NZ710852B2 - Pyridinyl and fused pyridinyl triazolone derivatives - Google Patents
Pyridinyl and fused pyridinyl triazolone derivatives Download PDFInfo
- Publication number
- NZ710852B2 NZ710852B2 NZ710852A NZ71085214A NZ710852B2 NZ 710852 B2 NZ710852 B2 NZ 710852B2 NZ 710852 A NZ710852 A NZ 710852A NZ 71085214 A NZ71085214 A NZ 71085214A NZ 710852 B2 NZ710852 B2 NZ 710852B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- triazol
- compound
- tautomer
- ring
- mmol
- Prior art date
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- 125000004076 pyridyl group Chemical group 0.000 title description 17
- DKHMDUDREAVQOQ-UHFFFAOYSA-N O=C1N=NN=C1C1=CC=CC=N1 Chemical class O=C1N=NN=C1C1=CC=CC=N1 DKHMDUDREAVQOQ-UHFFFAOYSA-N 0.000 title description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 342
- 239000011780 sodium chloride Substances 0.000 claims abstract description 94
- 150000003839 salts Chemical class 0.000 claims abstract description 88
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- 230000002062 proliferating Effects 0.000 claims abstract description 6
- -1 -OR8 Chemical group 0.000 claims description 240
- 125000005843 halogen group Chemical group 0.000 claims description 114
- 125000001424 substituent group Chemical group 0.000 claims description 109
- 239000001257 hydrogen Substances 0.000 claims description 90
- 229910052739 hydrogen Inorganic materials 0.000 claims description 90
- 125000004432 carbon atoms Chemical group C* 0.000 claims description 76
- 125000004765 (C1-C4) haloalkyl group Chemical group 0.000 claims description 72
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 65
- RWRDLPDLKQPQOW-UHFFFAOYSA-N pyrrolidine Chemical group C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 claims description 58
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 claims description 55
- 125000003386 piperidinyl group Chemical group 0.000 claims description 51
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims description 27
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 25
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 24
- 239000003814 drug Substances 0.000 claims description 22
- 125000004433 nitrogen atoms Chemical group N* 0.000 claims description 22
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 21
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 125000004429 atoms Chemical group 0.000 claims description 16
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 13
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- TWTHWWNQXPHKNX-ZDUSSCGKSA-N tert-butyl (3S)-3-[(8-chloro-3-cyanoisoquinolin-1-yl)amino]pyrrolidine-1-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CC[C@@H]1NC1=NC(C#N)=CC2=CC=CC(Cl)=C12 TWTHWWNQXPHKNX-ZDUSSCGKSA-N 0.000 description 1
- ZIGJDXIREVNHBV-ZDUSSCGKSA-N tert-butyl (3S)-3-[3-[(Z)-C-aminocarbonohydrazonoyl]-7-fluoroisoquinolin-1-yl]oxypyrrolidine-1-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CC[C@@H]1OC1=NC(C(=N)NN)=CC2=CC=C(F)C=C12 ZIGJDXIREVNHBV-ZDUSSCGKSA-N 0.000 description 1
- NZQJDUKYDOSMQL-LBPRGKRZSA-N tert-butyl (3S)-3-[3-[(Z)-C-aminocarbonohydrazonoyl]-8-chloroisoquinolin-1-yl]oxypyrrolidine-1-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CC[C@@H]1OC1=NC(C(=N)NN)=CC2=CC=CC(Cl)=C12 NZQJDUKYDOSMQL-LBPRGKRZSA-N 0.000 description 1
- FBIUFQLFIWUYJN-LBPRGKRZSA-N tert-butyl (3S)-3-[8-fluoro-3-(5-oxo-1,2-dihydro-1,2,4-triazol-3-yl)isoquinolin-1-yl]oxypyrrolidine-1-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CC[C@@H]1OC1=NC(C=2NC(=O)NN=2)=CC2=CC=CC(F)=C12 FBIUFQLFIWUYJN-LBPRGKRZSA-N 0.000 description 1
- IUPLBXRXOSQRMR-ZDUSSCGKSA-N tert-butyl (3S)-3-[[3-(5-oxo-1,2-dihydro-1,2,4-triazol-3-yl)isoquinolin-1-yl]amino]pyrrolidine-1-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CC[C@@H]1NC1=NC(C=2NC(=O)NN=2)=CC2=CC=CC=C12 IUPLBXRXOSQRMR-ZDUSSCGKSA-N 0.000 description 1
- XDLPLMJVBWBXFJ-ZDUSSCGKSA-N tert-butyl (3S)-3-[[3-[(Z)-C-aminocarbonohydrazonoyl]-7-fluoroisoquinolin-1-yl]amino]pyrrolidine-1-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CC[C@@H]1NC1=NC(C(=N)NN)=CC2=CC=C(F)C=C12 XDLPLMJVBWBXFJ-ZDUSSCGKSA-N 0.000 description 1
- JMAKKEVUDBNCAB-LBPRGKRZSA-N tert-butyl (3S)-3-[[3-[(Z)-C-aminocarbonohydrazonoyl]-8-chloroisoquinolin-1-yl]amino]pyrrolidine-1-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CC[C@@H]1NC1=NC(C(=N)NN)=CC2=CC=CC(Cl)=C12 JMAKKEVUDBNCAB-LBPRGKRZSA-N 0.000 description 1
- DQQJBEAXSOOCPG-UHFFFAOYSA-N tert-butyl N-pyrrolidin-3-ylcarbamate Chemical compound CC(C)(C)OC(=O)NC1CCNC1 DQQJBEAXSOOCPG-UHFFFAOYSA-N 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- 125000004632 tetrahydrothiopyranyl group Chemical group S1C(CCCC1)* 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001583 thiepanyl group Chemical group 0.000 description 1
- 125000002053 thietanyl group Chemical group 0.000 description 1
- 125000001730 thiiranyl group Chemical group 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000000451 tissue damage Effects 0.000 description 1
- 231100000827 tissue damage Toxicity 0.000 description 1
- UJLAWZDWDVHWOW-YPMHNXCESA-N tofacitinib Chemical compound C[C@@H]1CCN(C(=O)CC#N)C[C@@H]1N(C)C1=NC=NC2=C1C=CN2 UJLAWZDWDVHWOW-YPMHNXCESA-N 0.000 description 1
- 229960001350 tofacitinib Drugs 0.000 description 1
- 239000012049 topical pharmaceutical composition Substances 0.000 description 1
- 229960000303 topotecan Drugs 0.000 description 1
- 229960005026 toremifene Drugs 0.000 description 1
- 229960005267 tositumomab Drugs 0.000 description 1
- 230000002588 toxic Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- LXZZYRPGZAFOLE-UHFFFAOYSA-L transplatin Chemical compound [H][N]([H])([H])[Pt](Cl)(Cl)[N]([H])([H])[H] LXZZYRPGZAFOLE-UHFFFAOYSA-L 0.000 description 1
- 229960000575 trastuzumab Drugs 0.000 description 1
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 description 1
- 229940086542 triethylamine Drugs 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000001889 triflyl group Chemical group FC(F)(F)S(*)(=O)=O 0.000 description 1
- RMFNGLHOFHJMHN-UHFFFAOYSA-L triplatin tetranitrate Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH3+][Pt-2]([NH3+])(Cl)[NH2+]CCCCCC[NH2+][Pt-2]([NH3+])([NH3+])[NH2+]CCCCCC[NH2+][Pt-2]([NH3+])([NH3+])Cl RMFNGLHOFHJMHN-UHFFFAOYSA-L 0.000 description 1
- 229950002860 triplatin tetranitrate Drugs 0.000 description 1
- 238000001665 trituration Methods 0.000 description 1
- 101710006033 trzD Proteins 0.000 description 1
- 210000004881 tumor cells Anatomy 0.000 description 1
- 229960001055 uracil mustard Drugs 0.000 description 1
- 229960000653 valrubicin Drugs 0.000 description 1
- JXLYSJRDGCGARV-XQKSVPLYSA-N vincaleukoblastine Chemical compound C([C@@H](C[C@]1(C(=O)OC)C=2C(=CC3=C([C@]45[C@H]([C@@]([C@H](OC(C)=O)[C@]6(CC)C=CCN([C@H]56)CC4)(O)C(=O)OC)N3C)C=2)OC)C[C@@](C2)(O)CC)N2CCC2=C1NC1=CC=CC=C21 JXLYSJRDGCGARV-XQKSVPLYSA-N 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
- HHJUWIANJFBDHT-KOTLKJBCSA-N vindesine Chemical compound C([N@]1C[C@@H](C[C@]2(C(=O)OC)C=3C(=CC4=C([C@]56[C@H]([C@@]([C@H](O)[C@]7(CC)C=CCN([C@H]67)CC5)(O)C(N)=O)N4C)C=3)OC)C[C@@](C1)(O)CC)CC1=C2NC2=CC=CC=C12 HHJUWIANJFBDHT-KOTLKJBCSA-N 0.000 description 1
- 229960002066 vinorelbine Drugs 0.000 description 1
- GBABOYUKABKIAF-IELIFDKJSA-N vinorelbine Chemical compound C1N(CC=2C3=CC=CC=C3NC=22)CC(CC)=C[C@H]1C[C@]2(C(=O)OC)C1=CC([C@]23[C@H]([C@@]([C@H](OC(C)=O)[C@]4(CC)C=CCN([C@H]34)CC2)(O)C(=O)OC)N2C)=C2C=C1OC GBABOYUKABKIAF-IELIFDKJSA-N 0.000 description 1
- 239000003871 white petrolatum Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Disclosed are compounds of Formula 1, or pharmaceutically acceptable salts thereof, wherein R1, R2, R3, and R4 are defined in the specification. This disclosure also relates to materials and methods for preparing compounds of Formula 1, to pharmaceutical compositions which contain them, and to their use for treating Type I hypersensitivity reactions, autoimmune diseases, inflammatory disorders, cancer, non-malignant proliferative disorders, and other conditions associated with BTK. use for treating Type I hypersensitivity reactions, autoimmune diseases, inflammatory disorders, cancer, non-malignant proliferative disorders, and other conditions associated with BTK.
Description
PYRIDINYL AND FUSED PYRIDINYL TRIAZOLONE DERIVATIVES
FIELD OF THE INVENTION
This ion relates to pyridinyl and fused pyridinyl triazolone derivatives, which
are inhibitors of Bruton’s tyrosine kinase (BTK), to pharmaceutical itions which
contain them, and to the use of the inhibitors to treat diseases, disorders, and conditions
associated with BTK.
BACKGROUND OF THE INVENTION
BTK is a member of the TEC family of non-receptor protein tyrosine kinases, and it
is involved in the regulation of B-cell development, tion, and survival through B-cell
antigen receptor (BCR) signaling. See W.N. Khan et al., Immunity 299 (1995); and
AB. Satterthwaite and ON. Witte, Immuno]. Rev. 175: 120—127 (2000). on of the gene
encoding BTK in humans leads to a condition known as X-linked agammaglobulinemia
(XLA), which is characterized by reduced immune function, including impaired maturation
of B cells, decreased levels of immunoglobulin and peripheral B cells, diminished T—cell
ndent immune response, and ated calcium mobilization following BCR
stimulation. See F.S. Rosen et al., N. Eng]. J. Med. 333(7):431—440 (1995); and J.M. Lindvall
et al., Immuno]. Rev. 203:200—215 (2005).
BTK’s key role in B-cell development and the BCR signaling pathway suggests that
inhibition of BTK may provide therapeutic benefit for the treatment of lymphoma,
atory disorders, and autoimmune diseases, among others. Clinical studies involving
the depletion of mature B cells via treatment with mab indicate that rheumatoid tis,
systemic lupus erythematosus (SLE), and multiple sclerosis may result from the over
expression of B cells. See J.C. Edwards et al., N. Eng]. J Med. 350:2572—81 (2004); C. Favas
and DA. Isenberg Nat. Rev. Rheumato]. 16 (2009); and S.L. Hauser et al. N. Eng]. J.
Med. 358:676—88 (2008). Other studies suggest that the BCR pathway may be involved in the
survival of tumor cells in non-Hodgkin lymphoma and diffuse large B-cell lymphoma. See R.
Kiippers, Nat. Rev. Cancer 5:251—62 (2005); and RE. Davis et al., Nature 463:88—92 (2010).
In nical studies, BTK—deficient mice have demonstrated decreased disease progression
in murine models of SLE and resistance to collagen-induced arthritis. See M.J. Shlomchik et
al., J Exp. Med. 180: 1295—1306 (1994); and L. Jansson and R. Holmdahl, C]z'n. Exp.
Immuno]. 94(3):459—65 (1993). Furthermore, a ive irreversible BTK inhibitor has been
shown to tely suppress collagen-induced arthritis in mice, to inhibit autoantibody
production and the development of kidney disease in a mouse model for SLE, and to induce
objective al responses in dogs with spontaneous B-cell non-Hodgkin lymphoma. See
L.A. Honigberg et al., Proc. Natl. Acad. Sci. USA 107(29):13075-80 (2010).
Certain inhibitors of Bruton’s tyrosine kinase are described in WO 99/54286 A2,
A1, A2, A2, A2,
A2, A1, A1, A1,
A1, A1, A1, A1,
A1, and A2.
SUMMARY OF THE INVENTION
This ion provides pyridinyl and fused pyridinyl triazolone derivatives and
pharmaceutically able salts thereof. This invention also provides pharmaceutical
compositions which contain the triazolone derivatives and provides for their use to treat
diseases, disorders and conditions ated with BTK.
[0005a] In a particular aspect, the present invention provides a compound of
Formula 1,
a er thereof or a pharmaceutically acceptable salt of the compound or tautomer,
wherein:
R1 is selected from en, halo, and methyl;
R2 and R3 are each independently selected from en, halo, and methyl, or R2 and R3,
together with carbon atoms to which they are attached, form a benzene ring or a
pyridine ring in which the benzene ring is optionally substituted with from one to four
substituents independently selected from halo, -CN, -OR8, and C1-6 alkyl, and the
pyridine ring is optionally substituted with from one to three substituents
ndently selected from halo, -CN, -OR8, and C1-6 alkyl;
(followed by page 2a)
R4 has the formula
in which indicates a point of attachment;
L is selected from –O–, -CH2O-, and –N(R4e)-;
R4a is ed from –CH2R5 and ethenyl optionally substituted with from one to three
substituents independently selected from halo, cyano, and C1-6 alkyl optionally
substituted with -N(R11)R12; and
(a) R4c is hydrogen, R4e is selected from hydrogen and C1-4 alkyl when L is –N(R4e)-,
and R4b and R4d, together with a nitrogen atom and carbon atoms to which R4b,
R4c, and R4d are respectively attached, form a pyrrolidine ring or a piperidine
ring, each ring optionally substituted with from one to six substituents
independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl; or
(b) R4b is selected from hydrogen and C1-4 alkyl, R4d is hydrogen, L is –N(R4e)-, and
R4c and R4e, er with the carbon atoms and a nitrogen atom to which R4c,
R4d, and R4e are respectively attached, form a pyrrolidine ring or a piperidine
ring, each ring optionally substituted with from one to six substituents
independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl; or
(c) R4d is hydrogen, R4e is selected from hydrogen and C1-4 alkyl when L is –N(R4e)-,
and R4b and R4c, together with the nitrogen and carbon atoms to which R4b and
R4c are respectively ed, form pyrrolidine ring or a piperidine ring, each
ring ally substituted with from one to six substituents independently
selected from halo, C1-4 alkyl, and C1-4 haloalkyl;
R5 is ed from hydrogen, halo, and C1-4 alkyl;
R8 is ndently selected from hydrogen and C1-6 alkyl; and
each R11 and R12 is independently ed from hydrogen and C1-6 alkyl.
(followed by page 2b)
One aspect of the invention provides compounds of Formula 1:
a tautomer thereof or a pharmaceutically acceptable salt of the compound or tautomer,
wherein:
R1 is selected from hydrogen, halo, -CN, C1-4 alkyl, C1-4 haloalkyl, and –OR14;
R2 and R3 are each independently selected from hydrogen, halo, -CN, R6, and R7, or R2 and
R3, er with carbon atoms to which they are attached, form a benzene ring or a
pyridine ring in which the benzene ring is optionally substituted with from one to
four substituents independently ed from halo, -CN, R6, and R7, and the
ne ring is optionally substituted with from one to three substituents
independently selected from halo, -CN, R6, and R7;
R4 has the formula
(followed by page 3)
‘(LIR4d,R4b
R4Nc
0%R48
in which L51 indicates a point of attachment;
L is selected from —O—, —CHZO—, and —N(R4e)—;
R4a is selected from —CH2R5 and ethenyl optionally substituted with from one to
three substituents independently selected from halo, cyano, and R7; and
(a) R40 is hydrogen, R46 is ed from hydrogen and C1_4 alkyl when L is -N(R4e)-,
and R4b and RM, together with a nitrogen atom and carbon atoms to which
R“, R“, and R4d are respectively ed, form a pyrrolidine ring or a
piperidine ring, each ring optionally substituted with from one to six
substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
(b) R4b is selected from hydrogen and C1_4 alkyl, R4d is en, L is )—, and
R40 and R46, together with the carbon atoms and a nitrogen atom to which
R46, R“, and R46 are tively attached, form a pyrrolidine ring or a
dine ring, each ring optionally substituted with from one to six
substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
(c) R4d is hydrogen, R46 is selected from hydrogen and C1_4 alkyl when L is -N(R4e)—,
and R4b and R46, together with the nitrogen and carbon atoms to which R4b
and R40 are respectively attached, form pyrrolidine ring or a piperidine ring,
each ring optionally substituted with from one to six substituents
ndently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
R5 is selected from hydrogen, halo, and C1_4 alkyl;
each R6 is independently selected from —OR8, —N(R8)R9, —NR8C(O)R9, —NHC(O)NR8R9,
—NR8C(O)NHR9, —C(O)R8, -C(O)OR8, —C(O)N(R8)R9, —C(O)N(R8)OR9,
—C(O)N(R8)S(O)2R7, —N(R8)S(O)2R7, -SR8, —S(O)R7, —S(O)2R7, and —S(O)2N(R8)R9;
each R7 is independently selected from
(a) C1_6 alkyl, C2_6 l, and C2_6 alkynyl, each optionally substituted with from
one to five substituents independently selected from halo, oxo, —CN, and R10;
(b) C340 cycloalkyl—(CH2)m—, C644 aryl—(CH2)m—, CM heterocyclyl—(CH2)m—, and
C1_9 heteroaryl-(CH2)m-, each optionally substituted with from one to five
substituents ndently selected from halo, oxo, —CN, R10, and C1_6 alkyl
optionally substituted with from one to five substituents independently
selected from halo, oxo, —CN, and R10;
each R8 and R9 is independently selected from
(a) hydrogen;
(b) C1_6 alkyl, C2_6 alkenyl, and C2_6 alkynyl, each optionally substituted with from
one to five substituents independently selected from halo, oxo, —CN, and R10;
(c) C3_10 lkyl—(CH2)m—, C644 aryl—(CH2)m—, CM heterocyclyl—(CH2)m—, and
C1_9 aryl-(CH2)m-, each ally substituted with from one to five
substituents independently selected from halo, oxo, —CN, R10, and C1_6 alkyl
optionally substituted with from one to five substituents independently
selected from halo, oxo, —CN, and R10;
each R10 is independently selected from —OR11, —N(R11)R12, )C(O)R12,
—NHC(O)NR“R12,—NR“C(O)NHR12, -C(O)R”, -C(O)OR“, —C(O)N(R“)R12,
—C(O)N(R“)OR12, —C(O)N(R“)S(O)2R13, —NR“S(O)2R13,—SR“,—S(O)R13,
—S(O)2Rl3, and —S(O)2N(R”)R12;
each R11 and R12 is independently selected from
(a) hydrogen; and
(b) C1_6 alkyl and C3_10 cycloalkyl-(CH2)m-, each optionally substituted with from
one to five substituents independently selected from halo, oxo, —CN, —OH,
and —NH2;
each R13 is independently selected from C1_6 alkyl and C3_10 cycloalkyl-(CH2)m-, each
optionally substituted with from one to five tuents independently selected
from halo, oxo, -CN, —OH, and —NH2;
each R14 is independently selected from hydrogen, C1_4 alkyl, and C1_4 kyl; and
each m is independently selected from 0, l, 2, 3, and 4;
wherein each heteroaryl and heterocyclyl of R7, R8, and R9 independently has one to four
heteroatoms, each of the heteroatoms independently selected from N, O, and S.
Another aspect of the invention provides a nd which is selected from the
group of compounds described in the examples, tautomers thereof, stereoisomers of the
example compounds and their tautomers, and pharmaceutically able salts of any of the
aforementioned example compounds, tautomers, and stereoisomers.
A further aspect of the invention provides a pharmaceutical composition which
includes a nd of Formula 1, a tautomer thereof or a pharmaceutically acceptable salt
of the compound or tautomer as d above, or a compound as defined in the immediately
preceding paragraph; and a pharmaceutically acceptable excipient.
An additional aspect of the invention provides a compound of Formula 1, a
er thereof or a pharmaceutically acceptable salt of the compound or tautomer as
defined above, or a compound selected from the group of compounds as defined above, for
use as a medicament.
Another aspect of the invention provides a use of a compound of Formula 1, a
tautomer thereof or a pharmaceutically acceptable salt of the compound or tautomer as
defined above, or a compound selected from the group of compounds as d above, for
the manufacture of a medicament for the treatment of a condition associated with BTK.
An additional aspect of the invention provides a method for ting BTK in a
subject, the method comprising administering to the subject a compound of Formula 1, a
tautomer thereof or a pharmaceutically acceptable salt of the compound or er as
d above, or a compound ed from the group of compounds as defined above.
A further aspect of the ion provides a method of treating a disease, disorder or
condition ated with BTK in a subject, the method comprising administering to the
subject an effective amount of a nd of Formula 1, a tautomer thereof or a
pharmaceutically acceptable salt of the compound or tautomer as defined above, or a
compound selected from the group of compounds as defined above.
An additional aspect of the invention provides a method of treating a disease,
disorder or condition in a t, the method comprising administering to the subject an
effective amount of a nd of Formula 1, a tautomer thereof or a pharmaceutically
acceptable salt of the nd or tautomer as defined above, or a compound selected from
the group of compounds as defined above, wherein the disease, disorder or condition is
selected from Type I hypersensitivity reactions, autoimmune diseases, inflammatory
disorders, cancer, and non-malignant proliferative disorders.
Another aspect of the ion provides a method of treating a disease, disorder or
condition in a subject, the method comprising stering to the subject an effective
amount of a compound of Formula 1, a tautomer thereof or a pharmaceutically acceptable salt
WO 64558
of the compound or tautomer as defined above, or a compound selected from the group of
compounds as defined above, wherein the disease, disorder or condition is selected from
allergic rhinitis, asthma, atopic dermatitis, rheumatoid arthritis, multiple sclerosis, ic
lupus erythematosus, lupus nephritis, psoriasis, immune thrombocytopenic purpura,
inflammatory bowel disease, c obstructive pulmonary e, Sjogren’s syndrome,
ankylosing spondylitis, Behcet’s disease, pemphigus vulgaris, idiopathic plasmacytic
lymphadenopathy, atherosclerosis, myocardial infarction, and thrombosis.
Another aspect of the invention provides a method of treating a disease, disorder or
condition in a subject, the method comprising administering to the subject an effective
amount of a compound of Formula 1, a tautomer thereof or a pharmaceutically able salt
of the compound or tautomer as defined above, or a compound selected from the group of
compounds as defined above, wherein the disease, disorder or condition is selected from B-
cell lymphoma, c lymphocytic leukemia, and multiple myeloma.
A further aspect of the invention provides a ation of an ive amount of a
nd of Formula 1, a tautomer f or a pharmaceutically acceptable salt of the
compound or tautomer as defined above, or a compound selected from the group of
compounds as defined above, and at least one additional pharmacologically active agent.
DETAILED DESCRIPTION OF THE INVENTION
Unless otherwise ted, this disclosure uses definitions provided below.
ituted,” when used in connection with a chemical substituent or moiety (e. g.,
a C1_6 alkyl group), means that one or more hydrogen atoms of the substituent or moiety have
been replaced with one or more non—hydrogen atoms or groups, provided that valence
requirements are met and that a chemically stable compound results from the substitution.
“About” or “approximately,” when used in connection with a measurable numerical
variable, refers to the indicated value of the variable and to all values of the variable that are
within the experimental error of the indicated value or within :10 percent of the indicated
value, whichever is r.
“Alkyl” refers to straight chain and branched saturated hydrocarbon groups,
lly having a specified number of carbon atoms (e. g., C1_4 alkyl refers to an alkyl group
having 1 to 4 (i.e., l, 2, 3 or 4) carbon atoms, C1_6 alkyl refers to an alkyl group having 1 to 6
carbon atoms, and so on). es of alkyl groups include methyl, ethyl, n-propyl, i-propyl,
l, S—butyl, i—butyl, t—butyl, pent-l-yl, pentyl, -yl, 3-methylbut-l-yl, 3-
methylbutyl, 2-methylbut—2-yl, 2,2,2-trimethyleth-l-yl, n-hexyl, and the like.
“Alkenyl” refers to straight chain and branched hydrocarbon groups having one or
more carbon—carbon double bonds, and generally having a specified number of carbon atoms.
Examples of alkenyl groups include ethenyl, l-propen-l-yl, l-propenyl, 2-propen-l-yl, l-
buten—l—yl, l—butenyl, 3-buten-l-yl, nyl, 2-buten-l-yl, 2-butenyl, 2-methyl-l-
propen-l-yl, 2-methylpropen-l-yl, l,3-butadien- l -yl, l,3-butadienyl, and the like.
“Alkynyl” refers to straight chain or ed hydrocarbon groups having one or
more triple carbon-carbon bonds, and generally having a specified number of carbon atoms.
Examples of alkynyl groups include ethynyl, l-propyn-l-yl, 2-propyn-l-yl, l-butyn-l-yl, 3-
butyn-l-yl, 3-butynyl, n-l-yl, and the like.
“Halo,” “halogen” and “halogeno” may be used interchangeably and refer to fluoro,
chloro, bromo, and iodo.
“Haloalkyl,” “haloalkenyl,” and “haloalkynyl,” refer, respectively, to alkyl, alkenyl,
and alkynyl groups substituted with one or more halogen atoms, where alkyl, alkenyl, and
alkynyl are defined above, and generally having a specified number of carbon atoms.
Examples of haloalkyl groups include fluoromethyl, difluoromethyl, trifluoromethyl,
chloromethyl, dichloromethyl, trichloromethyl, and the like.
alkyl” refers to saturated monocyclic and bicyclic arbon groups,
lly having a specified number of carbon atoms that comprise the ring or rings (e. g.,
C340 cycloalkyl refers to a cycloalkyl group having 3 to 10 carbon atoms as ring members).
Bicyclic hydrocarbon groups may include spiro rings (two rings sharing one carbon atom),
fused rings (two rings sharing two carbon atoms and the bond between the two common
carbon atoms), and bridged rings (two rings sharing two carbon atoms, but not a common
bond). The cycloalkyl group may be attached through any ring atom unless such attachment
would e valence requirements.
Examples of monocyclic cycloalkyl groups include cyclopropyl, cyclobutyl,
cyclopentyl, cyclohexyl, and the like. Examples of fused bicyclic cycloalkyl groups include
o[2. 1.0]pentanyl (i.e., bicyclo[2.1.0]pentan-l—yl, o[2.1.0]pentan—2-yl, and
bicyclo[2.1.0]pentan—5—yl), bicyclo[3. 1.0]hexanyl, bicyclo[3.2.0]heptanyl,
bicyclo[4. 1.0]heptanyl, o[3.3.0]octanyl, bicyclo[4.2.0]octanyl, bicyclo[4.3.0]nonanyl,
bicyclo[4.4.0]decanyl, and the like. Examples of bridged cycloalkyl groups include
bicyclo[2. l. l]hexanyl, bicyclo[2.2.l]heptanyl, bicyclo[3. l. l]heptanyl, bicyclo[2.2.2]octanyl,
WO 64558
bicyclo[3.2. l]octanyl, bicyclo[4. l. l]octanyl, bicyclo[3.3. l]nonanyl, bicyclo[4.2. l]nonanyl,
bicyclo[3.3.2]decanyl, o[4.2.2]decanyl, bicyclo[4.3. l]decanyl,
bicyclo[3.3.3]undecanyl, bicyclo[4.3.2]undecanyl, bicyclo[4.3.3]dodecanyl, and the like.
es of spiro cycloalkyl groups include spiro[3.3]heptanyl, spiro[2.4]heptanyl,
spiro[3.4]octanyl, spiro[2.5]octanyl, spiro[3.5]nonanyl, and the like.
“Cycloalkylidene” refers to divalent monocyclic cycloalkyl groups, where
cycloalkyl is defined above, which are attached through a single carbon atom of the group,
and generally having a specified number of carbon atoms that comprise the ring (e. g.,
C3_6 lkylidene refers to a cycloalkylidene group having 3 to 6 carbon atoms as ring
members). Examples include cyclopropylidene, cyclobutylidene, cyclopentylidene, and
exylidene.
“Cycloalkenyl” refers to partially unsaturated monocyclic and bicyclic hydrocarbon
groups, generally having a specified number of carbon atoms that comprise the ring or rings.
As with cycloalkyl groups, the bicyclic cycloalkenyl groups may include spiro, fused, or
bridged rings. Similarly, the cycloalkenyl group may be ed through any ring atom, and
when stated, may include one or more drogen substituents unless such ment or
substitution would violate valence requirements. Examples of cycloalkenyl groups include
the partially rated analogs of the cycloalkyl groups described above, such as
cyclobutenyl (i.e., cyclobuten—l—yl and cyclobuten—3 —yl), cyclopentenyl, cyclohexenyl,
bicyclo[2.2. l]heptenyl, and the like.
“Aryl” refers to fully unsaturated monocyclic aromatic hydrocarbons and to
polycyclic hydrocarbons having at least one aromatic ring, both monocyclic and polycyclic
aryl groups generally having a specified number of carbon atoms that comprise their ring
members (e. g., C644 aryl refers to an aryl group having 6 to 14 carbon atoms as ring
members). The group may be attached through any ring atom unless such attachment would
violate valence requirements. es of aryl groups include phenyl, cyclobutabenzenyl,
indenyl, naphthalenyl, benzocycloheptanyl, ylenyl, fluorenyl, groups derived from
cycloheptatriene cation, and the like.
“Arylene” refers to divalent aryl groups, where aryl is defined above. Examples of
arylene groups include ene (i.e., benzene—1,2—diyl).
“Heterocycle” and “heterocyclyl” may be used interchangeably and refer to
saturated or partially rated monocyclic or bicyclic groups having ring atoms ed
of carbon atoms and l to 4 heteroatoms independently selected from nitrogen, oxygen, and
sulfur. Both the monocyclic and bicyclic groups generally have a specified number of carbon
atoms in their ring or rings (e.g., C2_6 heterocyclyl refers to a heterocyclyl group having 2 to 6
carbon atoms and l to 4 atoms as ring members). As with ic lkyl groups,
bicyclic heterocyclyl groups may include spiro rings, fused rings, and bridged rings. The
heterocyclyl group may be attached through any ring atom unless such ment would
violate valence requirements or result in a chemically unstable compound. Examples of
monocyclic heterocyclyl groups include oxiranyl, thiiranyl, aziridinyl (e.g., aziridin-l-yl and
aziridin-2—yl), oxetanyl, thietanyl, azetidinyl, tetrahydrofuranyl, tetrahydrothiopheneyl,
pyrrolidinyl, tetrahydropyranyl, tetrahydrothiopyranyl, piperidinyl, l,4-dioxanyl, l,4-
oxathianyl, morpholinyl, l,4-dithianyl, zinyl, l,4-azathianyl, oxepanyl, thiepanyl,
azepanyl, l,4-dioxepanyl, l,4-oxathiepanyl, aazepanyl, l,4-dithiepanyl, l,4-
panyl, l,4-diazepanyl, 3,4-dihydro-2H—pyranyl, 3,6-dihydro-2H—pyranyl, 2H—pyranyl,
l,2-dihydropyridine, l,2,3,4-tetrahydropyridinyl, and l,2,5,6-tetrahydropyridinyl.
“Heterocycle—diyl” refers to heterocyclyl groups which are attached h two
ring atoms of the group, where heterocyclyl is defined above. They generally have a specified
number of carbon atoms in their ring or rings (e. g., C2_6 heterocycle-diyl refers to a
heterocycle-diyl group having 2 to 6 carbon atoms and l to 4 heteroatoms as ring members).
Examples of heterocycle-diyl groups include the multivalent analogs of the heterocycle
groups described above, such as morpholine—3,4—diyl, pyrrolidine—l,2—diyl, l-pyrrolidinyl—2—
ylidene, l-pyridinyl-2—ylidene, l-(4H)-pyrazolylylidene, —imidazolyl-2—ylidene, 3-
oxazolylylidene, l-piperidinyl-2—ylidene, razinylylidene, and the like.
“Heteroaromatic” and oaryl” may be used interchangeably and refer to
unsaturated monocyclic aromatic groups and to polycyclic groups having at least one
aromatic ring, each of the groups having ring atoms composed of carbon atoms and l to 4
heteroatoms independently ed from nitrogen, oxygen, and sulfur. Both the monocyclic
and polycyclic groups generally have a specified number of carbon atoms as ring members
(e. g., C1_9 heteroaryl refers to a heteroaryl group having 1 to 9 carbon atoms and l to 4
heteroatoms as ring members) and may include any bicyclic group in which any of the above—
listed monocyclic cycles are fused to a benzene ring. The heteroaryl group may be
attached through any ring atom unless such attachment would violate valence requirements or
result in a chemically unstable nd. Examples of heteroaryl groups include monocyclic
groups such as yl (e. g., pyrrol-l-yl, pyrrol-2—yl, and pyrrol-3 -yl), furanyl, thiopheneyl,
pyrazolyl, imidazolyl, isoxazolyl, oxazolyl, isothiazolyl, thiazolyl, l,2,3—triazolyl, 1,3,4—
triazolyl, l—oxa—2,3—diazolyl, l—oxa—2,4—diazolyl, 2,5—diazolyl, l—oxa—3,4—diazolyl, l—
thia—2,3—diazolyl, l—thia—2,4—diazolyl, l—thia—2,5—diazolyl, l—thia—3,4—diazolyl, tetrazolyl,
pyridinyl, pyridazinyl, pyrimidinyl, and pyrazinyl.
Examples of heteroaryl groups also include bicyclic groups such as benzofuranyl,
isobenzofuranyl, benzothiopheneyl, benzo[c]thiopheneyl, indolyl, olyl, isoindolyl, 1H-
isoindolyl, indolinyl, isoindolinyl, benzimidazolyl, indazolyl, benzotriazolyl, lH-pyrrolo[2,3-
b]pyridinyl, lH—pyrrolo[2,3-c]pyridinyl, lH—pyrrolo[3,2-c]pyridinyl, lH—pyrrolo[3,2—
b]pyridinyl, 3H—imidazo[4,5-b]pyridinyl, 3H—imidazo[4,5-c]pyridinyl, lH—pyrazolo[4,3-
b]pyridinyl, lH—pyrazolo[4,3-c]pyridinyl, lH—pyrazolo[3,4-c]pyridinyl, lH—pyrazolo[3,4-
b]pyridinyl, 7H—purinyl, zinyl, imidazo[l,2—a]pyridinyl, imidazo[l,5-a]pyridinyl,
pyrazolo[l,5-a]pyridinyl, pyrrolo[l,2-b]pyridazinyl, imidazo[l,2-c]pyrimidinyl, quinolinyl,
isoquinolinyl, cinnolinyl, quinazolinyl, quinoxalinyl, phthalazinyl, l,6-naphthyridinyl, 1,7-
naphthyridinyl, l,8-naphthyridinyl, l,5-naphthyridinyl, 2,6-naphthyridinyl, 2,7-
naphthyridinyl, pyrido[3,2—d]pyrimidinyl, [4,3-d]pyrimidinyl, pyrido[3,4-
d]pyrimidinyl, pyrido[2,3-d]pyrimidinyl, pyrido[2,3-b]pyrazinyl, [3,4-b]pyrazinyl,
pyrimido[5,4-d]pyrimidinyl, pyrazino[2,3-b]pyrazinyl, and pyrimido[4,5-d]pyrimidinyl.
“Heteroarylene” refers to heteroaryl groups which are attached through two ring
atoms of the group, where heteroaryl is defined above. They generally have a specified
number of carbon atoms in their ring or rings (e. g., C3_5 arylene refers to a
heteroarylene group having 3 to 5 carbon atoms and l to 4 atoms as ring members).
es of heteroarylene groups include the multivalent analogs of the heteroaryl groups
described above, such as pyridine—2,3—diyl, pyridine—3,4—diyl, pyrazole—4,5-diyl, pyrazole—3,4—
diyl, and the like.
