(R)C(O)N(R)2; RD is hydrogen, methyl, -CH(CH3)2, -CH2CH(CH3)2, -CH(CH3)(CH2CH3), benzyl, 4-hydroxybenzyl, -indolyl), -CH2SH, -CH2CH2SCH3, -CH2OH, -CH(CH3)OH, -(CH2)4-NH2, -(CH2)3-N(H)C(=NH)NH2, -CH2(4-imidazolyl), OH, -CH2CH2COOH, -CH2CONH2, -CH2CH2CONH2; AH26(9298372_1):RTK each R3 is ndently hydrogen, C1-6alkyl, C1-6haloalkyl, aryl, heteroaryl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 membered heterocyclyl, arylC1-6alkyl-, heteroarylC1-6 alkyl-, C3-8cycloalkylC1-6alkyl-, C3-8cycloalkenylC1-6alkyl-, (3-10 membered heterocyclyl)C1-6alkyl-, or (heteroaryl)-(3-10 membered heterocyclyl)-, wherein the alkyl, cloalkyl, cloalkenyl, 3-10 membered cyclyl, C3-8cycloalkylC1-6alkyl-, C3-8cycloalkenylC1-6alkyl-, (3-10 ed heterocyclyl)C1-6alkyl-, and (heteroaryl)-(3-10 membered cyclyl)-, are each optionally and independently substituted by one =R32 group and each optionally substituted and ndently by one, two, three, or four R31 groups; the aryl, heteroaryl, arylC1-6alkyl-, and heteroarylC1-6alkyl- groups, are each optionally substituted by one, two, three, or four R31 groups; wherein each R31 is independently halogen, cyano, nitro, C1-6alkyl, -C1-6alkyl-R33, C1-6haloalkyl, -OR, -N(R)2, -SR, -C(O)OR, -C(O)N(R)2, - C(O)N(OH)R, -C(O)R, -C(NR11)R, -C(NR11)N(R11)R, -S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R, -S(O)2OR, -S(O)2N(R)2, -OC(O)R, -OC(O)OR, -OC(O)N(R)2, -N(R)C(O)R, -N(R)C(O)OR, -N(R)C(O)N(R)2, wherein R33 is cyano, -OR, -N(R)2, -SR, -C(O)OR, -C(O)N(R)2, , -S(O)R, -S(O)OR, -S(O)N(R)2, R, -S(O)2OR, -S(O)2N(R)2, -OC(O)R, -OC(O)OR, -OC(O)N(R)2, -N(R)C(O)R, -N(R)C(O)OR, or -N(R)C(O)N(R)2; R32 is =O, =S, =N(R), =N(OR), =C(R34)2, =(spiro-C3-8cycloalkyl), or =(spiro-(3-10 membered heterocyclyl)), n each R34 is independently hydrogen, halogen, cyano, C1-6alkyl, - C1-6alkyl-OR, C1-6haloalkyl, C3-8cycloalkyl, or 3-10 membered heterocyclyl; or both R34 taken er with the atom to which they are both attached form a monocyclic C3-8cycloalkyl or monocyclic 3-8 membered heterocyclyl; RC is hydrogen or C1-6alkyl; AH26(9298372_1):RTK each R is independently en or R10, wherein R10 is C1-6alkyl, C1-6haloalkyl, aryl, heteroaryl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 membered cyclyl, arylC1-6alkyl, heteroarylC1-6alkyl-, C3-8 cycloalkylC1-6alkyl-, C3-8cycloalkenylC1-6alkyl-, or (3-10 membered heterocyclyl)C1-6alkyl-, each R10 optionally tuted by one, two, three, or four groups that are each independently halogen, cyano, nitro, C1-6alkyl, C1-6haloalkyl, -OR11, -N(R11)2, -SR11, -C(O)OR11, -C(O)N(R11)2, -C(O)R11, -S(O)R11, -S(O)OR11, -S(O)N(R11)2, -S(O)2R11, -S(O)2OR11, -S(O)2N(R11)2, -OC(O)R11, OR11, -OC(O)N(R11)2, -N(R11)C(O)R11, -N(R11)C(O)OR11, -N(R11)C(O)N(R11)2, -N(R11)S(O)2R11, or – C(O)-(3-10 membered heterocyclyl), wherein each R11 is independently hydrogen or C1-6alkyl.
2. The compound of claim 1 wherein bond α is a single bond.
3. The compound of claim 1 or 2, wherein R2 is lkyl-RA.
4. The compound of claim 1 or 2, wherein R2 is –CH2-RA, –CH2CH2-RA, -C(H)(CH3)CH2-RA, or -C(H)=C(H)R3.
5. The nd of claim 1 or 2, wherein R2 is –CH2-RA.
6. The compound of any one of claims 1 – 5, wherein RA is –C(O)R3 or –C(ORB)(R3)(RC).
7. The compound of any one of claims 1 – 5, wherein RA is -C(NHRB)(R3)(RC), or -C(=N-ORC)R3.
8. The compound of any one of claims 1 – 5, wherein RA is -C(NHRB)(R3)(RC), wherein RB is hydrogen, C1-6alkyl, or -C(O)C1-6alkyl.
