JP2012136437A - Heterocyclic 5-membered ring compound - Google Patents
Heterocyclic 5-membered ring compound Download PDFInfo
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- JP2012136437A JP2012136437A JP2009095659A JP2009095659A JP2012136437A JP 2012136437 A JP2012136437 A JP 2012136437A JP 2009095659 A JP2009095659 A JP 2009095659A JP 2009095659 A JP2009095659 A JP 2009095659A JP 2012136437 A JP2012136437 A JP 2012136437A
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 211
- 125000000623 heterocyclic group Chemical group 0.000 title abstract 2
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 15
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 15
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 66
- 125000004432 carbon atom Chemical group C* 0.000 claims description 53
- -1 trifluoromethylsulfonyloxy group Chemical group 0.000 claims description 46
- 125000005843 halogen group Chemical group 0.000 claims description 27
- 125000003545 alkoxy group Chemical group 0.000 claims description 16
- 125000000217 alkyl group Chemical group 0.000 claims description 16
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- 125000004414 alkyl thio group Chemical group 0.000 claims description 12
- 125000005842 heteroatom Chemical group 0.000 claims description 9
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 8
- 125000001160 methoxycarbonyl group Chemical group [H]C([H])([H])OC(*)=O 0.000 claims description 6
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 6
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 5
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 5
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 4
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 3
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 125000000392 cycloalkenyl group Chemical group 0.000 claims description 2
- 125000006263 dimethyl aminosulfonyl group Chemical group [H]C([H])([H])N(C([H])([H])[H])S(*)(=O)=O 0.000 claims description 2
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 claims description 2
- 125000003754 ethoxycarbonyl group Chemical group C(=O)(OCC)* 0.000 claims description 2
- 125000004458 methylaminocarbonyl group Chemical group [H]N(C(*)=O)C([H])([H])[H] 0.000 claims description 2
- 125000006216 methylsulfinyl group Chemical group [H]C([H])([H])S(*)=O 0.000 claims description 2
- 125000004170 methylsulfonyl group Chemical group [H]C([H])([H])S(*)(=O)=O 0.000 claims description 2
- 102100023113 Long-chain fatty acid transport protein 4 Human genes 0.000 abstract description 12
- 125000004430 oxygen atom Chemical group O* 0.000 abstract description 12
- 230000002401 inhibitory effect Effects 0.000 abstract description 11
- 229910052757 nitrogen Chemical group 0.000 abstract description 4
- 101000685660 Homo sapiens Long-chain fatty acid transport protein 4 Proteins 0.000 abstract description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 abstract 3
- 125000004433 nitrogen atom Chemical group N* 0.000 abstract 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 1
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical group C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 abstract 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 abstract 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 189
- 239000000203 mixture Substances 0.000 description 118
- 239000000243 solution Substances 0.000 description 89
- 230000015572 biosynthetic process Effects 0.000 description 64
- 238000003786 synthesis reaction Methods 0.000 description 64
- 239000002904 solvent Substances 0.000 description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 51
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 49
- 239000011541 reaction mixture Substances 0.000 description 47
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 44
- 239000012044 organic layer Substances 0.000 description 44
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 44
- 239000000843 powder Substances 0.000 description 42