“Oxo” refers to a double bonded oxygen (=0).
“Leaving group” refers to any group that leaves a molecule during a fragmentation
process, including substitution reactions, elimination reactions, and addition—elimination
reactions. Leaving groups may be nucleofugal, in which the group leaves with a pair of
electrons that formerly served as the bond between the leaving group and the le, or
may be electrofugal, in which the group leaves without the pair of electrons. The ability of a
nucleofugal g group to leave depends on its base strength, with the strongest bases
being the poorest leaving groups. Common nucleofugal leaving groups include en (e. g.,
from diazonium salts); sulfonates, including ulfonates (e. g., mesylate),
fluoroalkylsulfonates (e. g., triflate, te, nonaflate, and tresylate), and arylsulfonates
(e. g., tosylate, brosylate, closylate, and nosylate). Others include ates, halide ions,
carboxylate anions, phenolate ions, and alkoxides. Some stronger bases, such as NH{ and
OH_ can be made better leaving groups by treatment with an acid. Common electrofugal
leaving groups include the proton, C02, and metals.
“Opposite enantiomer” refers to a molecule that is a non—superimposable mirror
image of a reference molecule, which may be obtained by inverting all of the stereogenic
centers of the reference le. For example, if the reference molecule has S absolute
stereochemical configuration, then the opposite enantiomer has R absolute stereochemical
configuration. Likewise, if the reference molecule has S,S absolute stereochemical
configuration, then the opposite omer has R,R stereochemical configuration, and so on.
“Stereoisomer” and “stereoisomers” of a compound with given stereochemical
configuration refer to the opposite omer of the compound and to any diastereoisomers,
including geometrical isomers (2/15) of the compound. For example, if a compound has S,R,Z
stereochemical configuration, its stereoisomers would include its opposite enantiomer having
R,S,Z configuration, and its diastereomers having S,S,Z configuration, R,R,Z uration,
S,R,E configuration, R,S,E configuration, S,S,E uration, and R,R,E configuration. If the
stereochemical uration of a compound is not specified, then “stereoisomer” refers to
any one of the possible stereochemical configurations of the compound.
“Substantially pure isomer” and variants thereof refer to a sample containing a
compound having a specific stereochemical configuration and which comprises at least about
95% of the sample.
“Pure isomer” and variants thereof refer to a sample containing a compound
having a specific stereochemical configuration and which ses at least about 99.5% of
the sample.
“Subject” refers to a mammal, including a human.
aceutically acceptable” substances refer to those substances which are
suitable for administration to subjects.
“Treating” refers to reversing, alleviating, inhibiting the progress of, or preventing a
disease, disorder or condition to which such term applies, or to reversing, alleviating,
inhibiting the progress of, or preventing one or more symptoms of such disorder, e or
condition.
“Treatment” refers to the act of “treating,” as defined immediately above.
“Drug,” “drug substance,” “active pharmaceutical ingredient,” and the like, refer to
a compound (e. g., compounds of Formula 1, including subgeneric nds and
compounds specifically named in the specification) that may be used for treating a subject in
need of treatment.
“Effective ” of a drug, “therapeutically effective amount” of a drug, and the
like, refer to the quantity of the drug that may be used for treating a subject and may depend
on the weight and age of the subject and the route of administration, among other things.
“Excipient” refers to any t or vehicle for a drug.
“Pharmaceutical composition” refers to the combination of one or more drug
substances and one or more excipients.
“Drug product,” “pharmaceutical dosage form,” “dosage form,” “final dosage form”
and the like, refer to a pharmaceutical composition suitable for ng a subject in need of
treatment and generally may be in the form of tablets, capsules, sachets containing powder or
granules, liquid solutions or suspensions, patches, films, and the like.
“Condition associated with BTK” and similar phrases relate to a disease, disorder or
condition in a subject for which tion of BTK may provide a therapeutic or prophylactic
The following abbreviations are used throughout the ication: Ac l);
ACN (acetonitrile); AIBN (azo-bis-isobutyronitrile); API (active pharmaceutical ingredient);
aq (aqueous); Boc (tert—butoxycarbonyl); Cbz (carbobenzyloxy); CD1 (l,l’—
carbonyldiimidazole); dba (dibenzylideneacetone); DBU (l,8—diazabicyclo[5.4.0]undec—1(7)—
ene); DCC icyclohexylcarbodiimide); DCM (dichloromethane); DIPEA (N,N—
diisopropylethylamine, Hiinig’s Base); DMA (N,N—dimethylacetamide); DMAP (4-
dimethylaminopyridine); DMARD (disease ing antirheumatic drug); DME (1,2-
dimethoxyethane); DMF (N,N—dimethylformamide); DMSO (dimethylsulfoxide); DPPA
(diphenylphosphoryl azide); dppf (l,l’-bis(diphenylphosphino)ferrocene); DTT
othreitol); EDA ethoxylated dodecyl alcohol, Brj®35); EDC (N—(3—
dimethylaminopropyl)-N’ -ethylcarbodiimide); EDTA (ethylenediaminetetraacetic acid); ee
(enantiomeric ); eq (equivalents); Et (ethyl); Et3N (triethyl-amine); EtOAc (ethyl
acetate); EtOH (ethanol); 5-FAM (5-carboxyfluorescein); HATU (2-(3H—[l,2,3]triazolo[4,5-
b]pyridinyl)-l,l,3,3-tetramethyluronium hexafluorophosphate(V)); HEPES (4-(2-
hydroxyethyl)piperazine-l-ethanesulfonic acid); HOAc (acetic acid); HOBt (1H-
benzo[d][l,2,3]triazol-l-ol); IC50 (concentration at 50% inhibition); IPA (isopropanol); IPAc
(isopropyl acetate); IPE opylether); LDA (lithium diisopropylamide); LiHMDS (lithium
bis(trimethylsilyl)amide); mCPBA (m-chloroperoxybenzoic acid); Me (methyl); MeOH
(methanol); MTBE (methyl tert—butyl ether); mp (melting point); NaOt—Bu (sodium tertiary
butoxide); NMM (N—methylmorpholine); NMP (l-methylpyrrolidinone); PE (petroleum
ether); Ph (phenyl); pIC50 (-log10(IC50), where IC50 is given in molar (M) ; Pr l);
i-Pr (isopropyl); PTFE (polytetrafluoroethylene); RT (room temperature, approximately 20°C
to 25°C); TCEP (tris(2-carboxyethyl)phosphine); Tf (trifluoromethylsulfonyl); TFA
(trifluoroacetic acid); TFAA (2,2,2-trifluoroacetic anhydride); THF (tetrahydrofuran); TMS
(trimethylsilyl); and Tris buffer (2-aminohydroxymethyl-propane-l,3-diol buffer).
As described, below, this disclosure concerns compounds of Formula 1, tautomers
thereof, and pharmaceutically acceptable salts thereof. This disclosure also concerns
materials and methods for preparing compounds of Formula 1, pharmaceutical compositions
which contain them, and the use of compounds of Formula 1 and their pharmaceutically
acceptable salts (optionally in combination with other pharmacologically active agents) for
treating Type I hypersensitivity reactions, autoimmune es, inflammatory disorders,
cancer, non-malignant proliferative disorders, and other es, disorders or conditions
associated with BTK.
In addition to the specific compounds in the examples, compounds of a 1
e those in which: (i) R1 is ed from hydrogen, halo, methyl, and —OCH3; (ii) R1 is
selected from hydrogen, halo, and methyl; (iv) R1 is selected from hydrogen and methyl; or
(v) R1 is hydrogen.
In addition, or as an alternative, to one of embodiments (i)-(v) in the immediately
preceding paragraph, compounds of a 1 include those in which: (vi) R2 and R3 are
each ndently selected from hydrogen, halo, and ; (vii) R2 and R3 are each
independently selected from hydrogen, fluoro, chloro, and methyl; (viii) R2 is methyl and R3
is hydrogen; (ix) R2 is hydrogen and R3 is methyl; or (x) R2 and R3 are each hydrogen.
In addition, or as an alternative, to one of embodiments (i)—(v) above, compounds of
a 1 include those in which R2 and R3, together with the carbon atoms to which they
are attached, form a benzene ring, and: (xi) the benzene ring is optionally substituted with
from one to four substituents independently selected from halo, -CN, R6, and R7; (xii) the
benzene ring is optionally substituted with from one to four substituents independently
ed from halo and C1_6 alkyl; (xiii) the benzene ring is optionally substituted with from
one to four substituents independently selected from fluoro, chloro, and methyl; (xiv) the
benzene ring is optionally substituted with one to two substituents independently selected
from fluoro, chloro, and ; or (xv) the benzene ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, compounds of
Formula 1 include those in which R2 and R3, together with the carbon atoms to which they
are attached, form a ne ring, and: (xvi) the pyridine ring is optionally substituted with
from one to three substituents independently selected from halo, —CN, R6, and R7; (xvii) the
pyridine ring is ally substituted with from one to three substituents independently
selected from halo and C1_6 alkyl; (xviii) the pyridine ring is optionally substituted with from
one to three substituents independently selected from fluoro, , and methyl; (xix) the
pyridine ring is optionally substituted with one or two substituents independently selected
from fluoro, , and ; or (xx) the pyridine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, compounds of
Formula 1 include those in which R2 and R3, together with the carbon atoms to which they
are attached, form a pyridine ring having a nitrogen ring atom that is directly bonded to the
carbon atom attached to R3, and: (xxi) the pyridine ring is optionally substituted with from
one to three substituents ndently selected from halo, —CN, R6, and R7; (xxii) the
pyridine ring is optionally substituted with from one to three substituents independently
selected from halo and C1_6 alkyl; (xxiii) the pyridine ring is optionally substituted with from
one to three substituents independently selected from fluoro, chloro, and methyl; (xxiv) the
ne ring is optionally substituted with one or two substituents independently ed
from fluoro, chloro, and methyl; or (xxv) the pyridine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)-(xxv) in the preceding paragraphs, compounds of Formula 1 include those
in which L is —N(R4e)-, R40 is hydrogen, and R4b and RM, er with the en atom and
the carbon atoms to which R“, R46, and R4d are respectively attached, form a pyrrolidine ring,
and: (xxvi) R46 is selected from hydrogen and C1_4 alkyl, and the pyrrolidine ring is optionally
tuted with from one to six substituents ndently selected from halo, C1_4 alkyl, and
C1_4 haloalkyl; (xxvii) R46 is selected from hydrogen and C1_4 alkyl, and the pyrrolidine ring is
optionally substituted with from one to four substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (xxviii) R46 is en and the pyrrolidine ring is optionally
substituted with from one to four substituents independently selected from halo, C1_4 alkyl,
and C1_4 haloalkyl; (xxix) R46 is hydrogen and the pyrrolidine ring is optionally substituted
with one or two substituents ndently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
or (xxx) R46 is hydrogen and the pyrrolidine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
ments (vi)—(xxv) in the preceding paragraphs, compounds of Formula 1 e those
in which L is —N(R4e)-, R“ is hydrogen, and R4b and RM, together with the nitrogen atom and
the carbon atoms to which R“, R4 and R4d are respectively attached, form a piperidine ring,
and: (xxxi) R46 is selected from en and C1_4 alkyl, and the piperidine ring is optionally
substituted with from one to six substituents independently selected from halo, C1_4 alkyl, and
C1_4 haloalkyl; (xxxii) R46 is selected from en and C1_4 alkyl, and the piperidine ring is
optionally substituted with from one to four substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (xxxiii) R46 is hydrogen and the piperidine ring is optionally
substituted with from one to four substituents independently selected from halo, C1_4 alkyl,
and C1_4 haloalkyl; (xxxiv) R46 is hydrogen and the piperidine ring is optionally tuted
with one or two substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
or (xxxv) R46 is hydrogen and the piperidine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the ing aphs, compounds of Formula 1 include those
in which L is —N(R4e)-, R4d is hydrogen, and R“ and R46, together with the carbon atoms and
the nitrogen atom to which R46, R“, and R46 are respectively attached, form a pyrrolidine
ring, and: (xxxvi) R4b is selected from hydrogen and C1_4 alkyl, and the pyrrolidine ring is
optionally substituted with from one to six substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (xxxvii) R4b is selected from en and C1_4 alkyl, and the
idine ring is optionally substituted with from one to four substituents independently
selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (xxxviii) R4b is hydrogen and the
pyrrolidine ring is optionally substituted with from one to four substituents independently
selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (xxxix) R4b is en and the pyrrolidine
ring is optionally substituted with one or two substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; or (x1) R4b is hydrogen and the pyrrolidine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
ments (vi)—(xxv) in the ing paragraphs, compounds of Formula 1 include those
in which L is —N(R4e)-, R4d is hydrogen, and R40 and R46, together with the carbon atoms and
the nitrogen atom to which R46, R“, and R46 are respectively attached, form a piperidine ring,
and: (xli) R4b is selected from hydrogen and C1_4 alkyl, and the piperidine ring is optionally
substituted with from one to six substituents independently selected from halo, C1_4 alkyl, and
C1_4 haloalkyl; (xlii) R4b is selected from hydrogen and C1_4 alkyl, and the piperidine ring is
optionally substituted with from one to four substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (xliii) R4b is hydrogen and the piperidine ring is optionally
substituted with from one to four substituents independently selected from halo, C1_4 alkyl,
and C1_4 haloalkyl; (xliv) R4b is hydrogen and the piperidine ring is ally substituted
with one or two tuents ndently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
or (xlv) R4b is hydrogen and the dine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the preceding paragraphs, nds of Formula 1 include those
in which L is —N(R4e)-, R4d is hydrogen, and R4b and R46, together with the nitrogen and
carbon atoms to which R4b and R40 are respectively attached, form a pyrrolidine ring, and:
(xlvi) R46 is selected from hydrogen and C1_4 alkyl, and the idine ring is optionally
substituted with from one to six substituents independently selected from halo, C1_4 alkyl, and
C1_4 haloalkyl; (xlvii) R46 is selected from hydrogen and C1_4 alkyl, and the pyrrolidine ring is
optionally substituted with from one to four substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (xlviii) R46 is en and the pyrrolidine ring is optionally
substituted with from one to four substituents independently selected from halo, C1_4 alkyl,
and C1_4 haloalkyl; (xlix) R46 is hydrogen and the pyrrolidine ring is optionally substituted
with one or two substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
or (1) R46 is en and the idine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the preceding paragraphs, compounds of Formula 1 include those
in which L is —N(R4e)-, R4d is hydrogen, and R4b and R46, together with the nitrogen and
carbon atoms to which R4b and R“ are respectively attached, form a piperidine ring, and: (li)
R46 is selected from hydrogen and C1_4 alkyl, and the piperidine ring is optionally substituted
with from one to six substituents independently ed from halo, C1_4 alkyl, and C1_4
haloalkyl; (lii) R46 is selected from hydrogen and C1_4 alkyl, and the piperidine ring is
optionally substituted with from one to four substituents ndently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (liii) R46 is hydrogen and the dine ring is optionally
substituted with from one to four substituents independently selected from halo, C1_4 alkyl,
and C1_4 haloalkyl; (liv) R46 is hydrogen and the piperidine ring is ally substituted with
one or two substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; or
(IV) R46 is hydrogen and the piperidine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments xxv) in the preceding paragraphs, compounds of Formula 1 include those
in which L is —O-, R“ is hydrogen, and R4b and RM, together with the nitrogen atom and the
carbon atoms to which R“, R4 and R4d are respectively attached, form a pyrrolidine ring,
and: (lvi) the pyrrolidine ring is optionally substituted with from one to six substituents
ndently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lvii) the pyrrolidine ring is
optionally substituted with from one to four tuents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (lviii) the pyrrolidine ring is optionally tuted with from
one to three substituents independently selected from halo, C1_4 alkyl, and C1_4 kyl; (lix)
the pyrrolidine ring is optionally substituted with one or two substituents independently
selected from halo, C1_4 alkyl, and C1_4 haloalkyl; or (lx) the pyrrolidine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments xxv) in the ing aphs, nds of Formula 1 include those
in which L is —O-, R40 is hydrogen, and R4b and RM, together with the nitrogen atom and the
carbon atoms to which R“, R46, and R4d are tively attached, form a piperidine ring,
and: (lxi) the piperidine ring is optionally tuted with from one to six substituents
independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lxii) the piperidine ring is
optionally substituted with from one to four substituents ndently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; ) the piperidine ring is optionally substituted with from
one to three substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
(lxiv) the piperidine ring is optionally substituted with one or two substituents independently
selected from halo, C1_4 alkyl, and C1_4 haloalkyl; or (lxv) the piperidine ring is unsubstituted.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the preceding paragraphs, compounds of Formula 1 include those
in which L is —O-, R4d is hydrogen, and R4b and R“, together with the nitrogen and carbon
atoms to which R4b and R40 are respectively attached, form a pyrrolidine ring, and: (lxvi) the
pyrrolidine ring is optionally substituted with from one to six substituents independently
selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lxvii) the pyrrolidine ring is optionally
substituted with from one to four substituents independently selected from halo, C1_4 alkyl,
and C1_4 haloalkyl; (lxviii) the pyrrolidine ring is optionally substituted with from one to three
substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lxix) the
idine ring is optionally substituted with one or two substituents independently selected
from halo, C1_4 alkyl, and C1_4 haloalkyl; or (lxx) the pyrrolidine ring is tituted.
In addition, or as an alternative, to one of embodiments ) above, or to one of
embodiments (vi)—(xxv) in the preceding paragraphs, compounds of Formula 1 e those
in which L is —O-, R4d is hydrogen, and R4b and R“, together with the nitrogen and carbon
atoms to which R4b and R40 are respectively attached, form a piperidine ring, and: (lxxi) the
piperidine ring is optionally substituted with from one to six substituents independently
selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lxxii) the piperidine ring is optionally
substituted with from one to four substituents independently selected from halo, C1_4 alkyl,
and C1_4 kyl; (lxxiii) the piperidine ring is optionally substituted with from one to three
substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lxxiv) the
piperidine ring is optionally substituted with one or two substituents independently selected
from halo, C1_4 alkyl, and C1_4 haloalkyl; or (lxxv) the piperidine ring is unsubstituted.
In addition, or as an ative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the preceding paragraphs, compounds of Formula 1 include those
in which L is , R40 is en, and R4b and RM, together with the nitrogen atom and
the carbon atoms to which R“, R46, and R4d are respectively ed, form a pyrrolidine ring,
and: (lxxvi) the pyrrolidine ring is optionally substituted with from one to six substituents
independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lxxvii) the pyrrolidine ring
is optionally substituted with from one to four substituents ndently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (lxxviii) the pyrrolidine ring is optionally substituted with from
one to three substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
(lxxix) the pyrrolidine ring is optionally substituted with one or two substituents
independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; or (lxxx) the pyrrolidine ring
is unsubstituted; wherein in embodiments (lxxvi)-(lxxx), the O atom of L is directly bonded
to the carbon atom attached to R“.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the preceding aphs, compounds of Formula 1 include those
in which L is —CH20—, R40 is hydrogen, and R4b and RM, together with the en atom and
the carbon atoms to which R“, R4 and R4d are respectively attached, form a piperidine ring,
and: (lxxxi) the dine ring is optionally substituted with from one to six substituents
independently selected from halo, C1_4 alkyl, and C1_4 kyl; (lxxxii) the dine ring is
optionally substituted with from one to four substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (lxxxiii) the dine ring is optionally substituted with from
one to three tuents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
(lxxxiv) the piperidine ring is optionally substituted with one or two substituents
independently ed from halo, C1_4 alkyl, and C1_4 haloalkyl; or (lxxxv) the piperidine ring
is unsubstituted; wherein in embodiments (lxxxi)—(lxxxv), the O atom of L is directly bonded
to the carbon atom attached to R“.
In addition, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the ing paragraphs, compounds of Formula 1 include those
in which L is —CH20—, R4d is hydrogen, and R4b and R“, together with the nitrogen and
carbon atoms to which R4b and R“ are respectively attached, form a pyrrolidine ring, and:
(lxxxvi) the pyrrolidine ring is ally substituted with from one to six substituents
independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (lxxxvii) the pyrrolidine ring
is optionally substituted with from one to four substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (lxxxviii) the pyrrolidine ring is optionally substituted with
from one to three substituents independently selected from halo, C1_4 alkyl, and
C1_4 haloalkyl; (lxxxix) the pyrrolidine ring is ally substituted with one or two
substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; or (xc) the
pyrrolidine ring is unsubstituted; wherein in embodiments (lxxxvi)-(xc), the O atom of L is
directly bonded to the carbon atom attached to RM.
In on, or as an alternative, to one of embodiments (i)—(v) above, or to one of
embodiments (vi)—(xxv) in the preceding paragraphs, compounds of a 1 include those
in which L is —CH20—, R4d is hydrogen, and R4b and R“, together with the nitrogen and
carbon atoms to which R4b and R40 are respectively attached, form a piperidine ring, and:
(xci) the piperidine ring is optionally substituted with from one to six tuents
independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl; (xcii) the piperidine ring is
optionally substituted with from one to four substituents independently selected from halo,
C1_4 alkyl, and C1_4 haloalkyl; (xciii) the piperidine ring is optionally tuted with from
one to three substituents independently selected from halo, C1_4 alkyl, and C1_4 haloalkyl;
(xciv) the piperidine ring is optionally tuted with one or two substituents independently
selected from halo, C1_4 alkyl, and C1_4 haloalkyl; or (xcv) the piperidine ring is unsubstituted;
wherein in embodiments (xci)—(xcv), the O atom of L is directly bonded to the carbon atom
attached to RM.
In addition, or as an alternative, to one of embodiments (i)—(v) above, to one of
embodiments (vi)—(xxv) above, or to one of embodiments (xxvi)—(xcv) in the preceding
paragraphs, compounds of Formula 1 include those in which: (xcvi) R4a is ethenyl ally
substituted with from one to three substituents independently selected from halo, cyano, and
R7; (xcvii) R4a is ethenyl optionally substituted with from one to three methyl groups; (xcviii)
R4a is ethenyl optionally substituted with one or two substituents independently selected from
halo, cyano, and R7; (xcix) R4a is ethenyl optionally substituted with one or two methyl
; or (c) R4a is ethenyl.
In addition, or as an alternative, to one of embodiments (i)—(v) above, to one of
embodiments xxv) above, to one of embodiments —(xcv) above, and to one of
embodiments (xcvi)-(c) in the immediately preceding paragraph, compounds of Formula 1
e those in which: (ci) each m is independently selected from 0, l, 2, and 3; (cii) each m
is independently ed from 0, l, and 2; (ciii) each m is independently selected from 0 and
l; or (civ) each m is 0.
Compounds of Formula 1, including embodiments (i) through (civ) described in the
preceding paragraphs and all compounds specifically named in the examples, may exist as
salts, complexes, es, hydrates, and liquid crystals. Likewise, nds of Formula 1
that are salts may exist as complexes, solvates, hydrates, and liquid crystals.
Compounds of Formula 1 may form pharmaceutically acceptable complexes, salts,
solvates and hydrates. These salts include acid addition salts (including di-acids) and base
salts. Pharmaceutically acceptable acid addition salts include salts derived from inorganic
acids such as hydrochloric acid, nitric acid, phosphoric acid, sulfuric acid, hydrobromic acid,
hydroiodic acid, hydrofluoric acid, and phosphorous acids, as well nontoxic salts derived
from organic acids, such as tic mono- and dicarboxylic acids, phenyl—substituted
alkanoic acids, hydroxy ic acids, alkanedioic acids, aromatic acids, aliphatic and
aromatic sulfonic acids, etc. Such salts include acetate, adipate, aspartate, benzoate, besylate,
bicarbonate, carbonate, bisulfate, sulfate, , camsylate, citrate, cyclamate, edisylate,
esylate, formate, fumarate, gluceptate, gluconate, glucuronate, hexafluorophosphate,
hibenzate, hydrochloride/chloride, hydrobromide/bromide, hydroiodide/iodide, isethionate,
lactate, malate, maleate, malonate, mesylate, sulfate, naphthylate, ylate,
nicotinate, nitrate, orotate, oxalate, palmitate, pamoate, phosphate, hydrogen phosphate,
dihydrogen phosphate, pyroglutamate, saccharate, stearate, succinate, tannate, tartrate,
tosylate, trifluoroacetate and xinofoate salts.
Pharmaceutically able base salts include salts derived from bases, including
metal cations, such as an alkali or alkaline earth metal cation, as well as amines. Examples of
suitable metal cations include sodium, potassium, magnesium, calcium, zinc, and aluminum.
Examples of suitable amines include arginine, N,N’ -dibenzylethylenediamine,
chloroprocaine, choline, diethylamine, diethanolamine, dicyclohexylamine, ethylenediamine,
glycine, lysine, N—methylglucamine, olamine, 2-aminohydroxymethyl-propane-l,3-diol,
and procaine. For a discussion of useful acid on and base salts, see S. M. Berge et al., J.
Pharm. Sci. (1977) 66: 1—19; see also Stahl and Wermuth, Handbook ofPharmaceutical Salts:
Properties, Selection, and Use (2002).
ceutically acceptable salts may be prepared using s methods. For
example, a compound of Formula 1 may be reacted with an appropriate acid or base to give
the desired salt. Alternatively, a sor of the compound of Formula 1 may be reacted with
an acid or base to remove an acid- or base-labile protecting group or to open a lactone or
lactam group of the precursor. Additionally, a salt of the compound of Formula 1 may be
converted to another salt (or free form) through treatment with an appropriate acid or base or
through contact with an ion exchange resin. Following reaction, the salt may be isolated by
tion if it precipitates from solution, or by evaporation to recover the salt. The degree of
ionization of the salt may vary from completely ionized to almost non-ionized.
Compounds of Formula 1 may exist in a continuum of solid states ranging from
fully amorphous to fully crystalline. The term “amorphous” refers to a state in which the
material lacks long range order at the lar level and, depending upon temperature, may
exhibit the physical properties of a solid or a liquid. Typically such materials do not give
distinctive X-ray ction patterns and, while exhibiting the properties of a solid, are more
formally bed as a liquid. Upon heating, a change from solid to liquid properties occurs
which is characterized by a change of state, lly second order (“glass tion”). The
term “crystalline” refers to a solid phase in which the material has a regular d internal
structure at the molecular level and gives a distinctive X-ray diffraction pattern with defined
peaks. Such materials when heated sufficiently will also exhibit the properties of a liquid, but
the change from solid to liquid is characterized by a phase change, typically first order
(“melting ).
Compounds of a 1 may also exist in unsolvated and solvated forms. The
term “solvate” describes a molecular complex comprising the compound and one or more
pharmaceutically acceptable solvent molecules (e.g., ethanol). The term “hydrate” is a solvate
in which the t is water. Pharmaceutically acceptable solvates include those in which the
solvent may be ically substituted (e. g., D20, acetone—d6, DMSO—d6).
A currently accepted classification system for solvates and hydrates of organic
compounds is one that distinguishes between isolated site, channel, and ion
coordinated solvates and hydrates. See, e. g., K. R. Morris (H. G. Brittain ed.) Polymorphism
in Pharmaceutical Solids (1995). Isolated site solvates and hydrates are ones in which the
solvent (e. g., water) molecules are isolated from direct contact with each other by intervening
molecules of the c compound. In channel solvates, the solvent molecules lie in lattice
channels where they are next to other solvent molecules. In metal—ion coordinated solvates,
the solvent molecules are bonded to the metal ion.
When the solvent or water is tightly bound, the complex will have a well-defined
stoichiometry independent of humidity. When, however, the solvent or water is weakly
bound, as in channel solvates and in hygroscopic compounds, the water or solvent t
will depend on humidity and drying conditions. In such cases, non-stoichiometry will
lly be observed.
Compounds of a 1 may also exist as multi-component complexes (other than
salts and solvates) in which the nd (drug) and at least one other component are
present in stoichiometric or non-stoichiometric amounts. Complexes of this type include
clathrates (drug-host inclusion complexes) and co-crystals. The latter are typically defined as
crystalline complexes of neutral molecular constituents which are bound together through
valent interactions, but could also be a complex of a neutral molecule with a salt. Co-
crystals may be ed by melt crystallization, by recrystallization from solvents, or by
physically grinding the components together. See, e. g., 0. Almarsson and M. J. Zaworotko,
Chem. Commun. (2004) 17:1889—1896. For a general review of multi—component xes,
see I. K. Haleblian, J. Pharm. Sci. (1975) 64(8):l269—88.
When ted to suitable conditions, nds of Formula 1 may exist in a
mesomorphic state (mesophase or liquid crystal). The mesomorphic state lies between the
true crystalline state and the true liquid state (either melt or on). Mesomorphism arising
as the result of a change in temperature is described as “thermotropic” and mesomorphism
resulting from the addition of a second component, such as water or another solvent, is
described as “lyotropic.” Compounds that have the potential to form lyotropic mesophases
are described as philic” and include molecules which possess a polar ionic moiety
(e. g., a+, —COO'K+, —SO3‘Na+) or polar non—ionic moiety (such as —N‘N+(CH3)3). See,
e. g., N. H. Hartshome and A. Stuart, Crystals and the zing Microscope (4th ed, 1970).
Each compound of Formula 1 may exist as polymorphs, stereoisomers, tautomers,
or some combination thereof, may be isotopically-labeled, may result from the administration
of a prodrug, or form a metabolite following administration.
“Prodrugs” refer to compounds having little or no pharmacological activity that can,
when metabolized in vivo, undergo conversion to compounds having desired pharmacological
activity. Prodrugs may be prepared by replacing appropriate onalities present in
pharmacologically active compounds with “pro-moieties” as described, for e, in
H. Bundgaar, Design ofProdrugs (1985). Examples of prodrugs include ester, ether or amide
derivatives of compounds of Formula 1 having carboxylic acid, hydroxy, or amino functional
groups, respectively. For further discussions of prodrugs, see e. g., T. Higuchi and V. Stella
“Pro—drugs as Novel Delivery Systems,” ACS Symposium Series 14 (1975) and E. B. Roche
ed., Bioreversible Carriers in Drug Design .
“Metabolites” refer to compounds formed in vivo upon administration of
pharmacologically active compounds. Examples e hydroxymethyl, hydroxy, secondary
amino, primary amino, phenol, and carboxylic acid derivatives of compounds of Formula 1
having methyl, alkoxy, tertiary amino, secondary amino, phenyl, and amide groups,
respectively.
Compounds of Formula 1 may exist as stereoisomers that result from the ce
of one or more stereogenic centers, one or more double bonds, or both. The stereoisomers
may be pure, substantially pure, or mixtures. Such isomers may also result from acid
addition or base salts in which the counter-ion is optically active, for example, when the
counter-ion is D-lactate or L-lysine.
Compounds of Formula 1 may exist as ers, which are isomers resulting from
tautomerization. Examples of tautomeric isomerism include enamine, keto-enol,
oxime-nitroso, and amide-imidic acid tautomerism. The lone moiety of Formula 1 may
exist, for example, in the following tautomeric forms:
N’N N’NH N’NH HN’NH HN’N
a/ILHVOH E/lfto EAN>=0 “at/KNyOH
Compounds of Formula 1 may exhibit more than one type of isomerism.
Geometrical rans) isomers may be ted by conventional techniques such
as chromatography and fractional crystallization.
tional techniques for preparing or isolating a compound having a specific
stereochemical configuration include chiral synthesis from a suitable optically pure precursor
or resolution of the racemate (or the racemate of a salt or derivative) using, for example,
chiral high pressure liquid chromatography (HPLC). Alternatively, the racemate (or a
racemic precursor) may be reacted with a suitable optically active compound, for example, an
alcohol, or, in the case where the compound of Formula 1 contains an acidic or basic moiety,
an acid or base such as tartaric acid or l-phenylethylamine. The ing diastereomeric
mixture may be separated by chromatography, fractional crystallization, etc., and the
appropriate diastereoisomer ted to the compound having the requisite chemical
configuration. For a further discussion of techniques for separating isomers, see
E. L. Eliel and S. H. Wilen, Stereochemistry ofOrganic Compounds (1994).
Compounds of Formula 1 may s isotopic variations, in which at least one
atom is replaced by an atom having the same atomic number, but an atomic mass different
from the atomic mass usually found in nature. Isotopes suitable for inclusion in compounds
of Formula 3
1 include, for example, isotopes of hydrogen, such as 2H and H; isotopes of
carbon, such asllC, 13 C and 14C; isotopes of en, such as13N and 15N; isotopes of oxygen,
such as 15O, 17O and 18O; es of sulfur, such as 35$; isotopes of fluorine, such as 18F;
isotopes of chlorine, such as 36Cl, and isotopes of iodine, such as 123I and 1251. Use of isotopic
variations (e. g., deuterium, 2H) may afford certain therapeutic advantages resulting from
greater lic stability, for example, increased in viva half—life or reduced dosage
requirements. Additionally, certain isotopic variations of the disclosed compounds may
incorporate a ctive isotope (e. g., m, 3H, or 14C), which may be useful in drug
and/or substrate tissue bution s. Substitution with positron emitting isotopes, such
as 11C, 18F, 15O and 13N, may be useful in Positron Emission Topography (PET) s for
examining substrate receptor occupancy. Isotopically—labeled compounds may be prepared by
processes analogous to those described elsewhere in the disclosure using an appropriate
isotopically-labeled reagent in place of a non-labeled reagent.
The compounds of Formula 1 may be prepared using the techniques described
below. Some of the schemes and examples may omit details of common reactions, including
oxidations, reductions, and so on, separation techniques (extraction, evaporation,
precipitation, chromatography, filtration, trituration, crystallization, and the like), and
analytical procedures, which are known to persons of ordinary skill in the art of organic
chemistry. The details of such ons and techniques can be found in a number of treatises,
including Richard Larock, Comprehensive Organic Transformations (1999), and the multi—
volume series edited by Michael B. Smith and others, Compendium ofOrganic Synthetic
Methods (1974 et seq.). Starting materials and ts may be obtained from commercial
sources or may be prepared using literature methods. Some of the reaction schemes may omit
minor products resulting from chemical transformations (e.g., an alcohol from the hydrolysis
of an ester, C02 from the decarboxylation of a di-acid, etc.). In addition, in some instances,
reaction ediates may be used in subsequent steps without isolation or purification (i.e.,
in situ).
In some of the reaction schemes and examples below, certain compounds may be
prepared using protecting groups, which prevent undesirable chemical reaction at otherwise
reactive sites. Protecting groups may also be used to enhance solubility or otherwise modify
physical properties of a compound. For a discussion of protecting group strategies, a
description of materials and methods for installing and removing protecting groups, and a
compilation of useful protecting groups for common functional groups, including amines,
carboxylic acids, alcohols, ketones, aldehydes, and so on, see T. W. Greene and P. G. Wuts,
Protecting Groups in Organic Chemistry (1999) and P. Kocienski, Protective Groups .
lly, the chemical ormations described throughout the specification may
be carried out using substantially stoichiometric amounts of reactants, though certain
reactions may t from using an excess of one or more of the reactants. onally,
many of the reactions disclosed throughout the specification may be carried out at about room
temperature (RT) and t pressure, but depending on on kinetics, yields, and so on,
some reactions may be run at elevated pressures or employ higher temperatures (e.g., reflux
conditions) or lower temperatures (e. g., —78°C to 0°C). Any reference in the disclosure to a
stoichiometric range, a temperature range, a pH range, etc., whether or not sly using
the word “range,” also includes the indicated endpoints.
Many of the chemical transformations may also employ one or more compatible
solvents, which may ce the reaction rate and yield. Depending on the nature of the
reactants, the one or more solvents may be polar protic solvents (including water), polar
aprotic ts, non—polar solvents, or some combination. Representative solvents include
saturated aliphatic hydrocarbons (e. g., n-pentane, n-hexane, n-heptane, n-octane); aromatic
arbons (e. g., e, toluene, s); halogenated hydrocarbons (e.g., ene
chloride, chloroform, carbon tetrachloride); aliphatic alcohols (e. g., methanol, ethanol,
propan-l-ol, propanol, butanol, yl-propanol, butan-2—ol, 2—methyl-propan
01, pentan-l-ol, 3-methyl-butan-l-ol, hexan-l-ol, 2—methoxy-ethanol, 2-ethoxy-ethanol, 2-
butoxy-ethanol, ethoxy-ethoxy)-ethanol, 2-(2-ethoxy-ethoxy)-ethanol, 2-(2-butoxy-
ethoxy)-ethanol); ethers (e. g., l ether, di-isopropyl ether, l ether, l,2—dimethoxy-
ethane, 1,2-diethoxy-ethane, l-methoxy-2—(2—methoxy-ethoxy)—ethane, l-ethoxy(2-ethoxy-
ethoxy)-ethane, tetrahydrofuran, l,4-dioxane); ketones (e.g., acetone, methyl ethyl ketone);
esters (methyl acetate, ethyl acetate); nitrogen-containing solvents (e. g., formamide, N,N—
dimethylformamide, itrile, N—methyl-pyrrolidone, pyridine, quinoline, nitrobenzene);
sulfur—containing solvents (e. g., carbon disulfide, dimethyl sulfoxide, tetrahydro-thiophenel
oxide); and phosphorus-containing solvents (e. g., hexamethylphosphoric triamide).