9. The compound of any one of claims 1 – 5, wherein RA is -C(NH2)(R3)(RC).
10. The compound of any one of claims 1 – 5, wherein RA is –C(O)R3.
11. The nd of any one of claims 1 – 5, wherein RA is )(R3)(RC).
12. The compound of any one of claims 1 – 5, wherein RA is –CH(OH)(R3). AH26(9298372_1):RTK
13. The compound of any one of claims 1 – 12, n R3 is hydrogen, C1-6alkyl, aryl, heteroaryl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 ed heterocyclyl, or C3-8cycloalkylC1-6alkyl-, wherein the C1-6alkyl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 ed heterocyclyl, and C3-8cycloalkylC1-6alkyl-, are each optionally substituted by one =R32 group and one or two R31 groups; and the aryl and heteroaryl , are each optionally substituted by one or two R31 groups.
14. The compound of any one of claims 1 – 12, wherein R3 is aryl, heteroaryl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 membered heterocyclyl, or C3-8cycloalkylC1-6alkyl-, wherein the C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 membered heterocyclyl, and C3-8cycloalkylC1-6 alkyl-, are each optionally and ndently substituted by one =R32 group and each optionally and independently tuted by one or two R31 groups; and the aryl and heteroaryl groups, are each optionally substituted by one or two R31 groups.
15. The compound of any one of claims 1 – 12, wherein R3 is phenyl, a five or six membered heteroaryl, monocyclic C5-8cycloalkyl, monocyclic C5-8cycloalkenyl, a five or six membered monocyclic cyclyl, or (monocyclic C5-8cycloalkyl)C1-6 alkyl-, n the C5-8cycloalkyl, C5-8cycloalkenyl, 5 - 6 membered cyclyl, and C5-8cycloalkylC1-6 alkyl-, are each optionally and independently substituted by one =R32 group and each optionally and ndently substituted by one or two R31 groups; and the phenyl and heteroaryl groups, are each optionally substituted by one or two R31 groups.
16. The compound of any one of claims 1 – 12, wherein R3 is phenyl or a five or six membered heteroaryl, each optionally substituted by one or two R31 groups.
17. The compound of any one of claims 1 – 12, wherein R3 is clic C5-8cycloalkyl, monocyclic C5-8cycloalkenyl, a five or six membered monocyclic heterocyclyl, or (monocyclic C5-8cycloalkyl)C1-6alkyl-, each optionally substituted by one =R32 group and one or two R31 groups. (R31)m
18. The compound of any one of claims 1 – 12, wherein R3 is p , wherein bond a is a single bond or a double bond; m is 0, 1, or 2; AH26(9298372_1):RTK p is 0 or 1; and when bond a is a single bond, then Z is –C(R36)2-, –C(=R32)-, -N(R35)-, or –O-, wherein R35 is en, C1-6alkyl, -C(O)R, -S(O)2R, -C(O)OR, -C(O)N(R)2, -S(O)2OR, or -S(O)2N(R)2; and when bond a is a double bond, then Z is –C(R36)= or –N=; each R36 is independently hydrogen or R31.
19. The compound of claim 18, wherein when bond a is a single bond, then Z is –C(R36)2- or -C(=R32)-; and when bond a is a double bond, then Z is )= or –N=.
20. The compound of claim 18, wherein bond a is a single bond; and Z is –C(R36)2- or -C(=R32)-.
21. The compound of claim 18, wherein bond a is a single bond; and Z is -N(R35)- or –O-.
22. The compound of claim 2, wherein n is 0 or 1; each R1 is independently halogen, -OR, -N(R)2, or -SR; R2 is –CH2-RA, –CH2CH2-RA, or -C(H)=C(H)R3; and wherein RA is –C(O)R3, or –C(ORB)(R3)(RC), wherein RB is hydrogen; each R3 is independently hydrogen, C1-6alkyl, aryl, heteroaryl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 membered cyclyl, or C3-8cycloalkylC1-6alkyl-, the C1-6alkyl, C3-8cycloalkyl, C3-8cycloalkenyl, 3-10 membered heterocyclyl, and C3-8cycloalkylC1-6alkyl-, are each optionally and independently substituted by one =R32 group and each optionally and independently substituted by one or two R31 groups; the aryl and heteroaryl groups, are each optionally substituted by one or two R31 groups; wherein each R31 is independently halogen, cyano, nitro, C1-6alkyl, -C1-6alkyl-R33, C1-6haloalkyl, -OR, , -SR, R, -C(O)N(R)2, -C(O)R, AH26(9298372_1):RTK -S(O)R, -S(O)OR, -S(O)N(R)2, -S(O)2R, -S(O)2OR, -S(O)2N(R)2, -OC(O)R, -OC(O)OR, -OC(O)N(R)2, -N(R)C(O)R, -N(R)C(O)OR, -N(R)C(O)N(R)2, wherein R33 is -OR, -N(R)2, or -SR; R32 is oxo, =C(R34)2, =(spiro-C3-8cycloalkyl), or =(spiro-(3-10 membered heterocyclyl)), wherein each R34 is independently hydrogen, halogen, C1-6alkyl, or C3-8cycloalkyl; and RC is hydrogen or kyl.
