NZ615210B2 - Azole derivative - Google Patents
Azole derivative Download PDFInfo
- Publication number
- NZ615210B2 NZ615210B2 NZ615210A NZ61521012A NZ615210B2 NZ 615210 B2 NZ615210 B2 NZ 615210B2 NZ 615210 A NZ615210 A NZ 615210A NZ 61521012 A NZ61521012 A NZ 61521012A NZ 615210 B2 NZ615210 B2 NZ 615210B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- group
- hydroxy
- difluoro
- compound
- tetramethylcyclohexyl
- Prior art date
Links
- 150000007980 azole derivatives Chemical class 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 claims abstract description 341
- 239000011780 sodium chloride Substances 0.000 claims abstract description 60
- 150000003839 salts Chemical class 0.000 claims abstract description 54
- 201000004384 alopecia Diseases 0.000 claims abstract description 31
- 231100000360 alopecia Toxicity 0.000 claims abstract description 31
- 239000003814 drug Substances 0.000 claims abstract description 12
- -1 1,3-benzodioxolanyl group Chemical group 0.000 claims description 106
- TUCNEACPLKLKNU-UHFFFAOYSA-N ethanone Chemical compound C[C]=O TUCNEACPLKLKNU-UHFFFAOYSA-N 0.000 claims description 49
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 15
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 14
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 13
- 125000004076 pyridyl group Chemical group 0.000 claims description 12
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 125000005843 halogen group Chemical group 0.000 claims description 8
- 239000004480 active ingredient Substances 0.000 claims description 7
- CTAPFRYPJLPFDF-UHFFFAOYSA-N Isoxazole Chemical compound C=1C=NOC=1 CTAPFRYPJLPFDF-UHFFFAOYSA-N 0.000 claims description 6
- 125000003277 amino group Chemical group 0.000 claims description 6
- 125000003118 aryl group Chemical group 0.000 claims description 6
- 125000001072 heteroaryl group Chemical group 0.000 claims description 6
- 125000000842 isoxazolyl group Chemical group 0.000 claims description 6
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 5
- 125000000714 pyrimidinyl group Chemical group 0.000 claims description 5
- 125000000719 pyrrolidinyl group Chemical group 0.000 claims description 5
- 125000001424 substituent group Chemical group 0.000 claims description 5
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 claims description 4
- 125000001041 indolyl group Chemical group 0.000 claims description 4
- 125000005494 pyridonyl group Chemical group 0.000 claims description 4
- RWRDLPDLKQPQOW-UHFFFAOYSA-N pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 claims description 4
- 125000005418 aryl aryl group Chemical group 0.000 claims description 3
- KXDAEFPNCMNJSK-UHFFFAOYSA-N benzamide Chemical compound NC(=O)C1=CC=CC=C1 KXDAEFPNCMNJSK-UHFFFAOYSA-N 0.000 claims description 3
- 125000002098 pyridazinyl group Chemical group 0.000 claims description 3
- IRZKMFNDDJGNME-NRFANRHFSA-N 2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)-1-[(2S)-2-[5-[(3,4,5-trimethoxyphenoxy)methyl]-1,2-oxazol-3-yl]pyrrolidin-1-yl]ethanone Chemical compound COC1=C(OC)C(OC)=CC(OCC=2ON=C(C=2)[C@H]2N(CCC2)C(=O)C(F)(F)C2(O)CC(C)(C)CC(C)(C)C2)=C1 IRZKMFNDDJGNME-NRFANRHFSA-N 0.000 claims description 2
- 125000005947 C1-C6 alkylsulfonyloxy group Chemical group 0.000 claims description 2
- 241001024304 Mino Species 0.000 claims description 2
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 claims description 2
- GCNTZFIIOFTKIY-UHFFFAOYSA-N 1H-pyridin-4-one Chemical compound OC1=CC=NC=C1 GCNTZFIIOFTKIY-UHFFFAOYSA-N 0.000 claims 1
- FXAZPTAOQVPRAZ-NRFANRHFSA-N 2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)-1-[(2S)-2-[5-(phenoxymethyl)-1,2-oxazol-3-yl]pyrrolidin-1-yl]ethanone Chemical compound C1C(C)(C)CC(C)(C)CC1(O)C(F)(F)C(=O)N1[C@H](C2=NOC(COC=3C=CC=CC=3)=C2)CCC1 FXAZPTAOQVPRAZ-NRFANRHFSA-N 0.000 claims 1
- KWMWOAPLSZBDAS-SFHVURJKSA-N 2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)-1-[(2S)-2-[5-(phenoxymethyl)-1,3,4-oxadiazol-2-yl]pyrrolidin-1-yl]ethanone Chemical compound C1C(C)(C)CC(C)(C)CC1(O)C(F)(F)C(=O)N1[C@H](C=2OC(COC=3C=CC=CC=3)=NN=2)CCC1 KWMWOAPLSZBDAS-SFHVURJKSA-N 0.000 claims 1
- ZCYSMHMFPHODME-IBGZPJMESA-N C1C(C)(C)CC(C)(C)CC1(O)C(F)(F)C(=O)N1[C@H](C2=NOC(COC=3N=CC=CC=3)=C2)CCC1 Chemical compound C1C(C)(C)CC(C)(C)CC1(O)C(F)(F)C(=O)N1[C@H](C2=NOC(COC=3N=CC=CC=3)=C2)CCC1 ZCYSMHMFPHODME-IBGZPJMESA-N 0.000 claims 1
- ITKYPAAMEDNRCJ-SFHVURJKSA-N C1C(C)(C)CC(C)(C)CC1(O)C(F)(F)C(=O)N1[C@H](C2=NOC(COC=3N=CC=CN=3)=C2)CCC1 Chemical compound C1C(C)(C)CC(C)(C)CC1(O)C(F)(F)C(=O)N1[C@H](C2=NOC(COC=3N=CC=CN=3)=C2)CCC1 ITKYPAAMEDNRCJ-SFHVURJKSA-N 0.000 claims 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims 1
- 102100014139 FKBP1A Human genes 0.000 abstract description 4
- BLKNOVDRFRHCTP-SFHVURJKSA-N 1-[(2S)-2-[5-[(3,4-dimethoxyphenoxy)methyl]-1,3,4-thiadiazol-2-yl]pyrrolidin-1-yl]-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone Chemical compound C1=C(OC)C(OC)=CC=C1OCC1=NN=C([C@H]2N(CCC2)C(=O)C(F)(F)C2(O)CC(C)(C)CC(C)(C)C2)S1 BLKNOVDRFRHCTP-SFHVURJKSA-N 0.000 abstract 2
- IZQLJVNWGSKPHE-FQEVSTJZSA-N 1-[(2S)-2-[5-[(3,4-dimethoxyphenoxy)methyl]-1,3-oxazol-2-yl]pyrrolidin-1-yl]-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone Chemical compound C1=C(OC)C(OC)=CC=C1OCC1=CN=C([C@H]2N(CCC2)C(=O)C(F)(F)C2(O)CC(C)(C)CC(C)(C)C2)O1 IZQLJVNWGSKPHE-FQEVSTJZSA-N 0.000 abstract 2
- UPOILGSZTBWGJW-FQEVSTJZSA-N 1-[(2S)-2-[5-[(3,4-dimethoxyphenoxy)methyl]-1,3-thiazol-2-yl]pyrrolidin-1-yl]-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone Chemical compound C1=C(OC)C(OC)=CC=C1OCC1=CN=C([C@H]2N(CCC2)C(=O)C(F)(F)C2(O)CC(C)(C)CC(C)(C)C2)S1 UPOILGSZTBWGJW-FQEVSTJZSA-N 0.000 abstract 2
- DUBUTXOMIKLOHU-IBGZPJMESA-N 2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)-1-[(2S)-2-[5-(pyrimidin-5-yloxymethyl)-1,2-oxazol-3-yl]pyrrolidin-1-yl]ethanone Chemical compound C1C(C)(C)CC(C)(C)CC1(O)C(F)(F)C(=O)N1[C@H](C2=NOC(COC=3C=NC=NC=3)=C2)CCC1 DUBUTXOMIKLOHU-IBGZPJMESA-N 0.000 abstract 2
- XOZZPNYSQIRLEN-SFHVURJKSA-N C1=C(OC)C(OC)=CC=C1OCC1=NN=C([C@H]2N(CCC2)C(=O)C(F)(F)C2(O)CC(C)(C)CC(C)(C)C2)N1 Chemical compound C1=C(OC)C(OC)=CC=C1OCC1=NN=C([C@H]2N(CCC2)C(=O)C(F)(F)C2(O)CC(C)(C)CC(C)(C)C2)N1 XOZZPNYSQIRLEN-SFHVURJKSA-N 0.000 abstract 2
- 108010006877 Tacrolimus Binding Protein 1A Proteins 0.000 abstract 1
- 230000000069 prophylaxis Effects 0.000 abstract 1
- VLKZOEOYAKHREP-UHFFFAOYSA-N hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 86
- XEKOWRVHYACXOJ-UHFFFAOYSA-N acetic acid ethyl ester Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 74
- 239000000243 solution Substances 0.000 description 68
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 66
- 239000000203 mixture Substances 0.000 description 64
- 239000002904 solvent Substances 0.000 description 60
- GHXZTYHSJHQHIJ-UHFFFAOYSA-N Exidine Chemical compound C=1C=C(Cl)C=CC=1NC(N)=NC(N)=NCCCCCCN=C(N)N=C(N)NC1=CC=C(Cl)C=C1 GHXZTYHSJHQHIJ-UHFFFAOYSA-N 0.000 description 46
- 239000008079 hexane Substances 0.000 description 43
- 210000004209 Hair Anatomy 0.000 description 42
- 235000002639 sodium chloride Nutrition 0.000 description 38
- 238000010898 silica gel chromatography Methods 0.000 description 36
- 239000011541 reaction mixture Substances 0.000 description 35
- 239000011734 sodium Substances 0.000 description 35
- 239000012044 organic layer Substances 0.000 description 34
- 239000012043 crude product Substances 0.000 description 32
- 238000005160 1H NMR spectroscopy Methods 0.000 description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 27
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 26
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 26
- 235000019341 magnesium sulphate Nutrition 0.000 description 26
- 238000000034 method Methods 0.000 description 26
- UIIMBOGNXHQVGW-UHFFFAOYSA-M NaHCO3 Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 25
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 24
- HEDRZPFGACZZDS-MICDWDOJSA-N cdcl3 Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 24
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 22
- 230000003698 anagen phase Effects 0.000 description 21
- 239000002253 acid Substances 0.000 description 20
- 230000004936 stimulating Effects 0.000 description 20
- ZMANZCXQSJIPKH-UHFFFAOYSA-N triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 18
- 230000018109 developmental process Effects 0.000 description 17
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 238000000605 extraction Methods 0.000 description 14
- MZRVEZGGRBJDDB-UHFFFAOYSA-N n-butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 14
- 239000003921 oil Substances 0.000 description 14
- 235000019198 oils Nutrition 0.000 description 14
- 238000003756 stirring Methods 0.000 description 14
- 239000012267 brine Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 13
- 230000001264 neutralization Effects 0.000 description 13
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N Triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 12
- HEDRZPFGACZZDS-UHFFFAOYSA-N chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 235000017557 sodium bicarbonate Nutrition 0.000 description 12
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 12
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- YSHOWEKUVWPFNR-UHFFFAOYSA-N Burgess reagent Chemical compound CC[N+](CC)(CC)S(=O)(=O)N=C([O-])OC YSHOWEKUVWPFNR-UHFFFAOYSA-N 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 10
- YMWUJEATGCHHMB-UHFFFAOYSA-N methylene dichloride Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 10
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 10
- 125000006239 protecting group Chemical group 0.000 description 10
- 238000010992 reflux Methods 0.000 description 10
- DTQVDTLACAAQTR-UHFFFAOYSA-N trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 10
- 102000009339 Proliferating Cell Nuclear Antigen Human genes 0.000 description 9
- 108010009063 Proliferating Cell Nuclear Antigen Proteins 0.000 description 9
- 235000019441 ethanol Nutrition 0.000 description 9
- 230000001939 inductive effect Effects 0.000 description 9
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 8
- 108060002921 FKBP2 Proteins 0.000 description 8
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- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 description 7
- WKBOTKDWSSQWDR-UHFFFAOYSA-N bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000004210 ether based solvent Substances 0.000 description 7
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 7
- 230000002401 inhibitory effect Effects 0.000 description 7
- 229910052740 iodine Inorganic materials 0.000 description 7
- 229910000027 potassium carbonate Inorganic materials 0.000 description 7
- 230000003797 telogen phase Effects 0.000 description 7
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 6
- JOXIMZWYDAKGHI-UHFFFAOYSA-N P-Toluenesulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 6
- 210000003491 Skin Anatomy 0.000 description 6
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- 238000005917 acylation reaction Methods 0.000 description 6
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 6
- WVDDGKGOMKODPV-UHFFFAOYSA-N benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 6
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- LCZDCKMQSBGXAH-AWEZNQCLSA-N 3-[[3-[(2S)-2-amino-2-carboxyethyl]-5-methyl-2,6-dioxopyrimidin-1-yl]methyl]-5-phenylthiophene-2-carboxylic acid Chemical compound O=C1C(C)=CN(C[C@H](N)C(O)=O)C(=O)N1CC1=C(C(O)=O)SC(C=2C=CC=CC=2)=C1 LCZDCKMQSBGXAH-AWEZNQCLSA-N 0.000 description 5
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- RYPWQHONZWFXBN-UHFFFAOYSA-N dichloromethyl(methylidene)-$l^{3}-chlorane Chemical compound ClC(Cl)Cl=C RYPWQHONZWFXBN-UHFFFAOYSA-N 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
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- 230000003779 hair growth Effects 0.000 description 4
- NPZTUJOABDZTLV-UHFFFAOYSA-N hydroxybenzotriazole Substances O=C1C=CC=C2NNN=C12 NPZTUJOABDZTLV-UHFFFAOYSA-N 0.000 description 4
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- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 125000004043 oxo group Chemical group O=* 0.000 description 1
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000004894 pentylamino group Chemical group C(CCCC)N* 0.000 description 1
- 239000000137 peptide hydrolase inhibitor Substances 0.000 description 1
- 125000005561 phenanthryl group Chemical group 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229940114148 picric acid Drugs 0.000 description 1
- NQRYJNQNLNOLGT-UHFFFAOYSA-N piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229910000343 potassium bisulfate Inorganic materials 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002335 preservative Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000006308 propyl amino group Chemical group 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000003180 prostaglandins Chemical class 0.000 description 1
- 239000012460 protein solution Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000001725 pyrenyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N rac-1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- 239000003247 radioactive fallout Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 125000005920 sec-butoxy group Chemical group 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000008159 sesame oil Substances 0.000 description 1
- 235000011803 sesame oil Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001187 sodium carbonate Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- BZKBCQXYZZXSCO-UHFFFAOYSA-N sodium hydride Inorganic materials [H-].[Na+] BZKBCQXYZZXSCO-UHFFFAOYSA-N 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007901 soft capsule Substances 0.000 description 1
- WSWCOQWTEOXDQX-UHFFFAOYSA-N sorbic acid Chemical compound CC=CC=CC(O)=O WSWCOQWTEOXDQX-UHFFFAOYSA-N 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
- 229960002920 sorbitol Drugs 0.000 description 1
- 239000000021 stimulant Substances 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000007940 sugar coated tablet Substances 0.000 description 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 125000004213 tert-butoxy group Chemical group [H]C([H])([H])C(O*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- JXIYXIWBJYCVST-QMMMGPOBSA-N tert-butyl (2S)-2-(2,2-dibromoethenyl)pyrrolidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCC[C@H]1C=C(Br)Br JXIYXIWBJYCVST-QMMMGPOBSA-N 0.000 description 1
- 125000006318 tert-butyl amino group Chemical group [H]N(*)C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- FCIMVIXBNIWHMA-UHFFFAOYSA-N tert-butyl-diphenyl-prop-2-ynoxysilane Chemical compound C=1C=CC=CC=1[Si](OCC#C)(C(C)(C)C)C1=CC=CC=C1 FCIMVIXBNIWHMA-UHFFFAOYSA-N 0.000 description 1
- 125000005922 tert-pentoxy group Chemical group 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000004588 thienopyridyl group Chemical group S1C(=CC2=C1C=CC=N2)* 0.000 description 1
- 125000004587 thienothienyl group Chemical group S1C(=CC2=C1C=CS2)* 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 238000004809 thin layer chromatography Methods 0.000 description 1
- 239000005495 thyroid hormone Substances 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 230000001960 triggered Effects 0.000 description 1
- 229950002929 trinitrophenol Drugs 0.000 description 1
- 239000011778 trisodium citrate Substances 0.000 description 1
- 150000003648 triterpenes Chemical class 0.000 description 1
- 230000000261 vasodilator Effects 0.000 description 1
- 239000003071 vasodilator agent Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/14—Drugs for dermatological disorders for baldness or alopecia
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
- C07D417/04—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings directly linked by a ring-member-to-ring-member bond
Abstract
Provided are: a novel compound which binds to FKBP12 or a pharmaceutically acceptable salt thereof; and a novel therapeutic agent which contains the compound or a pharmaceutically acceptable salt thereof and is useful for the prophylaxis or treatment of alopecia. Specifically provided is a compound which is represented by formula (1) or a pharmaceutically acceptable salt thereof. (In formula (1), R represents a group represented by formula (2) or formula (3).) Compounds of the invention include: (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)-1,3,4-thiadiazol-2-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)-4H-1,2,4-triazol-3-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)oxazol-2-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)thiazol-2-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, and (S)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)-1-(2-(5 -((pyrimidin-5-yloxy)methyl)isoxazol-3-yl)pyrrolidin-1-yl)ethanone. which is represented by formula (1) or a pharmaceutically acceptable salt thereof. (In formula (1), R represents a group represented by formula (2) or formula (3).) Compounds of the invention include: (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)-1,3,4-thiadiazol-2-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)-4H-1,2,4-triazol-3-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)oxazol-2-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, (S)-1-(2-(5-((3,4-dimethoxyphenoxy)methyl)thiazol-2-yl)pyrrolidin-1-yl)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone, and (S)-2,2-difluoro-2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)-1-(2-(5 -((pyrimidin-5-yloxy)methyl)isoxazol-3-yl)pyrrolidin-1-yl)ethanone.