In the schemes, below, substituent fiers (e. g., R1, R2, R3, etc.) are as defined
above for Formula 1. As mentioned earlier, however, some of the starting materials and
intermediates may include protecting groups, which are d prior to the final product. In
such cases, the substituent identifier refers to moieties defined in Formula 1 and to those
moieties with appropriate protecting . For example, a starting material or intermediate
in the schemes may include a substituent identifier that is a moiety having a potentially
reactive amine. In such cases, the substituent fier would include the moiety with or
without, say, a Boc or Cbz group attached to the amine.
Schemes A and B depict l methods for preparing compounds of Formula 1 in
which L is —O- or —N(R4e)-. As shown in Scheme A, a dihalopyridine derivative (Al) is
reacted with an alcohol (A2) or an amine (A3) in the presence of a nonnucleophilic or
inorganic base (e.g., NaH, Et3N, CszCO3, etc.). In Formula Al, X is halo (typically C1 or Br),
and in Formula A2 and A3, PG is an amine protective group, such as Boc. The reaction is
carried out in a compatible solvent (e. g., NMP, DMF, THF, etc.) and at a temperature which
may range from RT to about 140°C. The resulting intermediate (A4, in which L1 is —O- or
-N(R4e)-) is reacted with zinc cyanide in the presence of a palladium catalyst (e. g., Pd(PPh3)4)
and solvent (e.g., DMF, DMA, etc.) and at elevated temperature (e.g., about 150—1650C). The
resulting nitrile (A5) is combined with ethyl hydrazinecarboxylate in a compatible solvent
(e. g., NMP) and is heated (e. g., at about 175°C) to give a lone intermediate (A6).
Subsequent l of the amine protective group (e. g., via treatment with an acid when PG
is Boc) and reaction with an acyl chloride (A7) in the presence of a nonnucleophilic base
(e. g., 2,6—dimethylpyridine) and a compatible solvent (e. g., DCM, NMP, DMSO, etc.) give
the d compound of Formula 1A.
HO R4d
R4IN/R4b
PG or
R4eN R4d
R1 R1
40I , R41) N
R 2 /
EG R X R2 /
R1 \ \
2 I I
R X /N /N
|\ A3 R3 Zn(CN)2 R3
/ N Lil?“ Pd L1 R4d
R3 Base
X [R413
R40 N R4: l?‘ ,R4b
PG PG
A1 A4 A5
H3CAOJLN’NH2 Heat
R1 N’Nl'I 1)Deprotect R1 N’NH
2) R2 0
\ N
l H A \ N
R a CI
/N | H
R3 N
‘—A7 R3 /
LIR1 4d
Base L1 R4d
,R4b
R40 N I
R40 N’R4b
CARL?! PG
1A A6
SchemeA
Scheme B provides an alternative method for ling the triazolone . As in
Scheme A, a dihalopyridine tive (Al) is reacted with an alcohol (A2) or an amine (A3)
in the presence of a nonnucleophilic or inorganic base, and the resulting intermediate (A4) is
reacted with zinc cyanide in the presence of a palladium catalyst and solvent. In contrast to
Scheme A, the resulting nitrile (A5) is combined with hydrazine hydrate in a compatible
solvent (e.g., MeOH) and is heated at elevated temperature (e.g., reflux) to give a
picolinimidohydrazide intermediate (B1). The picolinimidohydrazide derivative (B1) is
subsequently reacted with l, l ’-carbonyldiimidazole (CD1) in a ible solvent (e.g.,
dioxane) and at elevated temperature (e.g., reflux) to give a triazolone intermediate (A6). As
in Scheme A, the protective group (PG) is removed and the resulting amine (not shown) is
2014/022801
reacted with an acyl chloride (A7) in the presence of a nonnucleophilic base and a compatible
solvent to give the desired compound of Formula 1A.
HO R4d
R4IN’R4b
PG Or
R4eN R4d
I R1 R1
40 ’ R4b 2 2 /
R R X R /
R1 EIG \ \
I I
X ’N ’N
\ A3 R3 Zn<CN)2 R3
/N Base L1 R4d Pd L1 R4d
X R4CIN/R4b R4CIN’R4b
PG PG
A1 A4 A5
HzN—NH2_H20 l Heat
R1 N’NH O
1)Deprotect R1 N’NH R1 NH
R2 0 O ’
\ IN 2) R2 >§0
1L (\N/(N R2 ,NHZ
\ N a \ \
| N
H R4a CI
/N | H \ | H
R3 /N N N
A7 R3 R3 /
“IR“ Base L1 R4d L1 R4“
N’R4b R4b
R4C N R46 R4C ”1’
0%R4a PG PG
1A A6 B1
SchemeB
Scheme C depicts a general method for preparing compounds of a 1 in which
L is —CH20—. As shown in Scheme C, a picolinic acid derivative (Cl) is reacted with
methanol and sulfuric acid at elevated temperature (e.g., about 65°C). The ing methyl
picolinate derivative (C2) is activated via treatment with m-chloroperoxybenzoic acid in a
compatible solvent (e.g., DCM) to give and N—oxide intermediate (C3) which is subsequently
reacted with phosphoryl oride at elevated temperature (e.g., about . The resulting
methyl 6-chloropicolinate tive (C4) is treated with sodium borohydride and methanol
to give a (6-chloropyridinyl)methanol derivative (C5) which is reacted with zinc cyanide
in the presence of a palladium catalyst (e. g. Pd2(dba)3), an optional ligand (e.g., XPhos) and
solvent (e.g., DMF, DMA, etc.) at elevated temperature (e.g., about ISO—165°C). The
resulting 6-(hydroxymethyl)picolinonitrile derivative (C6) is d with tribromophosphine
in a compatible solvent (e.g., THF) to give a brominated intermediate (C7) which is reacted
with an alcohol (A2) in the presence of a base to give a e (C8) in which L2 is —CH20—.
As in Scheme A, the nitrile (C8) is combined with ethyl hydrazinecarboxylate in a
compatible t and is heated to give a triazolone intermediate (C9). Subsequent removal
of the amine protective group and reaction with an acyl chloride (A7) in the presence of a
nonnucleophilic base and a compatible solvent gives the desired compound of Formula 1B.
R1 R1 R1 R1
R2 CH30H R2 R2 R2 CI
| H2804 \ POCIs \
| mCPBA | \+ I
/N /N /N\ — /N
R3 R3 R3 o R3
,CH3 ,CH3 ,CH3
0 OH 0 o o o o o
C1 C2 03 C4
NaBH
HO R4d 4
R1 I 4b
/N ,R
R2 / R4C
\ I}! R1 R1 R1
I PG N N
2 / /
R2 R2 CI
/N R / /
R3 \ \ \
A2 PBr Zn(CN) ‘— | .—3 I 2 |
L2 R4d Base R3 / N /N /N
R3 pd R3
08 C7 C6 05
HgCAOJLN’NHZ
Heat
R1 N’NH 1)Deprotect R1 N’NH
R2 I #0 2) O R2 I O
\ N ll\ \ N
| H
H R4a CI |
/N N /
R3 A7 R3
L2 R401 L2 R4d
I Base
I ,R4b
R4c N’R‘u’ R4C N
PG 0%R4a
C9 1B
SchemeC
The methods depicted in Schemes A, B, and C may be varied as desired. For
example, additional protecting groups may be added or removed at various steps in the
. The intermediates may be further elaborated via, for example, alkylation, acylation,
hydrolysis, oxidation, reduction, ion, sulfonation, alkynation, and the like to give the
desired final product. Furthermore, any racemic intermediate may be optionally purified by
chiral column chromatography (e.g., supercritical fluid tography) or by derivatization
with optically—pure reagents as described above, to give a d stereoisomer.
Compounds of Formula 1, which include compounds named in the examples, and
their pharmaceutically acceptable xes, salts, solvates and hydrates, should be assessed
for their biopharmaceutical properties, such as solubility and solution stability across pH,
permeability, and the like, to select an appropriate dosage form and route of administration.
Compounds that are intended for pharmaceutical use may be administered as crystalline or
amorphous products, and may be obtained, for example, as solid plugs, s, or films by
methods such as precipitation, crystallization, freeze drying, spray , evaporative
drying, microwave drying, or radio frequency drying.
Compounds of Formula 1 may be administered alone or in combination with one
another or with one or more pharmacologically active nds which are ent than
the nds of Formula 1. Generally, one or more these compounds are administered as a
pharmaceutical composition (a formulation) in association with one or more pharmaceutically
acceptable ents. The choice of excipients depends on the particular mode of
administration, the effect of the ent on solubility and stability, and the nature of the
dosage form, among other things. Useful pharmaceutical compositions and methods for their
preparation may be found, for example, in A. R. Gennaro (ed.), ton: The Science and
Practice ofPharmacy (20th ed., 2000).
nds of Formula 1 may be administered orally. Oral administration may
involve swallowing in which case the nd enters the bloodstream via the
gastrointestinal tract. Alternatively or additionally, oral administration may involve mucosal
administration (e. g., buccal, sublingual, supralingual administration) such that the compound
enters the bloodstream through the oral mucosa.
Formulations le for oral administration include solid, semi-solid and liquid
systems such as tablets; soft or hard capsules containing multi- or nano-particulates, liquids,
or powders; lozenges which may be liquid—filled; chews; gels; fast dispersing dosage forms;
films; ovules; sprays; and buccal or mucoadhesive patches. Liquid formulations include
suspensions, solutions, syrups and elixirs. Such formulations may be employed as fillers in
soft or hard capsules (made, e.g., from gelatin or hydroxypropylmethylcellulose) and
typically comprise a carrier (e. g., water, ethanol, polyethylene , ene glycol,
methylcellulose, or a suitable oil) and one or more emulsifying , suspending agents or
both. Liquid formulations may also be prepared by the reconstitution of a solid (e. g., from a
sachet).
Compounds of Formula 1 may also be used in fast—dissolving, fast—disintegrating
dosage forms such as those described in Liang and Chen, Expert Opinion in Therapeutic
Patents (2001) ll(6):981—986.
For tablet dosage forms, depending on dose, the active pharmaceutical ingredient
(API) may comprise from about 1 vvt% to about 80 vvt% of the dosage form or more typically
from about 5 wt% to about 60 wt% of the dosage form. In addition to the API, tablets may
include one or more disintegrants, s, diluents, tants, glidants, lubricants, anti-
oxidants, nts, flavoring agents, preservatives, and taste-masking agents. Examples of
disintegrants include sodium starch glycolate, sodium carboxymethyl cellulose, m
carboxymethyl cellulose, croscarmellose sodium, crospovidone, polyvinylpyrrolidone,
methyl cellulose, microcrystalline cellulose, C1_6 alkyl—substituted hydroxypropylcellulose,
starch, pregelatinized starch, and sodium alginate. Generally, the disintegrant will comprise
from about 1 wt% to about 25 wt% or from about 5 wt% to about 20 wt% of the dosage form.
Binders are generally used to impart cohesive qualities to a tablet formulation.
Suitable binders include microcrystalline cellulose, n, sugars, polyethylene glycol,
natural and synthetic gums, polyvinylpyrrolidone, pregelatinized starch,
hydroxypropylcellulose and hydroxypropylmethylcellulose. Tablets may also contain
ts, such as lactose (monohydrate, spray—dried monohydrate, anhydrous), mannitol,
xylitol, dextrose, e, ol, rystalline cellulose, starch and dibasic calcium
phosphate dihydrate.
Tablets may also include surface active agents, such as sodium lauryl sulfate and
polysorbate 80, and glidants such as silicon dioxide and talc. When present, surface active
agents may comprise from about 0.2 vvt% to about 5 vvt% of the tablet, and glidants may
comprise from about 0.2 wt% to about 1 wt% of the tablet.
Tablets may also contain lubricants such as magnesium stearate, calcium stearate,
zinc stearate, sodium l fumarate, and mixtures of magnesium stearate with sodium
lauryl sulfate. Lubricants may comprise from about 0.25 wt% to about 10 wt% or from about
0.5 wt% to about 3 wt% of the tablet.
Tablet blends may be compressed ly or by roller compaction to form tablets.
Tablet blends or portions of blends may alternatively be wet-, dry-, or melt-granulated, melt
congealed, or extruded before ing. If desired, prior to blending one or more of the
components may be sized by screening or milling or both. The final dosage form may
comprise one or more layers and may be coated, uncoated, or ulated. Exemplary
tablets may contain up to about 80 wt% of API, from about 10 wt% to about 90 wt% of
binder, from about 0 wt% to about 85 wt% of diluent, from about 2 wt% to about 10 wt% of
disintegrant, and from about 0.25 wt% to about 10 wt% of lubricant. For a discussion of
blending, granulation, milling, screening, ing, coating, as well as a description of
alternative techniques for preparing drug products, see A. R. Gennaro (ed.), Remington: The
Science and Practice ofPharmacy (20th ed., 2000); H. A. Lieberman et al. (ed.),
Pharmaceutical Dosage Forms: Tablets, Vol. 1-3 (2d ed., 1990); and D. K. Parikh &
C. K. Parikh, Handbook ofPharmaceutical Granulation Technology, Vol. 81 (1997).
Consumable oral films for human or veterinary use are e water-soluble or
swellable thin film dosage forms which may be rapidly dissolving or mucoadhesive. In
addition to the API, a typical film includes one or more rming polymers, binders,
solvents, ants, cizers, stabilizers or emulsifiers, viscosity-modifying agents, and
solvents. Other film ients may include anti-oxidants, colorants, nts and flavor
enhancers, preservatives, salivary stimulating agents, cooling agents, co-solvents (including
oils), emollients, bulking agents, anti-foaming agents, surfactants, and taste-masking agents.
Some components of the formulation may perform more than one function.
In addition to dosing requirements, the amount of API in the film may depend on its
solubility. If water soluble, the API would lly comprise from about 1 wt% to about
80 wt% of the non—solvent components (solutes) in the film or from about 20 wt% to about
50 wt% of the solutes in the film. A less soluble API may comprise a greater proportion of
the composition, lly up to about 88 wt% of the non-solvent components in the film.
The film-forming polymer may be selected from natural polysaccharides, proteins,
or synthetic hydrocolloids and typically comprises from about 0.01 wt% to about 99 wt% or
from about 30 wt% to about 80wt% of the film.
Film dosage forms are typically prepared by evaporative drying of thin aqueous
films coated onto a peelable backing support or paper, which may carried out in a drying
oven or tunnel (e.g., in a combined coating-drying apparatus), in lization equipment, or
in a vacuum oven.
Useful solid formulations for oral administration may include immediate release
formulations and modified release formulations. Modified release formulations include
delayed—, sustained—, pulsed—, controlled—, targeted—, and programmed—release. For a general
ption of suitable modified e formulations, see US Patent No. 6,106,864. For
details of other useful release technologies, such as high energy dispersions and c and
coated particles, see Verma et al, Pharmaceutical Technology On-Zine (2001) 25(2): 1—14.
Compounds of Formula 1 may also be administered directly into the blood stream,
muscle, or an internal organ of the subject. Suitable techniques for parenteral administration
include intravenous, intraarterial, intraperitoneal, intrathecal, entricular, intraurethral,
intrastemal, intracranial, intramuscular, intrasynovial, and subcutaneous administration.
Suitable devices for parenteral administration include needle injectors, including microneedle
ors, needle—free injectors, and infusion devices.
Parenteral ations are lly aqueous solutions which may contain
excipients such as salts, carbohydrates and buffering agents (e.g., pH of from about 3 to about
9). For some ations, however, compounds of Formula 1 may be more suitably
formulated as a sterile non—aqueous solution or as a dried form to be used in conjunction with
a suitable vehicle such as sterile, pyrogen-free water. The preparation of parenteral
formulations under sterile conditions (e. g., by lyophilization) may be readily accomplished
using standard pharmaceutical ques.
The solubility of compounds which are used in the preparation of parenteral
solutions may be increased through riate formulation techniques, such as the
incorporation of solubility-enhancing . Formulations for parenteral administration may
be formulated to be immediate or modified release. Modified release formulations include
delayed, sustained, pulsed, controlled, targeted, and programmed release. Thus, compounds
of Formula 1 may be formulated as a suspension, a solid, a olid, or a thixotropic liquid
for administration as an ted depot providing modified e of the active nd.
Examples of such formulations include drug—coated stents and semi—solids and suspensions
comprising drug—loaded poly(DL—lactic—coglycolic)acid (PGLA) microspheres.
Compounds of Formula 1 may also be administered topically, intradermally, or
transdermally to the skin or mucosa. Typical formulations for this purpose include gels,
hydrogels, lotions, solutions, , ointments, dusting powders, dressings, foams, films,
skin patches, wafers, implants, sponges, f1bers, bandages and microemulsions. Liposomes
may also be used. Typical carriers may e alcohol, water, mineral oil, liquid petrolatum,
white petrolatum, glycerin, polyethylene glycol and propylene glycol. Topical formulations
may also include penetration enhancers. See, e.g., Finnin and Morgan, J. Pharm. Sci.
88(10):955—958 (1999).
Other means of topical administration include delivery by oporation,
iontophoresis, phonophoresis, sonophoresis and eedle or needle—free (e. g.
Powderj ectTM and Bioj ectTM) injection. ations for topical stration may be
formulated to be immediate or modified release as bed above.
Compounds of Formula 1 may also be administered intranasally or by inhalation,
typically in the form of a dry powder, an l spray, or nasal drops. An inhaler may be
used to administer the dry , which comprises the API alone, a powder blend of the
API and a diluent, such as lactose, or a mixed component le that includes the API and a
phospholipid, such as phosphatidylcholine. For intranasal use, the powder may include a
bioadhesive agent, e. g., chitosan or cyclodextrin. A pressurized ner, pump, sprayer,
atomizer, or nebulizer, may be used to te the aerosol spray from a solution or
suspension comprising the API, one or more agents for dispersing, solubilizing, or extending
the release of the API (e. g., EtOH with or without water), one or more solvents (e. g., l,l,l,2-
tetrafluoroethane or l,l,l,2,3,3,3-heptafluoropropane) which serve as a propellant, and an
optional surfactant, such as sorbitan trioleate, oleic acid, or an actic acid. An atomizer
using ohydrodynamics may be used to produce a fine mist.
Prior to use in a dry powder or suspension formulation, the drug product is usually
comminuted to a particle size suitable for delivery by inhalation ally 90% of the
particles, based on volume, having a t dimension less than 5 s). This may be
achieved by any appropriate size reduction method, such as spiral jet milling, fluid bed jet
milling, supercritical fluid processing, high pressure homogenization, or spray drying.
Capsules, blisters and cartridges (made, for example, from gelatin or
hydroxypropylmethyl cellulose) for use in an inhaler or insufflator may be formulated to
contain a powder mixture of the active compound, a suitable powder base such as lactose or
starch, and a performance modifier such as L-leucine, mannitol, or magnesium stearate. The
lactose may be anhydrous or monohydrated. Other suitable excipients include dextran,
glucose, maltose, ol, xylitol, fructose, sucrose, and trehalose.
A suitable solution formulation for use in an atomizer using electrohydrodynamics
to produce a fine mist may contain from about 1 ug to about 20 mg of the API per actuation
and the actuation volume may vary from about 1 uL to about 100 uL. A typical formulation
2014/022801
may comprise one or more compounds of Formula 1, propylene glycol, sterile water, EtOH,
and NaCl. Alternative solvents, which may be used instead of propylene glycol, include
glycerol and polyethylene glycol.
Formulations for d administration, asal administration, or both, may be
formulated to be ate or modified release using, for example, PGLA. Suitable flavors,
such as menthol and levomenthol, or ners, such as saccharin or sodium saccharin, may
be added to formulations intended for inhaled/intranasal administration.
In the case of dry powder inhalers and aerosols, the dosage unit is determined by
means of a valve that delivers a d amount. Units are typically arranged to administer a
metered dose or “puff’ containing from about 10 ug to about 1000 pg of the API. The overall
daily dose will typically range from about 100 ug to about 10 mg which may be administered
in a single dose or, more usually, as d doses throughout the day.
The active compounds may be administered rectally or vaginally, e.g., in the form
of a suppository, y, or enema. Cocoa butter is a traditional suppository base, but
various alternatives may be used as appropriate. Formulations for rectal or vaginal
administration may be formulated to be immediate or ed release as described above.
Compounds of Formula 1 may also be administered ly to the eye or ear,
typically in the form of drops of a ized suspension or solution in isotonic, pH—adjusted,
sterile saline. Other formulations suitable for ocular and aural administration e
ointments, gels, biodegradable implants (e. g. absorbable gel sponges, collagen), non—
biodegradable implants (e. g. silicone), wafers, lenses, and particulate or vesicular systems,
such as niosomes or liposomes. The formulation may include one or more rs and a
preservative, such as benzalkonium chloride. l polymers include crossed—linked
polyacrylic acid, polyvinylalcohol, onic acid, cellulosic polymers (e. g.,
hydroxypropylmethylcellulose, hydroxyethylcellulose, methyl cellulose), and
polysaccharide polymers (e. g., gelan gum). Such formulations may also be delivered
by iontophoresis. Formulations for ocular or aural administration may be formulated to be
immediate or modified release as described above.
To improve their solubility, dissolution rate, taste-masking, bioavailability, or
stability, compounds of Formula 1 may be combined with soluble macromolecular entities,
including cyclodextrin and its derivatives and polyethylene glycol-containing polymers. For
example, API—cyclodextrin complexes are generally useful for most dosage forms and routes
of administration. Both inclusion and non—inclusion complexes may be used. As an
alternative to direct complexation with the API, the cyclodextrin may be used as an auxiliary
additive, i.e. as a carrier, diluent, or solubilizer. Alpha-, beta- and gamma-cyclodextrins are
commonly used for these purposes. See, e.g., WO 72, WO 94/02518, and
WO 98/55148.
As noted above, one or more compounds of a 1, including compounds
specifically named in the es, and their ceutically active complexes, salts,
solvates and hydrates, may be combined with each other or with one or more other active
pharmaceutically active compounds to treat various diseases, disorders or conditions. In such
cases, the active compounds may be combined in a single dosage form as described above or
may be provided in the form of a kit which is suitable for coadministration of the
compositions. The kit comprises (1) two or more ent pharmaceutical compositions, at
least one of which contains a compound of Formula 1; and (2) a device for tely
retaining the two pharmaceutical compositions, such as a divided bottle or a divided foil
packet. An example of such a kit is the familiar blister pack used for the packaging of tablets
or capsules. The kit is suitable for administering different types of dosage forms (e.g., oral
and parenteral) or for administering different pharmaceutical itions at separate dosing
als, or for titrating the ent pharmaceutical compositions against one another. To
assist with patient compliance, the kit typically comprises directions for stration and
may be provided with a memory aid.
For administration to human patients, the total daily dose of the claimed and
disclosed compounds is typically in the range of about 0.1 mg to about 3000 mg depending
on the route of administration. For example, oral administration may require a total daily dose
of from about 1 mg to about 3000 mg, while an intravenous dose may only e a total
daily dose of from about 0.1 mg to about 300 mg. The total daily dose may be administered
in single or divided doses and, at the physician’s discretion, may fall outside of the typical
ranges given above. Although these dosages are based on an average human subject having a
mass of about 60 kg to about 70 kg, the physician will be able to determine the riate
dose for a patient (e. g., an infant) whose mass falls outside of this weight range.
As noted above, the compounds of Formula 1 may be used to treat diseases,
ers or conditions for which inhibition of BTK is indicated. Such diseases, disorders or
conditions generally relate to any unhealthy or abnormal state in a subject for which the
inhibition of BTK provides a therapeutic benefit. More particularly, such diseases, disorders
or conditions may involve the immune system and inflammation, including Type I
hypersensitivity (allergic) reactions (allergic rhinitis, allergic asthma, and atopic dermatitis);
autoimmune diseases (rheumatoid arthritis, multiple sclerosis, systemic lupus erythematosus,
psoriasis, lupus nephritis, immune ocytopenic purpura, Sjogren’s syndrome,
ankylosing spondylitis, and Behcet’s disease); inflammatory bowel e; inflammation of
the lung (chronic obstructive pulmonary disease), atherosclerosis, thrombosis, and
myocardial infarction. The compounds of Formula 1 may also be used to treat diseases,
disorders or conditions related to abnormal cell growth, including hematological
malignancies, such as acute myeloid leukemia, B-cell chronic lymphocytic leukemia, B-cell
lymphoma (e. g., mantle cell lymphoma), T-cell lymphoma (e.g., eral T-cell
lymphoma), and multiple myeloma, as well as lial cancers (i.e., carcinomas), such as
lung cancer (small cell lung cancer and non-small cell lung ), pancreatic cancer, and
colon cancer.
In addition to the hematological malignancies and epithelial cancers noted above,
the compounds of a 1 may also be used to treat other types of cancer, including
leukemia (chronic myelogenous ia and chronic lymphocytic leukemia); breast cancer,
genitourinary , skin cancer, bone cancer, prostate cancer, and liver cancer; brain
cancer; cancer of the larynx, gall bladder, rectum, parathyroid, d, adrenal, neural tissue,
bladder, head, neck, stomach, bronchi, and kidneys; basal cell carcinoma, squamous cell
carcinoma, metastatic skin carcinoma, osteosarcoma, Ewing’s a, veticulum cell
a, and Kaposi’s sarcoma; myeloma, giant cell tumor, islet cell tumor, acute and
chronic lymphocytic and granulocytic tumors, hairy-cell tumor, adenoma, medullary
carcinoma, pheochromocytoma, mucosal neuromas, intestinal oneuromas, hyperplastic
corneal nerve tumor, marfanoid habitus tumor, Wilms’ tumor, seminoma, ovarian tumor,
leiomyomater tumor, cervical dysplasia, neuroblastoma, retinoblastoma, myelodysplastic
syndrome, myosarcoma, ytoma, dgkin’s lymphoma, malignant
hypercalcemia, polycythermia vera, adenocarcinoma, glioblastoma multiforma, glioma,
lymphomas, and malignant melanomas, among others.
In addition to cancer, the compounds of Formula 1 may also be used to treat other
diseases, disorders or conditions related to abnormal cell growth, including non—malignant
proliferative diseases such as benign prostatic hypertrophy, osis, hyperplasia, synovial
proliferation disorder, idiopathic plasmacytic denopathy, retinopathy or other
neovascular disorders of the eye, among others.
The compounds of Formula 1 may also be used to treat autoimmune es,
disorders or conditions in addition to those listed above. Such diseases, disorders or
conditions include Crohns e, dermatomyositis, diabetes mellitus type 1, Goodpasture’s
syndrome, ’ disease, Guillain—Barré syndrome, Hashimoto’s e, mixed connective
tissue damage, enia gravis, narcolepsy, pemphigus vulgaris, pernicious anemia,
polymyositis, y biliary cirrhosis, temporal arteritis, ulcerative colitis, vasculitis, and
Wegener’s granulomatosis, among .
The compounds of Formula 1 may be used to treat inflammatory diseases, disorders
or conditions including asthma, chronic inflammation, chronic prostatitis, glomerulonephritis,
hypersensitivities, inflammatory bowel diseases (ulcerative colitis in addition to Crohn’s
disease), pelvic inflammatory disease, reperfusion injury, transplant rejection, vasculitis, and
systemic inflammatory se me.
The compounds of Formula 1 may also be used to treat specific diseases or
conditions that may fall within one or more general disorders described above, including
arthritis. In addition to rheumatoid arthritis, Sjogren’s syndrome, systemic lupus
matosus, SLE in children and adolescents, compounds of Formula 1 may also be used
to treat other arthritis diseases, including ankylosing spondylitis, lar necrosis, Behcet’s
disease, bursitis, calcium osphate dihyrate l deposition disease (pseudo gout),
carpal tunnel syndrome, Ehlers-Danlos syndrome, flbromyalgia, Fifth disease, giant cell
arteritis, gout, juvenile dermatomyositis, juvenile rheumatoid arthritis, juvenile
spondyloarthopathy, Lyme disease, Marfan syndrome, myositis, osteoarthritis, osteogenesis
imperfect, osteoporosis, Paget’s disease, psoriatic arthritis, Raynaud’s phenomenon, reactive
arthritis, reflex sympathetic dystrophy me, scleroderma, spinal stenosis, s e,
and tendinitis, among others.
The claimed and disclosed compounds may be combined with one or more other
pharmacologically active compounds or therapies for the treatment of one or more diseases,
disorders or conditions for which BTK is indicated, including those involving the immune
system, inflammation, and abnormal cell . For example, compounds of Formula 1,
which include compounds speciflcally named in the examples, and their pharmaceutically
acceptable complexes, salts, solvates and hydrates, may be stered simultaneously,
sequentially or separately in combination with one or more compounds or therapies for
treating arthritis, including rheumatoid arthritis and rthritis, or for treating cancer,
including hematological malignancies, such as acute myeloid leukemia, B-cell chronic
cytic leukemia, B-cell lymphoma, T-cell lymphoma, multiple myeloma, and
carcinomas, such as lung cancer, pancreatic cancer, and colon cancer. Such combinations
may offer significant therapeutic advantages, including fewer side s, improved ability to
treat underserved patient populations, or synergistic activity.
For example, when used to treat arthritis, the compounds of a 1 may be
combined with one or more nonsteroidal anti-inflammatory drugs s), analgesics,
corticosteroids, biological se modifiers, and protein—A immunoadsorption therapy.
Alternatively or additionally, when treating rheumatoid arthritis, the compounds of Formula 1
may be combined with one or more disease modifying antirheumatic drugs (DMARDs), and
when treating osteoarthritis, the nds of Formula 1 may be combined with one or more
osteoporosis .
Representative NSAIDs include apazone, aspirin, celecoxib, diclofenac (with and
without misoprostol), diflunisal, etodolac, fenoprofen, flurbiprofen, ibuprofen, indomethacin,
ketoprofen, meclofenamate sodium, mefenamic acid, meloxicam, nabumetone, naproxen,
oxaprozin, phenylbutazone, piroxicam, choline and magnesium salicylates, salsalate, and
sulindac. entative analgesics include acetaminophen and morphine sulfate, as well as
codeine, hydrocodone, oxycodone, propoxyphene, and tramadol, all with or t
acetaminophen. Representative corticosteroids include thasone, cortisone acetate,
dexamethasone, hydrocortisone, methylprednisolone, prednisolone, and prednisone.
Representative biological response modifiers include TNF—(x inhibitors, such as adalimumab,
etanercept, and infliximab; selective B-cell inhibitors, such as rituximab; IL-l inhibitors, such
as anakinra, and selective costimulation modulators, such as abatacept.
Representative DMARDs include auranofin (oral gold), azathioprine, chlorambucil,
cyclophosamide, cyclosporine, gold sodium late table gold),
hydroxychloroquine, leflunomide, methotrexate, cline, myophenolate l,
penicillamine, sulfasalazine, and JAK3 tor (e. g., tofacitinib). Representative
orosis agents include sphonates, such as alendronate, ibandronate, risedronate,
and zoledronic acid; ive estrogen receptor modulators, such as droloxifene,
lasofoxifene, and raloxifene; hormones, such as calcitonin, ens, and parathyroid
hormone; and immunosuppressant agents such as azathioprine, cyclosporine, and rapamycin.
Particularly useful combinations for treating rheumatoid arthritis include a
compound of Formula 1 and methotrexate; a compound of Formula 1 and one or more
biological response modif1ers, such as lefluonomide, etanercept, adalimumab, and infliximab;
or a compound of a 1, methotrexate, and one or more biological response rs,
such as lefluonomide, etanercept, adalimumab, and infliximab.
For the treatment of is and sosis, the nds of Formula 1 may be
combined with one or more cardiovascular agents such as calcium l blockers, statins,
s, beta-blockers, ACE inhibitors, and platelet aggregation inhibitors.
The compounds of Formula 1 may also be combined with one or more compounds
or therapies for treating cancer. These include chemotherapeutic agents (i.e., cytotoxic or
antineoplastic agents) such as alkylating agents, antibiotics, antimetabolic , plant-
derived agents, and topoisomerase inhibitors, as well as molecularly targeted drugs which
block the growth and spread of cancer by interfering with specific molecules involved in
tumor growth and progression. Molecularly targeted drugs include both small les and
biologics.
Representative alkylating agents include bischloroethylamines (nitrogen mustards,
e. g., chlorambucil, hosphamide, ifosfamide, mechlorethamine, melphalan, and uracil
mustard); aziridines (e. g., thiotepa); alkyl alkone sulfonates (e. g., busulfan); nitrosoureas
(e. g., carmustine, lomustine, and streptozocin); nonclassical alkylating agents (e. g.,
amine, dacarbazine, and procarbazine); and platinum compounds (e. g., carboplatin,
cisplatin, nedaplatin, oxaliplatin, satraplatin, and triplatin tetranitrate).
Representative antibiotic agents include anthracyclines (e.g., aclarubicin, amrubicin,
daunorubicin, doxorubicin, icin, idarubicin, pirarubicin, valrubicin, and zorubicin);
anthracenediones (e.g., mitoxantrone and rone); and streptomyces (e. g., actinomycin,
bleomycin, dactinomycin, mitomycin C, and plicamycin).
Representative antimetabolic agents include dihydrofolate reductase inhibitors (e.g.,
aminopterin, rexate, and pemetrexed); hymidylate synthase inhibitors (e. g., raltitrexed
and pemetrexed); folinic acid (e. g., leucovorin); adenosine deaminase inhibitors (e. g.,
tatin); halogenated/ribonucleotide reductase inhibitors (e. g., bine, clofarabine,
and fludarabine); thiopurines (e. g., thioguanine and mercaptopurine); ylate synthase
inhibitors (e. g., fluorouracil, capecitabine, tegafur, carmofur, and floxuridine); DNA
polymerase inhibitors (e. g., cytarabine); ribonucleotide reductase inhibitors (e. g.,
gemcitabine); hypomethylating agent (e.g., azacitidine and decitabine); and ribonucleotide
reductase inhibitor (e. g., hydroxyurea); and an asparagine depleter (e.g., asparaginase)
entative plant-derived agents include vinca alkaloids (e. g., vincristine,
vinblastine, vindesine, vinzolidine, and vinorelbine), podophyllotoxins (e. g., etoposide and
teniposide), and taxanes (e. g., docetaxel, larotaxel, ortataxel, paclitaxel, and tesetaxel).
Representative type I topoisomerase inhibitors include camptothecins, such as
belotecan, irinotecan, rubitecan, and topotecan. Representative type II topoisomerase
inhibitors e amsacrine, ide, etoposide phosphate, and teniposide, which are
derivatives of epipodophyllotoxins.
larly targeted therapies include biologic agents such as cytokines and other
immune-regulating agents. Useful cytokines include interleukin-2 (IL-2, aldesleukin),
interleukin 4 (IL-4), interleukin 12 (IL-12), and interferon, which includes more than 23
d es. Other cytokines include granulocyte colony stimulating factor (CSF) (e. g.,
filgrastim) and granulocyte macrophage colony stimulating factor (GM—CSF or CSF2) (e. g.,
sargramostim, namimulab). Other immuno-modulating agents e bacillus Calmette—
Guerin, levamisole, and octreotide; monoclonal antibodies against tumor antigens, such as
trastruzumab and rituximab; and cancer vaccines, which induce an immune response to
tumors.
In addition, molecularly ed drugs that ere with specific molecules
ed in tumor growth and progression include inhibitors of epidermal growth factor
(EGF), transforming growth factor-alpha (TGFQ), TGFg, heregulin, insulin-like growth factor
(IGF), fibroblast growth factor (FGF), nocyte growth factor (KGF), colony ating
factor (CSF), erythropoietin (EPO), interleukin-2 (IL-2), nerve growth factor (NGF), platelet-
derived growth factor (PDGF), hepatocyte growth factor (HGF), vascular endothelial growth
factor (VEGF), angiopoietin, epidermal growth factor receptor (EGFR), human epidermal
growth factor receptor 2 (HER2), HER4, insulin-like growth factor 1 receptor (IGFlR),
IGF2R, fibroblast growth factor 1 receptor (FGFlR), FGF2R, FGF3R, FGF4R, vascular
endothelial growth factor receptor ), tyrosine kinase with immunoglobulin-like and
epidermal growth factor-like s 2 (Tie-2), platelet-derived growth factor receptor
(PDGFR), Abl, Bcr-Abl, Raf, FMS-like tyrosine kinase 3 (FLT3), c-Kit, Src, protein kinase c
(PKC), tropomyosin receptor kinase (Trk), Ret, mammalian target of rapamycin (mTOR),
Aurora , polo-like kinase (PLK), mitogen activated protein kinase (MAPK),
mesenchymal-epithelial transition factor ), cyclin-dependant kinase (CDK), Akt,
extracellular signal-regulated kinases (ERK), poly(ADP) ribose polymerase (PARP), and the
like.