- 238000006243 chemical reaction Methods 0.000 description 39
- 238000010898 silica gel chromatography Methods 0.000 description 37
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 36
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- YBIXOPDHUOOMQT-IRLDBZIGSA-N C(C1=CC=CC=C1)N1CCC(CC1)NC(=O)N[C@H]1[C@@H](OC(C1)=O)C1=CC=C(C=C1)Cl Chemical compound C(C1=CC=CC=C1)N1CCC(CC1)NC(=O)N[C@H]1[C@@H](OC(C1)=O)C1=CC=C(C=C1)Cl YBIXOPDHUOOMQT-IRLDBZIGSA-N 0.000 description 29
- 229920006395 saturated elastomer Polymers 0.000 description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 27
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 27
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 27
- 238000000034 method Methods 0.000 description 27
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 description 25
- OAYLNYINCPYISS-UHFFFAOYSA-N ethyl acetate;hexane Chemical compound CCCCCC.CCOC(C)=O OAYLNYINCPYISS-UHFFFAOYSA-N 0.000 description 22
- 235000017557 sodium bicarbonate Nutrition 0.000 description 22
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 22
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 18
- 238000001816 cooling Methods 0.000 description 18
- 238000001035 drying Methods 0.000 description 17
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 14
- 235000014113 dietary fatty acids Nutrition 0.000 description 14
- 229930195729 fatty acid Natural products 0.000 description 14
- 239000000194 fatty acid Substances 0.000 description 14
- 150000004665 fatty acids Chemical class 0.000 description 14
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 description 12
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 12
- WORJEOGGNQDSOE-UHFFFAOYSA-N chloroform;methanol Chemical compound OC.ClC(Cl)Cl WORJEOGGNQDSOE-UHFFFAOYSA-N 0.000 description 12
- 238000010992 reflux Methods 0.000 description 12
- 101710109661 Long-chain fatty acid transport protein 4 Proteins 0.000 description 11
- 239000012230 colorless oil Substances 0.000 description 11
- DYLIWHYUXAJDOJ-OWOJBTEDSA-N (e)-4-(6-aminopurin-9-yl)but-2-en-1-ol Chemical compound NC1=NC=NC2=C1N=CN2C\C=C\CO DYLIWHYUXAJDOJ-OWOJBTEDSA-N 0.000 description 10
- LMDZBCPBFSXMTL-UHFFFAOYSA-N 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide Substances CCN=C=NCCCN(C)C LMDZBCPBFSXMTL-UHFFFAOYSA-N 0.000 description 10
- ASOKPJOREAFHNY-UHFFFAOYSA-N 1-Hydroxybenzotriazole Chemical group C1=CC=C2N(O)N=NC2=C1 ASOKPJOREAFHNY-UHFFFAOYSA-N 0.000 description 10
- 239000002253 acid Substances 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- ZVQOOHYFBIDMTQ-UHFFFAOYSA-N [methyl(oxido){1-[6-(trifluoromethyl)pyridin-3-yl]ethyl}-lambda(6)-sulfanylidene]cyanamide Chemical compound N#CN=S(C)(=O)C(C)C1=CC=C(C(F)(F)F)N=C1 ZVQOOHYFBIDMTQ-UHFFFAOYSA-N 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 9
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 8
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzenecarboxaldehyde Natural products O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 235000019198 oils Nutrition 0.000 description 8
- UCPYLLCMEDAXFR-UHFFFAOYSA-N triphosgene Chemical compound ClC(Cl)(Cl)OC(=O)OC(Cl)(Cl)Cl UCPYLLCMEDAXFR-UHFFFAOYSA-N 0.000 description 8
- 238000003756 stirring Methods 0.000 description 7
- YUBDLZGUSSWQSS-UHFFFAOYSA-N 1-benzylpiperidin-4-amine Chemical compound C1CC(N)CCN1CC1=CC=CC=C1 YUBDLZGUSSWQSS-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 229960000583 acetic acid Drugs 0.000 description 6
- 235000019270 ammonium chloride Nutrition 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 6
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 5
- 239000002274 desiccant Substances 0.000 description 5
- MVEAAGBEUOMFRX-UHFFFAOYSA-N ethyl acetate;hydrochloride Chemical compound Cl.CCOC(C)=O MVEAAGBEUOMFRX-UHFFFAOYSA-N 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 5
- 235000019341 magnesium sulphate Nutrition 0.000 description 5
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 5