23. The compound of claim 22 of the formula, (R1)n N .
24. The compound of claim 23, wherein R3 is aryl, heteroaryl, cloalkyl, C3-8cycloalkenyl, or 3-10 membered heterocyclyl, wherein the C3-8cycloalkyl, C3-8cycloalkenyl, and 3-10 membered cyclyl are each optionally substituted by one =R32 group and one, two, three, or four R31 ; and the aryl and heteroaryl are each optionally substituted by one, two, three, or four R31 groups.
25. The compound of claim 24 of the formula, (R1)n N RC (R31)m Z p , wherein bond a is a single bond or a double bond; m is 0, 1, or 2; p is 0 or 1; and AH26(9298372_1):RTK when a is a single bond, then Z is –C(R36)2-, –C(=R32)-, -N(R35)-, or –O-, wherein R35 is hydrogen, C1-6alkyl, -C(O)R, -S(O)2R, -C(O)OR, -C(O)N(R)2, -S(O)2OR, or -S(O)2N(R)2; and when a is a double bond, then Z is –C(R36)= or –N=; and each R36 is independently hydrogen or R31.
26. The compound of any one of claims 1-22 of the formula, (R1)n n the stereoisomeric configuration of -1 (C-1) and carbon-3 (C-3) are respectively (R, R).
27. The compound of any one of claims 1-22 of the formula, (R1)n wherein the stereoisomeric configuration of carbon-1 and carbon-3 are tively (R, S).
28. The compound of any one of claims 1-22 of the formula, (R1)n wherein the stereoisomeric configuration of -1 and carbon-3 are respectively (S, R).
29. The compound of any one of claims 1-22 of the formula, AH26(9298372_1):RTK (R1)n wherein the stereoisomeric configuration of carbon-1 and carbon-3 are respectively (S, S).
30. The compound of any one of claims 1-22 of the formula, (R1)n wherein the stereoisomeric configuration of carbon-1 and carbon-3 are respectively (S, R) or (S,S), and wherein R3 is cyclohexyl and R31 is OR
31. The compound of any one of claims 1-22 of the a, (R1)n wherein the stereoisomeric configuration of carbon-1 and carbon-3 are respectively (S, R), or (S,S) and wherein R3 is piperidine and R31 is -C(O)R or -C(O)(NHR).
32. The nd of claim 1 that is 2-(5H-imidazo[5,1-a]isoindolyl)ethanol; ethyl 2-(5H-imidazo[5,1-a]isoindolyl)acetate; (E)(2-bromostyryl)-5H-imidazo[5,1-a]isoindole; 2-(6-chloro-5H-imidazo[5,1-a]isoindolyl)cyclohexylethanol; 2-(6-chloro-5H-imidazo[5,1-a]isoindolyl)cyclohexylethanone; 2-(5H-imidazo[5,1-a]isoindolyl)ethyl2-(((1R,2R,5S)isopropyl methylcyclohexyl)oxy)acetate; utyl (5H-imidazo[5,1-a]isoindolyl)acetyl)phenyl)carbamate; 1-(4-aminophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanone; tert-butyl (4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)phenyl)carbamate; AH26(9298372_1):RTK 1-(4-aminophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(3-nitrophenyl)ethanone; 2-(5H-imidazo[5,1-a]isoindolyl)(3-nitrophenyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(2-nitrophenyl)ethanone; 2-(5H-imidazo[5,1-a]isoindolyl)(2-nitrophenyl)ethanol; tert-butyl (2-(2-(5H-imidazo[5,1-a]isoindolyl)acetyl)phenyl)carbamate; tert-butyl (2-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)phenyl)carbamate; 1-(2-aminophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanone; 1-(2-aminophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 1-(2-chlorophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanone; 1-(5H-imidazo[5,1-a]isoindolyl)methylpropanol; 1-(2-chlorophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 1-(3-chlorophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)phenylethanone; 2-(5H-imidazo[5,1-a]isoindolyl)phenylethanol; -dimethylfuranyl)(6-fluoro-5H-imidazo[5,1-a]isoindolyl)ethanol; 1-(3-chlorophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanone; ohexyl(6-fluoro-5H-imidazo[5,1-a]isoindolyl)ethanone; 1-cyclohexyl(6-fluoro-5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(tetrahydro-2H-pyranyl)ethanol; 2-(7-chloro-5H-imidazo[5,1-a]isoindolyl)cyclohexylethanol; (Z)cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethanone oxime; opentyl(5H-imidazo[5,1-a]isoindolyl)ethanol; tert-butyl 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine carboxylate; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethanamine; tert-butyl (3-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)phenyl)carbamate; 1-(3-aminophenyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 4-(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)hydroxyethyl)cyclohexanol; 1-cyclohexyl(9-methoxy-5H-imidazo[5,1-a]isoindolyl)ethanol; 5-(2-cyclohexylhydroxyethyl)-5H-imidazo[5,1-a]isoindolol; 2-(8-chloro-5H-imidazo[5,1-a]isoindolyl)cyclohexylethanol; 1-(cyclohexenyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; AH26(9298372_1):RTK 1-cyclohexyl(8-fluoro-5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(1,4-dioxaspiro[4.5]decan