Description
DESCRIPTION
AZOLE DERIVATIVE
TECHNICAL FIELD
The present invention relates to novel compounds that bind to FKBP12 or
pharmaceutically acceptable salts f, as well as agents for preventing or treating
alopecia that contain such novel compounds or pharmaceutically acceptable salts thereof as
an active ingredient.
BACKGROUND ART
Alopecia sts itself in various types including male pattern alopecia, alopecia
senilis, alopecia areata, and alopecia in postmenopausal women. While alopecia is not life-
threatening in many cases, the e is cosmetically ssing and often involves mental
pain; under the circumstances, effective agents for preventing or treating alopecia are desired.
Hairs are born again through three stages, the anagen, catagen, and telogen phases
(hair . One hair cycle usually takes a period of two to seven years to complete and if
something abnormal occurs to shorten this period, hair growth is arrested before reaching
maturity. As a consequence, more hairs will fall out to result in a lower hair density or the
ess per hair will decrease. Factors that upset the rhythm of hair cycle include
androgens such as testosterone and dihydrotestosterone, radiation, medicaments such as
anticancer drugs, aging, and stress.
Studies using many diverse compounds are being made with a View to creating
eutics for alopecia, and the immunosuppressant FKS06 (tacrolimus), for example, has
been reported to have a recognizable hair—development stimulating effect in a pluralilty of
animal models (see Patent nt 1 and Non-Patent Document 1.) The action of FK506
has been confirmed in models of alopecia areata which is considered an autoimmune disease
(see Non-Patent Documents 2 and 3), as well as in hair pment tests using normal mice
and models of alopecia medicamentosa (see Non—Patent Documents 4 and 5.) However, due
to its immunosuppressing action, FK506 has high risk for side-effects, so there is desired a
safer compound that is effective as a eutic for alopecia without presenting the
immunosuppressing action.
A plurality of compounds that bind to immunophilin FKBP12 (an FK506 binding
protein with a molecular weight of 12 kDa) t exerting the immunosuppressing action
have recently been found (see Patent Documents 2-10.) Some of those derivatives have been
disclosed to show a hair-development stimulating action (see Patent Documents 11 and 12.)
Other derivatives, however, have not been ed to show any hair-development
stimulating action and much s unclear about the relationship between the activity of
binding to immunophilin FKBP12 and the hair-development stimulating activity. What is
more, the ed FKBP12 binding compounds are not disclosed to have the same azole
structures as specified in the present invention.
CITAITON LIST
PATENT LITERATURE
Patent Document 1: Japanese Patent No. 2925285 (EP – A – 423714)
Patent Document 2:
Patent nt 3:
Patent Document 4:
Patent Document 5:
Patent Document 6: WO 45006
Patent Document 7:
Patent Document 8:
Patent Document 9: JP 2004-123556 A
Patent Document 10: JP 2004-123557 A
Patent Document 11: WO 98/55090
Patent Document 12: (US 2010/0022604A)
NON-PATENT LITERATURE
Non-Patent nt 1: Yamamoto et al., “J. Invest. Dermatol.”, 102, 160-164,
1994
Non-Patent Document 2: Freyschmidt-Paul et al., “Eur. J. Dermatol.”, 11, 405-409,
2001
Non-Patent Document 3: McElwee et al., “Br. J. Dermatol.”, 137, 491-497, 1997
Non-Patent Document 4: Jianga et al., “J. Invest. Dermatol.”, 104, 523-525, 1995
Non-Patent Document5: Maurer et al., “Am. J. Pathol.”, 150, 1433-1441, 1997
SUMMARY OF INVENTION
TECHNICAL PROBLEM
An object of the present invention is to find novel compounds that bind to FKBP12
or pharmaceutically acceptable salts thereof and e new therapeutics useful in
preventing or treating alopecia, or to provide the public with a useful alternative.
SOLUTION TO PROBLEM
The present ors found that compounds represented by the following formula
(1) or ceutically acceptable salts thereof can solve the aforementioned problem and
this g has led to the accomplishment of the present ion.
ingly, the present invention relates to:
(I) A compound represented by formula (1)
[where R1 represents either the following formula (2) or (3)
ring A represents either one of the rings represented by the following formula (4)
[00 1 5 ]
('4)
X represents -(CH2)m-X1-(CH2)n';
X1 represents a bond, -o—, —NRaC(=O)-, -C(=O)NRb—, —NR°S(=O)2 —, or -S(=O)2NRd-;
Ra, Rb, R°, and Rd which may be the same or different each represent a hydrogen atom or a
CH; alkyl group;
m and n which may be the same or ent each represent an integer of 0-3;
R2 represents an aryl group, a aryl group (said aryl or heteroaryl group may be
substituted by 1-3 substituent groups selected from the group consisting of a halogen atom, a
C1_6 alkyl group, and a C1_6 alkoxy group (said CH, alkyl group or C1-6 alkoxy group may be
tuted by 1-3 substituent groups selected from the group consisting of a halogen atom
and a hydroxy group)), a 1,3-benzodioxolanyl group, an indolyl group, a morpholyl group, a
hydroxy group, a C1_6 alkyl group (said C1_6 alkyl group may be substituted by 1-2 hydroxy
groups), an amino group, a H, alkylamino group, a di-C1_6 alkylamino group, a C1_6
alkoxy group, a CH, alkylsulfonyloxy group, a pyridonyl group, or a pyrimidinonyl group] or
a pharmaceutically acceptable salts thereof;
(I’) The compound or pharmaceutically acceptable salt thereof according to (I),
wherein R2 ents an aryl group, a heteroaryl group (said aryl or heteroaryl group may be
substituted by 1—3 tuent groups selected from the group consisting of a C1_6 alkyl group
and a C1_6 alkoxy group (said C1-6 alkyl group or C14, alkoxy group may be substituted by 1-3
substituent groups selected from the group ting of a halogen atom and a hydroxy
group)), a 1,3 -benzodioxolanyl group, an indolyl group, a lyl group, a hydroxy group,
a C1-6 alkyl group (said CH; alkyl group may be substituted by 1-2 hydroxy groups), an
amino group, a mono-C14, alkylamino group, a di—C1_6 alkylamino group, a C1-6 alkoxy group,
or a C1_6 alkylsulfonyloxy group;
(II) The compound or pharmaceutically acceptable salt thereof according to (I) or (I’),
wherein X is a bond, -CH2‘O-, -CH2-, —(CH2)2—, -(CH2)3—, —O-, -CH2-NHC(=O)-,
-CH2-NHC(=O)-CH2-, or -CH2-NHS(=O)2—;
(III) The compound or pharmaceutically able salt thereof according to (I) or (I’),
wherein X is -CH20— 0r —CH2-;
(IV) The compound or pharmaceutically acceptable salt thereof according to any one of (I) to
(III) and (I’), wherein R1 is a (2);
(V) The compound or pharmaceutically acceptable salt thereof according to any one of (I) to
(IV) and (I’), wherein ring A is either one of the rings of the following formula (5):
far. 0
(VI) The nd or pharmaceutically acceptable salt thereof according to any
one of (I) to (V) and (1’), n R2 is a phenyl group, a pyridyl group, a pyridazinyl group
or a pyrimidyl group (said phenyl group, pyridyl group or pyrimidyl group may be
substituted by 1-3 halogen atoms or methoxy groups), a pyridonyl group, or a pyrimidinonyl
grOUP;
(VII) The compound or pharmaceutically acceptable salt f according to (VI), wherein
R2 is a phenyl group or a pyridyl group (said phenyl group or pyridyl group may be
substituted by 1-3 methoxy groups);
(VIII) The compound according to (I), which is
(S)—1—(2-(5-((3,4-dimethoxyphenoxy)methyl)isoxazol-3 —y1)pyrrolidin— l -yl)—2,2-difluoro(1 -
hydroxy-3,3,5,5-tetramethylcyclohexy1)ethanone,
(S)-2,2—difluoro—2—(1 -hydroxy—3 ,3 ,5 ,5 -tetramethylcyclohexyl)—l -(2-(5-((pyridin-3 -
yloxy)methyl)isoxazol-3 -yl)pyrrolidin— 1 —yl)ethanone,
(S)-2,2-difluoro(1 —hydroxy-3 ,3 ,5,5—tetramethylcyclohexyl)- 1 —(2-(5-((3 ,4,5—
trimethoxyphenoxy)methyl)isoxazolyl)pyrrolidin- l -yl)ethanone,
(S)-N-((3 -(1 -(2,2-difluoro(1 xy-3 ,3 ,5 ,5 -tetramethylcyclohexyl)acety1)pyrrolidin—2-
yl)isoxazoly1)methy1)benzamide,
(S)—N—((3 -(1 -(2,2-difluoro(1 -hydroxy-3 ,3 ,5 ,5-tetramethylcyclohexy1)acetyl)pyrrolidin-2—
y1)isoxazolyl)methy1)benzenesulfonamide,
(S)— 1 -(2-(5-((dimethylamino)methyl)isoxazol-3 -yl)pyrr01idin- l -y1)-2,2-difluoro(1 -
y-3,3,5,5-tetramethylcyclohexyl)ethanone,
(S)-3 -(1 -((cyclohexylmethy1)su1fonyl)pyrrolidin—Z—y1)(3 ,4—
dimethoxyphenoxy)methy1)isoxazole,
(S)—1-(2—(5-((3 ,4-dimethoxyphenoxy)methyl)-1 ,3 ,4—oxadiazoly1)pyrrolidiny1)-2,2-
o(1 -hydroxy-3 ,3 ,5 ramethylcyclohexyl)ethanone,
(S)—2,2-difluoro(1 -hydroxy-3 ,3 ,5 ramethy1cyclohexyl)— 1 -(2-(5—(phenoxymethy1)-
1,3 ,4-oxadiazolyl)pyrrolidin—l —yl)ethanone,
(S)—N—((5—(1 -(2,2-difluoro(1 xy-3 ,3 ,5 ,5 -tetramethylcyclohexyl)acety1)pyrrolidin
y1)-1 ,3 ,4-oxadiazolyl)methy1)benzamide,
(S)-l-(2-(5-((dimethylamino)methyl)-1,3 ,4-oxadiazol—2-y1)pyrrolidinyl)-2,2-difluoro(l -
hydroxy—3,3,5,5-tetramethylcyclohexyl)ethanone,
(S)(2—(3 -((3 ethoxyphenoxy)methyl)-1,2,4-oxadiazoly1)pflrolidiny1)-2,2-
difluoro-Z-(l -hydr0xy-3 ,3 ,5 ,5—tetramethy1cyclohexy1)ethanone,
(S)(2-(5 -((3 ,4-dimethoxyphenoxy)methyl)—1,-methy1-1H—pyrazol-3 —y1)pyrrolidin— 1 -y1)—2,2-
difluoro-Z-(l -hydroxy—3 ,3 ,5 ,5 -tetramethylcyclohexyl)ethanone,
(S)—1—(2-(3 -((3 ,4-dimethoxyphenoxy)methyl)isoxazol-5 -y1)pyrrolidin—1-y1)—2,2-difluoro(1—
hydroxy-3 ,3 ,5 ,5—tetramethy1cyclohexyl)ethanone,
(S)-1 -(2-(5-((3 ,4-dimethoxyphenoxy)methyl)—1H—pyrazol-3 -y1)pyrrolidin—1 -yl)-2,2—difluoro-
2-(1 -hydroxy-3 ,3 ,5 ,5-tetramethylcycIohexy1)ethanone,
(S)— 1 -((3 ,4-dimethoxyphenoxy)methyl)-1 ,3 adiazol-2—y1)pyrrolidin-' 1 -y1)-2,2-
difluoro-Z-(l -hydroxy-3 ,3 ,5 ,5 —tetramethylcyclohexy1)ethan0ne,
(S)(2-(5—((3,4-dimethoxyphenoxy)methyl)—4H-1 ,2,4-triazol-3 -y1)pyrrolidiny1)-2,2-
difluoro-Z-(l -hydroxy-3 ,3 ,5 ramethy_lcyclohexyl)ethan0ne,
(S)(2-(5-((3 ethoxyphenoxy)methyl)— 1 -methy1—1H-1 riazol-3 -y1)pyrrolidin
yl)-2,2-difluoro(1 -hydroxy-3 ,3 ,5,5-tetramethy1cyclohexy1)ethanone,
(S)—1-(2-(5-((3,4-dimethoxyphenoxy)methyl)0xazoly1)pyrrolidinyl)-2,2—difluoro(1 -
hydroxy-3 ,3 ,5 ,5 -tetramethy1cyclohexy1)ethan0ne,
(S)—1-(2-(5 -((3 ,4-dimethoxyphenoxy)methyl)thiazoly1)pyrrolidin—1 -yl)-2,2-difluoro-2—(1 -
hydroxy—3 ,3 ,5 ,5-tetramethylcyclohexyl)ethanone,
(S)-2,2-difluoro—2-(1-hydroxy-3 ,3 ,5 ,5-tetramethylcyclohexyl)(2-(5-
(phenoxymethyl)isoxazol—3-y1)pyrrolidin—1-y1)ethanone,
(S)-2,2-difluoro(l -hydroxy-3 ,3 ,5 ,5 -tetramethylcyclohexyl)— 1 -(2-(5 -((pyrimidin-5 -
yloxy)methy1)isoxazol-3 -y1)pyrr01idin— 1 -yl)ethanone,
(S)((3 -(1-(2,2-difluoro(1-hydroxy-3,3 ,5,5-tetramethylcyclohexyl)acety1)pyrr01idin
y1)is0xazol-5—y1)methy1)pyrimidin-4(1 H)—one,
(S)-2,2-diflu0ro(1 xy-3 ,3 ,5 ,5 -tetramethylcyclohexy1)(2-(5-((pyrimidin-4—
yloxy)methy1)isoxazol—3—y1)pyrr01idin-1 -yl)ethanone,
(S)-2,2—difluoro-1—(2-(5-((3-flu0rophen0xy)methyl)isoxazol-3 -y1)pyrr01idiny1)—2-(1—
hydroxy-3 ,3 ,5 ,5-tetramethy1cyclohexy1)ethanone, or
(S)- l -((3 -(l—(2,2-difluoro(1-hydroxy-3 ,3 ,5,5 —tetramethylcyclohexyl)acetyl)pyrrolidin-2—
yl)isoxazolyl)methyl)pyridin—4(l H)-one, or
a pharmaceutically acceptable salt thereof;
(IX) A pharmaceutical comprising as an active ingredient the compound or pharmaceutically
acceptable salt thereof according to any one of (I) to (VIII) and (I’); and
(X) An agent for preventing or treating alopecia which comprises as an active ingredient the
compound or pharmaceutically acceptable salt thereof according to any one of (I) to (VIII)
and (I’).
ADVANTAGEOUS EFFECTS OF ION
The compounds of the present invention and pharmaceutically acceptable salts
thereof bound to FKBP12 and inhibited its peptidyl-prolyl isomerase (rotamase) activity. In
addition, the compounds and pharmaceutically acceptable salts f had such high
solubility that they showed profiles preferred for external use. Moreover, the compounds and
pharmaceutically acceptable salts thereof showed an outstanding hair-development
stimulating action.
The compounds of the present invention and pharmaceutically acceptable salts
thereof do not markedly suppress the protein phosphatase calcineurin, so they have no serious
immunosuppressing ty. Consequently, it is expected that preparations containing the
compounds or pharmaceutically acceptable salts thereof exhibit high safety e when
used as agents for preventing or treating alopecia.
BRIEF DESCRIPTION OF DRAWINGS
shows the hair development stimulating effect of nd I in shaven
mouse .
shows the hair pment stimulating effect of Compound 40 in shaven
mouse models.
shows the anagen induction stimulating effect of Compounds 40, 52, 59, 61,
63, and 64 in shaven mouse models.
PTION OF EMBODIMENTS
The ing are the definitions of several important terms as used in this
specification.
The term “halogen atom” means a e atom, a chlorine atom, a bromine atom,
or an iodine atom.
The term “C1_6 alkyl group” means a straight or branched alkyl group having 1 to 6
carbon atoms and examples include a methyl group, an ethyl group, a propyl group, a butyl
group, a pentyl group, a hexyl group, an isopropyl group, an isobutyl group, a tert—butyl
group, a sec-butyl group, an isopentyl group, a neopentyl group, a tert-pentyl group, a 1,2-
dimethylpropyl group, etc.
The term “C1-6 alkoxy group” means a straight or branched alkoxy group having 1 to
6 carbon atoms and examples include a methoxy group, an ethoxy group, a propoxy group, a
butoxy group, a pentyloxy group, a hexyloxy group, an isopropoxy group, an oxy
group, a tert-butoxy group, a sec—butoxy group, an isopentyloxy group, a neopentyloxy
group, a tert-pentyloxy group, a 1,2-dimethylpropoxy group, etc.
The term “aryl group” means an aromatic carbocyclic group, which is monocyclic to
tetracyclic, and that is composed of 6 to 18 carbon atoms, and es include a phenyl
group, a naphthyl group, an anthryl group, a phenanthryl group, a tetracenyl group, a pyrenyl
group, etc.
The term “heteroaryl group” means a monocyclic or fused cyclic aromatic
heterocyclic group and examples include a pyridyl group, a pyridazinyl group, a pyrimidinyl
group, a nyl group, a thienyl group, a yl group, a thiazolyl group, an azolyl
group, a pyrazolyl group, an imidazolyl group, a furyl group, an oxazolyl group, an
isoxazolyl group, an oxadiazolyl group, a 1,3,4-thiadiazolyl group, a 1,2,3—triazolyl group, a
triazolyl group, a tetrazolyl group, a quinolyl group, an isoquinolyl group, a
naphthyridinyl group, a quinazolinyl group, a benzofilranyl group, a benzothienyl group, an
indolyl group, a benzoxazolyl group, a benZoisoxazolyl group, a lH—indazolyl group, a 2H—
indazolyl group, a benzimidazolyl group, a benzoxadiazolyl group, a benzothiadiazolyl
group, an indolizinyl group, a benzofurazanyl group, a thienopyridyl group, a
-10..
pyrazolopyridyl group, an imidazopyridyl group, an imidazopyrazinyl group, a
pyrazolopyrimidinyl group, a triazolopyrimidinyl group, a thienothienyl group, an
imidazothiazolyl group, etc.
The term “mono-CM alkylamino group” means an amino group substituted by a
single C1-6 alkyl group as defined above and examples include a amino group, an
mino group, a propylamino group, abutylamino group, a pentylamino group, a
hexylamino group, an isopropylamino group, an isobutylamino group, a tert-butylamino
group, a sec-butylamino group, an isopentylamino group, a neopentylamino group, a tert-
pentylamino group, a 1,2—dimethylpropylamino group, etc.