- 239000011976 maleic acid Substances 0.000 description 5
- 229940098895 maleic acid Drugs 0.000 description 5
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 5
- WJCJCSBZEIWYTB-SCZZXKLOSA-N (2R,3R)-2-(4-chlorophenyl)-5-oxooxolane-3-carboxylic acid Chemical compound OC(=O)[C@@H]1CC(=O)O[C@H]1c1ccc(Cl)cc1 WJCJCSBZEIWYTB-SCZZXKLOSA-N 0.000 description 4
- WJCJCSBZEIWYTB-UHFFFAOYSA-N 2-(4-chlorophenyl)-5-oxooxolane-3-carboxylic acid Chemical compound OC(=O)C1CC(=O)OC1C1=CC=C(Cl)C=C1 WJCJCSBZEIWYTB-UHFFFAOYSA-N 0.000 description 4
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 4
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 description 4
- YRNWVULYMMQXLT-AEFFLSMTSA-N O=C([C@H](C1)[C@H](C2=CC=CC=C2)NC1=O)NCCC(C=C1)=CC=C1Cl Chemical compound O=C([C@H](C1)[C@H](C2=CC=CC=C2)NC1=O)NCCC(C=C1)=CC=C1Cl YRNWVULYMMQXLT-AEFFLSMTSA-N 0.000 description 4
- 208000008589 Obesity Diseases 0.000 description 4
- 125000004122 cyclic group Chemical group 0.000 description 4
- 235000020824 obesity Nutrition 0.000 description 4
- IVXQBCUBSIPQGU-UHFFFAOYSA-N piperazine-1-carboxamide Chemical compound NC(=O)N1CCNCC1 IVXQBCUBSIPQGU-UHFFFAOYSA-N 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 229940014800 succinic anhydride Drugs 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 4
- GSJXJZOWHSTWOX-UHFFFAOYSA-N 1-[(4-chlorophenyl)methyl]piperazine Chemical compound C1=CC(Cl)=CC=C1CN1CCNCC1 GSJXJZOWHSTWOX-UHFFFAOYSA-N 0.000 description 3
- AVPYQKSLYISFPO-UHFFFAOYSA-N 4-chlorobenzaldehyde Chemical compound ClC1=CC=C(C=O)C=C1 AVPYQKSLYISFPO-UHFFFAOYSA-N 0.000 description 3
- 125000006283 4-chlorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1Cl)C([H])([H])* 0.000 description 3
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 3
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
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- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000012279 sodium borohydride Substances 0.000 description 3
- 229910000033 sodium borohydride Inorganic materials 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 3
- UGUJBBPWDUGJLX-ZJUUUORDSA-N (2r,3r)-2-(4-chlorophenyl)oxolane-3-carboxylic acid Chemical compound OC(=O)[C@@H]1CCO[C@H]1C1=CC=C(Cl)C=C1 UGUJBBPWDUGJLX-ZJUUUORDSA-N 0.000 description 2
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- 125000004400 (C1-C12) alkyl group Chemical group 0.000 description 2
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- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
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- PNUDBSZABWYHHK-UHFFFAOYSA-N 2-(4-chlorophenyl)-1-(4-methylphenyl)ethanone Chemical compound C1=CC(C)=CC=C1C(=O)CC1=CC=C(Cl)C=C1 PNUDBSZABWYHHK-UHFFFAOYSA-N 0.000 description 2
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- NBYSFWKNMLCZLO-UHFFFAOYSA-N 2-hydroxy-1,2-bis(4-methylphenyl)ethanone Chemical compound C1=CC(C)=CC=C1C(O)C(=O)C1=CC=C(C)C=C1 NBYSFWKNMLCZLO-UHFFFAOYSA-N 0.000 description 2
- DMVNOVLNOROQOF-UHFFFAOYSA-N 3-(4-chlorophenyl)-4-hydroxy-4-(4-methylphenyl)butanoic acid Chemical compound ClC1=CC=C(C=C1)C(CC(=O)O)C(C1=CC=C(C=C1)C)O DMVNOVLNOROQOF-UHFFFAOYSA-N 0.000 description 2
- VSBRJCKDDSOFNZ-UHFFFAOYSA-N 3-(4-chlorophenyl)oxolan-2-one Chemical compound C1=CC(Cl)=CC=C1C1C(=O)OCC1 VSBRJCKDDSOFNZ-UHFFFAOYSA-N 0.000 description 2
- WZWIQYMTQZCSKI-UHFFFAOYSA-N 4-cyanobenzaldehyde Chemical compound O=CC1=CC=C(C#N)C=C1 WZWIQYMTQZCSKI-UHFFFAOYSA-N 0.000 description 2
- 125000004801 4-cyanophenyl group Chemical group [H]C1=C([H])C(C#N)=C([H])C([H])=C1* 0.000 description 2
- LDOIVIJNTBXDBY-UHFFFAOYSA-N 5-oxo-2-[4-(trifluoromethyl)phenyl]oxolane-3-carboxylic acid Chemical compound FC(C1=CC=C(C=C1)C1OC(CC1C(=O)O)=O)(F)F LDOIVIJNTBXDBY-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 206010003210 Arteriosclerosis Diseases 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
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- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