Specific molecularly targeted drugs include selective estrogen receptor tors,
such as tamoxifen, toremifene, fulvestrant, and raloxifene; antiandrogens, such as
bicalutamide, mide, megestrol, and fiutamide; and aromatase inhibitors, such as
exemestane, anastrozole, and letrozole. Other specific molecularly targeted drugs include
agents which inhibit signal transduction, such as imatinib, dasatinib, nilotinib, trastuzumab,
gefitinib, erlotinib, cetuximab, lapatinib, panitumumab, and temsirolimus; agents that induce
apoptosis, such as bortezomib; agents that block angiogenesis, such as bevacizumab,
sorafenib, and sunitinib; agents that help the immune system destroy cancel cells, such as
mab and alemtuzumab; and monoclonal antibodies which deliver toxic les to
cancer cells, such as gemtuzumab ozogamicin, tositumomab, l3 lI-tositumoab, and
ibritumomab tiuxetan.
BIOLOGICAL ACTIVITY
The ty of compounds as BTK inhibitors may be determined by a variety of
methods, including in vitro and in viva methods. The following in vitro assay measures a test
compound’s ability to inhibit BTK-mediated phosphorylation of a FAM-labeled ate, 5-
FAM—EEPLYWSFPAKKK—NHZ.
Purified BTK may be obtained as follows (Clone SBVC—l603_9P is used). A cDNA
sequence encoding residues 382 to 659 of human BTK is cloned into the vector pSXB4. This
construct engineers an in-frame ational fusion with the Glutathione-S-Transferase
(GST) protein for use in affinity purification. The fusion protein derived from this construct
contains a protease recognition sequence to liberate the BTK from the GST affinity tag.
High-titer baculoviral stocks, generated using the Bac—to—Bac® system (Invitrogen), are used
to express the recombinant protein in Spodopterafrugiperda Sf9 cells in 10 L Wave bags.
inant proteins are isolated from cellular extracts by e over Glutathione
Sepharose 4B (GE Healthcare) and the BTK moiety is ed from the GST affinity tag by
treatment with PreScission protease. The BTK recombinant protein is further purified by size
ion chromatography (HiLoad 16/60 ex 200, GE Healthcare) in a buffer
ning 20 mM Hepes (pH 7.4), 50 mM NaCl, 10 mM MgC12, 0.25 mM TCEP and
0.1 mM EDTA. The purity of the fractions is ed by SDS PAGE and the peak protein
fractions are pooled and concentrated using Amicon Ultra-15 Centrifugal Filter Devices
(Millipore).
The inhibitory properties of compounds relative to BTK is determined using a black
384-well-plate format in a buffer which contains 50 mM Hepes, 10 mM NaCl, 10 mM
MgClz, 0.2 mM EDTA, 0.01% Brij35®, 1 mM DTT, and 0.1 mg/mL BSA at pH 7.3. The test
compound is prepared in DMSO using 2—fold serial dilutions for 11 data , which are
added to the buffer so that each dilution contains 3% DMSO. To initiate the assay, 5 uL of 3
uM 5FAM—EEPLYWSFPAKKK—NH2 (in buffer), 5 uL of diluted test compound (3% DMSO
in buffer), and 5 uL of 9 nM BTK and 150 uM ATP in buffer are combined in each well. The
reaction mixtures are incubated at room temperature for 60 s and then ed by
adding 25 [LL of 50 mM EDTA. To quantify the fluorescent—labeled substrate and product
following reaction, the test plate is loaded on a Caliper LC—3000, which measures percent of
conversion by microfluidic—based tion. Corresponding IC50 values are ated by
non-linear curve fitting of the compound concentrations and percent of inhibition to the
standard IC50 equation and reported as pIC50, i.e., -log(IC50), where IC50 is molar
concentration at 50% inhibition.
EXAMPLES
The following examples are ed to be illustrative and non-limiting, and
represent specific embodiments of the present invention.
1H Nuclear magnetic nce (NMR) spectra were obtained for many of the
compounds in the following examples. Characteristic chemical shifts (5) are given in partsper-million
downf1eld from tetramethylsilane using conventional abbreviations for
designation of major peaks, including s (singlet), d (doublet), t (triplet), q (quartet), m
(multiplet), and br (broad). The following abbreviations are used for common solvents:
CDCl3 (deuterochloroform), DMSO—d6 (deuterodimethylsulfoxide), CD3OD
(deuteromethanol), CD3CN (deuteroacetonitrile), and THF-dg rotetrahydrofuran). The
mass spectra (M+H) were recorded using either electrospray ionization (ESI—MS) or
atmospheric pressure chemical ionization (APCI-MS).
Where indicated, products of n preparations and examples are purified by
mass-triggered HPLC (Pump: WatersTM 2525; MS: ZQTM; Software: MassLynxTM), flash
tography or preparative thin layer chromatography (TLC). Reverse phase
chromatography is typically carried out on a column (e. g., GeminiTM 5um C18 110A,
AxiaTM, 30 x 75 mm, 5 um) under acidic ions (“acid mode”) eluting with ACN and
water mobile phases containing 0.035% and 0.05% trifluoroacetic acid (TFA), respectively,
or under basic conditions (“basic mode”) g with water and 20/80 (v/v) water/acetonitrile
mobile phases, both containing 10 mM NH4HCO3. Preparative TLC is typically d out
on silica gel 60 F254 plates. After isolation by chromatography, the solvent is removed and the
t is obtained by drying in a centrifugal evaporator (e. g., GeneVacTM), rotary
evaporator, evacuated flask, etc. ons in an inert (e. g., nitrogen) or reactive (e.g., H2)
atmosphere are typically carried out at a pressure of about 1 atmosphere (14.7 psi).
PREPARATION x1: (R)-3 -(1-(pyrrolidin-3 -yloxy)isoquinolin-3 -yl)-1H—1,2,4-
l—5(4H)—one
NrNH
I o
\ N
| H
STEP A: (R)—tert—butyl 3 -((3 -cyanoisoquinolinyl)oxy)pyrrolidinecarboxylate
O 0
\CN CH3
0%0'43
A mixture of (R)-tert—butyl 3-hydroxypyrrolidinecarboxylate (496 mg, 2.65
mmol) in NMP (4 mL) at 0°C was treated with NaH (106 mg, 2.65 mmol) and stirred for
1 hour. Next, 1—chloroisoquinoline—3—carbonitrile (500 mg, 2.65 mmol) was added and the
reaction mixture was stirred at RT for 15 minutes and then heated at 140°C for 15 s in
a microwave reactor. The crude reaction mixture, which contained the title compound, was
used ly in the next step.
STEP B: (R)—tert—butyl 3—((3-(5-oxo-4,5-dihydro-1H—1,2,4-triazol-3 -yl)isoquinolin-
1-yl)oxy)pyrrolidinecarboxylate
To crude (R)—tert—butyl 3—((3—cyanoisoquinolin—1—yl)oxy)pyrrolidine—1—carboxylate
was added ethyl hydrazinecarboxylate (1.104 g, 10.60 mmol). The reaction mixture was
heated at 175°C overnight and was subsequently cooled and diluted with EtOAc. The organic
phase was washed with brine, dried over NaZSO4, and concentrated to give the title
compound, which was used directly in the next step.
STEP C: (R)(l-(pyrrolidinyloxy)isoquinolinyl)-1H-l,2,4-triazol-5(4H)-one
To crude (R)—tert—butyl 3—((3—(5—oxo—4,5-dihydro-1H-l,2,4-triazolyl)isoquinolin-
l-yl)oxy)pyrrolidine-l-carboxylate was added a minimal amount ofNMP and TFA (2 mL).
The solution was d at RT for 10 s and concentrated. The crude product was
purified by preparative HPLC eluting with a gradient of 15-22% ACN in water (acid mode)
to give the title compound (229 mg, 29% over 3 steps).
ATION x2: (S)-tert—butyl 3-((3 -cyanoisoquinolin-l-yl)amino)pyrrolidine-
l-carboxylate
HN,,. 0
0404:343
A mixture of (S)-tert—butyl 3-aminopyrrolidine-l-carboxylate (434 mg, 2.333 mmol)
in NMP (2.5 mL) at 0°C was treated with NaH (93 mg, 2.333 mmol) and stirred for 1 hour.
Next, l-chloroisoquinoline-3 -carbonitrile (400 mg, 2. 121 mmol) was added and the reaction
e was stirred at RT for 15 minutes and then heated at 140°C for 15 minutes in a
microwave reactor. The crude reaction mixture, which contained the title compound, was
used without further purification. ESI-MS m/z [M+H]+ 339.4.
PREPARATION x3: (S)(l-(pyrrolidinylamino)isoquinolinyl)-lH—l,2,4-
triazol—5(4H)—one
[\i N\/\\0aNH
| H
HN,,'CNH
STEP A: (S)—tert—butyl 3 -((3-(5-oxo-4,5-dihydro-1H-l,2,4-triazolyl)isoquinolin-
mino)pyrrolidine- l -carboxylate
I \F0
| N
HN,,, O
N 3
To a crude reaction e containing (S)-tert—butyl 3—((3 —cyanoisoquinolin—1—
yl)amino)pyrrolidinecarboxylate (717 mg) was added NMP (2 mL) and ethyl
hydrazinecarboxylate (883 mg, 8.484 mmol). The reaction mixture was heated at 175°C
overnight and was uently cooled, diluted with EtOAc, and washed with aqueous
NH4Cl. The organic layer was ted and concentrated to give the title compound, which
was used directly in the next step.
STEP B: (S)(1-(pyrrolidinylamino)isoquinolinyl)-1H—1,2,4-triazol-5(4H)-
To crude (S)—tert—butyl 3—((3—(5—oxo—4,5—dihydro-1H—1,2,4-triazol-3 -yl)isoquinolin-
1-yl)amino)pyrrolidinecarboxylate was added DCM (3 mL) and TFA (1 mL). The mixture
was stirred for 1 hour and concentrated. The crude product was purified by preparative HPLC
eluting with a gradient of 5-30% ACN in water (acid mode) to give the title compound
(8 mg)-
PREPARATION x4: 1-(bromomethyl)isoquinolinecarbonitrile
STEP A: Methyl nolinecarboxylate
O 0
To a solution of isoquinolinecarboxylic acid (10 g, 57.74 mmol) in MeOH (150
mL) was added concentrated sulfuric acid (15 mL) at 0°C. The mixture was warmed to 65°C
and stirred at 65°C for 24 hours. After cooling to RT, the reaction mixture was partitioned
between DCM and ted aqueous NaHCO3. The organic layer was separated and dried
over NazSO4, and the solvent was evaporated under reduced pressure to give the title
compound as a yellow oil (11.2 g, 100%). ESI—MS m/z [M+H]+ 188.
STEP B: 1-(methoxycarbonyl)isoquinoline 2-oxide
\ N:
O 0
To a suspension of methyl isoquinoline-1—carboxylate (11.2 g, 59.8 mmol) in DCM
(150 mL) was added 3—chloroperoxybenzoic acid (15.5 g, 89.7 mmol) at 0°C. The mixture
was warmed to RT and was stirred at RT for 24 hours. The reaction was quenched with
saturated aqueous NaHCO3 and the mixture was extracted with DCM. The organic layer was
separated and dried over NazSO4, and the solvent was evaporated under reduced pressure.
The crude product was purified by silica gel chromatography eluting with petroleum ether
and EtOAc (1:1) to give the title nd as a white solid (9.5 g, 78%). ESI—MS m/z
[M+H]+ 204.
STEP C: Methyl 3-chloroisoquinolinecarboxylate
O 9
A mixture of hoxycarbonyl)isoquinoline e (9.5 g, 46.75 mmol) and
POCl3 (50 mL) was heated at 100°C for 4 hours. The reaction mixture was subsequently
cooled and concentrated, and the crude product was purified by silica gel tography
eluting with petroleum ether and EtOAc (15: 1) to give the title compound as a white solid
(5.1 g, 49%). ESI—MS m/z [M+H]+ 222.
STEP D: (3-chloroisoquinolinyl)methanol
To a solution of methyl 3-chloroisoquinolinecarboxylate (5.1 g, 23.0 mmol) in
MeOH (50 mL) was added NaBH4 (2.17 g, 57.5 mmol). The on mixture was stirred at
RT for 2 hours. The reaction was quenched with saturated aqueous NH4Cl and the mixture
was extracted with EtOAc. The organic layer was separated and dried over NazSO4, and the
solvent was evaporated under reduced pressure to give the title compound as a yellow solid
(3.94 g, 88%). ESI—MS m/z [M+H]+ 194.
STEP E: 1-(hydroxymethyl)isoquinolinecarbonitrile
A suspension of (3 —chloroisoquinolinyl)methanol (1.0 g, 5.17 mmol), zinc
cyanide (672 mg, 5.68 mmol), Pd2(dba)3 (190 mg, 0.21 mmol), XPhos (241 mg, 0.52 mmol)
in DMF (15 mL) was heated at 150°C for 1 hour under a nitrogen atmosphere in a microwave
r. The reaction mixture was subsequently diluted with water and extracted with EtOAc.
The organic layer was separated and dried over NazSO4, and the solvent was evaporated
under d pressure. The crude product was purified by silica gel chromatography eluting
with petroleum ether and EtOAc (4: 1) to give the title compound as a yellow solid (330 mg,
34%). ESI—MS m/z [M+H]+ 185.1.
STEP F: 1-(bromomethyl)isoquinolinecarbonitrile
A sion of l—(hydroxymethyl)isoquinolinecarbonitrile (0.150 g, 0.814
mmol) in THE (0.8 mL) and treated with PBr3 (0.814 mL, 0.814 mmol). The reaction mixture
was stirred at RT for 2 hours, then poured over ice and lized with saturated aqueous
NaHCO3. The e was warmed to RT and extracted with EtOAc (20 mL). The organic
phase was separated, dried over MgSO4, filtered, and concentrated in vacuo to give the title
compound as a yellow solid. The crude product was dried under high vacuum and used
without further purification (0.15 g, 75%). ESI—MS m/z [M+H]+ 247.5.
ATION x5: 1-chlorofluoroisoquinolinecarbonitrile
F CI
STEP A: methyl 2—bromo—6—fluorobenzoate
Br 0
do,CH3F
To a solution 2—bromo—6—fluorobenzoic acid (50 g, 0.229 mol) and potassium
carbonate (31.6 g, 0.229 mol) in N,N—dimethylformamide (250 mL) was added dropwise
methyl iodide (51.83 g, 0.365 mol) over a 30 minute period. The reaction mixture was stirred
at RT for 3.5 hours. The resulting mixture was diluted with water (500 mL) and extracted
with EtOAc (3 x 300 mL). The combined organic layers were washed with 1M aqueous HCl
(100 mL), dried over anhydrous NaZSO4, filtered, and concentrated under reduced pressure to
give the title compound (53 g, 99.7%).
STEP B: methyl 2-fluorovinylbenzoate
mm\CHZ
F O
To a solution of methyl 2—bromo—6—fluorobenzoate (53 g, 0.228 mol) and potassium
trifluoro(vinyl)borate (33.63 g, 0.251 mol) in dioxane and H20 (3:1, 600 mL) was added
Pd(dppf)Clz (5 g, 6.84 mmol) and sodium carbonate (69 g, 0.684 mol) at RT. The reaction
mixture was heated at 100°C for 12 hours under a nitrogen atmosphere. The e was
concentrated in vacuo, diluted with water, and ted with EtOAc (3 x 200 mL). The
combined organic layers were washed with brine, dried over ous NazCO3, filtered, and
concentrated. The crude product was purified by column chromatography eluting with a
gradient of EtOAc %) and PE to give the title compound (31.4 g, 76.5%). 1H NMR
(400 MHz, CDC13) 5 ppm 7.45—7.36 (m, 2H), 7.03—7.02 (m, 1H), 6.88—6.81 (m, 1H), 5.77—
.73 (m, 1H), 5.41—5.39 (d, J=10.8 Hz, 1H), 3.95(s, 3H).
STEP C: methyl 2-fluoroformylbenzoate
F O
Into a solution of methyl 2-fluorovinylbenzoate (31 g, 0.172 mol) in dry
dichloromethane (300 mL) was bubbled 03 at —78°C over a 30 minute period. Next, nitrogen
gas was bubbled into the solution until it turned ess. Dimethylsulfane (84.13 g, 1.36
mol) was added dropwise to the solution, which was uently warmed to RT and stirred
for 2 hours. The mixture was then washed with water (30 mL) and extracted with DCM (3 x
300 mL). The combined organic layers were dried over NaZSO4 and concentrated. The crude
product was purified by column chromatography eluting with a nt of EtOAc 0%)
and PE to give the title compound (21 g, 67%). 1H NMR (400 MHz, CDCl3) 5 ppm 10.01 (s,
1H), 7.65—7.63 (d, J=7.6 Hz, 1H), 7.56—7.53 (dd, J1=5.2 Hz, J2=8.0 Hz, 1H), 7.35-7.30 (t,
J=8.4 Hz, 1H), 3.94 (s, 3H).
STEP D: thyl 2-fiuoro((5-oxophenyloxazol-4(5H)—ylidene)methyl)
This step was performed in five separate batches. For each batch, a solution of
methyl 2-fiuoroformylbenzoate (3 g, 16.5 mmol), 2-benzamidoacetic acid (3.6, 20 mmol)
and sodium acetate (1.62 g, 19.7 mmol) in acetic anhydride (30 mL ) was heated at 100°C in
a microwave reactor (100 W, 150 psi) under nitrogen atmosphere for 2 hours. The reaction
mixtures were diluted with EtOAc (100 mL) and washed with ted aqueous NazCO3.
The combined organic layers were concentrated in vacuo to give the title compound as a
brown solid, which was used without further purification (15 g). EST—MS m/z [M+H]+ 326.2.
STEP E: methyl 8-fiuoro-l-oxo-l,2-dihydroisoquinolinecarboxylate
\ 0.0H3
F O
A on of crude (Z)—methyl 2—fiuoro((5—oxo—2—phenyloxazol—4(5H)—
ylidene)methyl) benzoate (15 g) and potassium hydroxide (2.58 g, 46 mmol) in acetic
anhydride (150 mL) was heated at 100°C for 2 hours. The solvent was removed in vacuo, and
the residue was diluted with water (30 mL). The resulting mixture was lized with 1M
aqueous HCl (100 mL) and filtered. The solids were dried in vacuo to give 8—fiuoro—l—oxo—
hydroisoquinolinecarboxylic acid (4 g, EST-MS m/z [M+H]+ 208.0) which was
converted to the methyl ester as described, below. The filtrate was concentrated under
reduced pressure to give crude product which was purified by column chromatography
eluting with a gradient of EtOAc (30-100%) and PE to give a first batch of the title
compound (2 g, 19.6%). EST—MS m/z [M+H]+ = 222.1.
To a solution of 8—fiuoro—l—oxo—l,2—dihydroisoquinoline—3—carboxylic acid (4 g,
19.3 mmol) in MeOH (100 mL) was added SOClz (20 mL) at 0°C. The reaction mixture was
WO 64558
stirred at RT for 30 minutes and then heated to reflux for 5 hours. The reaction mixture was
uently concentrated in vacuo. The crude product was purified by column
chromatography eluting with petroleum ether and ethyl acetate (PE/EtOAc=1: 1-1 :2 gradient)
to give a second batch of the title compound (3 g, 80%). 1H NMR (400 MHz, DMSO—dg) 5
ppm 11.19 (s, 1H), 7.79—7.71 (m, 2H), 7.42—7.38 (m, 2H), 3.89 (s, 3H).
STEP F: 8-fluorooxo-1,2-dihydroisoquinoline-3 -carboxamide
\ NH2
F O
To a vessel containing NH3/MeOH (140 mL) was added methyl 8-fluorooxo-1,2-
dihydroisoquinoline—3—carboxylate (5 g, 15 mmol). The vessel was sealed and the solution
was stirred at RT for 30 s and then heated to reflux for 2 hours. The reaction mixture
was concentrated in vacuo to give the title compound, which was used without further
purification (5 g, 85%). 1H NMR (400 MHz, 6) 5 ppm 10.26 (s, 1H), 8.32 (s, 1H),
7.92 (s, 1H), 7.82—7.81 (m, 1H), 7.61—7.59 (d, J=8.0 Hz, 1H), 7.41—7.35 (m, 1H).
STEP G: 1—chloro—8—fluoroisoquinolinecarbonitrile
A solution of 8-fluoro—1—oxo—1,2—dihydroisoquinoline—3 —carboxamide (5 g, 5.5
mmol) in POCl3 (46.23 g) was heated to reflux for 4 hours and was subsequently
concentrated in vacuo. The crude product was purified by column chromatography eluting
with eum ether and ethyl acetate (PE/EtOAc=5:1-2:1 gradient) to give the title
nd (3.2 g, 35%). ESI—MS m/z [M+H]+ 207.1.
PREPARATION x6: 1,7-dichloroisoquinolinecarbonitrile
\//N
STEP A: methyl 5-chlorovinylbenzoate
\CHZ
CI O‘CH3
A stirred suspension of methyl 2—bromo—5—chlorobenzoate (10 g, 40.08 mmol),
potassium trifluoro(vinyl)borate (8.05 g, 60.12 mmol), Pd(dppf)Clz (1.64 g, 2.0 mmol) and
sodium carbonate (8.5 g, 80.16 mmol) in dioxane (150 mL) and water (15 mL) was refluxed
for 8 hours under a nitrogen atmosphere. After cooling to RT, the mixture was filtered,
concentrated, and the crude product was purified by column chromatography eluting with
petroleum ether and ethyl acetate (PE/EtOAc=100:1-50:1 gradient) to give the title
compound (31.4 g, . 1H NMR (400 MHz, CDC13) 5 ppm 7.80 (d, J=2.0 Hz, 1H), 7.45
(d, J=8.0 Hz, 1H), 7.31—7.39 (m, 2H), 5.57 (d, J=17.6 Hz, 1H), 5.31 (d, J=10.8 Hz, 1H), 3.83
(s, 3H).
STEP B: methyl 5-chloroformylbenzoate
CI O‘CH3
Into a on of methyl 5-chlorovinylbenzoate (16.3 g, 82.89 mmol) in dry
DCM (250 mL) was bubbled 03 at —78°C over a 30 minute period. Next, nitrogen gas was
bubbled into the solution until it turned ess. Dimethylsulfane (10.3 g, 165.79 mmol)
was added dropwise. The ing e was warmed to RT, stirred for 2 hours, and
concentrated. The crude product was purified by silica gel column chromatography eluting
with petroleum ether and ethyl acetate (PE/EtOAc=40: 1) to give the title compound as a
white solid (10 g, 60%). 1H NMR (400 MHz, CDC13) 5 ppm 10.52 (s, 1H), 7.89 (d, J=2.0 Hz,
1H), 7.84 (d, J=8.0 Hz, 1H), 7.55 (dd, J=8.0 Hz and 2.0 Hz, 1H), 3.93 (s, 3H).
STEP C: ethyl 7-chlorooxo-1,2-dihydroisoquinolinecarboxylate
\ o/\CH3
To a stirred e ofNaH (1.81 g, 30.3 mmol) in DMF (20 mL ) was added a
solution of methyl 5-chloroformylbenzoate (5.0 g, 25 mmol) and ethyl 2-isocyanoacetate
(2.85 g, 25 mmol) in DMF (60 mL) at 40°C over a 20 minute period. The reaction mixture
was stirred at 20°C for 2 hours. Its pH was adjusted to 7.0 with acetic acid (10%) and the
mixture was extracted with DCM (3 x 200 mL). The organic layers were combined, washed
with brine (200 mL), dried over NazSO4, and concentrated. The crude product was purified
by silica gel column chromatography eluting with petroleum ether and ethyl acetate
(PE/EtOAc=15:1-5:1 gradient) to give the title compound (2.0 g, 31%). ESI—MS m/z [M+H]+
252.1.
STEP D: 7-chlorooxo-1,2-dihydroisoquinolinecarboxamide
\ NH2
Ethyl 7-chlorooxo-1,2-dihydroisoquinolinecarboxylate (5 80 mg, 2.30 mmol)
was dissolved in NH3/MeOH(4.0M, 15 mL) and the reaction mixture was stirred at RT
overnight. The solvent was removed in vacuo. The resulting residue was washed with
petroleum ether and dried to give the title compound (200 mg, 38%). ESI—MS m/z [M+H]+
223.1.
STEP E: 1,7-dichloroisoquinoline-3 -carbonitrile
A solution of 7—chloro—1—oxo—1,2—dihydroisoquinoline—3—carboxamide (550 mg, 2.46
mmol) in POC13 (10 mL) was heated to reflux for 6 hours. The solvent was subsequently
removed in vacuo and the crude product was purified by column chromatography g
with petroleum ether and ethyl acetate =30: 1) to give the title compound (450 mg,
81.8%). 1H NMR (400 MHz, CDCl3) 5 ppm 8.35 (d, J=1.6 Hz, 1H), 8.02 (s, 1H), 7.85 (d,
J=8.0 Hz, 1H), 7.80 (dd, J=1.6 Hz and 8.0 Hz, 1H).
PREPARATION x7: 1,8-dichloroisoquinolinecarbonitrile
CI CI
STEP A: methyl 2—bromo—6—chlorobenzoate
990Br
CI O\CH3
To a solution 2—bromo—6—chlorobenzoic acid (9.5 g, 0.041 mol) and potassium
carbonate (8.6 g, 0.061 mol) in N,N—dimethylformamide (50 mL) was added methyl iodide
(11.2 g, 0.081 mol) dropwise over a 10 minute period. The on mixture was d at RT
for 3.5 hours and was subsequently diluted with water (500 mL). The aqueous phase was
back—extracted with EtOAc (3 x 300 mL). The organic layers were combined, washed with
1M HCl aq (100 mL), dried over anhydrous , filtered, and concentrated under reduced
pressure to give the title compound (10.0 g, 99.4%). 1H NMR (400 MHz, CDC13) 5 ppm
7.413 (d, J=8 Hz, 1H), 7.29 (d, J=8 Hz, 1H), 7.137 (t, J=8 Hz, 1H), 3.9 (s, 3H).
STEP B: methyl 2-chlorovinylbenzoate
WO 64558
©9313\CHZ
CI 0
To a solution of methyl o—6—chlorobenzoate (7.5 g, 0.03 mol) and potassium
trifluoro(Vinyl)borate (6.07 g, 0.045 mol) in dioxane and H20 (10: 1, 100 mL) was added
f)Clz (739 mg, 0.906 mmol), and sodium carbonate (6.4 g, 0.06 mol) at RT. The
reaction mixture was heated at 100°C for 12 hours under a nitrogen atmosphere. The mixture
was subsequently concentrated in vacuo and diluted with water. The aqueous phase was
extracted with EtOAc (3 x 100 mL). The organic layers were combined, washed with brine,
dried over anhydrous NazCO3, filtered, and concentrated. The crude product was purified by
column chromatography eluting with a gradient of EtOAc (0-90%) and PE to give the title
compound (6.7 g, 85%). 1H NMR (400 MHz, CDCl3) 5 ppm 7.39—7.41 (m, 1H), 7.22-7.26
(m, 2H), 6.55-6.62 (m, 1H), 5.68 (d, J=17.2 Hz, 1H), 5.31 (d, J=11.2 Hz, 1H).
STEP C: methyl 2-chloroformylbenzoate
O‘CH3
CI 0
Into a solution of methyl 2-chloroVinylbenzoate (6.7 g, 34 mmol) in dry DCM
(100 mL) was bubbled 03 at —78°C over a 30 minute period. Next, nitrogen gas was bubbled
into the on until the solution was colorless. Dimethylsulfane (4.3 g, 68 mmol) was
added se and the resulting mixture was warmed to RT and stirred for 2 hours. The
reaction mixture was subsequently washed with water (30 mL) and extracted with DCM (3 x
100 mL). The c layers were combined, dried over NaZSO4, and concentrated. The crude
product was purified by column chromatography eluting with a nt of EtOAc (0-90%)
and PE to give the title compound (3.8 g, 56%). 1H NMR (400 MHz, CDC13) 5 ppm 9.89 (s,
1H), 7.728 (d, J=7.2 Hz, 1H), 7.606 (d, J=8.0 Hz, 1H), 7.489 (t, J=8.0 Hz, 1H), 3.95 (s, 3H).
STEP D: ethyl 8-chlorooxo-1,2-dihydroisoquinolinecarboxylate
\ o/\CH3
CI 0
To a solution ofNaH (652.8 mg, 16.32 mmol) in DMF (20 mL) was added methyl
2-chloroformylbenzoate (2.7 g, 13.6 mmol) and ethyl 2-isocyanoacetate (1.55 g,
13.6 mmol) in DMF (5 mL) at 40°C over a 20 minute period. The reaction mixture was
2014/022801
stirred at 20°C for an additional 30 minutes. The on mixture was subsequently diluted
with EtOAc (100 mL) and washed with saturated aqueous NazCO3. The organic phase was
concentrated in vacuo. The crude product was purified by column chromatography eluting
with a gradient of EtOAc ) and PE to give the title compound (0.5 g, 15.6%). ESI—MS
m/z [M+H]+ 252.1.
STEP E: 8-chlorooxo-1,2-dihydroisoquinolinecarboxamide
\ NH2
CI 0
To a vessel containing OH (10 mL) was added ethyl 8—chloro—1—oxo—1,2—
dihydroisoquinoline—3 —carboxylate (500 mg, 1.99 mmol). The vessel was sealed and the
resulting solution was d at RT for 1 hour. The reaction mixture was subsequently
concentrated in vacuo to give the title compound, which was used without further purification
(0.5 g, 98%). ESI—MS m/z [M+H]+ 223.1.
STEP F: 1,8-dichloroisoquinoline-3 -carbonitrile
A solution of 8—chloro—1—oxo—1,2—dihydroisoquinoline—3—carboxamide (0.5 g, 1.99
mmol) in POCl3 (10 mL) was heated to reflux for 4 hours. The reaction mixture was
subsequently concentrated in vacuo and the crude product was purified by column
chromatography eluting with petroleum ether and ethyl acetate (PE/EtOAc=5:1-2:1 gradient)
to give the title compound (200 mg, 40%). ESI—MS m/z [M+H]+ 223.1.
PREPARATION x8: romethoxyisoquinoline-3 -carbonitrile
,0 CI
STEP A: methyl 2-bromomethoxybenzoate
To a mixture of 2-bromomethoxybenzoic acid (40 g, 0.176 mol) in DMF
(300 mL) was added K2CO3 (24.8 g, 0.176 mol) and CH3I (37 g, 0.264 mol). The mixture
was stirred at RT overnight. The reaction was quenched with 1M HCl aq and the mixture was
extracted with EtOAc (3 x 300 mL). The organic phase was dried over MgSO4 and
concentrated in vacuo to give the title compound (41 g, 99%).
STEP B: methyl 2-methoxyvinylbenzoate
\CHZ
HgC’O O
To a mixture of methyl 2-bromomethoxybenzoate (30 g, 0.12 mol) and
potassium trifluoro(vinyl)borate (18 g, 0.13 mol) in dioxane and H20 (5: 1, 360 mL) was
added Pd(dppf)Clz (2.63 g, 0.0036 mol) and NazCO3 (25.4 g, 0.24 mol) at RT. The reaction
mixture was heated at 100°C for 12 hours under a nitrogen atmosphere. The mixture was
subsequently concentrated in vacuo, diluted with water, and extracted with EtOAc (3 x
100 mL). The organic layers were combined, washed with brine, dried over ous
, filtered, and concentrated. The crude product was purified by column
chromatography eluting with a gradient of petroleum ether (1-2%) and EtOAc to give the title
compound (22 g, 95%). 1H NMR (400 MHz, CDCl3) 5 ppm 7.33 (t, J=8.0 Hz, 1H), 7.18 (d,
J=8.0 Hz, 1H), 6.85 (d, J=8.0 Hz, 1H), 6.67 (dd, J=11.0, 17.4 Hz, 1H), 5.75 (d, J=17.4 Hz,
1H), 5.35 (d, J=11.0 Hz, 1H), 3.93 (s, 3H), 3.84 (s, 3H); EST—MS m/z [M+H]+ 193.
STEP C: methyl 2-formylmethoxybenzoate
0/ O
Into a solution of methyl 2-methoxyvinylbenzoate (22 g, 0.11 mol) in ous
DCM (400 mL) was bubbled 03 at —78°C over a 30 minute period. Next, nitrogen gas was
bubbled into the solution until it turned ess. Dimethylsulfane (20 mL) was added
dropwise and the ing mixture was warmed to RT and stirred for 2 hours. The mixture
was washed with water (30 mL) and the aqueous layer was extracted with DCM (3 x
100 mL). The organic layers were combined, dried over NaZSO4, and concentrated. The crude
product was purified by column chromatography eluting with a gradient of EtOAc (0-90%)
and PE to give the title nd (11.8 g, 53.6%). 1H NMR (400 MHz, CDCl3) 5 ppm 9.97
(s, 1H), 7.56 (t, J=8.0 Hz, 1H), 7.47 (d, J=8.0 Hz, 1H), 7.22 (d, J=8.0 Hz, 1H), 3.98 (s, 3H),
3.90 (s, 3H).
STEP D: (Z)-methyl 2-methoxy((5-oxophenyloxazol-4(5H)—
ylidene)methyl)benzoate
To a solution of methyl 2-formylmethoxybenzoate (1.6 g, 8.24 mmol) in acetic
ide (10 mL) was added 2—benzamidoacetic acid (1.77 g, 9.88 mmol) and NaOAc
(810 mg, 9.88 mmol). The mixture was heated at 100°C in a ave reactor. The reactant
mixture was partitioned between EtOAc (30 mL) and H20 (50 mL). The organic layer was
washed with saturated aqueous NazCO3 (5 x 30 mL), dried over NazSO4, and concentrated to
give the title compound (7 g). ESI—MS m/z [M+H]+ 338.1.
STEP E: methyl 8-methoxyoxo-1,2-dihydroisoquinoline-3 -carboxylate
\ O,CH3
,O O
To a solution of (Z)-methyl 2-methoxy((5-oxophenyloxazol-4(5H)-
ylidene)methyl)benzoate (4.2 g, 12.45 mmol) in MeOH (50 mL ) was added KOH (2.1 g,
37.35 mmol). The reaction mixture was heated to reflux for 1 hour. The solvent was
uently removed and the residue was partitioned n water (30 mL) and EtOAc
(20 mL). The aqueous layer was extracted with EtOAc (3 x 20 mL). The organic layers were
combined, concentrated in vacuo, adjusted to pH=3 with a 4M solution of HCl in MeOH, and
concentrated. The resulting brown solid which was d by column chromatography
eluting with petroleum ether and ethyl acetate (PE/EtOAc=5:1-1:1 gradient) to give the title
compound (1 g, 26.3% over 2 steps). 1H NMR (400 MHz, CDC13) 5 ppm 8.55 (s, 1H), 7.58 (t,
1H, J=8.0 Hz), 7.12 (d, 1H, J=8.0 Hz), 6.97 (d, 1H, J=8.0Hz), 6.67 (s, 1H), 4.01 (s, 3H).
STEP F: 8-methoxyoxo-1,2-dihydroisoquinolinecarboxamide
\ NH2
,O 0
To a vessel containing NH3/MeOH (20 mL) was added methyl 8-methoxyoxo-
1,2—dihydroisoquinoline—3—carboxylate (800 mg, 3.43 mmol). The vessel was sealed and the
solution was stirred at 50°C for 16 hours. The reaction mixture was subsequently
concentrated in vacuo to give the title compound, which was used without further purification
(800 mg). 1H NMR (400 MHz, DMSO-d6) 5 ppm 8.22 (s, 1H), 7.80 (s, 1H), 7.66 (t, 1H,
J=8.0 Hz), 7.19—7.22 (m, 2H), 7.09 (d, J=8.0 Hz, 1H), 3.85 (s, 3H); EST—MS m/z [M+H]+
219.
STEP G: 1-chloromethoxyisoquinolinecarbonitrile
A on of 8—methoxy—1—oxo—1,2—dihydroisoquinoline—3—carboxamide (800 mg,
3.66 mmol) in POCl3(40 mL) was heated to reflux for 1 hour. The reaction mixture was
subsequently concentrated in vacuo to give the title nd (660 mg, 82%). 1H NMR (400
MHz, CDC13) 5 ppm 7.98 (s, 1H), 7.78 (t, 1H, J=8.0 Hz), 7.48 (d, 1H, J=8.0 Hz), 7.20(d, 1H,
J=8.0 Hz), 4.05 (s, 3H); EST—MS m/z [M+H]+ 219.