The term _6 alkylamino group” means an amino group substituted by two
respectively independent C1-6 alkyl groups as defined above and examples include a
dimethylamino group, a diethylamino group, a dipropylamino group, a dibutylamino group, a
dipentylamino group, a dihexylamino group, a diisopropylamino group, a diisobutylamino
group, a di—tert-butylamino group, a di-sec-butylamino group, a di—isopentylamino group, a
di-neopentylamino group, a t-pentylamino group, a di-l,2-dimethylpropylamino group,
an ethylmethylamino group, an isopropylmethylamino group, an isobutylisopropylamino
group, etc.
The term “CM alkylsulfonyloxy group” means a yloxy group substituted by
the CM, alkyl group defined above and examples include a methylsulfonyloxy group, an
ethanesulfonyloxy group, a n—propylsulfonyloxy group, an isopropylsulfonyloxy group, a n-
butylsulfonyloxy group, a 2-methyl—n—butylsulfonyloxy group, a tert-butylsulfonyloxy group,
a n—pentylsulfonyloxy group, a n-hexylsulfonyloxy group, etc.
In the compounds of the t invention,
X is preferably a bond, -CH20-, -CH2—, —(CH2)2-, —(CH2)3-, -O-, -CH2-NHC(=O)-,
-CH2-NHC(=O)-CH2-, or -CH2-NHS(=O)2-; and
X is more preferably -CH20-;
in addition, preferably,
R1 is formula (2); and
ring A is either one of the rings ented by the following formula (5)
<5») ;
and R2 is a phenyl group or a pyridyl group (said phenyl group or l group may be
substituted by 1-3 y groups.)
The term “alopecia” means a condition in which some or all hairs have shedded or
disappeared or have changed to thinner and shorter hairs. Alopecia manifests itself in various
types which include, but are not particularly limited to, male pattern alopecia, heic
alopecia, alopecia senilis, alopecia areata, alopecia medicamentosa due, for example, to the
administration of cancer control drugs, scarring alopecia, and postpartum alopecia which
manifests itself after delivery. Alopecia often results from a disrupted hair cycle and is
triggered by a shortened anagen phase due, for example, to the arrest of cell proliferation.
The term “hair cycle” refers to the growth cycle of hairs and represents a period
consisting of three , (1) the anagen phase (the period during which the hair follicle
repeats division to cause active growth of the hair; the anagen phase lasts from two to six
years for the hairs on the scalp); (2) the catagen phase (the period during which the hair
growth is lessened and the follicle shrinks; the catagen phase lasts from one to two weeks for
scalp hair); and (3) the telogen phase (the period during which the follicle is completely
degenerated and remains dormant; the n phase lasts from three to four months for scalp
hair.) Usually, '80 to 90 percent of the hairs are in the anagen phase and less than one percent
are in the catagen phase, with the remainder in the telogen phase. Alopecia involves
abnormalities in the hair cycle and, particularly in male n alopecia, the duration of the
anagen phase is shortened and the hair makes a transition to the catagen/telogen phase before
it grows to a thicker terminal hair, so the percentage of hairs in the telogen phase increases
and the al hair s to a fine vellus.
[003 5] The term “agents for preventing or treating alopecia” according to the present
invention refers to drugs that have either one of the ing actions: (1) inducing a
transition from the telogen phase to the anagen phase (i.e., inducing hair development); (2)
stimulating hair growth; (3) extending the anagen phase; and (4) inhibiting, delaying or
reducing the shedding of. hairs; drugs having more than one action are desired.
[003 6] The term “pharmaceutically acceptable salts” means salts that are acceptable from a
pharmaceutical viewpoint. es include: salts with acids such as acetic acid, propionic
acid, butyric acid, formic acid, trifluoroacetic acid, maleic acid, ic acid, citric acid,
c acid, succinic acid, ethylsuccinic acid, malonic acid, lactobionic acid, gluconic acid,
glucoheptonic acid, c acid, methansulfonic acid, ethanesulfonic acid, 2-
hydroxyethanesulfonic acid, benzenesulfonic acid, p-toluenesulfonic acid (tosylic acid),
laurylsulfuric acid, malic acid, aspartic acid, glutamic acid, adipic acid, cysteine, N-
acetylcysteine, hydrochloric acid, romic acid, phosphoric acid, sulfuric acid,
hydroiodic acid, nicotinic acid, oxalic acid, picric acid, thiocyanic acid, noic acid,
acrylic acid polymer, and carboxyvinyl polymer; salts with inorganic bases such as lithium
salts, sodium salts, potassium salts, and calcium salts; and salts with organic amines (e.g.,
morpholine and piperidine) and amino acids.
[003 7] The compounds of the present invention and pharmaceutically acceptable salts
thereof can occur in various solvated forms. They may also be ted to hydrates from
the viewpoint of applicability as pharmaceuticals.
[003 8] The compounds (1) of the present ion or pharmaceutically acceptable salts
thereofmay be used as they are or, alternatively, they may be ated into preparations
together with pharmaceutically able carriers by per se known techniques.
Pharmaceutically able carriers are various organic or inorganic materials commonly
used as pharmaceutical necessities depending on whether they are used in solid ations
or liquid preparations: examples for use in the former case include excipients (e.g., lactose,
saccharose, D-mannitol, starch, corn starch, crystalline cellulose, light silicic anhydride, etc.),
lubricants (e.g., magnesium stearate, calcium stearate, talc, colloidal silica, etc), binders
(e.g., crystalline cellulose, saccharose, D—mannitol, dextrin, hydroxypropyl cellulose,
hydroxypropyl methylcellulose, polyvinylpyrrolidone, starch, sucrose, gelatin,
cellulose, carboxymethylcellulose sodium, etc.), disintegrants (e.g., starch,
carboxymethylcellulose, ymethylcellulose calcium, croscarmelose sodium,
carboxymethyl starch sodium, low-substitution ypropyl cellulose, etc.); examples for
use in liquid preparations include solvents (e.g., water for injections, alcohols, ene
glycol, macrogol, sesame oil, corn oil, etc.), solvent ers (e.g., polyethylene glycols,
propylene glycol, itol, benzyl benzoate, ethanol, minomethane, cholesterol,
anolamine, sodium carbonate, sodium citrate, etc.), suspending agents (e.g., surfactants
such as stearyl triethanolamine, sodium lauryl sulfate, lauryl aminopropionic acid, lecithin,
benzalkonium de, benzethonium chloride, glyceryl monostearate, etc. or hydrophilic
polymers such as nyl alcohol, polyvinylpyrrolidone, carboxymethylcellulose sodium,
methylcellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, etc.), ic agents
(e.g., e, D—sorbitol, sodium chloride, glycerin, D-mannitol, etc.), buffering agents (e.g.,
phosphates, acetates, carbonates, citrates, etc.), and soothing agents (e.g., benzyl alcohol,
etc.) In the course of pharmaceutical formulation procedure, various additives may be used
depending on the need, as exemplified by preservatives (e.g., ybenzoate esters,
chlorobutanol, benzyl alcohol, phenethyl alcohol, dehydroacetic acid, sorbic acid, etc.),
antioxidants (e.g., sulfites, ic acid, etc.), coloring agents, sweetening agents,
adsorbents, wetting agents, etc.
The compounds of the present invention or pharmaceutically acceptable salts thereof
may be administered orally or non-orally (e.g., intravenously, topically, rectally, etc.)
Dosage forms of their administration may be exemplified by tablets (including sugar-coated
tablets and film-coated tablets), powders, es, dusts, troches, capsules (including soft
capsules), liquids, injections (e.g., subcutaneous, intravenous, intramuscular, intraperitoneal,
etc.), external preparations (e.g., for nasal administration, transdermal application, ointments,
creams, etc.), suppositories (e.g., rectal, vaginal, etc.), slow-release preparations (e.g., slow-
release microcapsules, etc.), pellets, drops, etc.; each of these dosage forms may be
manufactured by common pharmaceutical formulation techniques (e.g., the methods
described in the 15th Japanese Pharmacopoeia.) External ations are a preferred dosage
form due, for example, to the capability of being ly administered to the affected area,
ease of administration, and a lower risk of causing ic side s. The compounds can
also be used as oral ations since they exert no immunosuppressing action and the risk
for systemic side effects is low.
The thus produced agents ofthe present invention for preventing or treating alopecia
are administered in doses that can be appropriately adjusted depending on such factors as the
, age, and sex of the patient. Specifically, if the agents are used as an external
preparation, the compounds ofthe present invention are incorporated at concentrations of
0.0001% to 20% and the resulting preparation can be stered once to several times a
day. Upon administration, the external preparation is applied to hairs in amounts ranging
from about 0.00001 to about 4 mg/cmz, preferably from about 0.01 to about 1 mg/cmz.
If the agents are to be used as an oral preparation, they may be administered once to
several times a day, with the compounds ofthe t ion being contained in daily
amounts of 1 to 1000 mg/kg per adult.
Moreover, the compounds of the present invention can be used in combination with
other active ingredients for agents that are effective in preventing or treating alopecia. Drugs
that can be combined include but are not d to minoxidil and finasteride. The
compounds can also be combined with such drugs as other hair growth stimulants/hair
restorers, vasodilators, anti-androgens, cyclosporine derivatives, anti-microbials, anti-
inflammatories, thyroid hormone derivatives, prostaglandin agents or antagonists, ids,
and triterpenes. The compounds and the other active ingredients for agents that are effective
in preventing or treating alopecia may be used as separate preparations or, alternatively, they
may be used as a single combined drug.
While the method for producing the compounds of the present invention is described
below, it is by no means limited to the following examples. Starting nds used to
produce the compounds can be readily prepared by known methods or per se known
methods. Production methods A to E are described below, with focus being placed on the
construction of ring A. As for the addition of the organic e -R1, the following
description assumes a method of ucing the same at the last stage but it may be
introduced before constructing ring A or at an intermediate stage. on or transformation
of the organic residue -X—R2 may also be carried out at any suitable stage. Any reactive
functional group that occurs in respective steps may be protected and deprotected as
appropriate.
Production method A
Among the compounds ented by the general formula (1), those in which ring
A is represented by the following formula:
(Y; represents an oxygen atom, NMe, or NH) may be produced by, for example, the
following method.
(Scheme A)
(Step A- 1) (Step A-Z)
[HZ—w.“We (Step A-3)
fix,R2 H2N\
Y1 N
e/NxOMe (3'3) \ _...__ (3‘5)
P X,R2—..
(am.4)
(3'1)
(a-z)
(Step A-4)- (Step A-LS)
w—fi M N
/ \Y‘
(38) I:
I /R
Xe"RZ X R2 Rl x 2
(3-7) (a—9)
{a6)
(where R1, R2 and X have the same meanings as defined above; P represents an amino
protecting group (e.g., a t-butoxycarbonyl group, a benzyloxycarbonyl group, etc.); Y1
represents an oxygen atom, NMe or NH; and L ents a hydroxy group or a leaving
group (e.g., chlorine, bromine, iodine, etc.))
(1) Step A-l
To obtain a compound represented by formula (a-2), a compound represented by
formula (a-l) is reacted with methoxymethylamine h commonly practiced acylation.
For example, the carboxylic acid compound represented by formula (a—l) is reacted with
thionyl chloride, chloride, etc. so that it is converted to the corresponding acid halide
or, alternatively, the compound of formula (a-l) is reacted with ethyl chloroforrnate, yl
chloroformate, etc. so that it is converted to the corresponding mixed acid anhydride; the
resulting product is then reacted with methoxymethylamine either in a solvent or with no
solvent used, optionally in the presence of a base. The compound represented by formula (a-
2) can also be obtained by reacting the compound (a—l) with methoxymethylamine using a
condensing agent such as ohexylcarbodiimide or l-ethy1-3 -(3-
dimethylaminopropyl)carbodiimide. The t may be a halogen-based solvent such as
methylene chloride or chloroform, an ether—based solvent such as tetrahydrofuran or dioxane,
an aromatic hydrocarbon—based solvent such as e or xylene, an c polar t
such as N,N—dimethyformamide, or mixtures of these solvents. The base may be an organic
base such as pyridine or triethylamine, or an inorganic base such as sodium hydroxide or
sodium hydrogencarbonate.
(2) Step A—2
To obtain a compound represented by formula (a-4), a compound represented by
formula (a-3) may be reacted With an organometallic t such as MeLi, n-BuLi or
EtMgBr in a solvent to generate an acetylide, which is then reacted with the compound of
formula (a—2). The t may be an based solvent such as tetrahydrofuran or dioxane,
an aliphatic hydrocarbon solvent such as hexane or pentane, or mixtures of these solvents.
(3) Step A-3
To obtain a compound represented by formula (a-6), the compound of formula (a—4)
is reacted with a nd represented by formula (a—S) or a salt thereof either in a solvent
or with no solvent used, optionally in the presence of an acid or a base. The solvent may be
an l such as methanol or ethanol, an ether-based solvent such as tetrahydrofuran or
dioxane, an aprotic polar solvent such as N,N—dimethyformamide, water, or es ofthese
solvents. The acid may be an inorganic acid such as hydrochloric acid or sulfuric acid, or an
organic acid such as acetic acid or p-toluenesulfonic acid. The base may be an organic base
such as pyridine or triethylamine, or an inorganic base such as AcONa, NaOMe, NazSO4, or
K2CO3.
(4) Step A-4
To obtain a compound ented by formula (a-7), the amino protecting group in
the compound of formula (a-6) is d for deprotection. If the protecting group is a t-
butoxycarbonyl group, deprotection may be effected by carrying out reaction with an acid
such as trifluoroacetic acid or hloric acid; if the protectging group is a
benzyloxycarbonyl group, ection may be effected either by enation in the
presence of a catalyst such as ium—carbon or platinum oxide or by reaction with an acid
such as HBr-AcOH. If other protecting groups are to be removed, methods commonly
practiced to remove the amino protecting group of interest may be implemented.
(5) Step A-5
To obtain a compound represented by formula (a—9), a compound represented by
formula (a—8) (where L is an OH group) is treated by the same method as described in Step
A—l so that it is converted to an acid halide and then reacted with the compound of formula
(a-7), or it may be directly reacted with the compound of formula (a-7) in the presence of a
condensing agent. Alternatively, a compound represented by formula (a-9) may be obtained
by reacting a compound of formula (a—8) (where L is a leaving group) with the nd of
formula (a—7) in a solvent, optionally in the presence of a base.
Production method B
Among the compounds represented by the general formula (1), those in which ring
A is represented by the following formula:
-an<g: \‘fq
may be produced by, for example, the following method.
e 8)
(Step B- 1) (Step B-2)
‘ M(Step B--3)
(b1’
(b~2) (b3)
(Step B4) (Step B-S)
WfiNH% —, Ma \ I
X’RZ XflR? x—a-Rz
(ID-5) (b-S) (15.7)
(Step B-6)
R14, N
(6-7) \ i
"mmii_5. i
R1 x-v-Rz
(5-8)
(Where R1, R2 and X have the same gs as defined above; P represents an
amino protecting group (e.g., a t-butoxycarbonyl group, a benzyloxycarbonyl group, etc); L
represents a hydroxy group or a leaving group (e.g., chlorine, bromine, iodine, etc.))
(1) Step B—l
To obtain a compound represented by formula (b-2), a compound represented by
formula (b—l) is reacted with CBr4 and PPh3 in a halogen-based solvent such as methylene
chloride or chloroform by the method described in l of Medicinal Chemistry, 1990,
vol. 33, page 3190 or a modified version ofthe method.
(2) Step B-2
To obtain a compound represented by formula (b-3), the nd of formula(b-2)
is reacted with a base in a solvent. The base may be MeLi, n-BuLi, sec-BuLi, Pr)2, or
the like. The solvent may be an ether-based solvent such as tetrahydrofuran or dioxane, an
aliphatic hydrocarbon solvent such as hexane tane, or mixtures of these solvents.
(3) Step B-3
To obtain a compound ented by formula (b-5), the compound (b-3) may be
reacted with an organometallic t such as MeLi, n-BuLi or EtMgBr in a solvent to
generate an acetylide, which is then reacted with a compound represented by (b—4). The
t may be an ether-based solvent such as tetrahydrofuran or dioxane, an aliphatic
hydrocarbon solvent such as hexane or pentane, or mixtures of these solvents. To obtain a
compound represented by formula (b-S), an acetylide corresponding to the compound of
a (b—3) generated in situ by the reaction described in Step B-2 may be reacted with the
compound of formula (b-4).
(4) Step B—4
To obtain a compound represented by formula (b-6), the compound of forrnuola (b—
) is reacted with hydroxylamine or a salt thereof either in a solvent or with no solvent used,
optionally in the ce of an acid or a base. The solvent may be an alcohol such as
methanol or l, an ether-based solvent such as tetrahydrofilran or dioxane, an aprotic
polar solvent such as N,N-dimethyformamide, water, or mixtures ofthese solvents. The acid
may be an inorganic acid such as hydrochloric acid or sulfuric acid, or an organic acid such
as acetic acid or p-toluenesulfonic acid. The base may be an c base such as pyridine or
triethylamine, or an inorganic base such as AcONa, NaOMe, NaZSO4, or K2C03.
(5) Step B-5
A compound represented by formula (b-7) is obtained from the compound of
formula (b—6) by the same method as described in Step A-4.
(6) Step 3-6
A compound represented by formula (b-8) is obtained from the compound of
formula (b-7) by the same method as described in Step A-S.
Production method C
Among the nds represented by the l formula (1), those in which ring
A is represented by the following formula:
(where Y2 represents an oxygen atom or a sulfur atom) may be produced by, for
example, the following method.
(Scheme C)
(Step C—l) (Step C-2)
(Step C-3)
W H H
2 CHN N
\NHz ‘3 X’Rz M \NH
\ OH .........__, “i 0 42-32.... ’2 ..___._..,...
P 0
P P O XIRZ
(a4) (c4) (c—3)
0% \NN (Step c 4) 0% \N- N (Step c 5)-
ii RTL
Y J42 fi Y ”/4 N
2 [N
P (3-8)
X”R2 X’R2 Y24
- i521 X’Rz
(c4) (c-S)
(c-6)
(where R1, R2 and X have the same meanings as defined above; P represents an
amino protecting group (such as a t-butoxycarbonyl group, a benzyloxycarbonyl group, etc);
Y2 represents an oxygen atom or a sulfur atom; L represents a hydroxy group or a leavting
group (e.g., chlorine, bromine, iodine, etc.))