anol; 4-(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)hydroxyethyl)cyclohexanone; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(4-methylenecyclohexyl)ethanol; 1-(cyclohexenyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 1-(4-(hydroxymethyl)cyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; (4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)(thiophen hanone; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)ethanone; 2-(5H-imidazo[5,1-a]isoindolyl)(4-methylenecyclohexyl)ethanol; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(4-methylcyclohexyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(thiazolyl)ethanol; imidazo[5,1-a]isoindolyl)(thiazolyl)ethanol; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)-2,2- dimethylpropanone; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(furanyl)ethanol; (1S)cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethanol; (1R)cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(4- (iodomethylene)cyclohexyl)ethanol; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)propanol; 2-(5H-imidazo[5,1-a]isoindolyl)acetonitrile; 1-cyclohexyl(6-fluoro-5H-imidazo[5,1-a]isoindolyl)propanol; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)propanol; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) phenylethanone; 1-(4,4-difluorocyclohexyl)(6-fluoro-5H-imidazo[5,1-a]isoindolyl)ethanol; 1-(4,4-difluorocyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(1-methyl-1H-imidazolyl)ethanol; 1-(4-(cyclopropylmethylene)cyclohexyl)(6-fluoro-5H-imidazo[5,1-a]isoindol yl)ethanol; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(4-(propan ylidene)cyclohexyl)ethanol; AH26(9298372_1):RTK (E)(2-cyclohexylvinyl)-5H-imidazo[5,1-a]isoindole; 2-(9-fluoro-5H-imidazo[5,1-a]isoindolyl)(4-methylcyclohexyl)ethanol; 1-(cyclohexenyl)(6-fluoro-5H-imidazo[5,1-a]isoindolyl)ethanol; cyclohexyl((R)-5H-imidazo[5,1-a]isoindolyl)ethanol; (R)cyclohexyl((R)-5H-imidazo[5,1-a]isoindolyl)ethanol; (R)cyclohexyl((S)-5H-imidazo[5,1-a]isoindolyl)ethanol; (S)cyclohexyl((S)-5H-imidazo[5,1-a]isoindolyl)ethanol; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolylidene)etanol; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl acetate; 2-(benzyloxy)ethylidene)cyclohexyl)(5H-imidazo[5,1-a]isoindol yl)ethanol; 1-(1-(benzylsulfonyl)piperidinyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) (pyrimidinyl)ethanone; 2-(3,4-difluorophenyl)(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)piperidinyl)ethanone; cyclohexyl(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidin yl)methanone; methyl 4-(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexanecarboxylate; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl phenylcarbamate; 4-(1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethoxy)oxobutanoic acid; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)cyclohexanol; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl benzoate; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-(2- (methylsulfonamido)ethyl)cyclohexanecarboxamide; (2S)cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethylamino butanoate; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl dihydrogen phosphate; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)cyclohexanecarboxylic acid; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)(pyridin- 4-yl)ethanone; imidazo[5,1-a]isoindolyl)(spiro[2.5]octanyl)ethanol; 2-(4-fluorophenyl)(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol AH26(9298372_1):RTK yl)piperidinyl)ethanone; (2S)cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl 2-aminopropanoate; 1-(4-(2-hydroxyethylidene)cyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; (2S)cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl pyrrolidine carboxylate; (2S)(1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl) 1-methyl 2- aminopentanedioate; 1-(4-((S)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) phenylethanone; (3-fluorohydroxyphenyl)(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)piperidinyl)methanone; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-phenylpiperidine carboxamide; (4-fluorophenyl)(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidin yl)methanone; (2S)amino(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidin yl)phenylpropanone; (4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)((S)- pyrrolidinyl) methanone; (1R,4s)(2-((S)fluoro-5H-imidazo[5,1-a]isoindolyl)hydroxyethyl) cyclohexyl benzoate; (1R,4s)(2-((S)fluoro-5H-imidazo[5,1-a]isoindolyl)hydroxyethyl) cyclohexanol; 