EXAMPLE 1: (1-((1-methacryloylpyrrolidinyl)oxy)isoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
To a solution of (R)(1-(pyrrolidinyloxy)isoquinolinyl)-1H-1,2,4-triazol-
(4H)—one (30 mg, 0.101 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine (0.023 mL,
0.202 mmol) at 0°C followed by methacryloyl chloride (21.10 mg, 0.202 mmol). The
reaction mixture was stirred at RT overnight, which ed in little conversion of the
starting material. The reaction mixture was subsequently treated with excess 2,6—
dimethylpyridine and methacryloyl chloride, stirred for 30 minutes, and concentrated. The
residue was d with MeOH and the crude product purified by preparative HPLC eluting
with a gradient of 25-45% ACN in water (acid mode) to give a TFA salt of the title
compound (6 mg,16%). 1H NMR (400 MHz, DMSO—dg) (rotamers were observed) 5 ppm
1.83 (s, 1.5 H), 1.89 (s, 1.5H), 2.10-2.75 (m, 2 H), 3.50-4.24 (m, 4 H), 5.10— 5.40 (m, 2 H),
6.14 (d, J=12.38 Hz, 1 H), 7.62-7.70 (m, 1 H), 7.81 (t, J=7.58 Hz, 1 H), 7.98 (s, 1 H), 8.01 (d,
J=8.08 Hz, 1 H), 8.11—8.22 (m, 1 H), 11.80 (s, 1 H), 12.04 (d, J=14.40 Hz, 1 H); EST—MS m/z
[M+H]+ 366.5.
EXAMPLE 2: (R)(1-((1-acryloylpyrrolidinyl)oxy)isoquinolinyl)-1H—1,2,4-
triazol—5(4H)—one
To a solution of (R)(1-(pyrrolidinyloxy)isoquinolinyl)—1H-1,2,4-triazol-
(4H)—one (11 mg, 0.037 mmol) in DCM (3mL) was added 2,6-dimethylpyridine (5.80 ”L,
0.050 mmol) at 0°C followed by yl chloride (8.08 uL, 0.100 mmol). The reaction
mixture was stirred at RT overnight, forming a white solid. The solids were filtered and dried
to give the title compound (4 mg, 23%). 1H NMR (400 MHz, CD3CN) 5 ppm 2.22—2.51 (m, 2
H), 3.09—3.17 (m, 1 H), 3.68—3.91 (m, 2 H), 3.94 (br s, 1 H), 4.06 (d, J=12.13 Hz, 1 H), 5.60—
.76 (m, 1 H), 5.98 (br s, 1 H), 6.06 (br s, 1 H), .62 (m, 1 H), 7.62—7.74 (m, 1 H), 7.79
(d, J=7.58 Hz, 1 H), 7.92 (d, J=3.79 Hz, 1 H), 8.15 (d, J=8.08 Hz, 1 H); EST-MS m/z [M+H]+
352.0.
EXAMPLE 3: (R,E)—3-(1-((1-(butenoyl)pyrrolidinyl)oxy)isoquinolinyl)-
1H-1,2,4-triazol-5(4H)—one
To a on of (R)(1-(pyrrolidinyloxy)isoquinolinyl)—1H-1,2,4-triazol-
(4H)—one (30 mg, 0.101 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine (0.016 mL,
0.136 mmol) at 0°C followed by (E)—but—2—enoyl chloride (28.5 mg, 0.273 mmol). The
reaction mixture was stirred at RT ght, which resulted in little conversion of the
starting material. The reaction mixture was subsequently treated with excess 2,6—
dimethylpyridine and (E)-butenoyl chloride, stirred for 30 minutes, and concentrated. The
reaction was quenched with MeOH and the crude product purified by preparative HPLC
g with a gradient of 25-45% ACN in water (acid mode) to give a TFA salt of the title
compound (10 mg, 20%). 1H NMR (400 MHz, DMSO—d6) (rotamers were observed) 5 ppm
1.81 (d, J=1.52 Hz, 1.5H), 1.86 (d, J=1.52 Hz,1.5H), 2.19—2.70 (m, 2 H), 3.59—4.11 (m, 4 H),
6.14 (m, 0.5 H), 6.22 (m, 0.5 H), 6.27 (dd, J=15.16 Hz, 1.77 Hz, 0.5 H), 6.37 (dd, J=15.16,
1.77 Hz, 0.5 H), 6.63—6.77 (m, 1 H), 7.61—7.70 (m, 1 H), 7.77—7.84 (m, 1 H), 7.99 (d, J=3.03
Hz, 1 H), 8.02 (d, J=9.09 Hz, 1 H), 8.16 (d, J=8.34 Hz, 1 H), 11.80 (br s, 1 H), 12.05 (d,
J=4.04 Hz, 1 H); ESI—MS m/z [M+H]+ 366.5.
EXAMPLE 4: N—(1-(3-(5-oxo-4,5-dihydro-1H—1,2,4-triazol-3 -yl)isoquinolin
yl)pyrrolidinyl)acrylamide
N ’NH
I >=O
\ N
| H
QMCH.O
STEP A: tert—butyl (1-(3 -cyanoisoquinolinyl)pyrrolidin-3 rbamate
0'33
A mixture of 1-chloroisoquinoline-3 -carbonitrile (438 mg, 2.322 mmol), tert—butyl
pyrrolidin-3 -ylcarbamate (519 mg, 2.79 mmol) and Et3N (0.653 mL, 4.64 mmol) in NMP
(3 mL) was heated at 160°C for 30 minutes in a microwave r. The crude reaction
mixture, which contained the title compound, was used directly in the next step.
STEP B: 3 -aminopyrrolidinyl)isoquinolin-3 -yl)-1H—1,2,4-triazol-5(4H)-one
WO 64558
To a crude reaction mixture containing utyl (1-(3-cyanoisoquinolin
rolidinyl)carbamate (786 mg) was added ethyl hydrazinecarboxylate (242 mg, 2.323
mmol) in NMP (5 mL). The resulting sion was heated at 175°C overnight and was
subsequently , diluted with MeOH, and filtered. The crude product was purified using
mass-triggered HPLC eluting with a nt of 20-45% ACN in water (acid mode). The
product-containing fractions were concentrated to give the title compound (117 mg, 17.0%
over 2 steps). EST—MS m/z [M+H]+ 297.5.
STEP C: N—(l —(3 —(5—oxo-4,5-dihydro-1H—1,2,4-triazol-3 -yl)isoquinolin
yl)pyrrolidinyl)acrylamide
To a solution of tert—butyl (1—(3—(5—oxo—4,5—dihydro—1H—1,2,4-triazol
yl)isoquinolinyl)pyrrolidin-3 -yl)carbamate (80 mg, 0.202 mmol) in DCM (3 mL) was
added 2,6—dimethylpyridine (0.023 mL, 0.202 mmol) at 0°C followed by acryloyl chloride
(0.033 mL, 0.404 mmol). The reaction mixture was stirred at RT overnight and was
subsequently concentrated and partition between EtOAc and water. The organic phase was
dried over Na2S04, concentrated, and filtered. The crude product was purified using mass—
triggered HPLC eluting with a gradient of 15—40% ACN in water (acid mode). The product—
containing fractions were concentrated to give a TFA salt of the title compound (1 mg, 1.4%).
1H NMR (400 MHz, CD3OD) 5 ppm 3.45 (br s, 1 H), 3.61 (br s, 1 H), 3.85 (br s, 1 H), 4.03
(br s, 1 H), 4.13 (br s, 1 H), 4.28 (br s, 1 H), 4.58 (br s, 1 H), 5.67 (br s, 1 H), 6.27 (br s, 2 H),
7.56 (br s, 1 H), 7.66 (br s, 2 H), 7.82 (br s, 1 H), 8.33 (br s, 1 H); EST—MS m/z [M+H]+
1.4.
EXAMPLE 5: (S)(1-((1-acryloylpyrrolidinyl)oxy)isoquinolinyl)-1H—1,2,4-
triazol—5(4H)—one
STEP A: (S)—tert—butyl 3 —((3 -chloroisoquinolinyl)oxy)pyrrolidinecarboxylate
o, 0
"CN CH3
(VQCH3
To rt—butyl 3—hydroxypyrrolidinecarboxylate (1.134 g, 6.06 mmol) in NMP
(10 mL) at 0°C was added NaH (60%) (202 mg, 5.05 mmol). The e was stirred for 5
minutes and 1,3—dichloroisoquinoline (1.000 g, 5.05 mmol) was added. The reaction mixture
was stirred at RT for 5 minutes and then heated at 135°C for 30 minutes in a microwave
reactor. The mixture was diluted with water (400 mL) and extracted with EtOAc (3 x
125 mL). The organic layers were combined, washed with brine, dried over NaZSO4, filtered,
and concentrated in vacuo. The crude product was purified by silica column chromatography
eluting with a nt of 25—50% EtOAc in hexane to give the title compound (5.29 g, 75%).
1H NMR (500 MHz, DMSO—d6) 5 ppm 1.40 (d, J=14.16 Hz, 9 H), 2.12—2.34 (m, 2 H), 3.42—
3.58 (m, 3 H), 3.69 (td, J=12.33, 4.64 Hz, 1 H), 5.63—5.76 (m, 1 H), 7.59 (s, 1 H), 7.64 (ddd,
J=8.30, 7.08, 1.22 Hz, 1 H), 7.81 (td, J=7.57, 1.46 Hz, 1 H), 7.87—7.92 (m, 1 H), 8.11—8.19
(m, 1 H); ESI—MS m/z [M+H—tert—butyl]+ 293.5.
STEP B: rt—butyl 3—((3-cyanoisoquinolinyl)oxy)pyrrolidinecarboxylate
OMEN o
O,QCH3
A solution of (S)-tert-butyl 3-((3 -chloroisoquinolinyl)oxy)pyrrolidine
carboxylate (4.430 g, 12.70 mmol), zinc cyanide (2.980 g, 25.40 mmol) and Pd(PPh3)4
(1.468 g, 1.27 mmol) in DMF (36.3 mL) was heated at 160°C for 20 minutes in a ave
r. The reaction mixture was filtered, diluted with water (400 mL) and extracted with
EtOAc (2 x 100 mL). The organic layers were combined, washed with brine, dried over
NaZSO4, and concentrated in vacuo. The crude product was purified by silica column
chromatography to give the title compound as a white—to—pale—yellow solid (3.570 g, 83%).
1H NMR (500 MHz, DMSO—d6) 5 ppm 1.40 (d, J=13.18 Hz, 9 H), 2.23 (d, J=11.23 Hz, 2 H),
3.42—3.59 (m, 3 H), 3.65—3.75 (m, 1 H), 5.68—5.80 (m, 1 H), 7.82—7.89 (m, 1 H), 7.91—7.98 (m,
1 H), 8.06 (d, J=8.79 Hz, 1 H), 8.21—8.30 (m, 2 H); EST—MS m/z [M+H—tert—butyl]+ 284.6.
STEP C: (S)—tert—butyl 3—((3-(5-oxo-4,5-dihydro-1H—1,2,4-triazolyl)isoquinolin-
1-yl)oxy)pyrrolidinecarboxylate
NrNH
I \F0
\\ N
| H
o,“ o
040%.
rt—Butyl 3—((3—cyanoisoquinolinyl)oxy)pyrrolidinecarboxylate (4.670 g,
13.76 mmol), ethyl hydrazinecarboxylate (7.160 g, 68.80 mmol), DBU (1.037 mL, 6.88
mmol) and NMP (34.6mL) were mixed in a 200 mL high pressure on vessel. The
resulting suspension was heated at 170°C overnight and was then cooled to room
temperature. Crushed ice was added and the mixture was stirred. A yellow precipitate was
collected by vacuum filtration, washed with additional water, and dried in a vacuum oven at
45°C overnight to give the title compound, which was used in the next step without further
purification (5.47 g). 1H NMR (500 MHz, DMSO—dg) 5 ppm 1.33—1.51 (m, 9 H), 2.09—2.38
(m, 2 H), 3.39—3.60 (m, 3 H), 3.75 (dd, J=12.20, 4.88 Hz, 1 H), 6.03—6.22 (m, 1 H), 7.62—7.71
(m, 1 H), 7.81 (td, J=7.57, 1.46 Hz, 1 H), 7.95—8.05 (m, 1 H), 8.11—8.29 (m, 2 H), 11.78 (s, 1
H), 12.03 (br s, 1 H).
STEP D: (S)—3-(1-(pyrrolidinyloxy)isoquinolinyl)-1H—1,2,4-triazol-5(4H)—one
N—NH
I >=O
\ N
| H
01,.[:3NH
To a 200 mL round—bottom flask charged with crude (S)—tert—butyl 3—((3—(5—oxo—4,5—
dihydro-1H—1,2,4-triazol-3 -yl)isoquinolinyl)oxy)pyrrolidinecarboxylate (5.47 g) and
dioxane (27.5 mL) was added 4M HCl in e (13.76 mL, 55.1 mmol). The suspension
was d at RT with ic monitoring by HPLC. Upon completion, the reaction mixture
was trated in vacuo to give an HCl salt of the title compound as a light tan powder that
was dried and used without further purification. EST—MS m/z [M+H]+ 298.6.
STEP E: (S)—3-(1-((1-acryloylpyrrolidinyl)oxy)isoquinolinyl)-1H—1,2,4-
triazol—5(4H)—one
To a suspension of (S)—3 -(1—(pyrrolidin—3 —yloxy)isoquinolin—3—yl)—1H—1,2,4—triazol—
(4I-I)—one hydrochloride (4.29 g) in DCM (48.1 mL) was added 2,6-dimethylpyridine (3.19
mL, 27.4 mmol). Upon cooling the suspension to 0°C, acryloyl chloride (1.3 mL, 15.9 mmol)
was added drop—wise. The reaction mixture was d for 15 minutes and warmed to RT
over a period of 90 minutes. onal 2,6—dimethylpyridine (1.68 mL, 14.43 mmol) and
yl chloride (0.469 mL, 5.77 mmol) were added and the mixture was stirred until HPLC
indicated the on was completed. The product was collected by vacuum filtration,
washed with DCM, and dried to give title compound as a pale yellow solid (1.929 g, 39.9%
over 3 steps). 1H NMR (500 MHz, DMSO—d,) 5 ppm 2.16—2.43 (m, 2 H), 3.58—3.73 (m, 1 H),
3.74—3.91 (m, 2 H), 4.10 (dd, J=11.72, 4.88 Hz, 1 H), .74 (m, 1 H), 6.10-6.25 (m, 2 H),
6.53—6.73 (m, 1 H), 7.62—7.69 (m, 1 H), 7.77—7.85 (m, 1 H), 7.95—8.05 (m, 2 H), 8.17 (d,
J=8.30 Hz, 1 H), 11.78 (s, 1H), 12.03 (d, J=13.18 Hz, 1 H); ESI-MS m/z [M+H]+ 352.6.
EXAMPLE 6: (S)(1-(((1-acryloylpyrrolidinyl)methyl)amino)isoquinolin
yl)—1H—1,2,4—triazol—5(4H)—one
NaNH
I o
STEP A: (S)—tert—butyl 2-(((3 -cyanoisoquinolinyl)amino)methyl)pyrrolidine
carboxylate
A mixture of (S)-tert—butyl 2-(aminomethyl)pyrrolidinecarboxylate (350 mg,
1.750 mmol) in NMP (4 mL) at 0°C was treated with NaH (70.0 mg, 1.750 mmol) and d
for 1 hour. Next, 1—chloroisoquinoline—3—carbonitrile (300 mg, 1.591 mmol) was added and
the reaction mixture was stirred at RT for 15 minutes and then heated at 140°C for 15
minutes in a ave reactor. The crude reaction mixture, which contained the title
compound, was used directly in the next step.
STEP B: (S)—tert—butyl 2—(((3 —(5—oxo—4,5—dihydro— lH—l,2,4—triazol—3—yl)isoquinolin—
l-yl)amino)methyl)pyrrolidine- l -carboxylate
To a crude reaction mixture containing (S)-tert—butyl 2-(((3-cyanoisoquinolin-l-
no)methyl)pyrrolidine-l-carboxylate (0.561 g) was added ethyl hydrazinecarboxylate
(0.663 g, 6.36 mmol). The reaction mixture was heated at 175°C overnight and was
subsequently cooled, diluted with EtOAc, and washed with saturated aqueous NH4Cl. The
aqueous and organic layers were separated. The c layer was concentrated to give the
title compound, which was used directly in the next step.
STEP C: (S)(l-((pyrrolidinylmethyl)amino)isoquinolinyl)- lH—l,2,4-triazol-
(4H)—one
NaNH
I >20
\ N
| H
To crude (S)—tert—butyl—2—(((3 —(5—oxo-4,5-dihydro-lH—l,2,4-triazol-3 -yl)isoquinolin-
l-yl)amino)methyl)pyrrolidine-l-carboxylate (653 mg) suspended in DCM (3 mL) was added
TFA (2 mL). The mixture was stirred for 2 hours and then concentrated. The product was
purified by preparative HPLC g with a gradient of 5-30% ACN in water (acid mode) to
give the title compound.
STEP D: (l-(((l-acryloylpyrrolidinyl)methyl)amino)isoquinolinyl)— lH-
l,2,4—triazol-5(4H)—one
To a on of (S)(l-((pyrrolidinylmethyl)amino)isoquinolinyl)— lH—l,2,4-
triazol-5(4H)-one (50 mg, 0.161 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine
WO 64558
(0.056 mL, 0.483 mmol) at 0°C followed by acryloyl chloride (0.026 mL, 0.322 mmol). The
reaction mixture was stirred at RT for 30 minutes and then concentrated in vacuo. The
residue was taken up in MeOH and the product purified by preparative HPLC eluting with a
nt of 15-40% ACN in water (acid mode) to give a TFA salt of the title compound
(10 mg, 17%). 1H NMR (400 MHz, CD30D) 5 ppm 2.08-2.25 (m, 4 H), 3.53 (dd, J=13.64,
8.34 Hz, 1 H), .71 (m, 1 H), 3.79 (t, J=8.34 Hz, 1 H), 4.12 (dd, J=13.39, 3.79 Hz, 1 H),
4.68 (br s, 1 H), 5.84 (d, J=9.85 Hz, 1 H), 6.50—6.61 (m, 1 H), 6.61-6.72 (m, 1 H), 7.60-7.73
(m, 2 H), 7.78 (t, J=7.20 Hz, 1 H), 7.86 (d, J=7.83 Hz, 1 H), 8.20 (d, J=8.08 Hz, 1 H); ESI—
MS m/z [M+H]+ 365.5.
EXAMPLE 7: (S)(1-((1-acryloylpyrrolidinyl)methoxy)isoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
N—NH
I >20
\ N
STEP A: (S)—tert—butyl 2-(((3 -cyanoisoquinolinyl)oxy)methyl)pyrrolidine
carboxylate
NAG/QCCH3H3
A e of (S)-tert—butyl 2-(hydroxymethyl)pyrrolidinecarboxylate (222 mg,
1.103 mmol) in NMP (4 mL) at 0°C was treated with CszCO3 (345 mg, 1.060 mmol) and
stirred for 1 hour. Next, 1-chloroisoquinoline-3 —carbonitrile (200 mg, 1.060 mmol) was added
and the reaction mixture was stirred at RT for 15 minutes and then heated at 140°C for 15
minutes in a microwave reactor. The crude reaction mixture, which contained the title
compound, was used directly in the next step.
STEP B: (S)—tert—butyl 2-(((3-(5-oxo-4,5-dihydro-1H-1,2,4-triazolyl)isoquinolin-
1-yl)oxy)methyl)pyrrolidinecarboxylate
N—NH
I \FO
\ N
| H
To a crude reaction mixture containing (S)—tert-bulyl 2-(((3-cyanoisoquinolin
yl)oxy)methyl)pyrrolidinecarboxylate (0.562 g) was added NMP (2 mL) followed by ethyl
hydrazinecarboxylate (0.663 g, 6.36 mmol). The reaction mixture was heated at 175°C
overnight and was subsequently cooled, d with EtOAc, and washed with brine. The
organic layer was separated, dried over NaZSO4, and concentrated to give the title compound,
which was used directly in the next step.
STEP C: (S)(1-(pyrrolidinylmethoxy)isoquinolinyl)-1H-1,2,4-triazol-
(4H)—one
NrNH
[\F0
To crude (S)—tert—butyl 2—(((3 —(5—oxo—4,5-dihydro-1H—1,2,4-triazol-3 -yl)isoquinolin-
1-yl)oxy)methyl)pyrrolidinecarboxylate ded in DCM (1 mL) was added TFA
(1 mL). The mixture was stirred for 10 s and then concentrated. The product was
purified by preparative HPLC eluting with a gradient of 15-22% ACN in water (acid mode)
to give the title compound.
STEP D: (1-((1-acryloylpyrrolidinyl)methoxy)isoquinolinyl)-1H-1,2,4-
triazol—5(4H)—one
To a solution of (S)(1-(pyrrolidinylmethoxy)isoquinolinyl)-1H—1,2,4-
triazol-5(4H)-one (50 mg, 0.161 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine
(0.056 mL, 0.482 mmol) at 0°C followed by acryloyl chloride (0.026 mL, 0.321 mmol). The
reaction e was stirred at RT for 30 minutes and then concentrated. The residue was
taken up in MeOH and water and the product purified by preparative HPLC eluting with a
gradient of 30-50% ACN in water (acid mode) to give a TFA salt of the title compound
(14 mg, 24%), ESI—MS m/z [M+H]+ 366.5.
EXAMPLE 8: (S)(1-((1-acryloylpyrrolidinyl)amino)isoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
HN,“C
’CHZ
To a solution of (S)(1-(pyrrolidinylamino)isoquinolinyl)—1H—1,2,4-triazol-
(4H)—one (8 mg, 0.027 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine (9.40 ”L,
0.081 mmol) at 0°C followed by acryloyl chloride (4.39 uL, 0.054 mmol). The mixture was
d for 30 minutes and trated. The residue was dispersed in water and the product
purified by preparative HPLC g with a gradient of 5-30% ACN in water (acid mode) to
give a TFA salt of the title compound (2 mg, 21%). ESI-MS m/z [M+H]+ 351.4.
EXAMPLE 9: (R)(1-((1-acryloylpyrrolidinyl)methoxy)isoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
NrNH
I o
: o
STEP A: (R)—tert—butyl 2-(((3 -cyanoisoquinolinyl)oxy)methyl)pyrrolidine
carboxylate
NA CH3
C oJ<CH3CH3
A mixture of (R)-tert—butyl 2-(hydroxymethyl)pyrrolidinecarboxylate (444 mg,
2.206 mmol) and CsZCO3 (719 mg, 2.206 mmol) in NMP (4mL) were stirred at 0°C for 1
hour. Next, 1-chloroisoquinoline-3 -carbonitrile (400 mg, 2.121 mmol) was added and the
reaction mixture was heated at 140°C for 15 minutes in a microwave reactor. Additional
CszCO3 (719 mg, 2.206 mmol) was added. The reaction mixture heated at 140°C for 1 hour
to give the title compound, which was used directly in the next step.
STEP B: (R)—tert—butyl 2—(((3—(5—oxo—4,5—dihydro—1H—1,2,4—triazol—3—yl)isoquinolin—
1-yl)oxy)methyl)pyrrolidinecarboxylate
NaNH
To a crude reaction mixture containing (R)-tert-butyl 2-(((3-cyanoisoquinolin
yl)oxy)methyl)pyrrolidinecarboxylate (0.749 g) was added NMP (2 mL) and ethyl
hydrazinecarboxylate (0.883 g, 8.48 mmol). The reaction mixture was heated at 175°C
overnight and was subsequently cooled, diluted with EtOAc, and washed with saturated
aqueous NH4C1 followed by water. The organic layer was separated and concentrated to give
the title compound, which was used without r purification.
STEP C: (R)(1-(pyrrolidinylmethoxy)isoquinolinyl)-1H—1,2,4-triazol-
(4H)—one
NaNH
I fig
\ N
| H
<::”H
To crude rt—butyl 2—(((3—(5-oxo-4,5-dihydro-1H-1,2,4-triazolyl)isoquinolin-
1-yl)oxy)methyl)pyrrolidinecarboxylate was added DCM (3 mL) followed by TFA (2
mL). The mixture was stirred at RT for 2 hours and the t was removed in vacuo. The
crude product was d by preparative HPLC eluting with a gradient of 10—25% ACN in
water (acid mode) to give the title nd (10 mg, 1.5% over 3 steps). EST—MS m/z
[M+H]+ 312.4.
STEP D: (R)(1-((1-acryloylpyrrolidinyl)methoxy)isoquinolinyl)-1H—1,2,4-
triazol—5(4H)—one
To a solution of (R)(1-(pyrrolidinylmethoxy)isoquinolinyl)—1H—1,2,4-
triazol-5(4H)-one (10 mg, 0.032 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine
(0.011 mL, 0.096 mmol) at 0°C followed by yl chloride (5.22 uL, 0.064 mmol). The
reaction mixture was stirred for 30 minutes. The solvent was subsequently removed in vacuo
and the residue was taken up in MeOH and the product purified by preparative HPLC eluting
with a gradient of 35-60% ACN in water (acid mode) to give a TFA salt of the title
compound (1.8 mg, 15%). EST—MS m/z [M+H]+ 366.4.
EXAMPLE 10: (S)—3-(1-((1-methacryloylpyrrolidinyl)amino)isoquinolinyl)-
1H—1,2,4-triazol—5(4H)—one
To a solution of (1-(pyrrolidinylamino)isoquinolinyl)—1H—1,2,4-triazol-
(4I-I)—one (13 mg, 0.044 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine (0.015 mL,
0.132 mmol) at 0°C followed by methacryloyl chloride (6.88 mg, 0.066 mmol). The reaction
mixture was stirred at RT overnight and was subsequently partitioned between water and
DCM. The organic phase was separated and concentrated in vacuo. The crude t was
d by preparative HPLC eluting with a gradient of 20-45% ACN in water (acid mode)
to give a TFA salt of the title nd (0.5 mg, 2%). ESI—MS m/z [M+H]+ 365.4.
EXAMPLE 11: (S)—3-(1-((1-acryloylpyrrolidinyl)(methyl)amino)isoquinolin
yl)—1H—1,2,4—triazol—5(4H)—one
,N, :
3 “C /<’(:
STEP A: (S)—tert—butyl 3 —((3 -cyanoisoquinolinyl)(methyl)amino)pyrrolidine
carboxylate
,N, 0
H3C "CN CH3
O,QCH3
To (S)—tert—butyl 3—((3 —cyanoisoquinolin-l-yl)amino)pyrrolidine-l-carboxylate
(235 mg, 0.694 mmol) in DMF (6 mL) was added NaH (27.8 mg, 0.694 mmol) and methyl
iodide (0.052 mL, 0.833 mmol) at 0°C. The reaction mixture was allowed to warm to RT
with stirring over a 2 hour period and was subsequently diluted with EtOAc and washed with
s NH4C1, water, and brine. The organic layer was dried over NaZSO4, filtered, and
concentrated. Toluene (2 x 5 mL) was added and removed in vacuo to give the title
compound as a crude residue.
STEP B: rt—butyl 3-(methyl(3 -(5-oxo-4,5-dihydro- lH—l,2,4-triazol
quinolin- l -yl)amino)pyrrolidine- l xylate
h; N\FO’NH
| H
,N,, O
H3C 'CN CH3
0+CH3
To crude (S)—tert—butyl 3—((3—cyanoisoquinolin-l-yl)(methyl)amino)pyrrolidine—l—
carboxylate (0.245 g) in NMP (1 mL) was added ethyl hydrazinecarboxylate (0.289 g, 2.78
mmol). The reaction mixture was heated at 175°C for 2 days and was subsequently cooled,
diluted with EtOAc, and washed with aqueous NH4C1. The organic phase was separated,
dried, and concentrated. The crude product was purified by HPLC to give the title compound
(91 mg, 32% over 2 steps).
STEP C: (S)(l-(methyl(pyrrolidinyl)amino)isoquinolinyl)- lH—l,2,4-triazol-
(4H)—one
To (S)—tert—butyl 3—(methyl(3—(5-oxo-4,5-dihydro-1H-1,2,4-triazolyl)isoquinolin-
1-yl)amino)pyrrolidinecarboxylate (91 mg, 0.222 mmol) in DCM was added TFA (1.5
mL). After 2 hours the solvent was removed in vacuo to give the title compound, which was
used without further purification.
STEP D: (S)—3-(1-((1-acryloylpyrrolidinyl)(methyl)amino)isoquinolinyl)- 1H-
1,2,4—triazol-5(4H)—one
To a solution of crude (S)—3-(1-(methyl(pyrrolidin—3-yl)amino)isoquinolin—3 —yl)—1H—
1,2,4-triazol-5(4H)—one (69 mg) in DCM (10 mL) was added methylpyridine (0.077
mL, 0.667 mmol) at 0°C followed by acryloyl de (0.023 mL, 0.278 mmol). The
reaction mixture was stirred at RT overnight and then quenched with water. The solvent was
removed in vacuo and the crude product was d by preparative HPLC to give a TFA salt
of the title compound (19 mg, 24% over 2 steps). 1H NMR (400 MHz, DMSO—dg) (rotamers
were observed) 5 ppm .20 (m, 1 H), 2.20—2.40 (m, 1 H), 3.06 (s, 1.5H), 3.04 (s, 1.5H),
3.15—3.25 (m, 0.5 H), 3.30—3.47 (m, 1 H), 3.50-3.64 (m, 0.5 H), 3.65—3.75 (m, 0.5 H), 3.80—
3.90 (m, 0.5 H), 3.98-4.06 (m 0.5 H), 4.22 (dd, J=9.85, 7.58 Hz, 0.5 H), 4.63-4.92 (m, 1 H),
.66 (ddd, J=19.58, 10.23, 2.53 Hz, 1 H), 6.15 (ddd, J=16.67, 5.81, 2.53 Hz, 1 H), 6.49-6.72
(m, 1 H), 7.47-7.68 (m, 1 H), 7.68—7.81 (m, 1 H), 7.89—8.03 (m, 2 H), 8.16 (d, J=8.59 Hz, 1
H), 11.75 (s, 1 H), 11.93 (d, J=3.79 Hz, 1 H); EST—MS m/z [M+H]+ 365.4.
EXAMPLE 12: (S)—3-(1-((1-methacryloylpyrrolidinyl)oxy)isoquinolinyl)- 1H-
1,2,4—triazol-5(4H)—one
To a solution of (S)—3-(1-(pyrrolidinyloxy)isoquinolinyl)-1H—1,2,4-triazol-
(4H)—one (17 mg, 0.057 mmol) in NMP (3 mL) was added 2,6—dimethylpyridine (8.97 uL,
0.077 mmol) at 0°C followed by methacryloyl chloride (10.57 uL, 0.108 mmol). The reaction
mixture was stirred at RT overnight and was subsequently d with MeOH, and filtered.
The crude product was purified by riggered HPLC eluting with a gradient of 25—50%
ACN in water (acid mode). The product-containing fractions were concentrated to give a
TFA salt ofthe title nd (10 mg, 35%). 1H NMR (400 MHz, CD3OD) 5 ppm 1.15-1.24
WO 64558
(m, 4 H), .83 (m, 3 H), 3.84—3.98 (m, 1 H), 5.08 (s, 1 H), 5.19 (d, J=5.81Hz, 1 H), 5.28
(s, 1 H), 6.02 (d, J=15.16 Hz, 1 H), 7.52—7.59 (m, 1 H), 7.68 (td, J=7.58, 1.26 Hz, 1 H), 7.78—
7.93 (m, 2 H), 8.06—8.20 (m, 1 H); EST—MS m/z [M+H]+ 366.4.
EXAMPLE 13: (S)—3-(1-(((1-acryloylpyrrolidinyl)oxy)methyl)isoquinolinyl)-
1H—1,2,4-triazol—5(4H)—one
N—NH
I >20
\ N
| H
[031 1] STEP A: (S)—tert—butyl 3 -((3 -cyanoisoquinolinyl)methoxy)pyrrolidine
carboxylate
0 HM?
To 1-(bromomethyl)isoquinoline-3 -carbonitrile (0.150 g, 0.607 mmol) in DCM (6
mL) was added (S)—tert—butyl 3—hydroxypyrrolidine—1—carboxylate (0.114 g, 0.607 mmol) and
AgOTf (0.016 g, 0.061 mmol). The sion was stirred for 15 minutes at RT and then
heated at 45°C overnight. The reaction mixture was subsequently cooled, absorbed onto silica
and eluted with a gradient of 0-5% MeOH in DCM. The enriched fractions were concentrated
in vacuo to give the title compound as a yellow residue which was used without further
ation (54.6 mg, 25.4%). EST-MS m/z [M+H-tert butyl]+ 298.6.
STEP B: (S)(1-((pyrrolidinyloxy)methyl)isoquinolinyl)—1H—1,2,4-triazol-
(4H)—one
NrNH
I fio
\ N
| H
A mixture of (S)-tert—butyl 3-((3 -cyanoisoquinolinyl)methoxy)pyrrolidine
carboxylate (54.6 mg, 0.154 mmol) in NMP (0.4 mL), ethyl hydrazinecarboxylate (80 mg,
0.772 mmol) and DBU (0.012 mL, 0.077 mmol) was heated at 170°C overnight and then
filtered. The product in the filtrate was purified by mass-triggered HPLC eluting with a
gradient of 35—60% ACN in water (acid mode). The product-containing ons were
concentrated in vacuo, d with neat TFA (1 mL) for 5 minutes, and again concentrated in
vacuo. The concentrate was dispersed in ACN/water (1: 1) and lyophilized to give the title
compound (7.5 mg, 16%). EST—MS m/z [M+H]+ 312.6.
STEP C: (S)(1-(((1-acryloylpyrrolidinyl)oxy)methyl)isoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
A suspension of (S)—3—(1—((pyrrolidin—3—yloxy)methyl)isoquinolin—3 —yl)— 1H—1,2,4—
triazol-5(4H)-one (7.5 mg, 0.024 mmol) in DCM (134 uL) and 2,6-dimethylpyridine (5.61
uL, 0.048 mmol) was cooled to 0°C. Acryloyl chloride (3.91 uL, 0.048 mmol) was added
drop—wise. The reaction mixture was slowly warmed to RT overnight with stirring. The
on mixture was subsequently concentrated in vacuo, reconstituted in DMSO, and the
product isolated by mass-triggered HPLC eluting with a gradient of 20-35% ACN in water
(acid mode). The t—containing ons were combined, concentrated in vacuo, and
lyophilized to give a TFA salt of the title compound (0.9 mg, 10%). 1H NMR (500 MHz,
CD3OD) 5 ppm 1.22—1.39 (m, 2 H), 1.96—2.31 (m, 1 H), 3.51 (d, J=9.28 Hz, 1 H), 3.57—3.88
(m, 2 H), 5.15—5.29 (m, 3 H), 5.70 (ddd, J=16.96, 10.62, 1.71 Hz, 1 H), 6.23 (td, J=17.09,
1.95 Hz, 1 H), 6.45—6.63 (m, 1 H), 7.74 (d, J=7.32 Hz, 1 H), 7.81 (t, J=7.57 Hz, 1 H), 7.85—
7.96 (m, 1 H), 7.97—8.12 (m, 1 H), .47 (m, 3 H); ESI—MS m/z [M+H]+ 366.5.
EXAMPLE 14: (S,E)(1-((1-(4-(dimethylamino)butenoyl)pyrrolidin
yl)oxy)isoquinolin-3 -yl)-2,4-dihydro-3H—1,2,4-triazol-3 -one
I \F0
\ N
| H
o,,, O
3 N
[031 8] STEP A: rt—butyl 3 —((3 -cyanoisoquinolinyl)oxy)pyrrolidinecarboxylate
To (S)—tert—butyl 3—hydroxypyrrolidinecarboxylate (1.906 g, 10.18 mmol) in
NMP (10 mL) at 0°C was added NaH (0.339 g, 8.48 mmol). The mixture was stirred for 5
minutes and then roisoquinolinecarbonitrile (1.6 g, 8.48 mmol) was added. The
reaction mixture was heated at 160°C for 30 minutes in a microwave reactor and was
subsequently diluted with water and extracted with EtOAc (2 x). The organic phase was dried
over NaZSO4 and concentrated. The crude product was purified by silica column
chromatography eluting with a gradient of 0-75% EtOAc in hexane to give the title
compound as a yellow solid (1.61 g, 55.9%). EST—MS m/z [M+H—tert—butyl]+ 284.2.