(1) Step C-l
A compound represented by formula (0-1) is obtained from the nd of
formula (a—l) and hydrazine by the commonly practiced acylation which is described in Step
A- 1 .
(2) Step C-2
A compound represented by formula (c-3) is obtained from the compounds of
formula (c-l) and (0-2) by the commonly practiced acylation which is described in Step A-l.
(3) Step C—3
Among the compounds represented by formula (0-4), a nd Where Y2 is an
oxygen atom is obtained by subjecting the compound of formula (c-3) to cyclodehydration in
a solvent using Burgess reagent or CBr4, PPh3, imidazole, etc. The solvent may be a
halogen-bassed solvent such as methylene chloride or chloroform, or an aromatic
hydrocarbon solvent such as toluene or xylene.
Among the compounds represented by a (0-4), a compound Where Y2 is a
sulfur atom is obtained by reacting the compound of a (c—3) with Lawesson’s reagent
or the like in a t. The solvent may be a halogen-bassed solvent such as methylene
chloride or chloroform, or an aromatic hydrocarbon solvent such as toluene or xylene.
(4) Step C—4
A nd represented by formula (c—5) is obtained from the compound of
formula (0-4) by the same method as described in Step A—4.
(5) Step C—S
A compound represented by formula (0—6) is obtained from the compound of
formula (c—5) by the same method as described in Step A-S.
Production method D
Among the nds represented by the general formula (1), those in which ring
A is represented by the ing formula:
N3. .. .
fl/ 1
(where Y3 represents a hydrogen atom or a Me group) may be produced by, for
example, the following method.
-22_
e D)
(Step D-l)
o * H
Wk /Y23 . Nx. /v3
» N . N
N ‘
H H
E) 0H
m E 0.
(3-1) (CM)
. (cl-2)
(Step D-3) (Step 134)
Rq-L
-——-—-» (a8)
(6-5)
(Where R1, R2 and X have the same meanings as defined above; P represents an
amino protecting group (such as a t-butoxycarbonyl group, a benzyloxycarbonyl group, etc.);
Y3 represents a hydrogen atom or a Me group; L represents a hydroxy group or a leaving
group (e.g., ne, bromine, iodine, etc.))
(1) Step D-l
A compound represented by formula (d-2) can be obtained from the compound of
formula (a—l) by reacting it with a hydrazine compound of formula (d-l) by the commonly
practiced acylation Which is described in Step A-l; alternatively, the compound of formula
(a- 1) may be reacted with a protected form of hydrazine corresponding to the hydrazine
compound of formula (d-l) and then deprotected.
(2) Step D-2
A compound represented by formula (d-4) is obtained from the compound of
formula (d-2) and a cyano compound of formula (d—3) by means of heating in a t,
optionally in the presence of an acid or a base. The solvent may be an alcohol such as
ol or butanol, or an ether-based solvent such as dioxane or ylether. The acid
may be an organic acid such as acetic acid. The base may be an inorganic base such as
NaOMe or K2CO3. The reaction may be med at a temperature ranging from the
solvent’s reflux temperature to 220°C under atmospheric or superatmospheric pressure or
under microwave irradiation.
(3) Step c-3
A compound represented by formula (d-5) is obtained from the compound of
formula (d-4) by the same method as described in Step A-4.
(4) Step C-4
A compound ented by formula (d-6) is obtained from the compound of
formula (d-5) by the same method as described in Step A-S.
Production method E
Among the nds ented by the general formula (1), those in which ring
A is represented by the following formula:
may be produced by, for example, the following method.
(Scheme E)
(Step E-l)
(Step E-2)
HO\N
0%o A (H \No (H \No
5i HZN XWR: /
OH ii 0 hi \N/IA
p AL... P H2N X..R2 '—”'
X..R2
‘5‘”
(e4) (e-S)
(Step 13-3) [Mm (Step E-4) Wm
‘ N N
a M 'l M
——'————.» X’Rz ——_* P waz
(64) (9'5)
(where R1, R2 and X have the same meanings as defined above; P represents an
amino protecting group (such as a t-butoxycarbonyl group, a benzyloxycarbonyl group, etc.);
L represents a y group or a leaving group (e.g., ne, bromine, iodine, etc.»
(1) Step E-l
A compound represented by formula (e-2) can be obtained from the compound of
formula (a-l) by reacting it with a compound of formula (e-l) by the commonly practiced
_24_
acylation which is bed in Step A-l.
(2) Step E-2
A compound represented by formula (e-3) is obtained by subjecting the compound
of formula (6-2) to dehydration in a solvent, optionally in the presence of an acid or a base.
The solvent may be an ether-based solvent such as dioxane or an aromatic hydrocarbon
t such as toluene or xylene. The acid may be an organic acid such as p-toluenesulfonic
acid. The base may be an organic base such as ne or triethylamine or an ammonium
salt such as n-Bu4NF. The on may be performed at a temperature ranging from room
temperature to the solvent’s reflux temperature.
(3) Step E-3
A compound represented by formula (e-4) is obtained from the compound of
formula (e-3) by the same method as described in Step A-4.
(4) Step E-4
A compound represented by formula (e-5) is obtained from the compound of
formula (e-4) by the same method as described in Step A—5.
Production method F
Among the nds ented by the general formula (1), those in which ring
A is represented by the following formula:
(where Y4 represents an oxygen atom or a sulfur atom) may be produced by, for
example, the following method.
(Scheme F)
(Step F-l) (Step F-Z)
Q{Z i2;% 7a Q ~
N? *y l
o 0/ 4
P P
(f1) X’R? XAR
(a4) (f 2) (f-s)
(Step F3)
(Step F4)
[N13Ql
‘xe’R'é xw—Rz
(f4) ,(f~5),
(where R1, R2 and X have the same gs as defined above; P represents an
amino protecting group (such as a t-butoxycarbonyl group a benzyloxycarbonyl group, etc.);
Y4 ents an oxygen atom or a sulfur atom; L represents a hydroxy group or a leaving
group (e.g., chlorine, bromine, iodine, etc.))
(1) Step F-l
A compound represented by formula (f-2) can be obtained from the compound of
formula (a-l) by reacting it with a compound of formula (f-l) by the commonly practiced
acylation which is described in Step A-l.
(2) Step F-2
Among the compounds ented by formula (f-3), a compound where Y4 is an
oxygen atom is obtained by subjecting the compound of formula (f-2) to cyclodehydration in
a solvent using Burgess t or CBr4, PPh3, imidazole, etc. The solvent may be a
halogen-bassed solvent such as methylene de or chloroform, or an aromatic
hydrocarbon solvent such as toluene or xylene.
Among the compounds represented by a (f-3), a compound where Y4 is a
sulfur atom is obtained by reacting the compound of formula (f-2) with Lawesson’s reagent
or the like in a solvent. The solvent may be a halogen-bassed solvent such as methylene
chloride or chloroform, or an aromatic hydrocarbon t such as toluene or xylene.
(3) Step 13—3
—26-
A nd represented by formula (f-4) is obtained from the compound of
formula (f—3) by the same method as described in Step A—4.
(4) Step F—4
A compound represented by a (f—S) is obtained from the compound of
formula (f—4) by the same method as described in Step A-5.
EXAMPLES
On the following pages, the present invention is described in greater detail by means
of working examples and test examples. It should be noted that the compounds of the present
invention are by no means limited to those described in the following working examples.
Unless otherwise noted:
M. S. GEL 0-A (product I CHEMICAL INDUSTRY, LTD.) was
used as a carrier in silica gel chromatography;
Chromatorex NH-DM1020 (product of FUJI SILYSIA CHEMICAL LTD.) was
used as a carrier in NH—form silica gel chromatograpyy;
Silica Gel 60N (product of Kanto al Co., Inc.) or KP-Si120 um silica gel
(product of Biotage) was used as a carrier in neutral silica gel chromatography.
The NMR spectra were those ofproton NMR; tetramethylsilane was used as an
internal reference, with 8 values being indicated in ppm.
MS measurements were med using LC/MS-2010EV (equipped with dual
ESI/APCI source).
Reverse-phae preparative HPLC was performed using GILSON preparative HPLC
system. The following column and solvents were used for preparative purposes.
Column: Waters, SunFire Prep C18, OBD 5.0 um, 30 x 50mm Column
Solvents: CH3CN (0.1% CF3COOH), H20 (0.1% CF3COOH)
The iations used in the g examples have following meanings.
AcOEt: ethyl acetate
APCI: atmospheric pressure chemical ionization
Boc: t-butoxycarbonyl
Brine: saturated aqueous sodium chloride
DBU: diazabicycloundecene
DPPA: diphenylphosphoryl azide
Et3N: triethylamine
EtZO: diethylether
ESI: electrospray ionization
HOBt: 1-hydroxybenzotriazole
MsCl: methanesulfonyl chloride
NMP: N—methyl—pyrrolidone
Pd-C: palladium on carbon
PPh3: triphenylphosphine
PTLC: ative thin-layer chromatography
THF: tetrahydrofuran
WSC: l-ethyl(3-dimethylaminopropyl)carbodiimide hydrochloride
Burgess reagent: methyl N-(triethylammonimnsulfonyl)carbamate
Lawesson’s reagent: 2,4-bis(4-methoxypheny1)-1 -dithiadiphosphetane—2,4-disulfide
s: singlet
br.s.: broad singlet
d: t
dd: double doublet
m: multiplet
Example 1
difluoro-2—( 1-hydroxy-3 ,3 ,5,5—tetramethylcyclohexyl )ethanone g Compound 1 1
Example 1 -( 1)
[0 1 0 1 ]
S 3 4-Dimethox henox meth l rrolidin 1 isoxazole
In an argon here, n—BuLi (147 mL as 2.76 N hexane on) was added to a
solution of 1,2-dimethoxy(propynyloxy)benzene (81.85 g) in THF (1000 mL)
at -60°C to -70°C over 55 minutes and after stirring at the same temperature for 30 minutes, a
solution of (S)-t-butyl 2-(methoxy(methyl)carbamoy1)pyrrolidine-1—carboxy1ate (100.00g) in
THF (600 mL) was added dropwise and temperature was raised to room temperature over 2
hours, followed by stirring at 25°C for 30 minutes. The reaction mixture was added to a
saturated aqueous solution ofNH4Cl (3 L), ice water ( 2 L), hexane (1 L) and AcOEt (1 L);
the organic layer was separated, washed with brine (5 L), water (2 L), and brine (1 L)
successively, dried (MgSO4), filtered and concentrated to give a brown oil (161.24 g), which
was dissolved in EtOH (1000 mL); to the solution, ylamine hydrochloride (53.79 g)
was added and after heating under reflux for 13 hours, the mixture was stirred at room
temperatuare for 13 hours. After reheating under reflux for 6 hours, the reaction e was
trated to give a brown oil, to which HCl (1000 mL as 4.0 N AcOEt solution) was
added and the mixture was stirred at room temperataure for 64 hours. To the reaction
mixture, water (2 L) was added and after separating the c layer, NaOH (230 g) was
added to the aqueous layer under cooling with ice; after extraction with CHC13 (2 L), the
organic layer was dried (Na2804), filtered and concentrated to givd a crude product, which
was further purified by neutral silica gel chromatography CHClg) to give the titled
compound (49.98 g, brown oil.)
1H NMR (200MHz, CHLOROFORM-d) 8 6.78 (d, J = 8.8 Hz, 1 H), 6.57 (d, J = 3.1 Hz,
_29_
1H), 6.45 (dd, J = 3.1, 8.8 Hz, 1 H), 6.31 (3,1 H), 5.07 (s, 2 H), 4.38 - 4.24 (m, 1 H), 3.85 (s,
3 H), 3.84 (s, 3 H), 3.22 - 2.92 (m, 2 H), 2.33 - 1.72 (m, 4 H)
e 1-(2)
difluoro 1-h drox -3 3 5 ameth lc clohex lethanone Com oundl
To a solution of 2,2-difluoro(1-hydroxy-3,3,5,5—tetramethy1cyclohexyl)acetate
(87.83 g) and Et3N (122 mL) in THF (2000 mL), ethyl chloroformate (30.8 mL) was added at
room temperature and the mixture was stirred for 30 minutes. To the reaction mixture, a
THF (500 mL) solution of the compound (89.00 g) obtained in Example 1-(1) was added
dropwise at room temperature over an hour and the mixture was stirred at room ature
for 20 hours. The reaction e was concentrated and AcOEt (2 L) and a saturated
aqueous solution ofNH4C1 (2 L) were added; after filtereing the insoluble matter, the organic
layer was separated and washed with saturated aqueous sodium bicarbonate (2 L), dried
(MgSO4), filtered and concentrated to give a crude product (165.0 g). A similar method was
applied using 2,2-difluoro(1-hydroxy-3,3,5,5-tetramethy1cyclohexyl)acetate (34.64 g) and
(S)((3,4-dimethoxyphenoxy)methyl)(pyrrolidin-2—yl)isoxazole (35.10 g) to give a crude
product (60.10 g), which was combined with the first crude product and further purified by
silica gel chromatography (AcOEt/hexane) and NH—form silica gel chromatography
(AcOEt/hexane); the purified product was recrystallized (EtzO/pentane) to give the titled
compound (134.30 g, colorless powder.)
1H NMR (600MHz, CHLOROFORM-d) 8 6.78 (d, J = 8.7 Hz, 1 H), 6.57 (d, J = 2.8 Hz,
1 H), 6.44 (dd, J = 2.8, 8.7 Hz, 1 H), 6.26 [6.18] (s, l H), 5.43-5.39 [5.60 - 5.55] (m, 1 H),
.11 - 5.00 (m, 2 H), 4.23 — 4.13 (m, 1 H), 3.99 — 3.71 (m, 2 H), 3.86 (s, 3 H), 3.84 (s, 3 H),
2.34 - 0.78 (m, 22 H)
m.p. 99.0-101.0°C
Example2
-2 2-Difluoro—2- l—h drox -3 3 5 5-tetrameth 1c clohex l -1— 2- 5-
lox meth lisoxazol l rrolidin—l- lethanone Com ound 4O
Example 2—(1)
[01 07]
>821.
S -t-But 12- h drox imino meth 1 rrolidine-l-carbox late
To a solution of (S)—t-butylformylpyrrolidinecarboxylate (40.94 g) in ne
(411 mL), hydroxylamine monohydrochloride (28.56 g) was added at 0°C and the e
was stirred at room temperature for 17 hours. The reaction mixture was added to a mixture
of AcOE (1.5 L) and hydrochloric acid (2 L, 3.0 N). The organic layer was separated,
washed with saturated aqueous sodium bicarbonate (1 L), dried (MgSO4), filtered and
trated to give the titled compound (39.78 g, colorless solid.)
ESI+ 237(M+Na)+
Example 2-(2)
[O 1 09]
ylate
To a DMF (60 mL) solution of the compound (8.57 g) obtained in Example 2-(1),
NCS (5.341 g) was added in small portions at 0°C and the mixture was stirred at room
ature for an hour. The on mixture was cooled to 0°C and after adding a solution
of 3-(prop—2-yn-l-yloxy)pyridine (2.663 g) in THF (5 mL) and a solution of Et3N (5.6 mL) in
THF (15 mL), the resulting mixture was stirred at room temperature for 14 hours. The
reaction mixture was added to ted aqueous sodium bicarbonate (200 mL), followed by
extraction with AcOEt (200 mL). The resulting organic layer was washed with brine
(200 mL), dried (MgSO4), filtered and trated to give a crude product, which was
further purified by neutral silica gel chromatography (AcOEt/hexane) to give the titled
compound (3.81 g, pale yellow solid.)
1H NMR (200 MHz, CHLOROFORM-d) 8 8.42-8.26 (m, 2 H), 7.30-7.20 (m, 2 H), 6.39-6.19
(m, 1 H), 5.18 (br s, 2 H), 5.10-4.86 (m, 1 H), 3.65-3.35 (m, 2 H), 2.44—1.83 (m, 4 H), 1.59—
1.14 (m, 9 H)
Example 2-(3)
' ' rrolidin l isoxazole
To an AcOEt (20 mL) solution of the nd (3.81 g) obtained in Example 2-2,
HCl (40 mL, 4.0 N AcOEt solution) was added and the mixture was stirred at room
temperature for 40 hours. After concentrating the reaction mixture, saturated aqueous
_32_
sodium bicarbonate (200 mL) and sodium chloride were added, ed by extraction with
CHC13 (200 mL X 2). The resulting organic layer was dried (Na2S04), filtered and
concentrated to give the titled compound (2.614 g, brown oil.)
1H NMR (200 MHz, CHLOROFORM-d) 8 8.42-8.35 (m, 1 H), .25 (m, 1 H), .19
(m, 2 H), 6.35 (s, 1 H), 5.17 (s, 2 H), 4.39-4.26 (m, 1 H), 3.20-2.93 (m, 2 H), 2.30—1.70 (m,
4 H)
Example 2-(4)
-2 2-Diflu0ro l-h drox -3 3 5 5-tetrameth lc clohex l —1— 2— 5-
lox meth lisoxazol l rrolidin—l- lethanone Com ound 40
To a solution of 2,2-difluoro(1 -hydroxy-3,3,5,5-tetramethylcyclohexyl)acetic
acid (3.192 g) and Et3N (4.44 mL) in THF (100 mL), ethyl chloroformate (1.12 mL) was
added at room temperature and the mixture was stirred for an hour. To the reaction mixture,
a THF (50 mL) solution of the compound (2.607 g) obtained in Example 2-(3) was added
dropwise at room temperature and the mixture was stirred at room temperature for 64 hours.
To the reaction mixture, saturated s sodium bicarbonate (200 mL) was added and the
organic layer ted with AcOEt (200 mL) was washed with brine (200 mL), dried
(MgSO4), d and concentrated to give a crude product, which was further purified by
NH-form silica gel chromatography (AcOEt/hexane); the resulting comound was
recrystallized (Eth/pentane) to give the titled compound (2.969 g, colorless powder.)