1-(3-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)azetidinyl) phenylethanone; 3-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-phenylazetidine amide; tert-butyl ydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)azetidine carboxylate 1-(azetidinyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; tert-butyl 4-((S)hydroxy((R)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine- 1-carboxylate; tert-butyl 4-((R)hydroxy((R)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine- 1-carboxylate; AH26(9298372_1):RTK tert-butyl 4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine- 1-carboxylate; tert-butyl 4-((S)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine- 1-carboxylate; 1-((1s,4s)(benzyloxy)cyclohexyl)(6-fluoro-5H-imidazo[5,1-a]isoindol anol; imidazo[5,1-a]isoindolyl)(pyridinyl)ethanol; (1r,4r)(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; 4-((S)hydroxy((R)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-phenylpiperidine- 1-carboxamide; 4-((R)hydroxy((R)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-phenylpiperidine- 1-carboxamide; 4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-phenylpiperidine- 1-carboxamide; 4-((S)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-phenylpiperidine- 1-carboxamide; 1-(4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) phenylethanone; (1R,4s)((S)((R)fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; )((R)((R)fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; (1S,4s)((R)((S)fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; (1R,4s)((S)((S)fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; (1S,4r)((S)((S)fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; (1S,4r)((S)((R)fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; (1R,4r)((R)((S)fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanol; (1R,4r)((R)((R)fluoro-5H-imidazo[5,1-a]isoindolyl) AH26(9298372_1):RTK hydroxyethyl)cyclohexanol; 1-(4-((S)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) hydro-2H-pyranyl)ethanone; 1-(4-((R)hydroxy((R)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) phenylethanone; N-((1s,4s)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)benzamide; 1-(4-((S)hydroxy((R)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) phenylethanone; 2-(5H-imidazo[5,1-a]isoindolyl)(1-(phenylcarbamoyl)piperidinyl)ethyl phenylcarbamate; 4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-((1r,4R) ycyclohexyl)piperidinecarboxamide; 4-((S)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-(tetrahydro-2H- pyranyl)piperidinecarboxamide; 4-((S)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-((1r,4S) hydroxycyclohexyl)piperidinecarboxamide; 1-((1r,4r)(benzyloxy)cyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 1-((1r,4r)(benzyloxy)cyclohexyl)(6-fluoro-5H-imidazo[5,1-a]isoindol yl)ethanol; 1-(4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) (tetrahydro-2H-pyranyl)ethanone; 2-(5H-imidazo[5,1-a]isoindolyl)(pyridinyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(pyridinyl)ethanol; 4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-(tetrahydro-2H- pyranyl)piperidinecarboxamide; N-cyclohexyl((R)hydroxy((S)-5H-imidazo[5,1-a]isoindol yl)ethyl)piperidinecarboxamide; N-((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)benzamide; N-cyclopentyl((R)hydroxy((S)-5H-imidazo[5,1-a]isoindol yl)ethyl)piperidinecarboxamide; luoro-5H-imidazo[5,1-a]isoindolyl)(4- (trifluoromethyl)cyclohexyl)ethanol; AH26(9298372_1):RTK 2-(5H-imidazo[5,1-a]isoindolyl)(4-(trifluoromethyl)cyclohexyl)ethanol; (R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) (4-(trifluoromethyl)phenyl)ethanone; 4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)-N-(4- (trifluoromethyl)phenyl)piperidinecarboxamide; (4-((R)hydroxy((S)-5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)(1H- imidazolyl)methanone; 1-(5H-imidazo[5,1-a]isoindolyl)methylbutanol; 2-(5H-imidazo[5,1-a]isoindolyl)(tetrahydro-2H-pyranyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(piperidinyl)ethanol; 1-cyclohexyl((R)-5H-imidazo[5,1-a]isoindolyl)ethanol; ohexyl((S)-5H-imidazo[5,1-a]isoindolyl)ethanol; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)propanol; 1-cyclohexyl(9-fluoro-5H-imidazo[5,1-a]isoindolyl)ethanol; N-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)phenyl)(tetrahydro-2H- pyranyl)acetamide; 2-(5H-imidazo[5,1-a]isoindolyl)(1H-imidazolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(1H-imidazolyl)ethanol; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(thiazolyl)ethanol; (5S)(2-cyclohexylhydroxyethyl)-5H-imidazo[5,1-a]isoindolol; 