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- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
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- 235000017281 sodium acetate Nutrition 0.000 description 1
- AAYACJGHNRIFCT-YRJJIGPTSA-M sodium glycochenodeoxycholate Chemical compound [Na+].C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(=O)NCC([O-])=O)C)[C@@]2(C)CC1 AAYACJGHNRIFCT-YRJJIGPTSA-M 0.000 description 1
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- 239000008117 stearic acid Substances 0.000 description 1
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- 208000024891 symptom Diseases 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 229960001367 tartaric acid Drugs 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- BTYHAYZTYOWFQL-UHFFFAOYSA-N tert-butyl 1-aminopiperidine-4-carboxylate Chemical compound CC(C)(C)OC(=O)C1CCN(N)CC1 BTYHAYZTYOWFQL-UHFFFAOYSA-N 0.000 description 1
- XBXCNNQPRYLIDE-UHFFFAOYSA-N tert-butylcarbamic acid Chemical compound CC(C)(C)NC(O)=O XBXCNNQPRYLIDE-UHFFFAOYSA-N 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
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- GGUBFICZYGKNTD-UHFFFAOYSA-N triethyl phosphonoacetate Chemical compound CCOC(=O)CP(=O)(OCC)OCC GGUBFICZYGKNTD-UHFFFAOYSA-N 0.000 description 1
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000012588 trypsin Substances 0.000 description 1
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- 238000005406 washing Methods 0.000 description 1
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- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/273—2-Pyrrolidones with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to other ring carbon atoms
- C07D207/277—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P3/06—Antihyperlipidemics
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P3/08—Drugs for disorders of the metabolism for glucose homeostasis
- A61P3/10—Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/12—Antihypertensives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/06—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D231/08—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with oxygen or sulfur atoms directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/30—Oxygen or sulfur atoms
- C07D233/32—One oxygen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
- C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
- C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
- C07D249/10—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D249/12—Oxygen or sulfur atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
- C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
- C07D261/04—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
-
- C—CHEMISTRY; METALLURGY
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Abstract
Description
本発明は、ヘテロ5員環化合物に関する。更に詳しくは、小腸上皮細胞における脂肪酸特異的トランスポーターであるFATP4(Fatty acid transport protein 4)を阻害することから腸管での脂肪酸吸収阻害作用を有し、新規な高トリグリセライド血症、肥満症、糖尿病の治療薬として有用な新規ヘテロ5員環化合物に関する。 The present invention relates to a hetero 5-membered ring compound. More specifically, since it inhibits fatty acid-specific transporter FATP4 (Fatty acid transport protein 4) in small intestinal epithelial cells, it has an action to inhibit fatty acid absorption in the intestinal tract, and thus novel hypertriglyceridemia, obesity, diabetes The present invention relates to a novel hetero 5-membered ring compound useful as a therapeutic agent.
FATP4を阻害する物質としては、ジヒドロピリミジン誘導体が報告されている(非特許文献1参照)。しかしながら、それら公知の化合物のFATP4阻害作用は充分とは言えず、それら自身がin vivoで脂肪酸吸収阻害作用を示すことはない。いずれも本発明の化合物と化学構造が異なる。 A dihydropyrimidine derivative has been reported as a substance that inhibits FATP4 (see Non-Patent Document 1). However, it cannot be said that the known compounds have sufficient FATP4 inhibitory action, and they themselves do not show fatty acid absorption inhibitory action in vivo. All have different chemical structures from the compounds of the present invention.