1H NMR (600 MHz, CHLOROFORM-d) 8 8.41-8.34 (m, 1 H), 8.32 - 8.25 (m, 1 H), 7.28 -
7.20 (m, 2 H), 6.29 [6.20] (s, 1 H), 5.41-5.37 [5.58 - 5.55] (m, 1 H), 5.17-5.12 (m, 2 H), 4.20
- 4.13 (m, 1 H), 3.90 - 3.70 (m, 2 H), 2.33 - 0.82 (m, 22 H)
mp. 102.0-104.0°C
Example 3
-3 3 5 5-tetrarneth lc clohex ,1 2— 5- 3 4 5-
trimethox henox meth lisoxaol 1 rrolidin-l- lethanone Com ound 21
Example 3—(1)
In an argon atmosphere, n-BuLi (10.3 mL, 2.64 N hexane solution) was added
dropwise to a solution of t-butyldiphenyl(prop—2-yn-l-yloxy)silane (8.576 g) in THF
(200 mL) at -78°C over 10 minutes, and after stirring at room temperature for 50 minutes, the
reaction e was added dropwise to a solution of (S)-t-buty1 2-
(methoxy(methyl)carbamoyl)pyrrolidinecarboxy1ate (5.01 g) in THF (200 mL) through a
cannula and temperature was raised to room temperature over an hour. The reaction mixture
was added to a saturated aqueous solution ofNH4C1 (500 mL) and, after extraction with
AcOEt, the c layer was dried (MgSO4), filtered and concentrated to give a crude
product, which was further purified by neutral silica gel chromatography (AcOEt/hexane) to
give the titled compound (5.36 g, colorless oil.)
CI Dual Na)+
Example 3-(2)
[01 19]
S tert-But ldi hen lsil 1 ox meth l rrolidin—2- l isoxazole
To an EtOH (10 mL) solution of the compound (492 mg) obtained in Example 3-(1),
hydroxylamine hydrochloride (139 mg) was added and the mixture was heated under reflux
for 17 hours. To the reaction mixture, saturated aqueous sodium bicarbonate (50 m1) Was
added and the organic layer ted with AcOEt was dried (MgSO4), filtered and
concentrated to give a crude product, which was further purified by neutral silica gel
chromatography ( AcOEtfiMeOH/CHCI3) to give the titled compound (163 mg, brown oil.)
ESI/APCI Dual 407(M+H)+
Example 3-(3)
difluoro 1-h drox -3 3 5 5-tetrameth lc clohex 1 ne
The procedure of Example 1-(2) was repeated, except that the compound obtained in
Examle 1-(1) was replaced by the compound (150 mg) ed in Example 3-(2); this gave
the titled compound (133 mg, colorless amorphous.)
ESI/APCI Dual 639(M+H)+
Example 3-(4)
[01 23]
S -2 2-Difluoro l-h drox -3 3 5 ameth 1c clohex 1 2- 5—
h drox meth 1isoxazol 1 olidin—l- lethanone Com ound 18
To a THF (20 mL) solution of the nd (1.784 g) obtained in Example 3-(3),
n-Bu4NF (3.4 mL, 1.0 M THF solution) was added and the mixture was stirred at room
temperature for 20 minutes. To the reaction e, a saturated aqueous solutioln ofNH4C1
was added and the organic layer extracted with AcOEt was dried (MgSO4), filtered and
concentrated to give a crude product, which was further purified with neutral silica gel
chromatography (AcOEt/hexane) to give the titled compound (1.010 g, ess solid.)
ESI/APCI Dual 426(M+Na)+
Example 3-(5)
(S H31 1-(2,2-Difluoro—2—§ 1-hydroxy-3,3,5,5-
ethylcyclohexyl zacetyl zpyrrolidin-Z-yl )isoxazol-S-yl )methyl methanesulfonate
To an AcOEt (3 mL) solution ofthe compound (45 mg) obtained in Example 3-(4)
and Et3N (31 uL), MsCl (13 uL) was added at 0°C and after stirring the mixture for 30
minutes, MsCl (13 uL) was added and the mixtdure was stirred at 0°C for 30 minutes,
followed by on of Et3N (31 uL) and stirring at 0°C for 2.5 hours. The reaction mixture
was added to water (50 mL) and the organic layer extracted with AcOEt (50 mL) was dried
-36—
(MgSO4), filtered and concentrated to give the titled compound (58 mg, colorless oil.)
ESI/APCI Dual 501(M+Na)+
e 3-(6)
-2 2-Difluoro l-h drox —3 3 5 5-tetrameth lc clohex 1 2— 5- 3 4 5—
hox henox meth lisoxazol—3— l rrolidin-l— lethanone Com ound 21
To a DMF(1.0 mL) solution of the compound (20.8 mg) obtained in Example 3-(5)
and 3,4,5-trimethoxyphenol (16.0 mg), K2C03 (24.0 mg) was added and the mixture was
stirred at room temperature for 30 minutes, then at 50°C for 2 hours. The on mixture
was added to water (20 mL) and the organic layer extracted with AcOEt (20 mL X 2) was
dried (MgSO4), filtered and concentrated to give a crude product, which was further purified
by PTLC rm) to give the titled compound (20.5 mg, colorless amorphous.)
1H NMR (600MHz, CHLOROFORM-d) 5 6.30 - 6.16 (m, 3 H), 5.61 - 5.35 (m, 1 H), 5.14 -
.02 (m, 2 H), 4.25 - 4.12 (m, 1 H), 3.84 (s, 6 H), 3.80 (s, 3 H), 3.94 - 3.68 (m, 2 H), 2.36 -
0.85 (m, 22 H)
ESI/APCI Dual 589(M+Na)+
Example 4
S -N- 3- 1- 2 2-Difluoro 1—h drox -3 3 5 5-
tetrameth lc clohex lacet 1 rrolidin—Z- lisoxazol—S— lmeth lbenzamide Com ound
Example 4-(1)
h drox —3 3 5 ameth lc clohex lethanone
To a mixture of toluene (20 mL) with the compound (657 mg) obtained in Example
3-(4), DBU (368 uL) and DPPA (530 uL) were added and the resulting mixture was stirred at
room temperature for 20 hours. To the reaction mixture, water (50 mL) was added and the
organic layer extracted with AcOEt (50 mL) was washed with brine (50 mL), dried ),
filtered and concentrated to give a crude product, which was further purified by neutral silica
gel chromatography /hexane) to give the titled compound (645 mg, colorless
amorphous.)
ESI/APCI Dual 426(M+H)
Example 4-(2)
S -l— 2- 5- Aminometh l isoxazol-3— l -2 2-difluoro 1-h drox -
3 ,3 5 5-tetramethylcyclohexyl one (Compound 42 2
, ,
To a THF(20 mL) solution of the compound (632 mg) obtained in Example 4-(1),
PPh3 (779 mg) and water (1.0 mL) were added and the mixture was heated under reflux for 3
hours. The reaction mixture was concentrated and after adding water (50 mL), extraction
with AcOEt (50 mL X 2), drying (NaZSO4), filtering and concentrating were performed to
give a crude product, which was further purified by NH-form silica gel chromatography
(AcOEt/hexane) and neutral silica gel chromatography (MeOH/CHClg) to give the titled
nd (463 mg, colorless amorphous.)
ESI/APCI Dual 400(M+H) t
Example 4-(3)
[01 3 5]
S -N- 3- 1- 2 2-Difluoro—2- l-h drox -3 3 5 5-
eth 1c clohex lacet l olidin-2— lisoxazol-S- lmeth mide Com ound
The compound (40 mg) obtained in Example 4—(2) was dissolved in CHC13 (3 ml)
and after adding benzoyl de (17 uL) and Eth (43 uL), the mixture was stirred at room
ature for 19 hours. To the reaction mixture, CHC13 (20 m1) and 5% KHSO4 (20 ml)
were added to separate the organic layer. The resulting organic layer was washed with
saturated aqueous sodium bicarbonate (20 ml) and brine (20 ml), dried (MgSO4), filtered and
concentrated to give a crude product, which was further purified by silica gel
chromatography (AcOEt/hexane) to give the titled compound (43 mg, colorless amorphous.)
ESI/APCI Dual 504(M+H) t
Example 5
-39_
S -N- 3- l- 2 2-Difluoro l—h drox -3 3 5 5-
tetrameth lo clohex lacet l rrolidin—Z- lisoxazol-S- lmeth lbenzenesulfonamide
(Compound 45]
The titled compound was obtained by repeating the procedure of Example 4—(3),
except that benzoyl chloride was ed by benzenesulfonyl chloride.
ESI/APCI Dual 540(M+H) t
Example 6
-l- 2- 5- Dimcth lamino meth 1 isoxazol l ' ' —2 2-difluoro-2—
l-h drox -3 3 5 S-tetrameth lc clohcx lethanone Com ound 46
The compound (160 mg) obtained in Example 3-(5) was ved in MeCN and
after adding a THF solution of dimethyllamine (2 M, 250 uL), the mixture was stirred at
room temperature for 3 hours. To the reaction mixture, AcOEt 3(50 ml) and a saturated
aqueous on ofNaC03 (50 ml) were added to separate the organic layer. The ing
organic layer was washed with brine (50 ml), dried (MgSO4), filtered and concentrated to
give a crude product, which was further purified by silica gel tography
(AcOEt/hexane) to give the titled compound (83 mg, colorless amorphous.)
ESI+ 428(M+H)
Example 7
S 1- C clohex lmeth l sulfon l rrolidin—2- 1 3 4-
dimethox henox meth lisoxazole Com ound 43
To a THF (10 mL) solution of the compound (913 mg) obtained in Example 1-(1), a
THF (5.0 mL) solution of Eth (555 uL) and cyclohexylmethanesulfonyl chloride (393 mg)
was added and the mixture was stirred at room temperature for 3.5 days. To the reaction
mixture, a saturated aqueous solution ofNH4C1 (50 mL) was added and the c layer
obtained by tion with AcOEt (50 mL X 2) was washed with brine (50 mL), dried
(MgSO4), filtered and trated to give a crude product, which was further purified by
neutral silica gel chromatography /hexane) and NH—form silica gel chromatography
(AcOEt/hexane) to give the titled compound (202 mg, ess amorphous.)
ESI/APCI Dual 465(M+H) +, 487(M+Na)+
Example 8
S -l- 2- 5- 3 4-Dimethox henox methil -1 3 4-oxadiazol l olidin-l
2 2-difluoro l-h drox -3 3 5 5-tetrameth lc clohex l ethanone Com ound 2
Example 8-(1)
S -t-But l2— 2- 2- 3 4-dimethox henox acet lh drazinecarbon l rrolidine-l-
carboxylate
To a solution of (S)-t-butyl 2-(hydrazinecarbonyl)pyrrolidine—l—carb0xylate (50.0 g)
and 2-(3,4-dimeth0xyphenoxy)acetic acid (47.8 g) in chloroform (1000 ml), HOBt (35.3 g)
and WSC hydrochloride (50.0 g) were added and the mixture was stirred at room temperature
for 4 hours. After distilling off the solvent under d pressure, water was added,
ed by extraction with ethyl acetate. The organic layer was washed successively with
saturated aqueous sodium bicarbonate and brine and dried over MgSO4 before it was filtered.
The solvent was distilled off under d pressure to give a crude form of the titled
compound (61.0 g).
1H NMR (200 MHz, CHLOROFORM-d) 5 ppm 8.79 (br. s., 1 H), 6.78 (d, J=8.79 Hz, 1 H),
6.58 (d, J=2.64 Hz, 1 H), 6.40 (dd, J=8.79, 3.08 Hz, 1 H), 4.57 (s, 2 H), 4.47 - 4.32 (m, 1 H),
3.87 (s, 3 H), 3.84 (s, 3 H), 3.52 - 3.32 (m, 2 H), 2.48 - 2.30 (m, 1 H), 2.03- 1.87 (m, 3 H),
1.54- 1.43 (m, 9 H)
Example 8-(2)
S -t-But 12- 5- 3 thox henox meth 1 —1 3 4-oxadiazol
carboxylate
>Us “to
To a toluene (700 ml) solution of the compound (61.0 g) obtained in Example 8-(1),
Burgess reagent (45.0 g) was added and the mixture was stirred at 120°C for 4 hours. After
adding water to the reaction mixture, the organic layer extracted with AcOEt was dried
(Na2S04), filtered and had the solvent distilled off under reduced pressure; the ing
residue was purified by silica gel chromatography (AcOEt) to give the titled compound
(42.0 g).
1H NMR (600 MHz, CHLOROFORM-d) 8 ppm 6.77 (d, J=8.71 Hz, 1 H), 6.62 - 6.57 (m,
l H), 6.51 (dd, J=8.94, 2.98 Hz, 1 H), 5.21 - 5.13 (m, 2 H), 5.07 - 5.01 (m, 1H), 3.85 (s,
3 H), 3.84 (s, 3 H), 3.66 - 3.38 (m, 2 H), 2.42 - 2.22 (m, 1 H), 2.20 - 2.06 (m, 2 H), 1.99 (m,
1 H), 1.26 — 1.49 (m, 9 H)
Example 8-(3)
To an AcOEt (200 ml) on of the compound (42.0 g) obtained in Example 8—(2),
4N HCl-AcOEt solution (200 ml) was added and the mixture was stirred at room
temperatuare for 4 hours. The solvent was distilled off under d pressure to give a
crude form of the titled compound (35.0 g).
1H NMR (200 MHZ, DMSO'd6) 8 ppm 6.88 (d, J=8.79 Hz, 1 H), 6.70 (d, J=3.08 Hz, 1 H),
6.64 - 6.55 (m, l H), 5.38 (s, 2 H), 5.13 - 5.00 (m, 1 H), 3.75 (s, 3 H), 3.70 (s, 3 H), 3.34 -
3.23 (m, 2 H), 2.44 - 1.90 (m, 4 H)
Example 8-(4)
S -1— 2- 5- 3 4-Dimethox henox meth l -1 3 4-oxadiazol l
difluorog 1 -hydroxy-3 ,3 ,5 ,5—tetramethylcyclohexyl )ethanone ( Compound 2 )
[01 5 1 ]
_43_
The procedure of Example 1—(2) was repeated, except that the compound obtained in
Example l-(l) was ed by the compound (35.0 g) obtained in Example 8—(3); the
resulting crude t was r purified by silica gel column chromatography
(AcOEt/hexane) and thereafter recrystallized with AcOEt-pentane to give the titled
compound (39.0 g) as a colorless solid.
1H NMR (600 MHz, CHLOROFORM-d) 6 ppm 6.80 — 6.77 (m, 1 H), 6.62 - 6.60 (m, 1 H),
6.50 (dd, J=8.71, 2.75 Hz, 1H), 5.50 — 5.46[5.71-5.67](m,1H), 5.21 — 5.15 (m, 2 H), 4.41 -
4.34 (In, 1 H), 3.97 (s, 1 H), 3.86 (s, 3 H), 3.84 (s, 3 H), 3.80 — 3.72 (m, 1 H), 2.37 - 0.79 (m,
22 H)
Example 9
S -2 2-Difluoro-2— l-h drox -3 3 5 5-tetrameth lc clohex l —1'- 2- 5-
henox meth 1-1 3 4-oxadiazol 1 rrolidin-l- lethanone Com ound 29
Example 9-(1)
>LLOoK,02
[S H-Butyl 2-[211te1‘t—
but ldi hen lsil 10x acet lh drazinecarbon 1 rrolidine-l-carbox late
_44_
A mixture of CHCl3 (100 mL) with (S)-t-butyl 2-(hydrazinecarbonyl)pyrrolidine
carboxylate (4.791 g), 2-((t-butyldiphenylsily1)oxy)acetic acid (6.28 g), WSC ' HCl (4.371 g)
and HOBt ' H20 (3.081 g) was stirred at room temperature for 15 hours. To the reaction
mixture, a saturated s solution ofNH4C1 (500 mL) was added, followed by extraction
with AcOEt (500 mL). The organic layer was washed successively with saturated aqueous
sodium bicarbonate (500 mL) and brine (500 mL), dried (MgSO4), filtered and concentrated
to give a crude product, which was further purified by silica gel chromatography
/hexane) to give the titled compound (6.42 g, colorless amorphous.)
ESI/APCI Dual 548(M+Na) +
Example 9-(2)
S -t-But 12- 5- tert-but ldi hen lsil lox meth 1-1 3 4—oxadiazol-2—
yl [pmolidinecarboxylate
To a toluene (112 mL) solution ofthe nd (5.87 g) obtained in Example 9-(1), '
Burgess reagent (5.322 g) was added and the mixtdure was heated under reflux for 2.5 hours.
The reaction mixture was trated to give a crude t, which was further purified by
silica gel chromatography (AcOEt/hexane) to give the titled compound (4.151 g, colorless
ous.)
ESI/APCI Dual 508(M+H) +, 530(M+Na) +
Example 9-(3)
[01 5 9]
rrolidin—2- l -1 3 4-oxadiazole
To a THF (3.8 mL) solution of the compound (3.832 g) ed in Example 9-(2),
H3PO4 (6.1 mL, 85% aqueous solution) was added and the mixtdre was stirred at room
temperature for an hour. To the reaction mixture, THF (50 mL) was added and the resulting
mixture was added to NaOH (150 mL, 1.0 N aqueous solution) and ice (50 g), followed by
tion with CHC13 (300 mL). The organic layer was dried (NaZSO4), filtered and
concentrated to give a crude product, which was further purified by NH-form silica gel
chromatography (MeOl-I/CHClg) to give the titled compound (1.261 g, colorless oil.)
ESI/APCI Dual 408(M+H) +
Example 9-(4)
text-But ldi hen lsil 1 ox meth 1—13 iazol-2— l
1— l -2 2-difluoro l-h drox -3 3 5 S-tetrameth 1c clohex l ethanone
The procedure of Example 1-(2) was repeated, except that the nd obtained in
Example l-(l) was replaced by the compound (1.186 g) obtained in Example 9-(3); this gave
the titled nd (1.287 g, colorless amorphous.)
ESI/APCI Dual 640(M+H) J“, 662(M+Na)
Example 9-(5)
[01 63]
-46—
F/Ko O’K/OH
S -2 oro l-h drox —3 3 5 5-tetrameth 1c clohex 1 —1- 2- 5-
h drox meth -1 3 4-oxadiazol 1 rrolidin-l- lethanone Com ound 22
The procedure of Example 3-(4) was repeated, except that the compound obtained in
Example 3-(3) was ed by the compound (1.378 g) obtained in Example 9-(4); this gave
the titled compound (750 mg, colorless solid.)
ESI/APCI Dual 402(M+H) t, 424(M+Na)+
Example 9-(6)
/ '\:N
, =O\ yo
:0/8\
S - 5— 1— 2 2—Difluoro l-h drox -3 3 5 5-
tetrameth 1c clohex l acet l olidin—2- 1-1 3 4-oxadiazol lmeth lmethanesulfonate
gCompound 23)
The procedure of Example 3—(5) was repeated, except that the compound obtained in
Example 3-(4) was replaced by the compound (340 mg) obtained in Example 9-(5); the
resulting crude product was recrystallized (AcOEt/hexane) to give the titled compound
(7349 mg, colorless .)