1-(2-aminocyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; N-(1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)ethyl)acetamide; N-(2-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)cyclohexyl)acetamide; 1-cyclohexyl(5H-imidazo[5,1-a]isoindolyl)-N-methylethanamine; 2-((1-cyclohexyl((S)-5H-imidazo[5,1-a]isoindol yl)amino)ethanesulfonamide; 2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)(1-methylpiperidinyl)ethanol; 1-(4-aminocyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; N-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)cyclohexyl)acetamide; 1-(4-(aminomethyl)cyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)cyclohexanecarboxamide; 1-(3-aminocyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyridin AH26(9298372_1):RTK ylmethoxy)cyclohexyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyridin ylmethoxy)cyclohexyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyridin ylmethoxy)cyclohexyl)ethanol; 1-((1r,4r)((2-aminopyridinyl)methoxy)cyclohexyl)(5H-imidazo[5,1- a]isoindolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyrazin ylmethoxy)cyclohexyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(pyrimidin ylmethoxy)cyclohexyl)ethanol; 1-((1r,4r)((6-aminopyridinyl)methoxy)cyclohexyl)(5H-imidazo[5,1- a]isoindolyl)ethanol; 1-((1r,4r)((6-aminopyridinyl)methoxy)cyclohexyl)(5H-imidazo[5,1- ndolyl)ethanol; 1-((1r,4r)((3-aminopyridinyl)methoxy)cyclohexyl)(5H-imidazo[5,1- a]isoindolyl)ethanol; 1-((1r,4r)((2-aminopyrimidinyl)methoxy)cyclohexyl)(5H-imidazo[5,1- a]isoindolyl)ethanol; 1-((1r,4r)((4-aminopyrimidinyl)methoxy)cyclohexyl)(5H-imidazo[5,1- ndolyl)ethanol; 1-((1r,4r)((5-aminopyridinyl)methoxy)cyclohexyl)(5H-imidazo[5,1- a]isoindolyl)ethanol; 4-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)cyclohexyl)oxy)methyl)-N,N-dimethylbenzamide; 3-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)-N,N-dimethylbenzamide; 2-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)-N,N-dimethylbenzamide; 4-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzenesulfonamide; 3-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzenesulfonamide; 2-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol AH26(9298372_1):RTK yl)ethyl)cyclohexyl)oxy)methyl)benzenesulfonamide; 4-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzamide; 3-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzamide; 2-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzamide; methyl 4-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzoate; methyl 3-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzoate; methyl 2-((((1r,4r)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzoate; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)methoxycyclohexyl)ethanol; 1-((1r,4r)ethoxycyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)isopropoxycyclohexyl)ethanol; ,4r)(cyclopropylmethoxy)cyclohexyl)(5H-imidazo[5,1-a]isoindol yl)ethanol; 1-((1r,4r)(cyclopentylmethoxy)cyclohexyl)(5H-imidazo[5,1-a]isoindol yl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)((1r,4r)(thiophen oxy)cyclohexyl)ethanol; 1-((1r,4r)((1H-indolyl)oxy)cyclohexyl)(5H-imidazo[5,1-a]isoindol yl)ethanol; 1-((1r,4r)((1H-indolyl)oxy)cyclohexyl)(5H-imidazo[5,1-a]isoindol yl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(4-((tetrahydro-2H-pyran yl)methoxy)cyclohexyl)ethanol; 4-(((4-(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexyl)oxy)methyl)benzenesulfonamide; 2-(5H-imidazo[5,1-a]isoindolyl)(4-(oxazolylmethoxy)cyclohexyl)ethanol; imidazo[5,1-a]isoindolyl)(4-(thiazolylmethoxy)cyclohexyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(1-(1-iminophenylethyl)piperidin yl)ethanol; AH26(9298372_1):RTK 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-phenylpiperidine carboximidamide; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-(pyridinyl)piperidine- 1-carboximidamide; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-(tetrahydro-2H-pyran yl)piperidinecarboximidamide; N-(4-cyanophenyl)(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)piperidinecarboxamide; N-(tert-butyl)(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine carboxamide; N-(tert-butyl)(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine amide; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)(3- hydroxyphenyl)ethanone; 2-(1-(azetidinecarbonyl)piperidinyl)hydroxy(4-(1-hydroxy(5H- imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)ethanone; 2-cyclopentyl(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidin yl)ethanone; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)(2- methylthiazolyl)ethanone; N-cyclohexyl-N-hydroxy(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)piperidinecarboxamide; N-(4-(2-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) oxoethyl)phenyl)methanesulfonamide; N-cyclopropyl-N-hydroxy(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)piperidinecarboxamide; 3,3-difluoro(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidin yl)butanone; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)(ptolyl )ethanone; 1-(1-(4-aminopyrimidinyl)piperidinyl)(5H-imidazo[5,1-a]isoindol yl)ethanol; 1-(1-(2-aminopyrimidinyl)piperidinyl)(5H-imidazo[5,1-a]isoindol yl)ethanol; AH26(9298372_1):RTK N-cyclopropyl(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidine carboxamide; 2-cyclopropyl(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidin yl)ethanone; 2-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)ethyl)cyclohexylidene)acetonitrile; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-(4- (trifluoromethyl)thiazolyl)piperidinecarboxamide; 4-(2-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) oxoethyl)benzamide; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)(4- (methylsulfonyl)phenyl)ethanone; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)-N-((1r,4r) methylcyclohexyl)piperidinecarboxamide; 1-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl)-3,3- dimethylbutanone; 4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) oxoethyl)benzenesulfonamide; N-(tert-butyl)(2-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindol yl)piperidinyl)oxoethyl)benzenesulfonamide; 4-(2-(4-(1-hydroxy(5H-imidazo[5,1-a]isoindolyl)ethyl)piperidinyl) oxoethyl)benzoic acid; 1-(4-(difluoromethylene)cyclohexyl)(5H-imidazo[5,1-a]isoindolyl)ethanol; 2-(5H-imidazo[5,1-a]isoindolyl)(4-(2,2,2- trifluoroethylidene)cyclohexyl)ethanol; N-benzyl(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexanecarboxamide; 6-fluoro-5H-imidazo[5,1-a]isoindolyl)hydroxyethyl)-N- phenylcyclohexanecarboxamide; N-(4-(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl) hydroxyethyl)cyclohexyl)benzamide; 1-(4-(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)hydroxyethyl)cyclohexyl) phenylurea; N-(4-(2-(6-fluoro-5H-imidazo[5,1-a]isoindolyl)hydroxyethyl)cyclohexyl) AH26(9298372_1):RTK phenylacetamide; or a pharmaceutically acceptable salt thereof.
33. The nd according to claim 1 that is 4-((R)hydroxy((S)-5H-imidazo[5,1- a]isoindolyl)ethyl)-N-phenylpiperidinecarboxamide or a pharmaceutically acceptable salt thereof.
34. The compound according to claim 1 that is 1-(4-((R)hydroxy((S)-5H-imidazo[5,1- a]isoindolyl)ethyl)piperidinyl)phenylethanone or a pharmaceutically acceptable salt thereof.
35. The compound according to claim 1 that is 1-(4-((S)hydroxy((S)-5H-imidazo[5,1- a]isoindolyl)ethyl)piperidinyl)phenylethanone or a ceutically able salt thereof.
36. The compound according to claim 1 that is (S)cyclohexyl((S)-5H-imidazo[5,1- a]isoindolyl)ethanol or a pharmaceutically able salt thereof.
37. The compound of claim 1 that is(1R,4r)((R)((S)fluoro-5H-imidazo[5,1- a]isoindolyl)hydroxyethyl)cyclohexanol or a pharmaceutically acceptable salt thereof.
38. A pharmaceutical composition comprising a compound according to any one of claims 1 – 37 and a pharmaceutically acceptable t, excipient, or r.
39. A kit comprising a compound ing to any one of claims 1 – 37.
40. The kit according to claim 39, further comprising a second therapeutic agent.
41. The kit according to claim 40, wherein the second therapeutic agent is an anti-viral agent.
42. The kit according to claim 41, wherein the anti-viral agent is a nucleoside or nucleotide reverse transcriptase inhibitor (NRTI).
43. The kit according to claim 42, wherein the NRTI is zidovudine (AZT); didanosine (ddI); zalcitabine (ddC); stavudine (d4T); lamivudine (3TC); abacavir (1592U89); ir dipivoxil AH26(9969527_1):JJC [bis(POM)-PMEA]; lobucavir (BMS-180194); BCH-10652; emitricitabine TC]; beta-LFD4 ; DAPD, or lodenosine (FddA).
44. The kit ing to claim 41, wherein the anti-viral agent is an NNRTI.
45. The kit according to claim 44, wherein the NNRTI is nevirapine (BI-RG-587); delaviradine (BHAP, U-90152); efavirenz (DMP-266); PNU-142721; AG-1549; MKC-442 (1- (ethoxy-methyl)(1-methylethyl)(phenylmethyl)-(2,4(1H,3H)-pyrimidinedione); or (+)- calanolide A (NSC-675451) or B.
46. The kit according to claim 41, wherein the anti-viral agent is a protease inhibitor.
47. The kit according to claim 46, wherein the protease inhibitor is avir (Ro 31-8959); ritonavir (ABT-538); indinavir (MK-639); nelfnavir (AG-1343); amprenavir (141W94); lasinavir (BMS-234475); 0; BMS-2322623; ABT-378; or AG-1549.