本発明の目的は、優れたFATP4阻害作用を有する化合物を提供することである。 An object of the present invention is to provide a compound having an excellent FATP4 inhibitory action.
本発明者らは前記課題を解決するために鋭意研究を進めた結果、ある種のヘテロ5員環化合物がFATP4を阻害することを見出し、本発明を完成した。
かかる本発明の一実施形態は、
下記式(I)で表されるヘテロ5員環化合物又はその製薬学的に許容される塩である。
Aは−CO−又は−CH2−を示し、
Xは−CH2−、−O−又は−NH−を示し、
Y及びWは同一又は異なって、
Zは−CH2−、−O−又は−NH−を示し、
Arは
R2、R3及びR4は同一又は異なって、水素原子、ハロゲン原子で置換されても良い炭素数1〜12のアルキル基、ハロゲン原子で置換されても良い炭素数1〜10のアルコキシ基、炭素数1〜6のアルキルチオ基、ハロゲン原子、ニトロ基、シアノ基、メトキシカルボニル基、メチルスルフィニル基、メチルスルホニル基、ジメチルアミノスルホニル基又はトリフルオロメチルスルホニルオキシ基を示し、
R5はハロゲン原子、ニトロ基又はシアノ基を示し、
R1は−CO−NR6R7、−CO2−R8、−NHCO−R9、
R7は水素原子、−(CH2)n−R19又はアリル基を示し、
R8は
R9は
R10、R11及びR12は同一又は異なって、水素原子、塩素原子、メチル基又はメトキシ基を示し、
R13は炭素数1〜12のアルキル基、ベンジルオキシカルボニル基、
R14は水素原子、ハロゲン原子、炭素数1〜10のアルコキシ基、炭素数1〜6のアルキルチオ基、炭素数3〜8のシクロアルキル基、炭素数4〜8のシクロアルケニル基、メトキシカルボニル基、ベンジルオキシカルボニル基、
R15、R16及びR17は同一又は異なって、水素原子、ハロゲン原子、炭素数1〜12のアルキル基、炭素数1〜10のアルコキシ基又は炭素数1〜6のアルキルチオ基を示し、
R18はフェニル基、エトキシカルボニル基、フェネチル基、
R19は水素原子、水酸基、カルバモイル基、メチルアミノカルボニル基、シアノ基、カルボキシル基、メトキシカルボニル基又はアリル基を示し、
R20、R21及びR22は同一又は異なって、水素原子、ハロゲン原子、ハロゲン原子で置換されても良い炭素数1〜12のアルキル基、ハロゲン原子で置換されても良い炭素数1〜10のアルコキシ基、炭素数1〜6のアルキルチオ基、フェニル基又はジメチルアミノ基を示し、
R23はハロゲン原子、炭素数1〜12のアルキル基又は炭素数1〜6のアルキルチオ基を示し、
R24、R25及びR26は同一又は異なって、ハロゲン原子、炭素数1〜12のアルキル基、炭素数1〜10のアルコキシ基又はニトロ基を示し、
R27、R28及びR29は同一又は異なって、水素原子、ハロゲン原子、炭素数1〜10のアルキル基、炭素数1〜10のアルコキシ基又はシアノ基を示し、
nは1〜20の整数を示す。
As a result of diligent research to solve the above-mentioned problems, the present inventors have found that a certain hetero 5-membered ring compound inhibits FATP4 and completed the present invention.
One embodiment of the present invention is as follows:
A hetero 5-membered ring compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof.