ESI/APCI Dual 480(M+H) t, Na)+
Example 9-(7)
[Ol 67]
S -2 2—Difluoro l-h drox -3 3 5 ameth 1c clohex l -l- 2- 5—
henox meth 1-1 3 4-oxadiazol l rrolidin—l- 1 ne Com ound 29
To a DMF(1.0 mL) solution of the compound (32.5 mg) obtained in Example 9-(6)
and phenol (13 mg), K2C03 (37 mg) was added and the mixtdure was stirred at 50°C for 3.5
hours. The reaction mixture was added to water (20 mL) and the organic layer extracted with
AcOEt (20 mL X 2) was dried (MgSO4), filtered and concentrated to give a crude product,
which was further purified by silica gel chromatography (AcOEt/hexane) to give the titled
compound (31.6 mg, colorless amorphous.)
ESI/APCI Dual 478(M+H) +, 500(M+Na) +
Example 10
S -N- 5— 1- 2 2—Difluor0—2— l—h drox -3 3 5 5-
tetrameth lc clohex lacet l rrolidin—Z— 1-1 3 iazol—2- lmeth lbenzamide
(Compound 3 8)
The procedure of Example 4 was repeated, except that the compound obtained in
e 3-(4) was replaced by the compound obtained in Example 9—(6); this gave the titled
ESI/APCI Dual 505(M+H) +, 527(M+Na)+
Example 11
difluoro-Z- 1-h drox -3 3 5 S-tetrameth lc clohex lethanone Com ound 39
The procedure of Example 6 was repeated, except that the compound obtained in
e 3-(5) was replaced by the compound obtained in e 9-(6); this gave the titled
compound.
ESI/APCI Dual H) t, 451(M+Na)+
Example 12
S -1— 2— 3- 3 4-Dimethox henox meth 1 -1 2 4-oxadiazol l
2 2-difluoro 1-h drox —3 3 5 5-tetrameth 1c clohex 1 ne Com ound 3
Example 12-(1)
L”N_
2- 3 4-Dimethox henox -N'—h drox acetoimidamide
To a solution of 2-(3,4-dimethoxyphenoxy)acetonitrile (3.8 g) in MeOH—H20 (1:1),
hydroxyamine hydrochloride was added and the mixture was stirred at 100°C for 3 hours.
After distilling off the solvent under reduced pressure, the residue was recovered by filtration
and washed with water and hexane to give a crude form of the titled compound (4.9 g).
ESI/APCI Dual H) +, 249(M+Na) +
Example 12-(2)
-t-But 12- 3- 3 4—dimethox henox meth 1-1 2 4—oxadiazol l
oxylate
To a CHC13 (20ml) solution of the compound (1.0 g) ed in Example 12-(1)
and (S)(tert—butoxycarbonyl)pyrrolidine—2-carboxylic acid (1.0 g), WSC ' HCl ( 1.0 g) was
added and the e was stirred at room temperature for 4 hours. Water was added,
followed by extraction with CHCl3. After distilling off the solvent under reduced pressure,
the residue was dissolved in toluene (20 ml), followed by refluxing for 2 hours. The solvent
was distilled off under reduced pressure and the residue was purified by silica gel
chromatography (AcOEt/hexane) to give the titled compound (190 mg).
ESI/APCI Dual 424(M+H) +, 446(M+Na) +
Example 12-(3)
S 2— 3- 3 4—Dimethox henox meth l -1 2 iazol l
2 2-difluoro 1—h drox —3 3 5 5-tetrameth 1c clohex l ethanone Com ound 3
The procedures of Example 2-(3) and Example 2-(4) were repeated, except that the
compound obtained in Example 2-(2) was replaced by the compound obtained in Example
; this gave the titled compound.
ESI/APCI Dual 53 8(M+H) t, 560(M+Na) +
Example 13
1- l -2 2-difluoro—2- l-h drox -3 3 5 ameth 1c clohex l ne Com ound 9
Example 13-(1)
S -t-But 1 2- 4— 3 4-dimethox henox but no 1 rrolidine-l—carbox late
To a THF (50 mL) solution of 1,2-dimethoxy-4—(propyn—yloxy)benzene
(2.118 g), n-BuLi (4.0 mL, 2.64 N hexane solution) was added dropwise at -78°C and the
resulting mixture was stirred at the same temperature for 30 minutes; the reaction mixture
was then added dropwise to a solution of (S)—t-buty1 2-
(methoxy(methyl)carbamoyl)pyrrolidine—1—carboxy1ate (2.578 g) in THF (100 mL) at -78°C
and, after stirring at the same temperature for an hour, temperature was raised to room
temperature over an hour. The reaction mixture was added to a saturated aqueous solution of
NH4C1 (300 mL) to separate the organic layer, which was washed with a saturated aqueous
solution ofNH4C1 (100 mL), dried (Na2SO4), filtered and trated to give a crude
product, which was further purified by neutral silica gell tography (AcOEt/hexane) to
give the titled compound (2.479 g, pale brown oil.)
ESI/APCI Dual 412(M+Na) +
Example 13-(2)
[01 85]
7101.
S -t—But 12- 5- 3 4-dimethox henox meth l-l-meth l-lH- azol
1 rrolidine-l-carbox late
To an EtOH (5.0 mL) solution of the compound (390 mg) obtained in Example 13-
(1), methylhydrazine (106 uL) and sodium acetate (246 mg) were added and the mixture was
heated under reflux for 20 hours. The on mixture was concentrated and a saturated
aqueous solution ofNH4C1 (50 mL) was added to separate the organic layer, which was dried
(MgSO4), filtered and concentrated to give a crude product, which was further purified by
neutral silica gel chromatography (AcOEt/hexane) to give the titled nd (378 mg, pale
brown oil.)
ESI/APCI Dual 418(M+H)+
Example 13-(3)
To a CHC13 (1.0 mL) solution of the compound (365 mg) obtained in Example 13-
(2), TFA (5.0 mL) was added at 0°C and the e was stirred at room temperature for 2
hours. After concentrating the reaction mixture, saturated s sodium bicarbonate
(50 mL) was added and the organic layer extracted with CHC13 (50 mL X 2) was dried
(Na2804), filtered and concentrated to give the titled compound (283 mg, pale brown oil.)
ESI/APCI Dual 318(M+H)+
Example 13-(4)
l— l -2 2-difluoro l—h drox -3 3 5 5-tetrameth 1c clohex l ethanone Com ound 9
The procedure of Example 1-(2) was repeated, except that the compound obtained in
Example l-(l) was replaced by the compound (274 mg) obtained in Example ; the
resulting crude product was further purified by silica gel chromatography (AcOEt/hexane) to
give the titled d (129 mg, ess amorphous.)
ESI/APCI Dual 550(M+H) +, 572(M+Na) t
e 14
_, O
difluoro l-h drox -3 3 5 S-tetrameth 1c clohex lethanone Com ound 10
Example 14-(1)
_53_
2- 3 4-Dimethox henox hox -N-meth lacetamide
To a mixture of CHC13 (100 mL) with 2-(3,4-dimethoxyphenoxy)acetic acid
(4.244 g), N,O-dimethylhydroxyamine hydrochloride (2.341 g), WSC ' HCl (4.984 g) and
HOBt ' H20 (3.513 g), Et3N (3.62 mL) was added and the mixture was stirred at room
temperature for 20 hours. The reaction mixture was concentrated, H20 (400 mL) was added,
and the organic layer extracted with AcOEt (500 mL) was washed successively with
saturated aqueous sodium dicarbonate (400 mL), water (400 mL) and brine (400 mL), dried
(MgSO4), filtered and concentrated to give a crude product, which was furher d by
silica gel chromatography (AcOEt) to give the titled compound (4.01 g, pale brown oil.)
ESI/APCI Dual 256(M+H) +
Example 14-(2)
[01 95].
-3 -oxobut— 1 - n-l - 1
carboxylate
To a THF (120 mL) solution of (S)-t-butyl 2-(2,2-dibromovinyl)pyrrolidine
carboxylate (5.326 g), n—BuLi (11.6 mL, 2.64 N hexane solution) was added dropwise
at —78°C and the e was stirred at the same temperature for an hour; thereafter, a THF
(50 mL) solution of the compound (4.00 g) obtained in Example 14-(1) was added dropwise
and temperature was raised to room temperature over an hour. The reaction mixture was
added to a saturated aqueous on ofNH4C1 (400 mL) and the organic layer extracted
with AcOEt (400 mL X 2) was dried (MgSO4), filtered and concentrated to give a crude
product, which was further purified by neutral silica gel chromatography (AcOEt/hexane) to
give the titled compound (2.934 g, pale yellow oil.)
ESI/APCI Dual 3 )'
e 14-(3)
[01 97]
S -3— 3 4-Dimethox henox meth 1 rrolidin l isoxazole
To an EtOH (10 mL) solution ofthe compound (390 mg) obtained in Example 14-
(2), hydroxylamine hydrochloride (139 mg) was added and the mixture was heated under
reflux for 20 hours. The on mixture was concentrated to give a brown oil, to which
CHC13 (1.0 mL) and TFA (5.0 mL) were added, followed by stirring at room temperature for
21 hours. After concentrating the reaction mixture, saturated aqueous sodium bicarbonate
(50 mL) was added and the organic layer extracted with CHCl3 (5OmL X 2) was dried
(Na2S04), filtered and trated to give the titled compound (326 mg, brown oil) as a
mixture with impurities.
ESI/APCI Dual 305(M+H) +
Example 14-(4)
difluoro-Z-g 1—hydroxy-3,3 ,5fi-tetramethylcyclohexyl )ethanone 1 Compound 1 0 1
The procedure of Example l-(2) was ed, except that the compound obtained in
Example 1-(1) was replaced by the compound (321 mg) obtained in Example 14-(3); the
resulting crude product was further d by neutral silica gel chromatography
/hexane) and NH-form silia gel chromatography (AcOEt/hexane) to give the titled
compound (142 mg, yellow amorphous.)
CI Dual 537(M+H) t, 559(M+Na)+
Example 15
difluoro l-h drox -3 3 5 5-tetrameth lc clohex 1 ethanone Com ound 11
Example 15—(1)
carboxylate
To an EtOH (lOmL) solution ofthe compound (395 mg) obtained in Example 14-
(2), hydrazine hydrate (63 uL) was added and the mixture was stirred at room temperature for
minutes. The on mixture was concentrated, water (50 mL) was added, and the
organic layer extracted with AcOEt (50 mL) was dried (MgSO4), filtered and concentrated to
give the titled compound (466 mg, pale brown amorphous.)
ESI/APCI Dual 404(M+H) +, 426(M+Na) +
Example 15-(2)
S 3 4-Dimethox henox meth 1 rrolidin 1 -1H- azole
The procedure of Example 13-(3) was repeated, except that the compound obtained
in Example 13-(2) was replaced by the compound (460 mg) obtained in Example 15—(1); this
gave the titled compound (339 mg, pale brown oil.)
ESI+ 304(M+H)
Example 15—(3)
difluoro-Z- l-h drox —3 3 5 ameth lc clohex l ne Com ound ll
The procedure of Example 1-(2) was repeated, except that the compound obtained in
Example l-(l) was ed by the compound (332 mg) obtained in Example 15—(2); the
resulting crude product was filrther d by silica gel chromatography (AcOEt/hexane) to
give the titled compound (463 mg, pale pink amorphous.)
ESI/APCI Dual 536(M+H) i 558(M+Na) +
Example 16
S -l— 2- 5- 3 4—Dimethox henox meth l —1 3 4-thiadiazol l
2 2-difluoro l-h drox -3 3 5 5-tetrameth lc clohex l ethanone Com ound 4
Example 16-(1)
.‘N'\ .
[02 12]
l -carboxylate
To a toluene (30 ml) solution of the compound (540 mg) obtained in Example 8-(1),
Lawesson’s reagent (750 mg) was added and the e was stirred at 90°C for 6 hours.
After adding water, extraction was conducted with AcOEt. The solvent was distilled off
under reduced pressure and the e was purified by silica gel chromatography
(AcOEt/hexane) to give the titled nd (291 mg).
ESI/APCI Dual 422(M+H) +, 444(M+Na)
Example 16-(2)
[02 l 3]
—58—
S —1- 2- 5— 3 4-Dimethox henox meth l -1 3 4-thiadiazol l
2,2-difluoro-2—g l -hydroxy-3 ,3,5,5-tetramethylcyclohexyl )ethanone 1 nd 4 )
The procedures of e 2-(3) and Example 2-(4) were repeated, except that the
compound obtained in Example 2-(2) was replaced by the compound obtained in Example
16-(1); this gave the titled compound.
ESI/APCI Dual 554(M+H) +, 576(M+Na) +
Example 17
S 2— 5- 3 4—Dimethox henox meth 1 -4H-1 2 4-triazol l in—ll
-2 2-diflu0ro—2— l-h drox -3 3 5 5-tetrameth lc clohex 1 ethanone Com ound 5
Example 17-(1)
-t—But l 2- 5- 3 4-dimethox henox meth l —4H—1 2 zol l
1 -carboxy1ate
To a n—butanol (10 ml) solution of 2-(3,4—dimethoxyphenoxy)acetonitrile (1.26 g)
and (S)-t-butyl 2-(hydrazinecarbonyl)pyrrolidinecarboxylate (500 mg), K2CO3 (150 mg)
was added. The resulting mixture was stirred at 160°C for an hour under microwave
irradiation. After distilling off the solvent under reduced pressure, water was added,
followed by extraction with ethyl acetate. After distilling off the solvent under d
pressure, the residue was purified by silica gel chromatography and NH-form silica gel
tography to give the titled compound (281 mg).
ESI/APCI Dual 405(M+H) Jr, 427(M+Na) + ’
Example 17-(2)
S 2- 5- 3 4-Dimethox henox meth l -4H—1 2 4-triazol l rrolidin—l-
l -2 2-difluoro 1-h drox -3 3 5 5-tetrameth lc clohex l ethanone Com ound 5
The procedures of Example 2-(3) and Example 2-(4) were ed, except that the
compound obtained in Example 2-(2) was replaced by the compound obtained in e
17—(1); this gave the titled compound.
ESI/APCI Dual 537(M+H) +, 559(M+Na) +
. Example 18‘
ii N
= I.
S 2- 5- 3 4-Dimeth0x henox meth l meth l-lH—l 2 4-triazol
l rrolidin-l- l —2 2-difluoro—2- l-h drox —3 3 5 5-tetrameth lc clohex l ethanone
gCompound 8)
-60—
Example 18-(1)
S -t-But l2— 5- 3 4-dimethox henox meth l -l—meth l-lH—l 2 4-triazol
1 rrolidine-l-carbox late
Using (S)-t-butyl 2-(2-methylhydrazinecarbonyl)pyrrolidine-l-carboxy1ate in place
of (S)—2-(hydrazinecarbonyl)pyrrolidine—1-carboxylate, the procedure of Example 17-(1) was
repeated to give the titled compound.
ESI/APCI Dual 419(M+H) +, 441(M+Na) +
Example 18-(2)
1Compound 8)
The procedures of Example 2—(3) and Example 2-(4) were repeated, except that the
compound ed in e 2-(2) was replaced by the compound obtained in Example
; this gave the titled compound.
ESI/APCI Dual 551(M+H) +, 573(M+Na)
Example 19
difluoro-2— l-h drox -3 3 5 5-tetrameth lc clohex l ethanone Com ound 6
N»; -.
N/ N
Example 19-(1)
1- 1H-Benzo d l 2 3 l-l- l 3 4—dimethox henox ethanone
To a solution of 1H-benzo[d][l ,2,3]triazole (11.2 g) in CHC13 (120 m1), thionyl
chloride (1.7 ml) was added and after stirring at room temperature for 30 minutes, 2-(3,4-
oxyphenoxy)acetic acid (5.00 g) was added and the mixture was stirred at room
ature for 1.5 hours. The precipitate was filtered off and the filtrate was washed with
an aqueous solution of 2 N NaOH; thereafter, the organic layer was dried (MgSO4), d
and concentrated to give the titled compound (8.06 g, colorless solid.)
Example 19-(2)
ch.\/,fl\\,,ov.c - ‘O/. o\\
1- 3 4-Dimethox henox ro ro anone
To a suspension of potassium tert-butoxide (3.38 g) in DMSO (60 ml), a solution of
nitromethane (0.836 g) in DMSO (5 ml) was added at 10°C and the mixture was stirred at the
same temperature for 30 minutes. A DMSO (65 ml) suspension of the compound (4.30 g)
-62—
obtained in e 19-(1) was added dropwise at 10°C and the mixture was stirred at the
same temperature for an hour, then at room temperature for 3 hours. The reaction e
was poured into water (250 m1), rendered acidic with 10% aqueous acetic acid, and subjected
to extraction with AcOEt. The organic layer was washed with water, dried (MgSO4), d
and concentrated to give a crude product, which was further purified by silica gel
chromatography (AcOEt/hexane) and then recrystallized /hexane) to give the titled
compound (0.808 g, pale yellow solid.)
ESI/APCI Dual 254(M-H)'
Example 19-(3)
H22Nv.-\/U=\/OI
l-Amino-3— 3 4-dimethox henox r0 anoneh drochloride
To a MeOH (7 ml) solution of the compound (0.660 g) obtained in Example 19-(2),
% Pd-C (0.330 g) and an aqueous solution of 1N HCl (14 ml) were added and the mixture
was stirred at room temperature for 5 hours in a hydrogen gas atmosphere. The insoluble
matter was filtered off and the filtrate was concentrated to give the titled compound (0.715 g,
brown amorphous.)
ESI/APCI Dual 226(M+H) +
Example 19-(4)
V. Ni
>§oOoj\/O\.:o\o./
S -tert-But 12- 3- 3 thox henox oxo ro mo l rrolidine-l
carboxylate
To a THF (14 ml) solution of (S)(tert—butoxycarbonyl)pyrrolidine—Z-carboxylic
acid (0.557 g) and Et3N (0.790 ml), ethyl chloroformate (0.295 g) was added over an ice
bath, followed by stirring at the same temperature for 30 minutes. The reaction mixture was
added at 0°C to a THF (7 ml) solution of the compound (0.701 g) obtained in Example 19-(3)
and the mixture was stirred at room temperature for 17 hours. After adding water and
performing extraction with AcOEt, the c layer was washed with saturated aqueous
sodium chloride, dried (MgSO4), filtered and concentrated to give a crude product, which
was r purified by silica gel chromatography (AcOEt/hexane) to give the titled
compound (0.540 g, brown amorphous.)