STEP B: (S)—tert—butyl 3—((3—(5-oxo-4,5-dihydro-1H-1,2,4-triazolyl)isoquinolin-
1-yl)oxy)pyrrolidinecarboxylate
A mixture of (S)-tert—butyl 3-((3 -cyanoisoquinolinyl)oxy)pyrrolidine
carboxylate (1.61 g, 4.74 mmol) and ethyl hydrazinecarboxylate (1.482 g, 14.23 mmol) in
NMP (8 mL) was heated at 160°C overnight. The reaction mixture was diluted with EtOAc
and washed with water (2 x). The aqueous layer was back-extracted with EtOAc. The organic
layers were combined, dried over MgSO4, d, and evaporated in vacuo to give the title
compound as a pale oil, which was used without further purification. EST—MS m/z [M+H—tert—
butyl]+ 342.3.
STEP C: (S)(1-(pyrrolidinyloxy)isoquinolinyl)-1H-1,2,4-triazol-5(4H)-one
N’NH
l fio
\ N
| H
o,,,CNH
Crude (S)—tert—butyl—3—((3 —(5—oxo—4,5—dihydro-1H-1,2,4-triazolyl)isoquinolin
yl)oxy)-pyrrolidinecarboxylate (1 g, 1.258 mmol) was dissolved in a on of 4N HCl in
e (0.315 mL, 1.258 mmol) and stirred at RT for 30 minutes. The solvent was removed
in vacuo and the resulting oil was dried under high vacuum to give the title nd, which
used without further purification. ESI-MS m/z [M+H]+ 298.3.
STEP D: (S,E)—5-(1-((1-(4-(dimethylamino)butenoyl)pyrrolidin
yl)oxy)isoquinolin-3 -yl)-2,4-dihydro-3H—1,2,4-triazol-3 -one
To a mixture of (E)(dimethylamino)butenoic acid hydrochloride (23.40 mg,
0.141 mmol), (S)—3-(1-(pyrrolidinyloxy)isoquinolinyl)-1H—1,2,4-triazol-5(4H)-one (100
mg, 0.135 mmol) and HATU (61.4 mg, 0.161 mmol) in DCM (3 mL) was added Hiinig’s
Base (0.070 mL, 0.404 mmol). The reaction mixture was stirred at RT overnight and was
subsequently diluted with EtOAc and washed with water. The product ed in the
aqueous layer, which was concentrated to afford a residue. The crude product was purified by
ative HPLC eluting with a gradient of 25—50% ACN in water (basic mode). The solvent
was removed by lyophilization to give the title compound (26 mg, 47%). 1H NMR (400 MHz,
CD3OD) 5 ppm 2.33—2.44 (m, 1 H), 2.44—2.53 (m, 1 H), 2.55 (s, 3 H), 2.60 (s, 3 H), 3.53 (d,
J=6.06 Hz, 1 H), 3.59 (d, J=6.57 Hz, 1 H), 3.72—3.91 (m, 1 H), 3.91—4.00 (m, 2 H), .18
(m, 1H), 6.15 (d, J=18.44 Hz, 1 H), 6.65—6.89 (m, 2 H), 7.58—7.69 (m, 1 H), 7.73—7.83 (m, 1
H), 7.90 (d, J=3.03 Hz, 1 H), 7.96 (d, J=5.31 Hz, 1 H), 8.21 (d, J=7.33 Hz, 1 H); ESI—MS
m/z [M+H]+ 409.5.
EXAMPLE 15: (S,E)(1-((1-(butenoyl)pyrrolidinyl)amino)isoquinolin
yl)-1H-1,2,4-triazol-5(4H)—one
To a solution of (S)(1-(pyrrolidinylamino)isoquinolinyl)—1H—1,2,4-triazol-
(4H)—one (70 mg, 0.236 mmol) in DCM (10 mL) was added 2,6—dimethy1pyridine (0.082
mL, 0.709 mmol) at 0°C ed by (E)—but—2—enoyl chloride (0.027 mL, 0.283 mmol). The
on mixture was stirred at RT ght. The reaction was subsequently quenched with
water and the solvent was removed in vacuo to afford a residue. The crude product was
ed by preparative HPLC eluting with a gradient of 20-45% ACN in water (acid mode)
to give a TFA salt of the title compound (10 mg, 12%). 1H NMR (400 MHz, DMSO-d6)
(rotamers were observed) 5 ppm 1.82 (dd, J=6.82, 1.52 Hz, 1.5 H), 1.86 (dd, J=6.82, 1.52 Hz,
1.5 H), 1.93—2.14 (m, 1 H), 2.15—2.39 (m, 1 H), 3.22—3.77 (m, 1 H), 3.75—3.95 (m, 2.5 H), 4.13
(dd, J=9.98, 7.20 Hz, 0.5 H), 5.10—5.34 (m, 1 H), 6.22—6.41 (m, 1 H), 6.64—6.78 (m, 1 H),
7.48—7.63 (m, 3 H), 7.63—7.73 (m, 1 H), 7.83 (dd, J=7.83, 3.03 Hz, 1 H), 8.34 (d, J=8.34 Hz, 1
H), 11.67 (d, J=1.77 Hz, 1 H), 11.81 (d, J=3.28 Hz, 1 H); EST—MS m/z [M+H]+ 365.4.
E 16: (S)—3-(8-((1-acryloylpyrrolidinyl)oxy)-1,7-naphthyridinyl)-
1H—1,2,4-triazol—5(4H)—one
NaNH
[>20
// N
\N\ INH
o,, O
'CN’<’
’CHZ
STEP A: (S)—tert—butyl 3 -((6-bromo- 1 ,7-naphthyridinyl)oxy)pyrrolidine
carboxylate
//|Br
\ \\ N
’0 Zara.
To (S)—tert—butyl 3—hydroxypyrrolidine—1—carboxy1ate (890 mg, 4.75 mmol) in N-
methyl-2—pyrrolidinone (16 mL) at 0°C was added NaH (60%) (158.4 mg, 3.96 mmol). The
e was stirred for 5 minutes. Next, 1,3—dibromoisoquinoline (1139 mg, 3.96 mmol) was
added and the reaction mixture was stirred at RT for 5 minutes and then heated in a
microwave reactor at 135°C for 30 minutes and at 160°C at for another 30 s. The
mixture was subsequently diluted with water and extracted with EtOAc (2 x). The organic
phase was separated, dried over NaZSO4, and trated. The crude product was purified
by silica column chromatography g with a gradient of 0-75% EtOAc in hexane over a
45 minute period to give the title compound (1.3 g, 70% from two batches).
STEP B: (S)—tert—butyl 3-((6-cyano-1,7-naphthyridinyl)oxy)pyrrolidine
carboxylate
/ /|
o,,, 0
Chkq CH3
o’eCHg,
A solution of (S)—tert—butyl 3-((6-bromo-1,7-naphthyridinyl)oxy)pyrrolidine
carboxylate (1400 mg, 3.55 mmol), zinc cyanide (834 mg, 7.1 mmol) and N1 ,N1,N2,N2—
tetramethylethane-1,2-diamine (0.106 mL, 0.71 mmol) in DMSO (9 mL) was degassed with
nitrogen for 5 minutes. Xantphos (206 mg, 0.355 mmol) and Pd2(dba)3 (325 mg, 0.355 mmol)
were added and the mixture was heated in a microwave reactor at 160°C for 15 minutes. The
reaction e was diluted with EtOAc and washed with water (2 x). The c layer was
separated and concentrated in vacuo. The crude product was purified by silica column
chromatography to give the title compound as a yellow solid (181 mg, 15%).
STEP C: (S)—tert—butyl 3—((6—(5—oxo-4,5-dihydro- 1H-1,2,4-triazolyl)-1,7-
naphthyridinyl)oxy)pyrrolidinecarboxylate
N—NH
I \F0
/ / N
\ \ |N
0,, 0
'CN CH3
(VQCH3
A suspension of (S)—tert—butyl 3—((6-cyano-1,7-naphthyridinyl)oxy)pyrrolidine
carboxylate (181 mg, 0.532 mmol) and ethyl hydrazinecarboxylate (277 mg, 2.66 mmol) in
NMP (5mL) was heated at 175°C overnight. The on mixture was subsequently diluted
with MeOH and filtered. The crude product was purified using riggered HPLC eluting
with a gradient of 25-50% ACN in water (acid mode). The product-containing fractions were
collected and concentrated to give a TFA salt of the title compound as a yellow film (100 mg,
STEP D: (S)—3—(8-(pyrrolidinyloxy)-1,7-naphthyridinyl)-1H-1,2,4-triazol-
(4H)—one
N/NH
I \F0
| H
\ \ N
o,,,CNH
To (S)—tert—butyl 3—((6—(5—oxo—4,5-dihydro-1H—l,2,4-triazol-3 -yl)-1,7-naphthyridin-
8-yl)oxy)pyrrolidinecarboxylate (100 mg, 0.251 mmol) suspended in dioxane (10 mL) was
added 4M HCl in dioxane (0.251 mL, 1.004 mmol). The reaction mixture was stirred for 30
minutes and concentrated to give an HCl salt of the title nd (74 mg, 88%). This
material was used directly in next step.
STEP E: (S)—3—(8—((1-acryloylpyrrolidinyl)oxy)-1,7-naphthyridinyl)-1H—1,2,4-
triazol—5(4H)—one
To a solution of (S)—3-(8-(pyrrolidinyloxy)-1,7-naphthyridinyl)-1H—1,2,4-
triazol-5(4H)-one (74.0 mg, 0.248 mmol) in DMSO (3 mL) was added 2,6-dimethylpyridine
(0.030 mL, 0.258 mmol) at 0°C followed by acryloyl chloride (65.4 mg, 0.724 mmol). The
reaction mixture was stirred at RT overnight and was subsequently diluted with MeOH and
d through a PTFE membrane. The product, which was contained in the filtrate, was
isolated using mass-triggered HPLC eluting with a gradient of 15-30% ACN in water (acid
mode). The product—containing fractions were concentrated to give a TFA salt of the title
compound (14 mg, 12% from two batches). 1H NMR (400 MHz, CD3OD) 5 ppm 2.34—2.58
(m, 2 H), 3.76—3.99 (m, 2 H), 3.99—4.11 (m, 1 H), 4.16 (dd, J=12.25, 4.42 Hz, 1 H), 5.64—5.85
(m, 1 H), 6.19 (br s, 1 H), 6.29 (ddd, J=16.80, 3.66, 2.02 Hz, 1 H), .76 (m, 1 H), 7.82
(dd, J=8.21, 4.17 Hz, 1 H), 8.00—8.15 (m, 1 H), 8.44 (d, J=8.59 Hz, 1 H), 8.95 (br s, 1 H);
ESI-MS m/z [M+H]+ 353.3.
E 17: (S)—3-(8-((1-acryloylpyrrolidinyl)amino)-1,7-naphthyridinyl)-
1H—1,2,4-triazol—5(4H)—one
NaNH
I)to
/ / N
\ \\ N
HN,,. 0
STEP A: (S)—tert—butyl 3 -((6-bromo-1,7-naphthyridinyl)amino)pyrrolidine
ylate
HN,, 0
CNN4 CH3
(VQCH3
To (S)-tert—butyl 3-aminopyrrolidinecarboxylate (0.776 g, 4.17 mmol) in N-
methylpyrrolidinone (12 mL) at 0°C was added NaH (0.139 g, 3.47 mmol). The mixture
was stirred for 5 minutes. Next, 6,8—dibromo—1,7—naphthyridine (1 g, 3.47 mmol) was added
and the reaction mixture was stirred at RT for 5 minutes and then heated at 135°C for 30
minutes in a microwave reactor. The reaction mixture was diluted with water and extracted
with EtOAc (2 x). The organic layers were combined, dried over , and concentrated.
The crude product was purified using silica column chromatography eluting with a nt
of 0-75% EtOAc in hexane over a 45 minute period to give the title compound as a yellow
solid (1.3 g, 95%).
STEP B: (S)-tert—butyl 3-((6-cyano-1,7-naphthyridinyl)amino)pyrrolidine
carboxylate
/ /|
HN, 0
’CN CH3
O,QCH3
A solution of rt—butyl 3-((6-bromo-1,7-naphthyridinyl)amino)pyrrolidine
carboxylate (1141 mg, 2.9 mmol), zinc cyanide (681 mg, 5.80 mmol) and N1,N1,N2,N2—
tetramethylethane-l,2-diamine (87 ”L, 0.580 mmol) in NMP was degassed with nitrogen for
minutes. Xantphos (168 mg, 0.290 mmol) and szdba3 (266 mg, 0.290 mmol) were added
and the mixture was heated in a microwave reactor at 160°C for 10 minutes. The reaction
mixture was subsequently diluted with EtOAc. The organic phase was washed with water
(2 x), dried, and concentrated in vacuo. The crude product was purified by preparative HPLC
eluting with a gradient of 45—70% ACN in water (acid mode) to give the title compound as a
yellow solid (175 mg, .
STEP C: (S)—tert—butyl 3—((6-(5-oxo-4,5-dihydro-1H-1,2,4-triazolyl)-1,7-
naphthyridinyl)amino)pyrrolidinecarboxylate
NrNH
I \FQ
/ / N
| H
\ \
HN,,‘ 0
C CH
N 3
046%,
To (S)—tert—butyl 3—((6-cyano-1,7-naphthyridinyl)amino)pyrrolidine
carboxylate (210 mg, 0.619 mmol) in NMP (1.5 mL) was added ethyl hydrazinecarboxylate
(258 mg, 2.475 mmol). The reaction mixture was heated at 175°C for 2 days and was then
cooled, diluted with EtOAc, and washed with s NH4Cl. The organic phase was dried
and concentrated. The crude product was purified by ative HPLC eluting with a
gradient of 35—60% ACN in water (acid mode) to give the title compound (80 mg, 33%).
STEP D: (S)(8-(pyrrolidinylamino)-1,7-naphthyridinyl)-1H-1,2,4-triazol-
(4H)—one
HN,,'CNH
A mixture of (S)—tert—butyl (5-oxo-4,5-dihydro-1H-1,2,4-triazolyl)-1,7-
naphthyridinyl)amino)pyrrolidinecarboxylate (80 mg, 0.201 mmol) in DCM (3 mL)
was treated with TFA (1.5 mL) for 2 hours. The solvent was removed in vacuo to give the
title compound, which was used in the next step without further purification.
STEP E: (S)—3-(8-((1-acryloylpyrrolidinyl)amino)-1,7-naphthyridinyl)- 1H-
1,2,4—triazol-5(4H)—one
To a on of (S)(8-(pyrrolidinylamino)-1,7-naphthyridinyl)-1H—1,2,4-
l-5(4H)-one (36 mg, 0.121 mmol) in DCM (3 mL) was added 2,6-dimethylpyridine
(0.042 mL, 0.363 mmol) at 0°C followed by acryloyl chloride (0.015 mL, 0.182 mmol). The
reaction mixture was stirred at RT overnight. The reaction was subsequently quenched with
water and the mixture was concentrated in vacuo. The crude t was purified by
preparative HPLC eluting with a gradient of 15-40% ACN in water (acid mode) to give a
TFA salt of the title compound (16 mg, 38%). 1H NMR (400 MHz, DMSO-d6) (rotamers
were observed) 5 ppm 1.94—2.30 (m, 2 H), 3.20—3.50 (m, 1.5 H), 3.51—3.67 (m, 1 H), 3.72—
3.91 (m, 1 H), 4.05 (dd, J=9.85, 7.07 Hz, 0.5 H), 4.99—5.25 (m, 1 H), 5.60 (ddd, J=16.11,
.29, 2.40 Hz, 1 H), 6.00—6.16 (m, 1 H), 6.43—6.65 (m, 1 H), 7.47 (d, J=3.79 Hz, 1 H), 7.65
(ddd, J=8.27, 4.23, 1.39 Hz, 1 H), 7.73—7.88 (m, 1 H), 8.23 (dt, J=8.34, 1.77 Hz, 1 H), 8.74
(dt, J=4.29, 1.52 Hz, 1 H), 11.66 (s, 1 H), 11.83 (s, 1 H); EST—MS m/z [M+H]+ 352.4.
EXAMPLE 18: (S)—3-(1-((1-acryloylpyrrolidinyl)oxy)fluoroisoquinolinyl)-
1H—l,2,4—triazol—5(4H)—one
NaNH
I>=O
0,, 0
CNJL’CHZ
STEP A: (S)—tert—butyl 3 —((3 —chlorofluoroisoquinolinyl)oxy)pyrrolidine
carboxylate
o, O
C 4O+CH3CHN 3
To a solution of (S)—tert—butyl 3—hydroxypyrrolidinecarboxylate (1.56 g,
8.3 mmol) in THF (20 mL) was added NaH (0.33 g, 8.3 mmol) under nitrogen at 0°C. The
mixture was warmed to RT over a 30 minute period and 1,3—dichloro—7—fluoroisoquinoline
(0.9 g, 4.17mmol) was added. The resulting mixture was stirred for 10 hours at RT. The
mixture was subsequently diluted with EtOAc (100 mL), quenched with saturated aqueous
NH4C1 (100 mL), and ted with EtOAc (3 x 100 mL). The combined organic layers were
dried over NaZSO4 and concentrated. The crude t was d by column
chromatography eluting with petroleum ether and ethyl acetate (PE/EtOAc=50:1-10:1
gradient) to give the title compound (1.1 g, 72%). 1H NMR (400 MHz, DMSO—dg) 5 ppm
.98 (m, 1H), 7.82-7.80 (m, 2H), 7.62 (s, 1H), 5.67—5.63 (d, J=16Hz,1H), .66 (m,
1H), 3.53-3.487 (m, 3H), 2.30-2.22 (m, 2H), .39 (d, J=10.8Hz,2H).
WO 64558
STEP B: (S)—tert—butyl 3 —((3 —cyano—7—fluoroisoquinolin- l -yl)oxy)pyrrolidine- l -
carboxylate
CIACNj CH3
o/QCHs
To a on of (S)—tert—butyl 3—((3—chloro—7—fluoroisoquinolin—l—
yl)oxy)pyrrolidine-l-carboxylate (l g, 2.73 mmol) in DMF (10 mL) was added Zn(CN)2
(0.64 g, 5.46 mmol) and Pd(PPh3)4 (0.3 16 g, 0.273 mmol) under N2. The mixture was heated
at 160°C for 30 minutes in a microwave r and was uently partition between
EtOAc (50 mL) and water (50 mL). The aqueous phase was back-extracted with EtOAc (3 x
50 mL) and the organic layers were combined and washed with saturated aqueous NaCl (3 x
50 mL) and concentrated in vacuo. The crude t was purified by column
chromatography eluting with petroleum ether and ethyl acetate (PE/EtOAc=20: l-5:l
gradient) to give the title compound (0.65 g, 65%). 1H NMR (400 MHz, DMSO—dg) 5 ppm
8.28 (s, 1H), .16 (dd, J1=5.2 Hz, J2=3.6 Hz, 1H), 7.97—7.95 (m, 2H), 5.73—5.69 (d, J=l6
Hz, 1H), 3.71—3.67 (m, 1H), 3.58—3.50 (m, 3H), 2.25—2.24 (d, J=4 Hz, 2H), 1.42—1.39 (d,
J=l2 Hz, 9H).
STEP C: (S)—tert—butyl 3—((7—fluoro(hydrazinyl(imino)methyl)isoquinolin-l-
yl)oxy)pyrrolidine- l -carboxylate
O/I.CN 0
O’QCHs
To a mixture of (S)—tert—butyl 3—((3 —cyanofluoroisoquinolin-l-yl)oxy)pyrrolidine-
l-carboxylate (400 mg, 1.12 mmol) in MeOH (5 mL) was added NHZNHz-HZO (5 mL). The
reaction mixture was heated to reflux for 2 hours. The solvent was subsequently removed to
give the title compound as a white solid, which was used in next step without purification
(450 mg, 100%). ESI—MS m/z [M+H]+ 390.
STEP D: (S)—tert—butyl 3—((7—fluoro—3—(5-oxo-4,5-dihydro- lH—l,2,4-triazol
yl)isoquinolin- l -yl)oxy)pyrrolidine— l -carboxylate
\ N
| H
0’ o
'CN CH3
O’eCHs
To a solution of rt—butyl 3—((7-fluoro(hydrazinyl(imino)methyl)isoquinolin-
1-yl)oxy)pyrrolidinecarboxylate (0.45 g, 1.12 mmol) in dioxane (10 mL) was added CD1
(0.72 g, 2.24 mmol) under N2. The mixture was heated to reflux for 2 hours and was
subsequently concentrated in vacuo. The crude product was d by preparative HPLC to
give the title compound (70 mg, 40%). EST—MS m/z [M+H—Boc]+ 316.
STEP E: (S)—3—(7—fluoro(pyrrolidinyloxy)isoquinolinyl)-1H—1,2,4-triazol-
(4H)—one
N’NH
I \F0
\ N
| H
0,,CNH
A solution of (S)—tert—butyl fluoro—3—(5—oxo—4,5—dihydro—1H—1,2,4—triazol
yl)isoquinolinyl)oxy)pyrrolidinecarboxylate (70 mg, ol) in HCl/EtOAc (5 mL)
was stirred at RT for 30 minutes. The e was subsequently concentrated in vacuo to
give the title compound, which was used in the next step without further purification (60 mg,
100%). EST—MS m/z [M+H]+ 316.
STEP F: (S)—3-(1-((1-acryloylpyrrolidinyl)oxy)fluoroisoquinolinyl)-1H—
1,2,4—triazol-5(4H)—one
To (S)—3—(7—fluoro—1—(pyrrolidin-3 -yloxy)isoquinolin-3 -yl)-1H—1,2,4-triazol-5(4H)-
one (60 mg, 1.61 mmol) in DCM (10 mL ) was added 2,6-dimethylpyridine (51 mg, 0.475
mmol). The mixture was cooled to —40°C. Acryloyl chloride (17 mg, 0.20 mmol) was added
and the mixture was warmed to 0°C over a 30 minute period. The reaction was subsequently
quenched with MeOH (5 mL) and the mixture concentrated in vacuo. The crude product was
purified by preparative HPLC to give the title compound (16.4 mg, 27%). 1H NMR (400
MHz, DMSO—d6) 5 ppm 12.06 (s, 1H), 11.82 (s, 1H), 8.17—8.13 (t, J=8 Hz, 1H), 8.05 (s, 1H),
7.88—7.85 (d, J=12 Hz, 1H), 7.78—7.76 (t, J=8 Hz,1H), 6.50—6.70 (m, 1H), 6.19—6.13 (m,
2H),5.73—5.67 (dd, J1=12 Hz, J2=4 Hz, 1H), .08 (m, 0.5H), 3.87—3.82 (m, 2H), 3.69—
3.65 (m, 1.5H), 2.38—2.25 (m, 2H); ESI—MS m/z [M+H]+ 370.
EXAMPLE 19: 3-(1-(((3R,4S)—1-acryloylmethylpyrrolidinyl)oxy)isoquinolin-
3-yl)—1H—1,2,4-triazol-5(4H)-one and 3-(1-(((3S,4R)—1-acryloylmethylpyrrolidin
yl)oxy)isoquinolinyl)-1H—1,2,4-triazol-5(4H)-one (mixture of omers)
NrNH N/NH
I o I o
\ N \ N
| H | H
O O 0,, O
:9N N
’CH2 ,C ’CHz
H3C and H3O
STEP A: tert—butyl trans-3 -((3 -chloroisoquinolinyl)oxy)methylpyrrolidine
carboxylate
CI CI
|\ |\
/N /N
0 O O, 0
‘CN CH3 "
N CH3
O’QCHS O’QCHB
H3C CH3 and H30 CH3
To a 25 mL microwave vial was added N—methyl—2—pyrrolidinone (10.00 mL) and
utyl transhydroxymethylpyrrolidinecarboxylate (1.118 g, 5.55 mmol). The
mixture was cooled to 0°C under a nitrogen atmosphere. To this mixture was added n-
wise NaH (60% suspension in mineral oil, 0.202 g, 5.05 mmol). After 5 minutes the mixture
was allowed to warm to RT and was stirred for 10 minutes. Next, 1,3-dichloroisoquinoline
(1 g, 5.05 mmol) was added and the on mixture was heated in a microwave reactor at
135°C for 30 minutes. The reaction mixture was subsequently diluted with water (100 mL)
and extracted with EtOAc (3 x 100 mL). The organic layers were combined, washed with
brine, dried over NaZSO4, and concentrated onto silica. The crude product was purified by
flash column chromatography (SiOz) eluting with a gradient of 5-50% heptane in EtOAc to
give the title compound as a white solid (1.066 g, 58.2%). 1H NMR (500 MHz, CDC13) 5
ppm 1.16 (d, 3 H), 1.48 (s, 9 H), 2.60 (br s, 1 H), 3.23 (br s, 1 H), 3.49 (br s, 1 H), 3.74 (br s,
1 H), 3.94 (br s, 1 H), 5.38 (br s, 1 H), 7.23—7.32 (m, 1 H), 7.51 (ddd, 1 H), 7.61—7.71 (m, 2
H), 8.17 (d, 1 H); ESI—MS m/z [M+H]+ 307.6.
STEP B: tert—butyl 3-((3-cyanoisoquinolinyl)oxy)methylpyrrolidine
carboxylate
/ /
\ \
I I
O O o, 0
\CN CH3 "
N CH3
‘6 O’QCst o’eCHs
H3O CH3 and H30 CH3
A mixture of tert—butyl trans((3-chloroisoquinolinyl)oxy)
methylpyrrolidinecarboxylate (1 g, 2.76 mmol), zinc cyanide (0.647 g, 5.51 mmol),
3)4 (0.318 g, 0.276 mmol) and DMF (7.83 mL) was heated in a microwave r at
160°C for 20 minutes. The reaction mixture was subsequently taken up in EtOAc (100 mL),
washed with brine (50 mL) and water (50 mL), dried over NaZSO4, and concentrated onto
silica gel. The crude product was purified by flash column chromatography (SiOz) g
with a 5-50% gradient of heptane in EtOAc to give title compound as a white solid (0.796 g,
82%). 1H NMR (500 MHz, CDCl3) 5 ppm 1.17 (d, 3 H), 1.41—1.54 (m, 9 H), 2.60 (br s, 1 H),
3.26 (br s, 1 H), 3.45—3.65 (br s, 1 H), 3.74 (br s, 1 H), 3.93 (dd, 1 H), 5.40 (dt, 1 H), 7.67—
7.87 (m, 4 H), 8.27 (d, 1 H); ESI—MS m/z [M+H—tert—butyl]+ 298.6.
STEP C: tert—butyl trans—3-methyl((3-(5-oxo-4,5-dihydro-1H—1,2,4-triazol
yl)isoquinolinyl)oxy)pyrrolidinecarboxylate
N—NH N’NH
l >=o I \F0
\ N \ N
| H | H
o O o, 0
\CN CH3 " NJ< CH3
‘6 O/eCHg, o’eCH‘?’
H30 CH3 and H30 CH3
A mixture of tert—butyl trans((3-cyanoisoquinolinyl)oxy)methylpyrrolidine-
1-carboxylate (790 mg, 2.235 mmol), ethyl hydrazinecarboxylate (1164 mg, 11.18 mmol) and
DBU (168 11L, 1.118 mmol) in N—methylpyrrolidinone (5.6 mL) and under a nitrogen
here was heated at 170°C in a sealed vial for 16 hours. The reaction mixture was
allowed to cool to RT and was poured onto ice water, forming a pale yellow precipitate. After
the ice melted (total volume was 100 mL) the solid was d and dried to give the title
compound as a pale yellow solid (647 mg, 70.3%). 1H NMR (500 MHz, DMSO—dg) 5 ppm
1.12 (d, 3 H), 1.40 (d, 9 H), 3.11 (d, 1 H), 3.70 (dd, 2H), 3.86—4.04 (m, 2 H), 5.70—5.80 (1H,
m), 7.68 (t, 1 H), 7.81 (t, 1 H), 7.98 (s, 1H), 8.02 (d, 1 H), 8.18 (d, 1 H), 11.79 (s, 1 H), 12.03
(d, 1 H); ESI—MS m/z [M+H—Boc]+ 312.7.
STEP D: 3 transmethylpyrrolidin-3 -yl)oxy)isoquinolin-3 -yl)- 1H- 1 ,2,4-
triazol—5 (4H)—one
NrNH NrNH
I \FO I >=O
\ N \ N
| H | H
UH o,,,,CNH
H30“ and H3C
A mixture of tert—butyl transmethyl((3-(5-oxo-4,5-dihydro-1H—1,2,4-triazol
yl)isoquinolinyl)oxy)pyrrolidinecarboxylate (0.640 g, 1.555 mmol) and HCl in 1,4-
dioxane (3.8 mL, 15.55 mmol) was stirred for 30 s, forming a mustard colored
precipitate. The precipitate was filtered, washed with diethyl ether, and dried to give an HCl
salt of the title compound (0.550 g, tative yield). 1H NMR (500 MHz, DMSO—dg) 5
ppm 1.19 (d, 3 H), 2.68—2.74 (m, 1 H), 3.03 (dd, 1 H), 3.27—3.60 (m, 3 H), 3.86 (dd, 1 H),
.85 (m, 1 H), 7.69 (t, 1 H), 7.78—7.90 (m, 1 H), 8.02 (s, 1 H), 8.04 (d, 1H), 8.21—8.30
(m, 1 H), 9.48 (br s, 1 H), 9.67 (br s, 1 H), 11.8 (s, 0.5H), 12.01 (s, 0.5H), EST—MS m/z
[M+H]+ 312.6.
STEP E: 3-(1-(((3R,4S)acryloylmethylpyrrolidinyl)oxy)isoquinolinyl)-
1H—1,2,4-triazol-5 (4H)-one and 3-(1-(((3S,4R)—1-acryloylmethylpyrrolidin
yl)oxy)isoquinolinyl)-lH-1,2,4-triazol-5(4H)-one re of enantiomers)
A suspension of 3—(1—((trans—4—methylpyrrolidin—3 -yl)oxy)isoquinolin—3 —yl)— 1H—
1,2,4—triazol-5(4H)—one, HCl (0.55 g, 1.58 mmol) and 2,6—dimethylpyridine (0.37 mL, 3.16
mmol) in DCM (13 mL) was cooled to 0°C. Acryloyl chloride (0.26 mL, 3.16 mmol) was
added and the reaction mixture was stirred for 10 minutes, forming a pale yellow precipitate.
The reaction was quenched with aqueous NaHCO3 (15 mL) and the mixture was filtered. The
precipitate was ted, washed with DCM (2 x 5 mL) and water (2 x 5 mL) and dried to
give the title compounds (a mixture of enantiomers) as a white solid (300 mg, 52%). 1H NMR
(500 MHz, DMSO—d6) 5 ppm 1.15 (d, J=6.83 Hz, 3 H), 2.53—2.65 (m, 1 H), 3.25—3.45 (1H,
m), 3.55 (ddd, 1 H), 3.81—4.03 (m, 1 H), 4.20 (1H, ddd), 5.65 (ddd, 1 H), 5.73—5.88 (m, 1 H),
6.15 (ddd, J=16.84, 9.76, 2.20 Hz, 1 H), 6.60 (1H, ddd), 7.67 (td, J=7.32, 3.42 Hz, 1 H), 7.81
(t, J=7.57 Hz, 1 H), 7.93—8.08 (m, 2 H), 8.19 (d, J=8.30 Hz, 1 H), 11.79 (br s, 1 H), 12.03 (br
s, 1 H); ESI—MS m/z [M+H]+ 366.
EXAMPLE 20: 3-(1-(((3R,4S)—1-acryloylmethylpyrrolidin-3 -yl)oxy)isoquinolin-
3-yl)—1H—1,2,4-triazol-5(4H)-one
IN 0
O 0
The enantiomers of EXAMPLE 19 were separated using chiral supercritical fluid
chromatography (SFC) eluting with C02, IPA, and 0.1% l amine. During the SFC
separation a diethylamine adduct was formed in a 1:1 ratio with title compound. Further
purification via preparative HPLC gave the title compound as a white solid (22 mg). 1H NMR
(500 MHz, DMSO—d6) 5 ppm 1.10 (d, 3 H), 2.45—2.58 (m, 1 H), 3.20 (dd, 1 H), 3.54 (dd,1 H),
3.76 (dd, 1 H), 3.89—4.08 (m, 1 H), 5.51—5.67 (m, 1 H), 5.67—5.78 (m, 1 H), 6.08 (ddd, 1 H),
6.50 (dd, 1 H), 7.60 (td, 1 H), 7.74 (t, 1 H), 7.88—8.01 (m, 2 H), 8.12 (d, 1 H), 11.73 (s, 1 H),
11.96 (d, 1 H); ESI—MS m/z [M+H]+ 366.6.
EXAMPLE 21: 3-(1-(((3S,4R)—1-acryloylmethylpyrrolidinyl)oxy)isoquinolin-
3-yl)—1H—1,2,4-triazol-5(4H)-one
“(N/Lo
| N
On, 0
The omers of EXAMPLE 19 were separated using chiral SFC eluting with
C02, IPA, and 0.1% diethyl amine. During the SFC separation a diethylamine adduct was
formed in a 1:1 ratio with title compound. Further purification via preparative HPLC gave the
title compound as a white solid (24 mg). 1H NMR (500 MHz, DMSO—dg) 5 ppm 1.08 (3H, d),
2.55—2.65 (m, 1 H), 3.20 (dd, 1 H), 3.54 (dd, 1 H), 3.76 (dd, 1 H), 3.89—4.08 (m, 1 H), 5.54—
.76 (m, 2 H), 6.09 (ddd, 1 H), 6.50 (dd, 1 H), 7.60 (td, 1 H), 7.74 (t, 1 H), 7.87—8.01 (m, 2
H), 8.12 (d, 1 H), 11.73 (s, 1 H), 11.96 (d, 1 H); ESI—MS m/z [M+H]+ 366.6.
EXAMPLE 22: (S)—3-(1-((1-acryloylpyrrolidinyl)oxy)—8-fluoroisoquinolinyl)-
1H—1,2,4-triazol—5(4H)—one
STEP A: (S)—tert—butyl 3 —((3 —cyano—8—fluoroisoquinolinyl)oxy)pyrrolidine
carboxylate
To a solution of rt—butyl 3—hydroxypyrrolidinecarboxylate (2.18 g,
12 mmol) in THF (50 mL) was added NaH (0.464 g, 12 mmol) at 0°C. The e was
stirred at RT for 30 minutes. Next, 1-chlorofluoroisoquinoline-3—carbonitrile (1.6 g, 8
mmol) was added and the reaction mixture was warmed to RT and stirred for 4 hours. The
reaction was subsequently quenched with H20 (20 mL) and the mixture was ted with
EtOAc (3 x 50 mL). The organic layers were combined and concentrated in vacuo. The crude
product was purified by preparative HPLC to give the title compound (1 g, 60%). 1H NMR
(400 MHz, CDC13) 5 ppm 7.72 (s, 2H), 7.61—7.59 (d, J=8 Hz, 1H), 7.38—7.32 (t, J=12 Hz,
1H), 5.8 (s, 1H), 3.75—3.59 (m, 4H), 2.29—2.28 (d, J=4Hz, 2H).
STEP B: (S)—tert—butyl 3-((8-fluoro(hydrazinyl(imino)methyl)isoquinolin
yl)oxy)pyrrolidinecarboxylate
,NH2
l/N H
F o,“ 0
CNJ<OJ§E3H3
To a mixture of (S)—tert—butyl 3-((3 -cyanofluoroisoquinolinyl)oxy)pyrrolidine-
1-carboxylate (600 mg, 1.61 mmol) in MeOH (15 mL ) was added NHZNHz-HZO (10 mL)
and the resulting mixture was heated to reflux for 2 hours. The t was removed in vacuo
to afford the title compound as a white solid, which was used without further purification
(500 mg).
STEP C: (S)—tert—butyl 3 —((8—fluoro—3 —(5 -oxo-4,5-dihydro- 1H- 1 ,2,4-triazol-3 -
yl)isoquinolinyl)oxy)pyrrolidine—1-carboxylate
To a e of (S)-tert—butyl 3-((8-fluoro(hydrazinyl(imino)methyl)isoquinolin-
1-yl)oxy)pyrrolidinecarboxylate (500 mg, 1.12 mmol) in dioxane (10 mL ) was added CD1
(3 62 mg, 2.24mmol) and the resulting mixture was heated to reflux for 2 hours. The reaction
mixture was concentrated in vacuo to give crude product, which was purified by preparative
HPLC to give the title compound (220 mg, 47.4%). ESI—MS m/z [M+H—Boc]+ 316.