48. The kit according to claim 41, wherein the anti-viral agent is hydroxyurea, ribavirin, IL-2, IL-12, pentafuside or Yissum Project No. 11607.
49. The kit according to claim 40, wherein the second therapeutic agent is a chemotherapeutic or other anticancer agent.
50. The kit according to claim 49, wherein the herapeutic or other anticancer agent is an alkylating agent.
51. The kit ing to claim 50 wherein the alkylating agent is a nitrogen mustard, an ethylenimine derivative, an alkyl sulfonate, a nitrosourea, or a triazene.
52. The kit according to claim 50 wherein the alkylating agent is uracil mustard, ethine, cyclophosphamide (Cytoxan™), ifosfamide, melphalan, chlorambucil, pipobroman, triethylene- melamine, ylenethiophosphoramine, busulfan, carmustine, lomustine, streptozocin, dacarbazine, or lomide.
53. The kit according to claim 49, wherein the chemotherapeutic or other ncer agent is an antimetabolite. AH26(9969527_1):JJC
54. The kit according to claim 53 wherein the tabolite is an folic acid antagonist, a pyrimidine analog, a purine analog, or an adenosine deaminase inhibitor.
55. The kit according to claim 49, wherein the chemotherapeutic or other anticancer agent is rexate, 5-fluorouracil, floxuridine, cytarabine, 6-mercaptopurine, 6-thioguanine, fludarabine phosphate, pentostatine, or gemcitabine.
56. The kit according to claim 49, n the chemotherapeutic or other anticancer agent is a vinca alkaloid, an antitumor antibiotic, an enzyme, a lymphokine, or an epipodophyllotoxin.
57. The kit according to claim 49, wherein the chemotherapeutic or other ncer agent is vinblastine, stine, vindesine, bleomycin, dactinomycin, daunorubicin, doxorubicin, epirubicin, idarubicin, ara-C, paclitaxel ™), docetaxel, mithramycin, deoxyco-formycin, mitomycin-C, L-asparaginase, interferons (especially IFN-a), etoposide, or teniposide.
58. The kit according to claim 40, n the second therapeutic agent is a cytotoxic agent.
59. The kit according to claim 58, wherein the cytotoxic agent is navelbene, CPT-11, anastrazole, letrazole, capecitabine, reloxafine, cyclophosphamide, ifosamide, or droloxafine.
60. The kit according to claim 58, wherein the cytotoxic agent is an antineoplastic enzyme; a topoisomerase inhibitor; a platinum coordination complex; a ical response modifier; a growth inhibitor; an antihormonal therapeutic agent; or a haematopoietic growth factor.
61. The kit according to claim 58, wherein the cytotoxic agent is epidophyllotoxin; procarbazine; ntrone; cisplatin, carboplatin; leucovorin; or tegafur.
62. The kit according to claim 49, wherein the chemotherapeutic or other anticancer agent is an dy to a costimulatory molecule or cytokine.
63. The kit according to claim 62, wherein the cytokine is IL-10 or TGF-β.
64. The kit according to claim 62, wherein the chemotherapeutic or other ncer agent is an antibody to the costimulatory molecule CTLA-4,4-1BB or PD-1. AH26(9969527_1):JJC
65. The kit according to claim 62, wherein the chemotherapeutic or other anticancer agent is an antibody to the cytokine IL-10 or TGF-β.
66. The kit according to claim 49, wherein the chemotherapeutic or other anticancer agent is trastuzumab.
67. The kit according to claim 49, wherein the chemotherapeutic or other anticancer agent blocks immune cell ion.
68. The kit according to claim 67, wherein the herapeutic or other anticancer agent is an antagonist of a chemokine receptor.
69. The kit according to claim 68, wherein the chemokine receptor is CCR2, CCR4, or CCR6.
70. The kit according to claim 49, wherein the chemotherapeutic or other anticancer agent is a vaccine.
71. The kit according to claim 70, wherein the vaccine comprises a dendritic cell, a synthetic peptide, a DNA vaccine, or a recombinant virus.
72. The kit according to any of claims 39 - 71, r comprising an adjuvant for augmenting the immune system. NewLink cs Corporation By the Attorneys for the Applicant SPRUSON & FERGUSON Per: AH26(9969527_1):JJC WO 42237
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NZ708090A NZ708090A (en) | 2011-04-15 | 2012-04-12 | Fused imidazole derivatives useful as ido inhibitors |
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US201161475788P | 2011-04-15 | 2011-04-15 | |
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PCT/US2012/033245 WO2012142237A1 (en) | 2011-04-15 | 2012-04-12 | Fused imidazole derivatives useful as ido inhibitors |
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