ESI/APCI Dual 445(M+Na) +
Example 19-(5)
S -t-But l2— 5— 3 4-dimethox henox meth loxazol l rrolidine—l-
carboxylate
To a toluene (10 ml) ofthe compound (0.250 g) obtained in Example 19-(4),
Burgess reagent (0.281 g) was added and the e was stirred at 50°C for 1.5 hours. After
reversion to room temperature, the reaction mixture was concentrated to give a crude
product, which was further purified by silica gel chromatography (AcOEt/hexane) to give the
titled compound (0.156 g, colorless oil.)
CI Dual 405(M+H) +
Example 19-(6)
S 3 4-Dimethox henox meth 1 rrolidin loxazole
To an AcOEt (1 ml) solution of the compound (0.146 g) ed in Example 19-(5),
4N HCl-AcOEt (0.5 ml) was added and the mixture was stirred at room temperature for 12
hours. After adding 4N HCl-AcOEt (0.5 ml) and stirring for 3 hours, 4N HCl-AcOEt
(0.5 ml) was further added and stirring was continued for an hour. After adding an aqueous
solution of 2N NaOH and performing extraction with AcOEt, the organic layer was washed
with brine, dried (MgSO4), filtered and trated to give the titled compound (0.078 g,
pale yellow solid.)
. ESI/APCI Dual 305(M+H) +
Example 19-(7)
difluoro l-h drox -3 3 5 5-tetrameth 1c clohex lethanone Com ound 6
To a solution of 2,2—difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)acetic
acid (0.075 g) and Et3N (0.038 ml) in THF (1 ml), ethyl chloroformate (0.028 g) was added
over an ice bath, followed by stirring at the same temperature for an hour. To the reaction
e, a on of (S)((3,4-dimethoxyphenoxy)methyl)(pyrrolidinyl)oxazo1e
(0.075 g) in THF (1 ml) was added over an ice bath, followed by ng at room temperature
for 15 hours. After adding water and performing extraction with AcOEt, the organic layer
was washed with ted aqueous sodium chloride, dried (MgSO4), filtered and
concentrated to give a crude product, which was further purified by silica gel
chromatography (AcOEt/hexane) to give the titled compound g, colorless amorphous. )
ESI/APCI Dual 537(M+H)
Example 20
_65_
S -l- 2- 5- 3 thox henox meth lthiazol l rrolidin-l- l
difluoro-2— l-h drox -3 3 5 5-tetrameth lc clohex lethanone Com ound 7
Example 20-(1)
carboxylate
To a e (5 ml) solution of the compound (0.287 g) obtained in e 19-(4),
Lawesson’s reagent (0.275 g) was added and the mixture was stirred at 110°C for an hour.
After reversion to room temperature, the reaction mixture was concentrated to give a crude
product, which was further purified by silica gel chromatography (AcOEt/hexane) to give the
titled compound (0.100 g, colorless amorphous.)
ESI/APCI Dual 421 (M+H) +
Example 20-(2)
‘ \
'ENH
S 3 4-Dimethox henox meth 1 olidin lthiazole
The procedure of Example 19-(6) was repeated, except that the compound obtained
in Example 19-(5) was replaced by the compound obtained in Example 20-(2); this gave the
titled compound (0.063 g, colorless solid.)
ESI/APCI Dual 321(M+H) +
Example 20-(3)
o-Z- l-h drox -3 3 5 5-tetrameth 1c clohex lethanone Com ound 7
The procedure of Example 19-(7) was repeated, except that the compound obtained
in Example 19-(6) was replaced by the compound obtained in Example 20-(2); this gave the
titled compound (0.077 g, colorless amorphous.)
ESI/APCI Dual 575(M+Na) +
e 21
NXW.
V .0
» /_.
lox meth l isoxazol l rrolidin—l— 1 ethanone Com ound 53
A sealed tube was charged with a mixture prepared by adding e (2 ml) to
nd 18 (30 mg), 4-bromopyridazine hydrobromide (22 mg), Pd(OAc)2 (2 mg),
C32C03 (37 mg), and [l,l'—binaphthalen]yldi-tert-butylphosphine (3 mg) and the mixture
was stirred at 100°C for 4 hours. After cooling the reaction mixture to room temperature, NH
silica gel was added, followed by stirring for a while. After separating the silica gel by
—67—
filtration, the silica gel was washed with chloroform and the solvent was distilled off; the
resulting residue was purified by reverse-phase preparativelHPLC to give the titled
compound (6.0 mg, colorless oil.)
1H NMR (600MHz, CHLOROFORM-d) 8: 9.08 - 8.98 (m, 2 H), 7.02 - 6.96 (m, l H), 6.35
[6.26] (s, 1 H), 5.62 - 5.37 (m, l H), 5.22[5.24] (s, 2 H), 4.21 - 3.71 (m, 2 H), 2.38 - 0.82 (m,
22 H)
Example 22
S -2 2-Diflu0ro-2— l-h drox —3 3 5 5-tetrameth lc clohex l 2— 5-
yloxy [methyl [isoxazol-3 -yl [pvrrolidin- 1 —yl [ethanone 5 Compound 55 1
To a on of Compound 18 (40 mg) in DMF (10 ml), NaH (5.2 mg, >55% in
minerai oil) was added and after stirring for 30 s, 2-bromopyrazine (23.8 mg) was
added and the mixture was stirred at room temperature for 0.5 hour.
To the reaction mixture, DMSO (1.0 ml) was added and after filtering off the
ble matter, the filtrate was purified by reverse-phase preparative HPLC to give the
titled compound (6.7 mg, colorless oil.)
1H NMR z, CHLOROFORM-d) 5 8.34 — 8.29 (m, 1 H), 8.24 — 8.18 (m, 1 H), 8.13 -
8.08 (m, 1 H), 6.28 [6.19] (s, 1 H), 5.60 - 5.36 (m, 3 H), 4.24 - 4.13 (m, 1 H), 3.95 - 3.87 (m,
1 H), 3.82 - 3.69 (m, 1 H), 2.35 — 0.76 (m, 22 H)
Example 23
(S)-2,2-Diflu0ro(1—hydroxy—3 ,3 ,5,5-tetramethylcyclohexyl)(2-(5 -((pyridin
yloxy)methyl)isoxazolyl)pyrrolidin—1—yl)ethanone (Compound 54); and
(S)-1—((3 -(1-(2,2-Difluoro-2—(1—hydroxy-3,3,5,5-tetramethylcyclohexyl)acety1)pyrrolidin
yl)isoxazol-5—yl)methyl)pyridin—2(lH)-one (Compound 60)
To a DMF (1.0 mL) solution of the compound (30 mg) ed in Example 3-(5)
and n-Z-ol (12 mg), K2CO3 (35 mg) was added and the mixture was stirred at 50°C for
an hour. To the reaction mixture, DMSO (1.0 ml) was added and after filtering offthe
insoluble matter, the filtrate was purified by reverse-phase preparative HPLC to give
Compound 54 (2.0 mg, colorless oil) and Compound 60 (16.0 mg, colorless oil.)
S -2 oro 1-h drox
yloxy )methyl )isoxazol-B -yl )pyrrolidinyl )ethanone 1 Compound 54 )
1H NMR (600MHz, CHLOROFORM—d) 8 8.20 - 8.12 (In, 1 H), 7.66 - 7.57 (m, l H), 6.97 -
6.90 (m, 1 H), 6.85 — 6.78 (m, 1 H), 6.24 [6.15] (s, 1 H), 5.59 - 5.30 (m, 3 H), 4.25 - 4.14 (m,
1 H), 4.05 - 3.92 (m, 1 H), 3.81 — 3.69 (m, 1 H), 2.33 — 0.77 (m, 22 H)
yl )isoxazol-S-yl )methyl n-Zg 1H )-one (Compound 60)
1H NMR (600MHz, CHLOROFORM-d) 8 7.42 = 9.1 Hz,
- 7.31 (m, 2 H), 6.59 (d, J 1 H),
6.28 — 6.11 (m, 2 H), 5.56 — 5.07 (m, 3 H), 4.23 — 4.09 (m, 1 H), 3.98 - 3.83 (m, 1 H), 3.80 —
3.67 (m, 1 H), 2.35 — 0.72 (m, 22 H)
Example 24'
-2 oro l-h drox -3 3 5 5-tetrameth lc clohex 1 -l- 2- 5- ridin
lox meth lisoxazol l rrolidin-l— lethanone h oride monoh drate
1Compound 67]
To an AcOEt (50 ml) solution of Compound 40 (2.24g) obtained in Example 2, HCl
(50ml, 4.0 N in AcOEt) was added and the mixture was stirred at room temperature for 15
hours, and aftrer adding pentane (140 ml), the e was stirred for 8 days. The residue
obtained by concentrating the reaction mixture was tallized (MeOH/EtZO) to give the
titled compound (2.23 g, colorless powder.)
1H NMR (600MHz, DMSO-ds) 8 = 8.65 - 8.52 (m, l H), 8.46 - 8.36 (m, l H), 7.97 - 7.84 (m,
1 H), 7.75 - 7.65 (In, 1 H), 6.61 [6.63] (s, 1 H), 5.79 - 3.01 (m, 7 H), 5.42 [5.44] (s, 2 H), 2.31
— 0.66 (m, 2.2 H)
Anal. calcd for C25H33F2N304 ' HCl ' H20: C, 56.44; H, 6.82; N, 7.90; found C, 56.20; H,
6.66; N, 7.76.
The procedure of Example 3 was repeated to give the following compounds.
S -2 2-Difluoro 1-h drox —3 3 5 5-tetrameth lc clohex l 2— 5- 6-
methoxypflidinyl [oxy [methyl [isoxazolyl [pyrrolidinyl [ethanone 1 Compound 41 )
1H NMR (600MHz, CHLOROFORM-d) 8 7.91 - 7.82 (m, 1 H), 7.30 9 7.21 (In, 1 H), 6.74 -
6.66 (m, 1 H), 6.39 - 6.151(m, 1H), 5.60 - 5.33 (m, 1 H), 5.12 — 5.02 (m, 2 H), 3.89 (s, 3 H),
4.24 - 3.64 (m, 3 H), 2.35 - 0.84 (m, 22 H)
g S [—2,2-Difluoro] oxy_-3,3,5,5-tetramethylcyclohexyl [] 2-] 5-
(phenoxymethyl [isoxazolyl [pyrrolidin—l -yl [ethanone (Compound 52 )
_7()_
1H NMR (600MHz, CHLOROFORM—d) 5 7.37 — 7.28 (m, 2 H), 7.05 - 6.92 (m, 3 H), 6.26
[6.18] (s, 1 H), 5.44 - 5.37 [5.60 - 5.54] (m, 1 H), 5.17 — 5.05 (m, 2 H), 4.41 — 3.54 (m, 3 H),
2.39 4 0.68 (m, 22 H)
S -2 oro-2— 1-h drox -3 3 5 5-tetrameth lc clohex l —1- 2- 5— ‘rimidin-S-
yloxy l )isoxazol-3 —yl )pflrolidinyl )ethanone 1 Compound 59 ]
1H NMR z, CHLOROFORM-d) 8 8.93 (s, 1 H), 8.49 (s, 2 H), 6.34 [6.25] (s, 1 H),
.44 - 5.36[5.61- 5.56] (m, 1 H), 5.26 — 5.17 (m, 2 H), 4.21 — 4.11 (m, 1 H), 3.89 — 3.70 (m,
2 H), 2.38 - 0.77 (m, 22 H)
S -2 2—Difluoro-l- 2- 5- 3-flu0ro henox ‘meth l isoxazol-3— l
hydroxy—3 ,3 ,5,5-tetramethylcyclohexyl )ethanone 1 Compound 64 1
1H NMR (600MHz, CHLOROFORM-d) 5 7.30 — 7.21 (m, 1 H), 6.77 — 6.65 (m, 3 H), 6.27
[6.18] (s, 1 H), 5.44 — 5.38 [5.59 - 5.55] (m, 1 H), 5.15 — 5.05 (m, 2 H), 4.23 - 4.14 (m, 1 H),
3.93 - 3.87 (m, 1 H), 3.84 - 3.70 (m, 1 H), 2.35 - 0.78 (m, 22 H)
S -2 2-Diflu0ro l-h drox -3 3 5 5-tetrameth lc clohex l 2- 5-
toluyloxy )methyl )isoxazol-3 -yl )pyrrolidin-l -yl )ethanone ] Compound 65 )
1H NMR (600MHz, CHLOROFORM-d) 6 7.13 — 7.08 (m, 2 H), 6.87 — 6.82 (m, 2 H), 6.25
[6.17] (s, 1 H), 5.44 — 5.37 [5.58 — 5.55] (m, 1 H), 5.13 — 5.04 (m, 2 H), 4.24 — 4.15 (m, 1 H),
3.98 - 3.91 (m, 1 H), 3.82 - 3.69 (m, 1 H), 2.30 (s, 3 H), 2.25 — 0.86 (m, 22 H)
The procedure of Example 21 was repeated to give the following compound.
S -2 2-Difluor0 l-h drox -3 3 5 5-tetrameth 1c clohex l —1- 2- 5- ridin—4-
yloxy l )isoxazol-3 -yl )py_rrolidinyl )ethanone [ Compound 57 )
1H NMR (600MHz, CHLOROFORM-d) 6 8.49 (br. s., 2 H), 6.93 — 6.82 (m, 2 H), 6.30 [6.21]
(s, 1 H), 5.46 — 5.35 [5.61— 5.55] (m, 1 H), 5.21 - 5.10 (m, 2 H), 4.24 - 4.08 (m, 1 H), 3.92 -
3.69 (m, 2 H), 2.40 - 0.75 (m, 22 H)
The procedure of Example 22 was repeated to give the following compounds.
S —2 2-Difluoro l-h drox -3 3 5 ameth lc clohex l 2— 5-
3— 10X meth lisoxazol l rrolidin—l- lethanone Com ound 56
1H NMR (600MHz, CHLOROFORM-d) 8 8.93 — 8.86 (m, 1 H), 7.47 - 7.40 (m, 1 H), 7.10 —
7.02 (m, 1 H), 6.35 [6.25](s, 1 H), 5.70 — 5.60 (m, 2 H), 5.44 - 5.37 [5.60 — 5.56] (m, 1 H),
4.25 — 4.13 (m, 1 H), 3.99 — 3.87 (m, 1 H), 3.82 — 3.69 (m, 1 H), 2.35 — 0.77 (m, 22 H)
S -2 oro 1-h drox -3 3 5 5-tetrameth lc clohex l 2- 5-
yloxy [methyl )isoxazol-3 —yl )pyrrolidin— 1 -yl [ethanone ( Compound 5 8 2
1H NMR (600MHz, FORM-d) 6 8.59 - 8.52 (m, 2 H), 7.06 - 6.99 (m, l H), 6.30
[6.23] (s, l H), 5.63 - 5.35 (m, 3 H), 4.26 - 4.14 (m, 1 H), 4.02 - 3.91 (m, 1 H), 3.82 - 3.68
(m, l H), 2.38 — 0.75 (m, 22 H)
The procedure of e 23 was repeated to give the following compounds.
g S [-l-[ g 3-1 1—[2,2-Difluoro—2-] 1-hydroxy-3,3,5,5-
tetramethylcyclohexyl [acetjgl [pyrrolidin-Z-yl [isoxazol-S-yl [methyl [pyrimidin-4] lH )-one
[Compound 61)
1H NMR (600MHz, CHLOROFORM-d) 8 8.22 - 8.10 (m, 1 H), 7.36 - 7.30 (m, l H), 6.33 -
6.15 (m, 2H), 5.40 — 5.30 [5.60 — 5.54] (m, 1 H), 5.02 — 4.96 (m, 2 H), 4.17 — 4.06 (m, 1 H),
3.86 — 3.60 (m, 2 H), 2.36 — 0.77 (m, 22 H)
S -3— 3— 1- 2 2-Difluoro 1—h drox —3 3 5 5-tetrameth lc clohex l acet l
511 [isoxazol-S—yl [methyl [pyrimidin—4] 3H )-one 1 Compound 62 1
1H NMR (600MHz, CHLOROFORM-d) 8 8.26 - 8.21 (m, l H), 7.95 - 7.87 (m, 1 H), 6.50 -
6.46 (m, 1H), 6.28 [6.21] (s, l H), 5.40 - 5.31 [5.57 - 5.50] (m, 1H), 5.21 - 5.11 (m, 2 H),
4.21 - 4.08 (In, 1 H), 3.91 - 3.68 (m, 2 H), 2.31 - 0.83 (m, 22 H)
-2 oro l-h drox -3 3 5 5-tetrameth lc clohex l -l- 2—5- rimidin
yloxy [methyl )isoxazolyl [pyrrolidin— l -yl )ethanone (Compound 63 [
1H NMR z, CHLOROFORM-d) 6 8.81 (s, 1 H), 8.53 — 8.46 (m, 1 H), 6.85 — 6.79 (m,
1 H), 6.29 [6.20] (s, 1 H), 5.63 — 5.34 (m, 3 H), 4.24 — 4.13 (m, 1 H), 3.97 — 3.68 (m, 2 H),
2.38 — 0.77 (m, 22 H)
3- 1- 2 2-Difluoro 1-h drox -3 3 5 5-tetrameth 1c clohex 1 acet l rrolidin
yl )isoxazol-S-yl [methy11pyridin—4] 1H [-one (Compound 66)
1H NMR (600MHz, CHLOROFORM—d) 6 7.36 - 7.30 (m, 2 H), 6.44 - 6.38 (m, 2 H), 6.16
[6.08] (s, 1 H), 5.61 — 5.31 (m, 1 H), 5.06 — 4.91 (m, 2 H), 4.22 — 4.07 (m, 1 H), 3.92 — 3.62
(m, 2 H), 2.38 — 0.77 (m, 22 H)
Reference Example
In e 2-(2), the following intermediate as generated in situ was used to
perform cyclization; if desired, this intermediate may be isolated before the cyclization.