STEP D: (S)—3—(8—fluoro—1-(pyrrolidinyloxy)isoquinolinyl)—1H-1,2,4-triazol-
(4H)—one
A on of (S)—tert—butyl 3—((8—fluoro—3—(5—oxo—4,5—dihydro—1H—1,2,4—triazol
yl)isoquinolinyl)oxy)pyrrolidinecarboxylate (90 mg, 0.224 mmol) in HCl/EtOAc (4M,
mL) was stirred at RT for 2 hours. The mixture was subsequently concentrated in vacuo to
give an HCl salt of title nd (80 mg, 100%).
STEP E: (S)—3—(1—((1-acryloylpyrrolidinyl)oxy)fluoroisoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
To a e of (8-fluoro(pyrrolidinyloxy)isoquinolinyl)- 1H—1,2,4-
triazol-5(4H)-one hydrochloride (80 mg, 0.22 mmol) in DCM (5 mL) was added 2,6—
dimethylpyridine (70 mg, 0.6 mmol). The mixture was cooled to —40°C. Acryloyl chloride
(25 mg, 0.28 mmol) was added and the reaction e was warmed to 0°C over a 30 minute
period. The reaction was quenched with MeOH (5 mL) and the mixture concentrated in
vacuo. The crude product was purified by preparative HPLC to give the title compound
(43 mg, 54%). 1H NMR (400 MHz, DMSO—d6) 5 ppm 12.07 (s, 1H), 11.88 (s, 1H), 8.01 (s,
1H), 7.85—7.83 (d, J=8 Hz, 1H), 7.78—7.76 (t, J=4 Hz, 1H), 7.39 (m, 1H), 6.67-6.64 (m, 1H),
6.19—6.14(m, 2H), 5.72—5.66 (m, 1H), 4.06 (m, 0.5H), .58 (m, 3.5H), 2.29—2.25 (m,
2H).
EXAMPLE 23: (S)—3-(1-((1-acryloylpyrrolidinyl)amino)fluoroisoquinolin
yl)—1H—1,2,4—triazol—5(4H)—one
NaNH
I >20
\ N
| H
F HN,“ 0
CNJ:’CHZ
STEP A: (S)—tert—butyl 3 —((3 —cyanofluoroisoquinolin- 1 ino)pyrrolidine
carboxylate
To a suspension of 1—chloro—8—fluoroisoquinoline—3 —carbonitrile (0.8 g, 3.88 mmol)
and Et3N (0.78 g, 7.76 mmol) in NMP (5 mL) was added (S)-tert—butyl 3—aminopyrrolidine—1—
carboxylate (0.87 g, 4.66 mmol) at RT. The resulting mixture was heated at 160°C for 30
minutes in a microwave r. The reaction was quenched with water and the mixture was
extracted with EtOAc (3 x 30 mL). The organic phase was dried over NaZSO4 and
concentrated in vacuo. The crude product was purified by column chromatography g
with ethyl acetate and petroleum ether (EtOAc/PE=1:50-1:9 gradient) on silica gel to give the
title compound (1.12 g, 81%). 1H NMR (400 MHz, CDCl3) 5 ppm 7.56—7.52 (m, 1H), 7.44—
7.42 (d, 1H, J=8.0 Hz), 7.29 (s, 1H), 7.21—7.18(m, 1H), 6.47—6.43 (m, 1H), 4.73 (br s, 1H),
3.77—3.72 (dd, J1=6.4 Hz, J2=11.6 Hz, 1H), .19(m, 3H), 2.26 (br s, 1H), 1.90 (br s,
1H), 1.41 (s, 9H); ESI—MS m/z [M+H—tert—butyl]+ 301.2.
STEP B: (S)—tert—butyl 3—((8—fluoro(5-oxo-4,5-dihydro-1H-1,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate
To a mixture of (S)—tert—butyl 3—((3 —cyano-8—fluoroisoquinolin—1—
yl)amino)pyrrolidinecarboxylate (1.0 g, 2.81 mmol), ethyl hydrazinecarboxylate (7.74 g,
74.40 mmol) and 5,7,8,9,10-octahydropyrido[1,2-a][1,3]diazepine (1.13 g, 7.44 mmol)
was added a catalytic amount ofNaH (10 mg, 0.25 mmol). The reaction mixture was heated
to 170°C for 30 minutes. The crude product was purified by preparative HPLC to give the
title nd as pale yellow solid (300 mg, 25.7%). EST—MS m/z [M+H]+ 415.2.
STEP C: (S)—3—(8—fluoro(pyrrolidinylamino)isoquinolinyl)-1H—1,2,4-
triazol—5(4H)—one
F HN,,'CNH
To a mixture of (S)—tert—butyl 3—((8—fluoro(5-oxo-4,5-dihydro-1H—1,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate (300 mg, 0.72 mmol) in EtOAc (5 mL)
was added a 4M solution of HCl in EtOAc (5 mL). The reaction mixture was stirred at RT for
45 minutes. The solvent was removed in vacuo to give an HCl salt of the title compound
(250 mg, 99.2%). EST—MS m/z [M+H]+ 315.2.
STEP D: (S)(1-((1-acryloylpyrrolidinyl)amino)—8-fluoroisoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
To a mixture of (S)—3-(8-fluoro(pyrrolidinylamino)isoquinolin-3 -yl)- 1H—1,2,4-
triazol—5(4H)—one hloride (250 mg, 0.71 mmol) in DCM (15 mL) was added a solution
of 2,6-dimethylpyridine (192 mg, 1.8 mmol) in DCM (1 mL). Acryloyl chloride (135 mg, 1.5
mmol) in DCM (1.35 mL) was added se via syringe at -78°C. The reaction mixture
was stirred at -78°C for 30 minutes. Additional 2,6-dimethylpyridine (32 mg, 0.3 mmol) in
DCM (0.32 mL) was added followed by acryloyl chloride (45 mg, 0.50 mmol) in DCM
(0.45 mL). The reaction mixture was stirred at -10°C for 20 s. The reaction was
quenched with MeOH (1 mL) and the mixture was trated under vacuum. The crude
product was purified by preparative HPLC to give the title compound as a white solid (40.58
mg, 15.5%). 1H NMR (400 MHz, 6) 5 ppm 11.91 (s, 1H), 11.78 (s, 1H), 7.69—7.63
(m, 3H), 7.60-7.58 (m, 1H), 6.61—6.55 (m, 2H), 6.18—6.13 (m, 1H), 5.67-5.64 (m, 1H), 5.30-
.10 (m, 1H), 4.17-4.15 (m, 1H), 3.66-3.63 (m, 2H), 3.28—3.25 (m, 1H), 2.25—2.03 (m, 2H);
ESI—MS m/z [M+H]+ 369.1.
EXAMPLE 24: (S)—3-(1-((1-acryloylpyrrolidinyl)oxy)—7-chloroisoquinolinyl)—
1H—1,2,4-triazol—5(4H)—one
STEP A: (S)—tert—butyl 3 —((7—chloro—3 -cyanoisoquinolin- 1 y)pyrrolidine— 1 -
carboxylate
To a solution of (S)—tert—butyl oxypyrrolidinecarboxylate (201 mg,
1.076 mmol) in THF (5 mL) at 0°C was added NaH (81 mg, 1.35 mmol). The reaction
mixture was stirred at RT for 30 minutes. Next, 1,7-dichloroisoquinolinecarbonitrile
(200 mg, 0.897 mmol) was added and the on mixture was warmed to RT over a 1 hour
period. The reaction was quenched with saturated aqueous NH4Cl (10 mL) and the resulting
mixture was extracted with EtOAc (3 x 50 mL). The c layers were combined, washed
with brine, dried over , and concentrated. The crude product was purified by
preparative TLC eluting with petroleum ether and ethyl acetate (PE/EtOAc=3: 1) to give the
title compound (200 mg, 59%). 1H NMR (400 MHz, CDCl3) 5 ppm 8.15 (s, 1H), 7.65—7.71
(m, 3H), 5.74 (br, 1H), 3.46—3.69 (m, 4H), 2.23 (s, 1H), 1.49 (s, 9H).
STEP B: (S)-tert—butyl 3-((7-chloro(hydrazinyl(imino)methyl)isoquinolin
yl)oxy)pyrrolidinecarboxylate
“C,“ 0
o’eCHs
To a mixture of (S)-tert—butyl 3-((7-chloro-3 -cyanoisoquinolinyl)oxy)pyrrolidine-
1-carboxylate (300 mg, 1.61 mmol) in MeOH (4 mL) was added NHZNHZHZO (5 mL). The
resulting e was heated to reflux for 2 hours. The solvents were removed in vacuo to
give the title compound, which was used without further purification. EST—MS m/z [M+H]+
406.1.
STEP C: (S)—tert—butyl 3—((7—chloro—3-(5-oxo-4,5-dihydro-1H-1,2,4-triazol
yl)isoquinolinyl)oxy)pyrrolidine—1-carboxylate
To a mixture of (S)-tert—butyl 3-((7-chloro(hydrazinyl(imino)methyl)isoquinolin-
1-yl)oxy)pyrrolidinecarboxylate (350 mg, 0.862 mmol) in dioxane (8 mL ) was added CD1
(210 mg, 1.293 mmol). The reaction mixture was heated to reflux for 2 hours and was
uently concentrated in vacuo. The crude product was purified by preparative HPLC to
give the title compound (200 mg, 57%).
STEP D: (S)—3—(7-chloro(pyrrolidin-3 -yloxy)isoquinolinyl)-1H—1,2,4-triazol-
(4H)—one
0,,CNH
A solution of rt—butyl chloro—3—(5—oxo-4,5—dihydro—1H—1,2,4—triazol—3—
yl)isoquinolinyl)oxy)pyrrolidinecarboxylate (200 mg, 0.463 mmol) in 4M HCl/EtOAc
(5 mL) was stirred at RT for 2 hours. The reaction e was subsequently concentrated in
vacuo to give the title compound (180 mg, 100%).
STEP E: (1-((1-acryloylpyrrolidinyl)oxy)chloroisoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
To a mixture of (S)—3-(7-chloro(pyrrolidinyloxy)isoquinolinyl)-1H—1,2,4-
triazol-5(4H)-one (180 mg, 0.489 mmol) in DCM (10 mL) was added 2,6-dimethylpyridine
(157 mg, 1.467 mmol) at —20°C followed by the se addition of acryloyl chloride (88
mg, 0.978 mmol, 10 mg/mL in dry DCM). The reaction mixture was warmed to 0°C over a
minute period. The reaction was quenched with MeOH (5 mL) and the mixture
trated in vacuo. The crude product was purified by preparative HPLC to give the title
compound (35 mg, 18%). 1H NMR (400 MHz, DMSO—d6) 5 ppm 12.06 (br, 1H), 11.84 (s,
1H), 8.16 (s, 1H), 8.09 (dd, J=1.8 Hz and 8.9 Hz, 1H), 8.03 (s, 1H), 7.83—7.86 (m, 1H), 6.55—
6.72 (m, 1H), 6.12—6.19 (m, 2H), 5.63—5.72 (m, 1H), .12 (m, 4H), 2.25—2.42 (m, 2H).
EXAMPLE 25: (S)—3-(1-((1-acryloylpyrrolidin-3 -yl)amino)fluoroisoquinolin
—1,2,4—triazol—5(4H)—one
[041 0] STEP A: (S)—tert—butyl 3 -((3 -chlorofluoroisoquinolinyl)amino)pyrrolidine
carboxylate
HN’“CNJ2)
0%031'13
To a solution of 1,3-dichlorofluoroisoquinoline (1 g, 4.6 mmol) in NMP (15 mL)
was added (S)—tert—butyl 3—aminopyrrolidinecarboxylate (1.72 g, 9.3 mmol) and Et3N
(1.4 g, 14 mmol). The reaction mixture was heated at 160°C for 2 hours. The mixture was
subsequently partition between H20 (20 mL) and EtOAc (20 mL). The aqueous phase was
ted with EtOAc (3 x 20 mL). The organic layers were combined, dried over NaZSO4,
and concentrated. The crude product was purified by column chromatography eluting with
petroleum ether and ethyl acetate (PE/EA=10:1-5:1 gradient) to give the title compound
WO 64558 2014/022801
(1.2 g, 70%). 1H NMR (400 MHz, DMSO—dg) 5 ppm 8.26—8.23 (d, J=10.8 , 7.82—7.80
(dd, J1=8.8 Hz, J2=5.2 Hz, 1H), 7.68—7.67 (d, J=5.6 Hz 1H), 7.63—7.60 (t, J=8.8 Hz,1H), 7.10
(s, 1H), 4.63—4.53 (m, 1H), 3.70—3.66 (m, 1H), 3.48—3.45 (m, 1H), 3.29—3.26 (m, 1H), 2.23—
2.18 (m, 1H), 2.03—1.97 (m, 1H), 1.40(s,9H).
STEP B: (S)-tert—butyl cyanofluoroisoquinolinyl)amino)pyrrolidine
carboxylate
HN’“ O
C CH
N 3
0%CH3
To a solution of (S)—tert—butyl 3—((3—chloro—7—fluoroisoquinolin—1—
yl)amino)pyrrolidinecarboxylate (0.5g, 1.37mmol) in DMF (15 mL) was added 2
(0.48 g, 4.1 mmol), and Pd(PPh3)4(0.16g,0.14mmol) under a nitrogen atmosphere. The
mixture was heated to 160°C for 30 minutes in a microwave reactor. The mixture was
partition between EtOAc (50 mL) and water (50 mL). The aqueous layer was extracted with
EtOAc (3 x 50 mL). The organic layers were combined, washed with saturated aqueous NaCl
(3 x 50 mL) and concentrated in vacuo. The crude product was purified by column
chromatography eluting with eum ether and ethyl acetate (PE/EtOAc=10:1-5:1
gradient) to give the title compound (0.36 g, 72%). 1H NMR (400 MHz, DMSO—d6) 5 ppm
8.38—8.35 (d, J=10.8 Hz, 1H), 8.01—7.97 (m, 1H), .72 (m, 3H), 4.66—4.58 (m, 1H), 3.69—
3.67 (m, 1H), 3.48—3.46 (m, 1H), 3.39—3.37 (m, 1H), 3.28—3.27 (m, 1H), 2.2 (s, 1H), 1.97—1.91
(m, 1H), 1.40 (s, 9H).
STEP C: (S)-tert—butyl 3-((7-fluoro(hydrazinyl(imino)methyl)isoquinolin
yl)amino)pyrrolidinecarboxylate
HN,,’ O
Chi/(o’eccl‘ltaCH
To a mixture of (S)-tert—butyl 3-((3 -cyanofluoroisoquinolin
yl)amino)pyrrolidinecarboxylate (350 mg, 1 mmol) in MeOH (10 mL) was added
NHZNHz-HZO (10 mL). The reaction mixture was heated to reflux for 2 hours. The solvent
was removed to give the title compound as white solid, which was used t further
ation (350 mg, 92%). ESI—MS m/z [M+H]+ 389.2.
STEP D: (S)—tert—butyl 3—((7—fluoro(5-oxo-4,5-dihydro-1H—1,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate
NaNH
I fio
\ N
| H
HN, O
N CH3
To a solution of rt—butyl 3-((7-fluoro(hydrazinyl(imino)methyl)isoquinolin-
1-yl)amino)pyrrolidinecarboxylate (0.35 g, 1 mmol) in dioxane (10 mL) was added CD1
(0.36 g, 2 mmol) under a nitrogen atmosphere. The mixture was heated to reflux for 2 hours
and was subsequently concentrated in vacuo. The crude product was purified by preparative
HPLC to give the title compound (120 mg, 34%). ESI-MS m/z [M+H]+ 415.2.
STEP E: (7-fluoro(pyrrolidinylamino)isoquinolinyl)-1H—1,2,4-triazol-
(4H)—one
N—NH
I \F0
\ N
| H
HN,“CNH
A solution of (S)—tert—butyl 3—((7-fluoro(5-oxo-4,5-dihydro-1H—1,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate (120 mg, 0.29 mmol) in 4M HCl/EtOAc
(10 mL) was stirred at RT for 30 minutes. The reaction mixture was concentrated in vacuo to
give the title compound, which was used without further purification (100 mg, 100%). ESI-
MS m/z [M+H]+ 315.2.
STEP F: (S)—3-(1-((1-acryloylpyrrolidinyl)amino)fluoroisoquinolinyl)- 1H-
1,2,4—triazol-5(4H)—one
To a mixture of (S)—3-(7-fluoro(pyrrolidinylamino)isoquinolin-3 -yl)- 1H—1,2,4-
triazol-5(4H)-one (100 mg, 0.35 mmol) in DCM (10 mL) was added 2,6-dimethylpyridine
(122 mg, 1.15 mmol). The resulting mixture was cooled to —40°C. Acryloyl chloride (45 mg,
0.49 mmol) was added dropwise and the reaction mixture was d at —40°C for 30 s.
The reaction was quenched with MeOH (5 mL) and the mixture concentrated in vacuo. The
crude product was purified by preparative HPLC to give the title compound (79 mg, 75%).
1H NMR (400 MHz, DMSO—d6) 5 ppm 11.84 (s, 1H), 11.70 (s, 1H), 8.25—8.22 (d, J=10.8 Hz,
1H), 7.97-7.96 (m, 1H), 7.63—7.60 (m, 2H), 7.55-7.54 (m, 1H), 6.59-6.57 (m, 1H), 6.21—6.15
(m, 1H), 5.68-5.65 (dd, J1=10.4 Hz, J2=2.4 Hz, 1H), 5.20-5.18 (m, 1H), 4.19—4.15 (m, 0.5H),
3.70- 3.67 (m, 2H), 3.69-3.45 (m, 1.5H), 3.25 (m, 0.5H), 2.26-2.24 (m,1H), 2.08—2.03
EXAMPLE 26: (S)—3-(1-((1-acryloylpyrrolidinyl)amino)chloroisoquinolin
yl)—1H—1,2,4—triazol—5(4H)—one
HN,“C
’CHZ
STEP A: (S)—tert—butyl 3 -((7-chloro-3 -cyanoisoquinolinyl)amino)pyrrolidine
ylate
HN’“ O
C CH
N 3
O+CH3
To a solution of 1,7-dichloroisoquinolinecarbonitrile (500 mg, 2.24 mmol) in
NMP (5 mL) was added (S)—tert—butyl 3-aminopyrrolidinecarboxylate (460 mg,
2.46 mmol) and Et3N (453 mg, 4.48 mmol). The solution was heated to 160°C for 30 s
in a microwave reactor. The reaction was quenched with H20 (20 mL) and extracted with
EtOAc (3 x 10 mL). The c layers were combined and concentrated in vacuo. The crude
product was purified by column chromatography g with ethyl acetate and petroleum
ether (EtOAc/PE=1 : 10 to 1:5 gradient) to give the title compound (660 mg, 79%). EST—MS
m/z [M+H-tert—butyl]+ 3 17.
STEP B: (S)-tert—butyl 3-((7-chloro(hydrazinyl(imino)methyl)isoquinolin
yl)amino)pyrrolidinecarboxylate
To a mixture of (S)-tert—butyl 3-((7-chlorocyanoisoquinolin-l-
yl)amino)pyrrolidine-l-carboxylate (660 mg, 1.77 mmol) in MeOH (5 mL) was added
NHZNHz-HZO (5 mL) and the resulting mixture was heated to reflux for 2 hours. The solvent
was subsequently removed to give the title nd as a yellow solid, which was used
without further ation (710 mg). EST-MS m/z [M+H]+ 405.
STEP C: (S)—tert—butyl 3—((7—chloro(5-oxo-4,5-dihydro-lH-1,2,4-triazol
yl)isoquinolin- l -yl)amino)pyrrolidine- l -carboxylate
NrNH
[\FO
To a mixture of (S)-tert—butyl 3-((7-chloro(hydrazinyl(imino)methyl)isoquinolin-
l-yl)amino)pyrrolidine-l-carboxylate (710 mg) in dioxane (10 mL) was added CD1 (42.6 mg,
2.63 mmol). The resulting mixture was heated to reflux for 2 hours. The reaction e was
concentrated in vacuo. The crude product was purified by preparative HPLC to give the title
compound (130 mg, 17% over 2 steps). EST—MS m/z [M+H]+ 431.
STEP D: (S)—3-(7-chloro-l-(pyrrolidinylamino)isoquinolinyl)—lH—l,2,4-
triazol—5(4H)—one
HN,“CNH
A solution of (S)—tert—butyl chloro—3—(5-oxo—4,5-dihydro— lH-l,2,4—triazol—3—
yl)isoquinolin-l-yl)amino)pyrrolidine-l-carboxylate (130 mg, 0.30 mmol) in 4M HCl/EtOAc
WO 64558
(4 mL) was stirred at RT for 50 minutes. The reaction mixture was subsequently concentrated
in vacuo to give an HCl salt of the title compound (120 mg). ESI—MS m/z [M+H]+ 331.
STEP E: (S)—3-(1-((1-acryloylpyrrolidinyl)amino)—7-chloroisoquinolinyl)- 1H-
1,2,4—triazol-5(4H)—one
To a mixture of (S)—3-(7-chloro(pyrrolidin-3 -ylamino)isoquinolin-3 -yl)-1H—1,2,4-
triazol-5(4H)-one hydrochloride (120 mg) in DCM (8 mL) was added 2,6-dimethylpyridine
(105 mg, 0.978 mmol). The resulting mixture was cooled to —78°C and acryloyl chloride (48
mg, 0.530 mmol, 10 mg/mL in dry DCM) was added dropwise. The reaction mixture was
stirred at —78°C for 30 minutes. The reaction was ed with MeOH (5 mL) and the
mixture was concentrated in vacuo. The crude product was purified by preparative HPLC to
give the title compound (22 mg, 18% over 2 steps). 1H NMR (400 MHz, DMSO—dg) 5 ppm
11.87 (s, 1H), 11.72 (s, 1H), 8.51 (S, 1H), 7.88 (m, 1H), 7.60—7.70 (m, 2H), 7.56 (d, 1H,
J=4.0 Hz), 6.55—6.57 (m, 1H), 6.13—6.19 (m, 1H), 5.63—5.70 (m, 1H), 5.17—5.18 (m, 1H),
3.65—4.17 (m, 4H), 2.01—2.37 (m, 2H); ESI—MS m/z [M+H]+ 385.
E 27: (S)—3-(1-((1-acryloylpyrrolidin-3 -yl)oxy)chloroisoquinolin-3 -yl)-
1H—1,2,4-triazol—5(4H)—one
NaNH
I o
|\ N
CI 0,, O
’CHZ
STEP A: (S)—tert—butyl 3 -((8-chloro-3 -cyanoisoquinolinyl)oxy)pyrrolidine
carboxylate
CI 0, 0
"CN CH3
O’eCH3
To a solution of (S)—tert—butyl oxypyrrolidine—1—carboxylate (126 mg, 0.674
mmol) in THF (5 mL) was added NaH (26.8 mg, 0.677 mmol) at 0°C. The mixture was
stirred for 30 minutes. Next, chloroisoquinolinecarbonitrile was added and the
reaction mixture was warmed to RT for 4 hours. The reaction was ed with H20 (2 mL)
and the mixture was extracted with EtOAc (3 x 10 mL). The organic layers were combined
WO 64558
and concentrated in vacuo. The crude t was purified by preparative TLC to give the
title compound (120 mg, 73.2%).
STEP B: (S)—tert—butyl chloro(hydrazinyl(imino)methyl)isoquinolin
yl)oxy)pyrrolidinecarboxylate
To (S)—tert—butyl 3—((8—chloro—3—cyanoisoquinolinyl)oxy)pyrrolidine
carboxylate (120 mg, 0.32 mmol) in MeOH (50 mL) was added NHzNHz-Hzo (5 mL). The
resulting mixture was heated to reflux for 2 hours and then cooled and concentrated in vacuo
to give the title compound as a yellow solid, which was used without further purification
(130.3 mg, 100%). ESI—MS m/z [M+H]+ 406.2.
STEP C: (S)—tert—butyl 3—((8—chloro—3-(5-oxo-4,5-dihydro-1H-1,2,4-triazol
yl)isoquinolinyl)oxy)pyrrolidine—1-carboxylate
To (S)—tert—butyl 3—((8—chloro(hydrazinyl(imino)methyl)isoquinolin
yl)oxy)pyrrolidinecarboxylate (130 mg, 1.61 mmol) in dioxane (10 mL) was added CD1
(78 mg, 0.48 mmol). The resulting mixture was heated to reflux for 2 hours and was then
cooled and concentrated in vacuo. The crude product was purified by ative HPLC to
give the title compound (50 mg, 35%). ESI—MS m/z [M+H—Boc]+ 332.2.
STEP D: (S)—3-(8-chloro(pyrrolidin-3 -yloxy)isoquinolinyl)—1H—1,2,4-triazol-
(4H)—one
CI 0,,CNH
A solution of (S)—tert—butyl 3-((8-chloro(5-oxo-4,5-dihydro-1H—l,2,4-triazol
quinolinyl)oxy)pyrrolidinecarboxylate (50 mg, 0.116 mmol) in HCl/EtOAc
(10 mL) was stirred at RT for 2 hours. The reaction mixture was uently concentrated in
vacuo to give an HCl salt of the title compound (42.6 mg). EST—MS m/z [M+H]+ 332.2.
STEP E: (S)—3-(1-((1-acryloylpyrrolidinyl)oxy)chloroisoquinolinyl)-1H-
1,2,4—triazol-5(4H)—one
To (8-chloro(pyrrolidinyloxy)isoquinolinyl)-1H-1,2,4-triazol-5(4H)-
one hydrochloride (42.6 mg, 0.116 mmol) in DCM (25 mL) was added 2,6-dimethylpyridine
(37.24 mg, 0.35 mmol). The resulting mixture was cooled to —20°C. Acryloyl chloride
(26.1 mg, 0.29 mmol, 10 mg/mL in dry DCM) was added dropwise and the reaction mixture
was warmed to 0°C for 30 minutes. The reaction was quenched with MeOH (5 mL) and the
mixture was concentrated in vacuo. The crude product was purified by preparative HPLC to
give the title compound (22.02 mg, 49.25%). 1H NMR (400 MHz, DMSO—dg) 5 ppm 12.09 (s,
1H), 11.87 (s, 1H), 8.01—7.98 (m, 2H), 7.71—7.70 (d, J=4.0 Hz, 2H), 6.67—6.57 (m, 1H), 6.26—
6.14 (m, 2H), 5.72—5.63 (m, 1H), 4.01—3.71 (m, 4H), 2.33—2.24 (m, 2H); EST—MS m/z [M+H]+
386.1.
E 28: (S)—3-(1-((1-acryloylpyrrolidinyl)amino)chloroisoquinolin
yl)—1H—1,2,4—triazol—5(4H)—one
CI HN,“C
,CH,
STEP A: (S)—tert—butyl 3 -((8-chloro-3 -cyanoisoquinolinyl)amino)pyrrolidine
carboxylate
CI HN, 0
"CN CH3
O,QcH3
To a suspension of 1,8—dichloroisoquinoline—3 —carbonitrile (0.3 g, 1.35 mmol) and
Et3N (0.27 g, 2.7 mmol) in NMP (5 mL) was added (S)-tert—butyl 3-aminopyrrolidine
carboxylate (0.3 g, 1.62 mmol) at RT. The resulting mixture was stirred at 160°C for 30
minutes in a ave reactor. The reaction was subsequently quenched with water and the
mixture was ted with EtOAc (3 x 30 mL). The organic phase was dried over NaZSO4
and concentrated in vacuo. The crude t was purified by column chromatography
eluting with ethyl acetate and eum ether (EtOAc/PE=1:10-1:2 gradient) on silica gel to
give the title compound (0.45 g, 85%). 1H NMR (400 MHz, DMSO—d6) 5 ppm 7.92—7.90 (d,
J=8.0 Hz,1H), 7.85—7.83 (m, 2H), 7.79—7.77 (d, J=8.0 Hz, 1H), 7.63 (s, 1H), 4.66—4.58 (m,
1H), 3.75—3.72 (t, J=8.0 Hz, 3H), 3.52—3.35 (m, 3H), 2.31—2.30 (br s, 1H), 2.11—2.07 (br s,
1H), 1.47—1.45 (s, 9H).
STEP B: rt—butyl 3-((8-chloro(hydrazinyl(imino)methyl)isoquinolin
yl)amino)pyrrolidinecarboxylate
To a mixture of (S)-tert—butyl chlorocyanoisoquinolin
yl)amino)pyrrolidinecarboxylate (450 mg, 1.21 mmol) in MeOH (5 mL) was added
NHZNHz-HZO (5 mL). The resulting mixture was heated to reflux for 2 hours and the solvent
was subsequently removed to give the title compound as a yellow solid, which was used
without further purification (450 mg, 91%). EST-MS m/z [M+H]+ 405.2.
STEP C: (S)—tert—butyl 3—((8—chloro(5-oxo-4,5-dihydro-1H-1,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate
2014/022801
To a mixture of (S)-tert—butyl 3-((8-chloro(hydrazinyl(imino)methyl)isoquinolin-
1-yl)amino)pyrrolidinecarboxylate (450 mg, 1.1 mmol) in dioxane (10 mL) was added
CD1 (3 60 mg, 2.2 mmol). The resulting mixture was heated to reflux for 2 hours and was
subsequently concentrated in vacuo. The crude product was purified by preparative HPLC to
give the title compound (170 mg, 45%). ESI-MS m/z [M+H]+ 431.1.
STEP D: (S)—3-(8-chloro(pyrrolidinylamino)isoquinolinyl)-1H—1,2,4-
triazol—5(4H)—one hydrochloride
CI HN,,,CNH
A solution of (S)—tert—butyl chloro(5-oxo-4,5-dihydro-1H—l,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate (170 mg, 0.52 mmol) in HCl/EtOAc
(10 mL) was stirred at RT for 2 hours. The reaction mixture was uently concentrated in
vacuo to give an HCl salt of the title compound (160 mg, 100%). 1H NMR (400 MHz,
DMSO—dg) 5 ppm 11.90 (s, 1H), 11.85 (s, 1H), 9.134 (s, 2H), 7.86—7.84 (dd, J1=2.8 Hz,
J2=6.8 Hz, 1H), 7.64—7.62 (m, 3H), 7.57—7.56 (d, J=6.4 Hz, 1H), 5.0 (s, 1H), 3.65—3.60 (m,
1H), 3.24—3.21 (m, 2H), 2.40—2.36 (m, 1H), 2.11—2.07 (m, 1H).
STEP E: (1-((1-acryloylpyrrolidinyl)amino)—8-chloroisoquinolinyl)- 1H-
triazol-5(4H)—one
To a mixture of (S)—3-(8-chloro(pyrrolidin-3 -ylamino)isoquinolin-3 -yl)-1H—1,2,4-
l-5(4H)-one hydrochloride (100 mg, 0.3 mmol) in DCM (20 mL) was added 2,6—
dimethylpyridine (97 mg, 0.91 mmol). The resulting mixture was cooled to —40°C. Acryloyl
chloride (51 mg, 0.6 mmol, 10 mg/mL in dry DCM) was added dropwise and the mixture was
stirred at —40°C for 30 minutes. The reaction was subsequently quenched with MeOH (5 mL)
and the mixture was concentrated in vacuo. The crude product was purified by preparative
HPLC to give the title compound (57 mg, 52%). 1H NMR (400 MHz, DMSO—dg) 5 ppm
11.91 (s, 1H), 11.80 (s, 1H), 7.85—7.83 (m, 1H), 7.61 —7.59 (m, 3H), 7.49—7.47 (m, 1H), 6.6—
6.5 (m, 1H), 6.17—6.13 (m, 1H), .63 (m, 1H), 5.18—5.16 (m, 1H), 4.18—4.17 (m, 0.5H),
3.69—3.65 (m, 0.5H), 3.42(m, 0.5H), 3.32—3.31 (m, 1.5H), 2.31—2.29 (m, 1H), 2.04—2.01 (m,
1H); ESI—MS m/z [M+H]+ 385.1.
EXAMPLE 29: (S)—3-(1-((1-acryloylpyrrolidinyl)amino)methoxyisoquinolin-
3-yl)—1H—1,2,4-triazol-5(4H)-one
Nl>=o
\ N
| H
,o HN,,
H3O ONT/{’042
STEP A: (S)—tert—butyl 3 —((3 -cyanomethoxyisoquinolinyl)amino)pyrrolidine-
1-carboxylate
To a solution of 1-chloromethoxyisoquinolinecarbonitrile (230 mg, 1.05
mmol) in NMP (5 mL) was added (S)—tert—butyl 3-aminopyrrolidinecarboxylate (294 mg,
1.57 mmol) and Et3N (212 mg, 2.1 mmol). The reaction mixture was heated to 130°C for 45
minutes in a microwave reactor and was subsequently quenched with H20 (20 mL). The
aqueous phase was ted with EtOAc (3 x 10 mL). The organic layers were ed
and concentrated in vacuo. The crude product was purified by column chromatography
eluting with ethyl acetate and petroleum ether (EtOAc/PE=1:20-1:2 gradient) to give the title
compound (380 mg, 2 batches, 52%). 1H NMR (400 MHz, CDC13) 5 ppm 7.85 (s, 1H), 7.55
(t, 1H, J=8.0 Hz), 7.25 (s, 1H), 6.97 (d, 1H, J=8.0 Hz), 4.60—4.80 (m, 1H), 4.01 (s, 3H), 3.78—
3.79 (m, 1H), 3.27—3.57 (m, 3H), 2.29—2.34 (m, 1H), 1.94—1.99 (m, 1H), 1.48 (s, 9H).
STEP B: rt—butyl 3-((3-(hydrazinyl(imino)methyl)methoxyisoquinolin
yl)amino)pyrrolidinecarboxylate
To a e of (S)—tert—butyl 3-((3 -cyanomethoxyisoquinolin
yl)amino)pyrrolidinecarboxylate (380 mg, 1.03 mmol) in MeOH (5 mL) was added
NHZNHZHZO (5 mL). The resulting mixture was heated to reflux for 2 hours. The solvent
was d to give the title compound as a yellow solid, which was used without further
purification (660 mg). EST-MS m/z [M+H]+ 401.
STEP C: (S)—tert—butyl 3—((8—methoxy(5-oxo-4,5-dihydro-1H—l,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate
To a mixture of (S)-tert—butyl 3-((3 -(hydrazinyl(imino)methyl)
yisoquinolinyl)amino)pyrrolidinecarboxylate (400 mg, 1.0 mmol) in dioxane
(10 mL) was added CD1 (245 mg, 1.5 mmol). The resulting mixture was heated to reflux for
2 hours and then trated in vacuo. The crude product was purified by preparative HPLC
to give the title compound (80 mg, 18% over 2 steps). EST—MS m/z [M+H]+ 427.
STEP D: (S)(8-methoxy(pyrrolidinylamino)isoquinolinyl)-1H-1,2,4-
triazol—5(4H)—one
A solution of (S)—tert—butyl 3—((8-methoxy(5-oxo-4,5-dihydro-1H-1,2,4-triazol
yl)isoquinolinyl)amino)pyrrolidinecarboxylate (80 mg, 0.187 mmol) in HCl/EtOAc (5
mL) was stirred at RT for 1 hour. The reaction mixture was subsequently concentrated in
vacuo to give an HCl salt of the title compound, which was used without further purification
(120 mg). ESI—MS m/z [M+H]+ 327.
STEP E: (S)—3-(1-((1-acryloylpyrrolidinyl)amino)methoxyisoquinolinyl)-
1H-1,2,4-triazol-5(4H)—one
To a mixture of (8-methoxy(pyrrolidinylamino)isoquinolinyl)— 1H-
1,2,4-triazol-5(4H)—one hydrochloride (120 mg, 0.33 mmol) in DCM (8 mL) was added 2,6—
dimethylpyridine (106 mg, 0.99 mmol). The resulting mixture was cooled to —78°C. Acryloyl
chloride (120 mg, 1.20 mmol, 10 mg/mL in dry DCM) was added dropwise and the reaction
mixture was stirred at —78°C for 1.5 hours. The reaction was quenched with MeOH (5 mL)
and the e was concentrated in vacuo. The crude product was purified by preparative
HPLC to give the title compound (34 mg, 27%). 1H NMR (400 MHz, 6) 5 ppm
11.81 (s, 1H), 11.69 (s, 1H), 7.85 (dd, J=7.1, 14.5 Hz, 1H), 7.57-7.51 (m, 1H), 7.43 (d, J=3.3
Hz, 1H), 7.36 (d, J=8.0 Hz, 1H), 7.02 (d, J=8.0 Hz, 1H), 6.72—6.54 (m, 1H), 6.16 (m, 1H),
.73-5.61 (m, 1H), 5.21-5.03 (m, 1H), 4.16 (m, 1H), 4.04—3.89 (m, 3H), 3.79 (m, 1H), 3.71—
3.61 (m, 1H), 3.44 (m, 1H), 3.24 (m, 1H), 2.42—2.21 (m, 1H), 2.09—1.90 (m, 1H); ESI—MS m/z
[M+H]+ 381.