WN(“OHN
>L,* Cl o
S But 12- chloro h drox imino meth l rrolidine—l-carbox late
To an AcOEt (270 ml) solution of the (S)—t-butyl 2-
oxyimino)methyl)pyrrolidine-l-carboxylate (32.0 g) obtained in Example 2-(1), NMP
(43 .1 ml) was added and after adding NCS (21.94 g) in three divided portions at 20- to 30-
min intervals at 30 to 40°C, the resulting mixture was stirred at room temperature for 0.5
hour. The same reaction was carried out in a total of four runs using the same quantities. To
the reaction mixture, water (400 ml) was added and the organic layer was separated. The
separated organic layers were combined, washed with water (1.2 L X 2), dried (MgSO4),
d and concentrated to give a crude product (pale yellow solid, 174 g), which was
washed with AcOEt/hexane (AcOEt/hexane = 140 ml/840 ml) and dried to give the titled
compound (109.3 g, colorless solid.)
1H NMR (600MHz, DMSO-d6) 8 11.77 - 11.62 (m, 1 H), 4.55 - 4.41 (m, 1 H), 3.58 - 3.20
(m, 2 H), 2.25 - 1.71 (m, 4 H), 1.39 [1.33] ( s., 9 H)
ESI/APCI Dual 237(M+Na) +
Using methods either the same as or similar to those described in Examples 1-24,
the compounds fied in Table 1-1 to Table 1—11 were prepared.
_73_
Table 1-1
Structural formula Preparation
No. method
Example ‘I
(WW Example8
Example 12
(M+H)+
Compound 4 554 e16
Compound 5 537
119 Example17
Compound 6 537
500~1,000 Example19
Table 1-2
Compound 7
{M+Na)+
Compound 8
nd 9
Compound 10 (Magi)?
Compound 11
Compound 12
Table 1-3
nd 13
Compound 14
Compound 15
Compound 16
As in
Compound 17
Compound 18
Table 1-4
Compound 19 As in
Example 9
As in
Compound 20 276
Example 9
Compound 21 '.589 Example 3
Compound 22 402
1000~2000 Example 9 (5)_
nd 23 l ,000~ 2,000 Example 9-(6)
As in
Compound 24 .
Example9 ‘
Table 1-5
ExgrimpinTeB
351 glle8
As in
Example 9
Table 1-6
531 AS in
Compound 31
+ Example9
Compound 32 522 As in
(M+H)+ Example 9
517 As in
Compound 33 ‘
(M+H)+ Example9 ‘
As in
Compound 34 - 463
500~1.000 _
Example8 "
Compound 35 476 AS in
(M+H)+ Example1
Compound 36 480 As in
1.ooo~ 2,000 .
(WM Example9
Compound 37 40:
1.000~ 2,000 Example 10
'
Table 1-7
_30_
Table 1-8
540 Exam Ie 5
..428 Example 6
giJIIe 4
Exgagl‘e 2
‘ ExaAééTe 4
ExaArigre 4
~81—
Table 1-9
Exafigg 22
As in
e 21
As in
Example 22
_32_
Table 1—10
Compound 59 As in
Example 3
50° Example 23
(M+Na)+
As in
Example 23
As in
Example 23
As in
Example 23
As in
As in
Example 3
-83..
Table 1—11
. As in
Com 0 nd 60
e 23
nd 67
(Test 1) Test for Measuring Immunophilin FKBP12 Rotamase Activity
The rotamase (peptidylprolyl isomerase) inhibiting activity of each test compound
was measured by a known method (Harding et al., Nature 341, 758-760, 1989; Holts et al., J.
Am. Chem. Soc. 115, 9925-993 8, 1993.) To be more specific, a plastic cuvette was charged
with 35 mM HEPES (pH 7.8), 12 nM human recombinant FKBP12 (Sigma, F-5398),
0.4 mg/mL oc-chymotrypsin, and a tetst compound dissolved in DMSO at varying
concentrations (DMSO’S final concentration was 0.1%.) uently, 24 mM of the
substrate peptide, succinyl-Ala-Phe-Pro-Phe-paranitroanilide, as dissolved in trifluoroethanol
containing 500 mM of LiCl was added to give a final concentration of 48 “M, whereupon
reaction started. The reaction was carried out at 4°C and the change in absorbance at 390 nm
accompanying the liberation of the paranitroaniline product was monitored. A calculateded
initial rate minus the corresponding value in the absence of the enzyme was used as an index
of se activity. The rotamase inhibiting activity of a test compound was expressed in
relative values (%) with respect to the control value of rotamase ty in the absence of the
compound, and the tration of the compound at which it was capable of inhibiting
se activity by 50% was calculated as an ICso value from its concentration response
curve.
The IC50 values of the respective test compounds are indicated in Table 1-1 to Table
1-1 1.
(Test 2) DissolutionTest
To 5 g of 1,3—butylene glycol, 10 g of water was added and the mixture was d
until homogeneity; thereafter, ethanol was added to make a total volume of 100 mL, whereby
a base was prepared. An excess amount of a test compound was put into a test tube, the
prepared base was added, and the mixture was stirred at 25°C for 7 days and passed through a
membrane filter (0.45 mm); the resulting filtrate was diluted with acetonitrile and the
concentration ofthe diluted solution was measured by HPLC to determine the solubility of
the compound.
A comparative example (1—[2-((2$)[5-(3,4—dimethoxyphenoxy)methyl]-l,2,4—
zol-3 —yl]pyrrolidin—1-yl)—l l -difluorooxoethyl]—3 ,3 ,5 ,5-tetramethylcyclohexanol,
sed in WO2008/075735) had a solubility of 30.8 mg/mL whereas nd 1 had a
solubility of 57.5 mg/mL.
(Test 3) Test for Measuring Hair Development Stimulating Effect in Shaven Mouse
Model
Method
C57BL mice (female, ca. 7-wk old) were shaven on the back and the base prepared
in Test 2 or a solution prepared by dissolving 5% (w/v) of Compound 1 in this base was
administered by applying them to the shaven area in 200—pl, portions once daily starting 3
days after the g (each group consisting of 10 heads.) Every 2 or 3 days after the start
of the administration, the state of hair development in the shavn area was scored in
accordance with the following criteria.
Criteria for scoring the hair development:
1 = No hair pment.
2 = Hair development in less than 30% of the shaven area.
3 = Hair development in at least 30% but less than 60% of the shaven area.
4 = Hair pment in at least 60% but less than 90% of the shaven area.
= Hair development in at least 90% of the shaven area.
Results
As Fig. 1 shows, the group administered with the solution of 5% nd 1 had
their hair development scores increased earlier than the group administered with the base.
The hair development scores in the Compound 1 administered group were higher than those
in the base administered group at day 15 of the administration and onward in the test period.
It threfore became clear that the test nd showed 'a superior hair pment
ating effect. Such superior hair development stimulating effect is exhibited by the
combination of various properties including not only the rotamase inhibiting effect of the
compound but also its good stability, absorbability, and disposition.
(Test 4) Dissolution Test
To 79 mL of ethanol, water was added to give a total volume of 100 mL, whereby a
base was prepared. An excess amount of a test compound was put into a test tube, the
prepared base was added, and the mixture was stirred at 5°C for 3 days and passed through a
membrane filter (0.45 um); the resulting filtrate was diluted with acetonitrile and the
concentration ofthe diluted solution was measured by HPLC to ine the lity of
the compound. nd 40 had a solubility of 113.2 mg/mL.
(Test 5) Test for Measuring Hair Development Stimulating Effect in Shaven Mouse
Model
C57BL mice (female, ca. 7-wk old) were Shaven on the back and the base prepared
in Test 4 or a solution prepared by dissolving 5% (w/v) of Compound 40 in this base was
administered by applying them to the Shaven area in 200-uL portions once daily starting 3
days after the shaving (each group consisting of 10 heads.) Every 2 or 3 days after the start
of the administration, the state of hair development in the shavn area was scored in
accordance with the criteria described in Test 3.
Results
As Fig. 2 shows, the group administered with the solution of 5% Compound 40 had
their hair pment scores increased earlier than the group administered with the base.
-86—
The hair development scores in the Compound 40 administered group were higher than those
in the base administered group at day 15 of the administration and onward in the test period.
It threfore became clear that the test compound showed a superior hair development
stimulating effect.
The superior hair development stimulating effect of Compound 40 is ted by
the combination of various properties including not only the rotamase inhibiting effect of the
compound but also its good stability, absorbability, and ition.
(Test 6) Test for Measuring Anagen Induction Stimulating Effect in Shave Mouse
Model
Method
It is known that as the hair cycle of the mouse skin makes a transition from the
telogen to the anagen phase and as the anagen phae proceeds, the number of proliferating cell
nuclear antigen (PCNA) positive cells in the hair follicle ses (Cravens et al., J.
Endocrinol. the increase in the ty of PCNA is one of
, 191, 415-425, 2006) and, hence,
the markers for the induction of the anagen phase.
The anagen induction stimulating effect of a compound was ed by the
following method with the quantity of skin PCNA being used as an index.
C57BL mice (female, ca. 7-wk old) were shaven on the back and a base (80%
ethanol) or a solution prepared by dissolving 5% (w/V) of Compound 40, 52, 59, 61, 63, 64 or
66 in this base was administered by applying them to the shaven area in 200-uL portions
once daily for 2 days starting 3 days after the shaving (each group consisting of 5 heads.)
About 4 hours after the administration on the second day, the skin at the application site was
sampled and homogenized in a buffer containing 50 mM Tris-HCl (pH 7.6), 150 mM NaCl,
1% NP—40, and a protease inhibitor. By a centrifugal separation ure, a PCNA
containing protein solution was prepared and the quantity of PCNA in the solution was
measured with a PCNA—ELISA kit of chem, Inc.
BQSHJE
As Fig. 3 shows, the group administered with Compound 40 which showed a hair
development stimulating effect in Test 5 showd higher values for the ty of skin PCNA
than the group administered with the base. It threfore became clear that the test ompound
showed a superior anagen induction stimulating effect in the early stage ing the start of
administration.
Like the group administered with Compound 40, the groups stered with the
solutions of Compounds 52, 59, 61, 63, and 64 also showed increases in the quantity of skin
PCNA. It threfore became clear that each of these compounds showed an anagen induction
stimulating effect (Fig. 3.)
[028 8] The same test was conducted on the group administered with Compound 66, which
showed skin PCNA levels imately 1.4 times higher than those in the group
administered with the base.
The superior anagen induction stimulating effect of these compounds is exhibited by
the combination of various properties including not only the rotamase inhibiting effect of the
compounds but also their good stability, absorbability, and disposition.
INDUSTRIAL APPLICABILITY
The present invention enables providing novel compounds that bind to FKBP12 or
pharmaceutically acceptable salts thereof, as well as new therapeutics useful in the
prevention or treatment of ia which comprise those compounds or pharmaceutically
acceptable salts thereof.
Claims (19)
1. A compound represented by formula (1) [where R1 represents either the ing formula (2) or (3) ring A represents either one of the rings represented by the ing formula (4) X represents -(CH2)m-X1-(CH2)n-; X1 represents a bond, -O-, -NRaC(=O)-, -C(=O)NRb-, -NRcS(=O)2-, or 2NRd-; Ra, Rb, Rc, and Rd which may be the same or different each represent a hydrogen atom or a C1-6 alkyl group; m and n which may be the same or different each represent an integer of 0-3; R2 represents: an aryl group; a heteroaryl group, wherein said aryl or heteroaryl group may be substituted by 1-3 substituent groups selected from the group consisting of: a halogen atom, a C1-6 alkyl group, and a C1-6 alkoxy group, wherein said C1-6 alkyl group or C1-6 alkoxy group may be substituted by 1-3 substituent groups selected from the group consisting of a halogen atom and a hydroxy group; a 1,3-benzodioxolanyl group, an indolyl group, a morpholyl group, a hydroxy group, a C1-6 alkyl group wherein said C1-6 alkyl group may be substituted by 1-2 hydroxy an amino group, a mono-C1-6 mino group, a di-C1-6 alkylamino group, a C1-6 alkoxy group, a C1-6 alkylsulfonyloxy group, a pyridonyl group, or a pyrimidinonyl group, or a pharmaceutically acceptable salt thereof.
2. The compound or pharmaceutically acceptable salt thereof ing to claim 1, wherein X is a bond, -CH2O-, -CH2-, -(CH 2)2-, -(CH 2)3-, -O-, -CH2-NHC (=O )-, -CH 2-NHC (=O )-CH 2-, or -CH2-NHS (=O )2-.
3. The compound or pharmaceutically acceptable salt thereof according to claim 1, wherein X is -CH2O- or –CH2-.
4. The compound or pharmaceutically acceptable salt thereof ing to any one of claims 1 to 3, wherein R1 is formula (2).
5. The compound or pharmaceutically acceptable salt thereof according to any one of claims 1 to 4, wherein ring A is either one of the rings of the following formula (5):
6. The compound or pharmaceutically acceptable salt thereof according to any one of claims 1 to 5, wherein R2 is: a phenyl group, a pyridyl group; a pyridazinyl group or a pyrimidyl group, wherein said phenyl group, pyridyl group or pyrimidyl group may be substituted by 1-3 halogen atoms or methoxy groups; a pyridonyl group; or a dinonyl group.
7. The compound or ceutically acceptable salt thereof according to claim 6, wherein R2 is a phenyl group or a pyridyl group, n said phenyl group or pyridyl group may be substituted by 1-3 methoxy groups.
8. The compound or ceutically acceptable salt thereof according to claim 1, wherein R1 is formula (2), ring A is either one of the rings of the following formula (5): X is -CH2O- or -(CH2)2-, R2 is a phenyl group or a pyridyl group wherein said phenyl group or pyridyl group may be substituted by 1-3 y groups.
9. The compound according to claim 1, which is (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )isoxazolyl )pyrrolidinyl )-2,2-difluoro(1- hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)-2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )(2-(5-((pyridin yloxy )methyl zolyl )pyrrolidinyl )ethanone, (S)-2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )(2-(5-((3,4,5- trimethoxyphenoxy )methyl )isoxazolyl )pyrrolidinyl )ethanone, ((3-(1-(2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )acetyl )pyrrolidin yl )isoxazolyl )methyl )benzamide, (S)-N-((3-(1-(2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )acetyl )pyrrolidin yl )isoxazolyl )methyl )benzenesulfonamide, (S)(2-(5-((dimethylamino )methyl )isoxazolyl )pyrrolidinyl )-2,2-difluoro(1- hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(1-((cyclohexylmethyl )sulfonyl )pyrrolidinyl ,4- dimethoxyphenoxy )methyl )isoxazole, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )-1,3,4-oxadiazolyl )pyrrolidinyl )-2,2- ro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)-2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )(2-(5-(phenoxymethyl )- 1,3,4-oxadiazolyl lidinyl )ethanone, (S)-N-((5-(1-(2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )acetyl )pyrrolidin yl )-1,3,4-oxadiazolyl )methyl mide, (S)(2-(5-((dimethylamino l )-1,3,4-oxadiazolyl )pyrrolidinyl )-2,2-difluoro(1- hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(3-((3,4-dimethoxyphenoxy )methyl )-1,2,4-oxadiazolyl )pyrrolidinyl )-2,2- difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )methyl-1H-pyrazolyl )pyrrolidinyl )-2,2- difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(3-((3,4-dimethoxyphenoxy l )-isoxazolyl )pyrrolidinyl )-2,2-difluoro (1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )-1H-pyrazolyl )pyrrolidinyl )-2,2-difluoro- 2-(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )-1,3,4-thiadiazolyl )pyrrolidinyl )-2,2- difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )-4H-1,2,4-triazolyl )pyrrolidinyl )-2,2- ro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )methyl-1H-1,2,4-triazolyl )pyrrolidin yl )-2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )oxazolyl )pyrrolidinyl )-2,2-difluoro(1- hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )thiazolyl )pyrrolidinyl difluoro(1- hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, (S)-2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )(2-(5- (phenoxymethyl )isoxazolyl )pyrrolidinyl )ethanone, (S)-2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )(2-(5-((pyrimidin yloxy )methyl )isoxazolyl )pyrrolidinyl one, (S)((3-(1-(2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl l )pyrrolidin yl )isoxazolyl )methyl idin-4(1H )-one, (S)-2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )(2-(5-((pyrimidin yloxy )methyl )isoxazolyl )pyrrolidinyl )ethanone, (S)-2,2-difluoro(2-(5-((3-fluorophenoxy )methyl )isoxazolyl )pyrrolidinyl )(1- hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone, or ((3-(1-(2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )acetyl )pyrrolidin yl )isoxazolyl )methyl )pyridin-4(1H )-one, or a pharmaceutically acceptable salt thereof.
10. (S)(2-(5-((3,4-dimethoxyphenoxy )methyl )isoxazolyl )pyrrolidinyl )-2,2- difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl )ethanone ented by the following formula or a pharmaceutically acceptable salt f:
11. (S)(2-(5-((3,4-Dimethoxyphenoxy)methyl)-1,3,4-oxadiazolyl )pyrrolidinyl)- 2,2-difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)ethanone or a pharmaceutically acceptable salt thereof.
12. (S)-2,2-Difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)(2-(5-((3,4,5- trimethoxyphenoxy)methyl)isoxaolyl)pyrrolidinyl)ethanone represented by the following formula or a pharmaceutically acceptable salt f:
13. (S)-2,2-Difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)(2-(5-( phenoxymethyl)-1,3,4-oxadiazolyl)pyrrolidinyl)ethanone or a pharmaceutically acceptable salt thereof.
14. (S)-2,2-Difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)(2-(5-((pyridin yloxy)methyl)isoxazolyl)pyrrolidinyl)ethanone represented by the following formula or a pharmaceutically acceptable salt thereof:
15. 2-Difluoro(1-hydroxy-3,3,5,5-tetramethylcyclohexyl)(2-(5-((pyridin yloxy)methyl)isoxazolyl)pyrrolidinyl)ethanone or a pharmaceutically acceptable salt thereof.
16. A compound represented by the ing formula or a pharmaceutically acceptable salt thereof: F O F N
17. A pharmaceutical comprising, as an active ingredient, the compound or pharmaceutically acceptable salt thereof according to any one of claims 1 to 16.
18. An agent for preventing or treating alopecia which comprises as an active ingredient the compound or pharmaceutically acceptable salt thereof according to any one of claims 1 to
19. The use of a compound according to any one of claims 1 to 16 in the manufacture of a medicament for the tion or treatment of alopecia.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011056149 | 2011-03-15 | ||
JP2011-056149 | 2011-03-15 | ||
PCT/JP2012/056624 WO2012124750A1 (en) | 2011-03-15 | 2012-03-15 | Azole derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ615210A NZ615210A (en) | 2014-12-24 |
NZ615210B2 true NZ615210B2 (en) | 2015-03-25 |
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