EXAMPLE 30: (S)—3-(6-((1-acryloylpyrrolidinyl)oxy)methylpyridinyl)-
1H-1,2,4-triazol-5(4H)—one
STEP A: 2-cyanomethylpyridineoxide
H3C //
/Nto_
A solution of 4-methylpicolinonitrile (5 g, 42.3 mmol) in DCM (25 mL) was cooled
in an ice/brine bath. To this solution was added mCPBA (14.61 g, 85 mmol). The reaction
mixture was allowed to warm to RT and was stirred overnight. The mixture was subsequently
diluted with DCM until all solids were dissolved and was washed with 1N NaOH (2 x
200 mL) and with brine. The c phase was dried over MgSO4, d, and concentrated
in vacuo to give the title compound as a white solid (4.03 g, 71%). EST—MS m/z [M+H]+
135.1.
STEP B: 6-chloromethylpicolinonitrile
H3C / //N
A mixture of 2-cyanomethylpyridineoxide (4.03 g, 30 mmol) in phosphoryl
oride (80 mL, 858 mmol) was heated to reflux overnight. The solvent was removed in
vacuo. The residue was treated with ice and its pH made basic using saturated NaOH solution
at 0°C. The aqueous layer was extracted with DCM (3 x). The organic layers were combined,
dried over MgSO4, filtered, and evaporated in vacuo to give the title compound (3.7 g, 81%).
ESI—MS m/z [M+H]+ 153.6.
STEP C: 3-(6-chloromethylpyridinyl)-1H-1,2,4-triazol-5(4H)—one
N—NH
I ”#0
A mixture of 6-chloromethylpicolinonitrile (3 g, 19.66 mmol) and ethyl
hydrazinecarboxylate (8.19 g, 79 mmol) in NMP (6 mL) was heated in a sealed tube at 160°C
overnight. The residue was purified by column chromatography eluting with a gradient of 0-
80% EtOAc in heptanes. The product—containing fractions were collected and evaporated in
vacuo to give the title compound as a yellow semi—solid (428 mg). ESI—MS m/z [M+H]+
211.6.
STEP D: (S)—tert—butyl 3-((4-methyl(5-oxo-4,5-dihydro-1H—1,2,4-triazol
idinyl)oxy)pyrrolidinecarboxylate
A e of 3-(6-chloromethylpyridinyl)-1H-1,2,4-triazol-5(4H)-one
(428 mg, 2.032 mmol), rt—butyl 3-hydroxypyrrolidinecarboxylate (457 mg,
2.439 mmol) and sodium hydride (81 mg, 2.032 mmol) in N—methylpyrrolidinone (7 mL)
was heated in a ave reactor at 140°C for 30 minutes. After cooling, water was added
and the mixture was extracted with EtOAc. The aqueous layer was acidified with 1M HCl aq
and extracted with EtOAc. The organic layers were combined, dried over MgSO4, filtered,
and evaporated in vacuo to give the title compound, which was used without further
purification. ESI-MS [M+H—tert—butyl]+ 306.2.
STEP E: (S)(4-methyl(pyrrolidinyloxy)pyridinyl)-1H-1,2,4-triazol-
NrNH
H3C / N\Fo
| H
o,,,CNH
A e of (S)-tert—butyl 3-((4-methyl(5-oxo-4,5-dihydro-1H-1,2,4-triazol
yl)pyridinyl)oxy)pyrrolidinecarboxylate (700 mg, 1.937 mmol) and TFA (3 mL,
38.9 mmol) was stirred at RT for 1 hour. The solvent was removed in vacuo and the crude
product purified by ative HPLC eluting with a gradient 5-40% ACN in water (acid
mode). The product—containing fractions were collected and evaporated in vacuo to give the
title compound (12 mg, 2%).
STEP F: (S)(6-((1-acryloylpyrrolidinyl)oxy)methylpyridinyl)-1H—l,2,4-
l—5(4H)—one
To (S)(4-methyl(pyrrolidin-3 -yloxy)pyridinyl)-1H—1,2,4-triazol-5(4H)—one
(23 mg, 0.088 mmol), which was dissolved in a minimal amount of DCM, was added 2,6-
ylpyridine (20.44 uL, 0.176 mmol) and acryloyl chloride (9.56 mg, 0.106 mmol). The
reaction mixture was stirred overnight at RT and was subsequently diluted with water and
extracted with EtOAc (2 x). The organic layers were combined, dried over MgSO4, d,
and evaporated in vacuo. The crude product was purified by preparative HPLC eluting with a
gradient of 20-45% ACN in water (acid mode). The product-containing fractions were
combined and evaporated in vacuo to give a TFA salt of the title compound (12 mg). EST—MS
m/z [M+H]+ 316.3.
EXAMPLE 31: (S)—3-(6-((1-acryloylpyrrolidinyl)oxy)pyridinyl)-1H-1,2,4-
triazol—5(4H)—one
NaNH
I \FO
/ N
I H
o,, O
NJL’CHZ
STEP A: (S)—tert—butyl 3 -((6-cyanopyridinyl)oxy)pyrrolidine- l -carboxylate
To rt—butyl 3—hydroxypyrrolidine-l-carboxylate (676 mg, 3.61 mmol) in NMP
(4 mL) at 0°C was added CszCO3 (1176 mg, 3.61 mmol) followed by 6—chloropicolinonitrile
(500 mg, 3.61 mmol). The mixture was heated at 140°C for 15 minutes in a microwave
reactor to give the title nd. The crude product was used directly in the next step.
STEP B: (S)—tert—butyl 3-((6-(5-oxo-4,5-dihydro- lH-l,2,4-triazol-3 -yl)pyridin
yl)oxy)pyrrolidine- l -carboxylate
\ N
| H
o, 0
"CNT<O CH
CaHs
To crude (S)—tert—butyl 3—((6—cyanopyridin-2—yl)oxy)pyrrolidine—l—carboxylate
(1.044 g) in NMP (1.5 mL) was added ethyl hydrazinecarboxylate (0.752 g, 7.22 mmol). The
reaction mixture was heated at 175°C overnight and was subsequently cooled and diluted
with EtOAc. The organic phase was washed with saturated aqueous NH4Cl, dried, and
concentrated to give the title compound, which was used t r purification.
STEP C: (S)(6-(pyrrolidinyloxy)pyridinyl)- 1H- 1 ,2,4-triazol-5(4H)-one
NaNH
I \F0
\\ N
| H
o,“CNH
Crude (S)—tert—butyl 3—((6—(5—oxo—4,5-dihydro-1H-1,2,4-triazolyl)pyridin
yl)oxy)pyrrolidinecarboxylate was treated with DCM (4 mL) and TFA (2 mL) for 2 hours
at RT and then concentrated. The crude product was purified by preparative HPLC eluting
with a gradient of 1-25% ACN in water (acid mode) to give the title compound (125 mg,
14.0% over 3 steps).
STEP D: (S)—3-(6-((1-acryloylpyrrolidinyl)oxy)pyridinyl)-1H-1,2,4-triazol-
(4H)—one
To a on of (S)(6-(pyrrolidinyloxy)pyridinyl)—1H—1,2,4-triazol-5(4H)-
one (84 mg, 0.340 mmol) in DCM (10 mL) was added 2,6-dimethylpyridine (0.118 mL,
1.019 mmol) at 0°C followed by acryloyl chloride (0.041 mL, 0.510 mmol). The e was
stirred overnight. The reaction was subsequently quenched with water and the solvent was
removed in a rotary evaporator. The crude t was purified by preparative HPLC eluting
with a gradient of 20-3 1% ACN in water (acid mode) to give a TFA salt of the title
compound (7 mg, 7%). 1H NMR (400 MHz, DMSO—d6) (rotamers were observed) 5 ppm
1.90—2.25 (m, 2 H), 3.35—3.75 (m, 3.5 H), 3.90—4.00 (m, 0.5 H), 5.75—5.90 (m, 1H), 5.60 (ddd,
J=18.57, 10.36, 2.40 Hz, 1 H), 6.00—6.13 (m, 1 H), 6.43—6.64 (m, 1 H), 6.80 (dd, J=8.34, 4.55
Hz, 1 H), 7.44 (d, J=7.58 Hz, 1 H), 7.68—7.80 (m, 1 H); ESI—MS m/z [M+H]+ 302.3.
EXAMPLE 32: (6-((1-acryloylpyrrolidin-3 y)—5-methylpyridinyl)-
,4-triazol—5(4H)—one
/ 13>:
| H
0,, O
'CNJL
’CHZ
STEP A: (S)—tert—butyl 3 -((6-cyano-3 -methylpyridinyl)oxy)pyrrolidine
carboxylate
o, 0
“CN CH3
O+CH3
To (S)—tert—butyl 3—hydroxypyrrolidinecarboxylate (491 mg, 2.62 mmol) in NMP
(4 mL) was added CszCO3 (1025 mg, 3.15 mmol). The mixture was stirred at 0°C for 1 hour
2014/022801
at which time 6-chloromethylpicolinonitrile (400 mg, 2.62 mmol) was added. The reaction
mixture was heated at 140°C for 1 hour in a microwave reactor to give the title compound in
a crude on mixture that was used directly in the next step.
STEP B: (S)—tert—butyl 3—((3—methyl—6—(5—oxo—4,5—dihydro—lH—l,2,4—triazol—3—
yl)pyridinyl)oxy)pyrrolidinecarboxylate
N’NH
I \FO
| H
0’“ O
CNE<OIQCP3CH
To the on mixture containing (S)-tert—butyl 3-((6-cyanomethylpyridin
yl)oxy)pyrrolidinecarboxylate (1.095 g) was added NMP (1.5 mL) and ethyl
hydrazinecarboxylate (0.752 g, 7.22 mmol). The e was heated at 175°C for 1.5 days
and was subsequently cooled and d with EtOAc. The organic phase was washed with
aqueous NH4C1, dried, and concentrated. The crude product was purified by preparative
HPLC eluting with a gradient of 35-60% ACN in water (acid mode) to give the title
compound (0.042 g, 4.4% over 2 steps).
STEP C: (S)—3—(5-methyl(pyrrolidinyloxy)pyridinyl)-1H—1,2,4-triazol-
(4H)—one
N’NH
I \F0
| M
on,CNH
To a solution of (S)—tert—butyl 3-((3 -methyl(5-oxo-4,5-dihydro-1H-1,2,4-triazol-
3-yl)pyridinyl)oxy)pyrrolidine—1-carboxylate (0.042 g, 0.115 mmol) in DCM (5 mL) was
added TFA (1 mL). The reaction mixture was stirred at RT overnight. The solvent was
removed in vacuo and the residue was dried under high vacuum to give the title compound,
which was used directly to the next step.
STEP D: (S)—3-(6-((1-acryloylpyrrolidinyl)oxy)methylpyridinyl)-1H—1,2,4-
triazol—5(4H)—one
To a solution of (S)(5-methyl(pyrrolidinyloxy)pyridinyl)-1H—1,2,4-
triazol-5(4H)-one (30 mg, 0.115 mmol) in DCM (10 mL) was added 2,6-dimethylpyridine
1 12
(0.040 mL, 0.344 mmol) at 0°C followed by acryloyl chloride (0.014 mL, 0.172 mmol). The
mixture was stirred ght. The reaction was quenched with water and the mixture
concentrated in vacuo. The crude product was d by preparative HPLC eluting with a
gradient of 20-37% ACN in water (acid mode) to give a TFA salt of the title compound
(6 mg, 17%). 1H NMR (400 MHz, DMSO—d6) 5 ppm 2.14—2.29 (m, l H), 2.32 (br s, l H),
3.39 (s, 3 H), 3.45—3.99 (m, 4 H), 5.49—5.70 (m, l H), 5.74 (br s, l H), 6.09 (ddd, J=l6.74,
8.53, 2.27 Hz, 1 H), 6.47—6.68 (m, l H), 7.56—7.68 (m, l H), 7.76 (t, J=7.58 Hz, 1 H), 7.93—
8.05 (m, 1 H), 8.13 (d, J=8.34 Hz, 1 H); EST—MS m/z [M+H]+ 316.3.
EXAMPLE 33: (S)(l-((l-(2-chloroacetyl)pyrrolidinyl)oxy)isoquinolinyl)-
2,4-dihydro-3H—l,2,4-triazolone
To a solution of (S)(l-(pyrrolidinyloxy)isoquinolin-3 -yl)- lH—l,2,4-triazol-
(4H)—one (10 mg, 0.034 mmol) in DCM (3mL) was added 2,6-dimethylpyridine (5.28 ”L,
0.045 mmol) at 0°C followed by 2—chloroacetyl de (5.06 11L, 0.064 mmol). The reaction
mixture was stirred at room ature overnight. A white solid formed, which was filtered.
This solid quickly gummed up and was treated with MeOH. The ing liquor was
combined with the filtrate, passed through a membrane, and purified by mass-triggered
HPLC eluting with a gradient of 25-45% ACN in water (acid mode). The product-containing
fractions were concentrated to give a TFA salt of the title compound as a yellow film (5.9
mg, 35%). 1H NMR (400 MHz, CD3OD) 5 ppm 2.35 — 2.57 (m, 2H), 3.71 — 3.99 (m, 3H),
4.12 (dd, J=l2.38, 4.29 Hz, 1 H), 4.22 (s,l H), 4.31 (s, l H), 6.16 (br s, l H), 6.22 (br s, l H),
7.63 —7.71 (m, l H), 7.76 —7.84 (m, l H), 7.90 —8.03 (m, 2 H), 8.26 (d, J=7.58 Hz, 1 H); ESI—
MS m/z [M+H]+ 374.4.
E 34: (S)—5-(l-((l-(2-chloroacetyl)pyrrolidin-3 -yl)amino)isoquinolin
yl)-2,4-dihydro-3H—l,2,4-triazolone
To a solution of (S)(1-(pyrrolidinylamino)isoquinolinyl)-1H—1,2,4-triazol-
(4H)—one (0.028 g, 0.093 mmol) in DCM (5mL) was added 2,6-dimethylpyridine
(0.054 mL, 0.465 mmol) at 0°C followed by 2—chloroacetyl chloride (0.011 mL, 0.140
mmol). The reaction mixture was allowed to warm to room temperature overnight, then
quenched with water, and trated to s. The crude residue was purified by
preparative HPLC to give a TFA salt of the title compound as yellow a solid (1.9 mg). ESI—
MS m/z [M+H]+ 373.4.
EXAMPLE 35: (S)—5-(1-((1-acryloylpiperidinyl)oxy)isoquinolin-3 -yl)-2,4-
dihydro-3H—1,2,4-triazol-3 -one
N’NH
I >20
\ N
| H
To a solution of (S)(1-(piperidinyloxy)isoquinolinyl)-1H—1,2,4-triazol-
(4H)—one (175 mg, 0.562 mmol) in DCM (3 mL) was added 2,6—dimethylpyridine (0.131
mL, 1.124 mmol) at 0°C followed by acryloyl chloride (0.091 mL, 1.124 mmol). The
reaction e was stirred at room temperature ght. The crude reaction mixture was
filtered and purified by preparative HPLC eluting with 20—65% ACN (acid mode) to give a
TFA salt of the title compound. A related compound, (S)(3 -(5-oxo-4,5-dihydro-1H—1,2,4-
triazol-3 -yl)isoquinolinyl)piperidinyl te, was also isolated during the
chromatographic separation. Peak 1: 1H NMR (400 MHz, CD3OD) 5 ppm 1.28 (s, 1 H), 1.53
— 1.67 (m, 1 H), 1.80 (dd, , 3.79 Hz, 1 H), 1.93 — 2.09 (m, 1 H), 2.75 (s, 3 H), 3.03 —
3.17 (m, 1 H), 3.24 (t, J=10.11Hz, 1 H), 3.63 — 3.77 (m, 1 H), 3.86 (d, J=12.88 Hz, 1 H), 4.03
(dt, J=8.46, 4.36 Hz, 1 H), 6.09 (dd, J=10.48, 1.64 Hz, 1 H), 6.70 (dd, J=17.18, 1.77 Hz, 1
H), 7.94 (d, J=8.08 Hz, 1 H), 8.11 (s, 1 H), 8.19 (d, J=8.34 Hz, 1 H), 8.33 (t, J=7.96 Hz, 1 H);
peak 2: 1H NMR (400 MHz, CD3OD) 5 ppm 1.66 — 1.95 (m, 2 H), 1.95 — 2.06 (m, 1 H), 2.12
(d, J=4.29 Hz, 1 H), 2.76 (s, 2 H), 3.39 — 3.51 (m, 1 H), 3.71 — 3.83 (m, 1 H), 4.02 (d, J=9.09
Hz, 1 H), 5.34 (dt, J=8.15, 4.39 Hz, 1 H), 5.88 — 5.99 (m, 1 H), 6.22 (dd, J=17.31, 10.48 Hz, 1
H), 6.49 (dd, 3, 1.52 Hz, 1 H), 7.61 (ddd, J=8.27, 6.88, 1.26 Hz, 1 H), 7.66 — 7.77 (m,
1 H), 7.85 — 7.97 (m, 1 H), 8.16 (d, J=7.83 Hz, 1 H).
EXAMPLE 36: (S)—5-(1-((1-acetylpyrrolidinyl)oxy)isoquinolinyl)-2,4-
dihydro-3H—1,2,4-triazol-3 -one
N»NH
I >20
\ N
o o
,1'CN’4CH3
A solution of (S)(1-(pyrrolidinyloxy)isoquinolinyl)-3H—1,2,4-triazolone
(200 mg, 0.677 mmol) and 2,6—dimethy1pyridine (0.079 mL, 0.677 mmol) in DCM (4 mL)
was mixed for 30 minutes. A freshly prepared mixture of acetyl chloride (80 mg, 1.016
mmol), 2,6—dimethy1pyridine (0.079 mL, 0.677 mmol) in DCM (1 mL) was added se.
The reaction mixture stirred for 20 minutes and then concentrated. The product was purified
using preparative HPLC eluting with a gradient of 25—55% ACN in water (acid mode) to give
a TFA salt of the title compound (15 mg, 7%). 1H NMR (400 MHz, DMSO—dg) 5 ppm 1.93 —
2.06 (m, 3 H), 2.09 — 2.43 (m, 2 H), 3.38 (br s, 4 H), 3.48 — 3.86 (m, 4 H), 3.93 — 4.18 (m, 1
H), 6.04 —6.31 (m, 1 H), 7.63 — 7.74 (m, 1 H), 7.76 — 7.87 (m, 1 H), 7.94 — 8.08 (m, 2 H), 8.18
(dd, J=8.21, 0.88 Hz, 1 H), 11.80 (s, 1 H), 12.04 (br s, 1 H); EST—MS m/z [M+H]+ 340.2.
EXAMPLE 37: (S)—5-(1-((1-propionylpyrrolidinyl)oxy)isoquinolinyl)-2,4-
dihydro-3H—1,2,4-triazol-3 -one
NrNH
I >=o
\ N
o,,, 0
CM,CH3
A solution of (S)—5—(1-(pyrrolidinyloxy)isoquinolinyl)-3H—1,2,4-triazolone
(200 mg, 0.677 mmol) and methy1pyridine (0.079 mL, 0.677 mmol) in DCM (4 mL)
was mixed for 30 minutes. A freshly prepared mixture of propionyl chloride (94 mg, 1.016
mmol), methy1pyridine (0.079 mL, 0.677 mmol) in DCM (1 mL) was added dropwise.
The reaction mixture stirred for 20 minutes and then trated. The product was purified
using preparative HPLC eluting with a gradient of 25—55% ACN in water (acid mode) to give
a TFA salt of the title compound (12 mg, 5%). 1H NMR (400 MHz, DMSO—dg) 5 ppm 0.95 —
1.04 (m, 3 H), 2.16 — 2.40 (m, 4 H), 2.48 — 2.52 (m, 8 H), 2.64 (s, 1 H), 3.13 (dt, J=3.16, 1.71
Hz, 3 H), 3.50 — 3.79 (m, 3 H), 4.11 (s, 10 H), 6.08 — 6.18 (m, 1 H), 7.58 — 7.66 (m, 1 H), 7.76
(t, J=7.19 Hz, 1 H), 7.94 (d, J=5.13 Hz, 2 H), 8.16 (d, J=8.34 Hz, 1 H); EST—MS m/z [M+H]+
354.1.
TABLE 1, below, lists BTK inhibition data for many of the compounds described in
the examples, where larger pICso values represent higher potency. The compounds were
tested in accordance with the assay described on page 42 of the specification.
As used in this specification and the ed claims, singular articles such as “a,”
“an,” and “the,” may refer to a single object or to a plurality of objects unless the t
clearly indicates otherwise. Thus, for example, reference to a ition containing “a
nd” may include a single compound or two or more compounds. It is to be
understood that the above description is intended to be illustrative and not restrictive. Many
ments will be apparent to those of skill in the art upon reading the above description.
Therefore, the scope of the invention should be determined with reference to the appended
claims and includes the full scope of equivalents to which such claims are entitled. The
disclosures of all articles and references, including patents, patent applications and
publications, are herein incorporated by reference in their entirety and for all purposes.
TABLE 1: BTK Inhibition (pICso) for e Compounds
ExlzngFle plcso
1 6.9
2 >89
3 >89
4 >89
>8.6
6 >8.6
7 >89
8 >8.6
9 >8.6
>8.6
11 7.2
12 8.3
13 >8.2
14 >8.6
7.5
Claims (46)
1. A compound of Formula 1, a tautomer thereof or a pharmaceutically acceptable salt of the compound or tautomer, wherein: R1 is selected from hydrogen, halo, and methyl; R2 and R3 are each independently selected from hydrogen, halo, and methyl, or R2 and R3, together with carbon atoms to which they are attached, form a e ring or a pyridine ring in which the benzene ring is optionally substituted with from one to four substituents independently selected from halo, -CN, -OR8, and C1-6 alkyl, and the pyridine ring is optionally substituted with from one to three substituents independently selected from halo, -CN, -OR8, and C1-6 alkyl; R4 has the formula in which indicates a point of attachment; L is selected from –O–, -CH2O-, and –N(R4e)-; R4a is selected from –CH2R5 and ethenyl ally substituted with from one to three substituents independently selected from halo, cyano, and C1-6 alkyl optionally tuted with -N(R11)R12; and (a) R4c is hydrogen, R4e is selected from hydrogen and C1-4 alkyl when L is –N(R4e)-, and R4b and R4d, together with a en atom and carbon atoms to which R4b, R4c, and R4d are respectively attached, form a pyrrolidine ring or a piperidine ring, each ring optionally substituted with from one to six substituents independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl; or (b) R4b is selected from hydrogen and C1-4 alkyl, R4d is en, L is –N(R4e)-, and R4c and R4e, together with the carbon atoms and a nitrogen atom to which R4c, R4d , and R4e are respectively attached, form a pyrrolidine ring or a piperidine ring, each ring optionally substituted with from one to six substituents independently ed from halo, C1-4 alkyl, and C1-4 haloalkyl; or (c) R4d is hydrogen, R4e is selected from hydrogen and C1-4 alkyl when L is –N(R4e )-, and R4b and R4c , together with the nitrogen and carbon atoms to which R4b and R4c are respectively attached, form idine ring or a piperidine ring, each ring optionally substituted with from one to six substituents independently ed from halo, C1-4 alkyl, and C1-4 haloalkyl; R5 is selected from hydrogen, halo, and C1-4 alkyl; R8 is independently selected from hydrogen and C1-6 alkyl; and each R11 and R12 is independently selected from hydrogen and C1-6 alkyl.
2. A compound, tautomer or pharmaceutically acceptable salt according to claim 1, wherein R1 is hydrogen.
3. A compound, tautomer or pharmaceutically acceptable salt according to claims 1 or 2, wherein R2 and R3 are each independently selected from hydrogen, fluoro, chloro, and
4. A compound, tautomer or pharmaceutically acceptable salt according to claims 1 or 2, wherein R2 and R3, together with the carbon atoms to which they are ed, form a benzene ring or a pyridine ring in which the benzene ring is optionally substituted with from one to four substituents independently selected from halo, -CN, -OR8, and C1-6 alkyl, and the pyridine ring is optionally substituted with from one to three substituents independently selected from halo, -CN, -OR8, and C1-6 alkyl.
5. A compound, tautomer or pharmaceutically acceptable salt according to claim 4, wherein the benzene ring or the pyridine ring is ally tuted with one or two substituents ndently selected from fluoro, chloro, and methyl.
6. A compound, tautomer or pharmaceutically acceptable salt according to claims 4 or 5, wherein R2 and R3, together with the carbon atoms to which they are attached, form a benzene ring which is optionally substituted with one or two substituents independently selected from fluoro, , and methyl.
7. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 6, wherein R4a is ethenyl optionally substituted with from one to three methyl groups.
8. A compound, tautomer or ceutically acceptable salt according to claim 7, wherein R4a is unsubstituted l.
9. A compound, tautomer or ceutically acceptable salt according to any one of claims 1 to 6, wherein R4a is –CH2R5 and R5 is halo.
10. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 9, wherein R4c is hydrogen, R4e is selected from hydrogen and C1-4 alkyl when L is –N(R4e )-, and R4b and R4d , together with the nitrogen atom and the carbon atoms to which R4b , R4c , and R4d are tively attached, form a pyrrolidine ring or a piperidine ring, each ring optionally substituted with from one to six substituents independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
11. A compound, tautomer or pharmaceutically acceptable salt according to claim 10, wherein R4b and R4d , together with the nitrogen atom and the carbon atoms to which R4b , R4c , and R4d are tively attached, form a idine ring which is optionally substituted with from one to four substituents independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
12. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 9, wherein R4c is hydrogen, R4e is hydrogen when L is –N(R4e )-, and R4b and R4d , together with the nitrogen atom and the carbon atoms to which R4b , R4c , and R4d are respectively attached, form a pyrrolidine ring or a piperidine ring, each ring optionally substituted with from one to four tuents independently ed from halo, C1-4 alkyl, and C1-4 haloalkyl.
13. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 10 to 12, wherein the ring formed by R4b and R4d , together with the nitrogen atom and the carbon atoms to which R4b , R4c , and R4d are respectively attached, is unsubstituted.
14. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 9, wherein R4b is selected from hydrogen and C1-4 alkyl, R4d is hydrogen, L is -N(R4e )-, and R4c and R4e , together with the carbon atoms and the nitrogen atom to which R4c , R4d , and R4e are respectively ed, form a pyrrolidine ring or a piperidine ring, each ring optionally substituted with from one to six tuents ndently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
15. A compound, tautomer or pharmaceutically acceptable salt according to claim 14, wherein R4c and R4e , together with the carbon atoms and the nitrogen atom to which R4c , R4d , and R4e are respectively attached, form a pyrrolidine ring which is optionally substituted with from one to six substituents independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
16. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 9, wherein R4b is hydrogen, R4d is hydrogen, L is –N(R4e )-, and R4c and R4e , together with the carbon atoms and the nitrogen atom to which R4c , R4d , and R4e are respectively ed, form a pyrrolidine ring or a dine ring, each ring optionally substituted with from one to four substituents independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
17. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 14 to 16, wherein the ring formed by R4c and R4e , together with the carbon atoms and the nitrogen atom to which R4c , R4d , and R4e are respectively attached, is unsubstituted.
18. A compound, er or pharmaceutically acceptable salt according to any one of claims 1 to 9, wherein R4d is hydrogen, R4e is selected from hydrogen and C1-4 alkyl when L is -N(R4e )-, and R4b and R4c , together with the nitrogen and carbon atoms to which R4b and R4c are respectively attached, form a pyrrolidine ring or a piperidine ring, each ring optionally substituted with from one to six substituents independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
19. A compound, tautomer or pharmaceutically acceptable salt ing to claim 18, wherein R4b and R4c , together with the nitrogen and carbon atoms to which R4b and R4c are tively attached, form a pyrrolidine ring which is optionally tuted with from one to six substituents ndently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
20. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 9, wherein R4d is hydrogen, R4e is hydrogen when L is –N(R4e )-, and R4b and R4c , together with the nitrogen and carbon atoms to which R4b and R4c are respectively attached, form a idine ring or a piperidine ring, each ring optionally substituted with from one to four substituents independently selected from halo, C1-4 alkyl, and C1-4 haloalkyl.
21. A compound, tautomer or pharmaceutically able salt according to any one of claims 18 to 20, n the ring formed by R4b and R4c , together with the nitrogen and carbon atoms to which R4b and R4c are respectively attached, is unsubstituted.
22. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 21, wherein L is –N(R4e )-.
23. A compound, tautomer or pharmaceutically acceptable salt according to any one of claims 1 to 13 and 18 to 21, wherein L is selected from –O– and -CH2O-.
24. A nd, tautomer or pharmaceutically acceptable salt according to claim 23, wherein L is–O–.
25. A compound according to claim 1, which is selected from the ing compounds: (R)(1-((1-methacryloylpyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (R)(1-((1-acryloylpyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4-triazol-5(4 H)- one; (R,E )(1-((1-(butenoyl)pyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; 3-(5-oxo-4,5-dihydro-1H-1,2,4-triazolyl)isoquinolinyl)pyrrolidin yl)acrylamide; (S)(1-((1-acryloylpyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4-triazol-5(4 H)- one; (S)(1-(((1-acryloylpyrrolidinyl)methyl)amino)isoquinolinyl)-1H-1,2,4- triazol-5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)methoxy)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)amino)isoquinolinyl)-1H-1,2,4-triazol-5(4 H)- one; (R)(1-((1-acryloylpyrrolidinyl)methoxy)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-((1-methacryloylpyrrolidinyl)amino)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)(methyl)amino)isoquinolinyl)-1H-1,2,4- l-5(4 H)-one; (S)(1-((1-methacryloylpyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-(((1-acryloylpyrrolidinyl)oxy)methyl)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S,E)(1-((1-(4-(dimethylamino)butenoyl)pyrrolidinyl)oxy)isoquinolinyl)- hydro-3H-1,2,4-triazolone; (S,E)(1-((1-(butenoyl)pyrrolidinyl)amino)isoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(8-((1-acryloylpyrrolidinyl)oxy)-1,7-naphthyridinyl)-1H-1,2,4-triazol- 5(4 H)-one; (8-((1-acryloylpyrrolidinyl)amino)-1,7-naphthyridinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)oxy)fluoroisoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; 3-(1-(( trans acryloylmethylpyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4- triazol-5(4 H)-one; 3-(1-(((3 R,4 S)acryloylmethylpyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4- triazol-5(4 ; 3-(1-(((3 S,4 R)acryloylmethylpyrrolidinyl)oxy)isoquinolinyl)-1H-1,2,4- triazol-5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)oxy)fluoroisoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)amino)fluoroisoquinolinyl)-1H-1,2,4- triazol-5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)oxy)chloroisoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)amino)fluoroisoquinolinyl)-1H-1,2,4- triazol-5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)amino)chloroisoquinolinyl)-1H-1,2,4- triazol-5(4 H)-one; (1-((1-acryloylpyrrolidinyl)oxy)chloroisoquinolinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)amino)chloroisoquinolinyl)-1H-1,2,4- triazol-5(4 H)-one; (S)(1-((1-acryloylpyrrolidinyl)amino)methoxyisoquinolinyl)-1H-1,2,4- triazol-5(4 ; (S)(6-((1-acryloylpyrrolidinyl)oxy)methylpyridinyl)-1H-1,2,4-triazol- 5(4 ; (S)(6-((1-acryloylpyrrolidinyl)oxy)pyridinyl)-1H-1,2,4-triazol-5(4 H)-one; (S)(6-((1-acryloylpyrrolidinyl)oxy)methylpyridinyl)-1H-1,2,4-triazol- 5(4 H)-one; (S) (1-((1-(2-chloroacetyl)pyrrolidinyl)oxy)isoquinolinyl)-2,4-dihydro-3H- triazolone; (S)(1-((1-(2-chloroacetyl)pyrrolidinyl)amino)isoquinolinyl)-2,4-dihydro-3H- 1,2,4-triazolone; (S)(1-((1-acryloylpiperidinyl)oxy)isoquinolinyl)-2,4-dihydro-3H-1,2,4- triazolone; (S)(1-((1-acetylpyrrolidinyl)oxy)isoquinolinyl)-2,4-dihydro-3H-1,2,4-triazol- 3-one; (S)(1-((1-propionylpyrrolidinyl)oxy)isoquinolinyl)-2,4-dihydro-3H-1,2,4- triazolone; a tautomer of any one of the aforementioned compounds; a stereoisomer of any one of the aforementioned nds or tautomers; and a pharmaceutically acceptable salt of any one of the aforementioned compounds, tautomers or stereoisomers.
26. A compound according to claim 1, which is (S)(1-((1-acryloylpyrrolidin yl)oxy)isoquinolinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the compound or tautomer.
27. A compound according to claim 1, which is (S)(1-((1-acryloylpyrrolidin yl)amino)isoquinolinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the compound or tautomer.
28. A nd according to claim 1, which is (S)(8-((1-acryloylpyrrolidinyl)oxy)- 1,7-naphthyridinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically able salt of the compound or tautomer.
29. A compound according to claim 1, which is (S)(8-((1-acryloylpyrrolidin yl)amino)-1,7-naphthyridinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the compound or tautomer.
30. A compound according to claim 1, which is (S)(1-((1-acryloylpyrrolidinyl)oxy)- 8-fluoroisoquinolinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the compound or tautomer.
31. A compound according to claim 1, which is (S)(1-((1-acryloylpyrrolidin yl)amino)fluoroisoquinolinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the compound or tautomer.
32. A compound according to claim 1, which is (S)(1-((1-acryloylpyrrolidinyl)oxy)- 7-chloroisoquinolinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the compound or er.
33. A compound ing to claim 1, which is (S)(1-((1-acryloylpyrrolidin yl)amino)chloroisoquinolinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the compound or tautomer.
34. A compound according to claim 1, which is (S)(1-((1-acryloylpyrrolidinyl)oxy)- 8-chloroisoquinolinyl)-1H-1,2,4-triazol-5(4 H)-one, a tautomer thereof, or a pharmaceutically acceptable salt of the nd or er.
35. A compound ing to claim 1, which is (S)(1-((1-acryloylpyrrolidin yl)amino)chloroisoquinolinyl)-1H-1,2,4-triazol-5(4 , a er thereof, or a pharmaceutically acceptable salt of the compound or tautomer.
36. A pharmaceutical ition comprising: a compound, tautomer or pharmaceutically able salt as defined in any one of claims 1 to 35; and a pharmaceutically able excipient.
37. A compound, tautomer or pharmaceutically acceptable salt as defined in any one of claims 1 to 35, for use as a medicament.
38. Use of a compound, tautomer or pharmaceutically acceptable salt as defined in any one of claims 1 to 35 in the manufacture of a medicament for ting BTK.
39. Use of a compound, tautomer or ceutically acceptable salt as defined in any one of claims 1 to 35, in the manufacture of a ment for treating a disease, disorder or condition associated with BTK.
40. Use of a nd, er or pharmaceutically able salt as defined in any one of claims 1 to 35, in the manufacture of a medicament for treating a disease, disorder or condition selected from Type I ensitivity reactions, autoimmune diseases, inflammatory disorders, cancer, and non-malignant proliferative disorders.
41. Use of a compound, tautomer or pharmaceutically acceptable salt as defined in any one of claims 1 to 35, in the manufacture of a medicament for treating a disease, disorder or condition selected from allergic rhinitis, asthma, atopic dermatitis, rheumatoid arthritis, multiple sclerosis, systemic lupus erythematosus, lupus nephritis, psoriasis, immune thrombocytopenic purpura, inflammatory bowel disease, chronic obstructive pulmonary e, Sjögren’s syndrome, ankylosing spondylitis, Behcet’s disease, graft versus host disease, pemphigus vulgaris, idiopathic plasmacytic lymphadenopathy, atherosclerosis, myocardial tion, and thrombosis.
42. Use of a compound, tautomer or pharmaceutically acceptable salt as defined in any one of claims 1 to 35 in the manufacture of a medicament for treating a disease, disorder or condition selected from B-cell lymphoma, chronic cytic leukemia, and multiple myeloma.
43. A combination comprising a compound, tautomer or pharmaceutically acceptable salt as defined in any one of claims 1 to 35, and at least one additional pharmacologically active agent.
44. A combination according to claim 43, n the additional pharmacologically active agent is a disease modifying antirheumatic drug (DMARD).
45. A combination according to claim 44, wherein the DMARD is methotrexate.
46. The compound ing to claim 1, substantially as herein described with reference to any one of the Examples thereof.
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US201361776445P | 2013-03-11 | 2013-03-11 | |
US61/776,445 | 2013-03-11 | ||
PCT/US2014/022801 WO2014164558A1 (en) | 2013-03-11 | 2014-03-10 | Pyridinyl and fused pyridinyl triazolone derivatives |
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NZ710852B2 true NZ710852B2 (en) | 2021-03-19 |
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