A represents —CO— or —CH 2 —;
X represents —CH 2 —, —O— or —NH—;
Y and W are the same or different,
Z represents —CH 2 —, —O— or —NH—;
Ar is
R 2 , R 3 and R 4 are the same or different and are a hydrogen atom, an alkyl group having 1 to 12 carbon atoms which may be substituted with a halogen atom, or an alkoxy group having 1 to 10 carbon atoms which may be substituted with a halogen atom. , An alkylthio group having 1 to 6 carbon atoms, a halogen atom, a nitro group, a cyano group, a methoxycarbonyl group, a methylsulfinyl group, a methylsulfonyl group, a dimethylaminosulfonyl group or a trifluoromethylsulfonyloxy group,
R 5 represents a halogen atom, a nitro group or a cyano group,
R 1 is —CO—NR 6 R 7 , —CO 2 —R 8 , —NHCO—R 9 ,
R 7 represents a hydrogen atom, — (CH 2 ) n—R 19 or an allyl group,
R 8 is
R 9 is
R 10 , R 11 and R 12 are the same or different and each represents a hydrogen atom, a chlorine atom, a methyl group or a methoxy group,
R 13 represents an alkyl group having 1 to 12 carbon atoms, a benzyloxycarbonyl group,
R 14 is a hydrogen atom, a halogen atom, an alkoxy group having 1 to 10 carbon atoms, an alkylthio group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, a cycloalkenyl group having 4 to 8 carbon atoms, or a methoxycarbonyl group. Benzyloxycarbonyl group,
R 15 , R 16 and R 17 are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or an alkylthio group having 1 to 6 carbon atoms,
R 18 is a phenyl group, an ethoxycarbonyl group, a phenethyl group,
R 19 represents a hydrogen atom, a hydroxyl group, a carbamoyl group, a methylaminocarbonyl group, a cyano group, a carboxyl group, a methoxycarbonyl group or an allyl group,
R 20 , R 21 and R 22 are the same or different and are a hydrogen atom, a halogen atom, an alkyl group having 1 to 12 carbon atoms which may be substituted with a halogen atom, or 1 to 10 carbon atoms which may be substituted with a halogen atom. An alkoxy group, an alkylthio group having 1 to 6 carbon atoms, a phenyl group or a dimethylamino group,
R 23 represents a halogen atom, an alkyl group having 1 to 12 carbon atoms or an alkylthio group having 1 to 6 carbon atoms,
R 24 , R 25 and R 26 are the same or different and each represents a halogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a nitro group,
R 27 , R 28 and R 29 are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a cyano group,
n shows the integer of 1-20.
本発明の他の実施形態は、下記式(II)で表されるヘテロ5員環化合物又はその製薬学的に許容される塩である。
ただし、式(II)中、R18は上記R18と同意義である。Arは
However, in formula (II), R 18 has the same meaning as R 18 described above. Ar is
更に、本発明の他の実施形態は、下記式(III)で表されるヘテロ5員環化合物又はその製薬学的に許容される塩である。
式(III)中、R13及びArは上記R13及びArとそれぞれ同意義である。
Furthermore, another embodiment of the present invention is a hetero 5-membered ring compound represented by the following formula (III) or a pharmaceutically acceptable salt thereof.
In the formula (III), R 13 and Ar have the same meanings as R 13 and Ar, respectively.
本発明により、優れたFATP4阻害作用を有する化合物を提供することが可能となった。 According to the present invention, it has become possible to provide a compound having an excellent FATP4 inhibitory action.
以下に、本発明において使用される定義を説明する。
ハロゲン原子としては、フッ素原子、塩素原子、臭素原子又はヨウ素原子が挙げられる。
炭素原子数1〜12のアルキル基とは、直鎖状、分岐鎖状又は環状の炭素原子数1〜12のアルキル基を示し、例えば、メチル基、エチル基、プロピル基、t−ブチル基、シクロペンチル基、シクロヘキシル基、シクロペンチルメチル基が挙げられる。
ハロゲン原子で置換されても良い炭素数1〜12のアルキル基とは、直鎖状、分岐鎖状又は環状のハロゲン原子で置換された炭素原子数1〜12のアルキル基を示し、例えば、トリフルオロメチル基、ペンタフルオロエチル基が挙げられる。
炭素原子数1〜10のアルコキシ基とは、直鎖状、分岐鎖状又は環状の炭素原子数1〜10のアルコキシ基を示し、例えば、メトキシ基、エトキシ基、プロポキシ基、t−ブトキシ基、シクロペンチルオキシ基、シクロヘキシルオキシ基、シクロペンチルメチルオキシ基が挙げられる。
ハロゲン原子で置換されても良い炭素原子数1〜10のアルコキシ基とは、直鎖状、分岐鎖状又は環状のハロゲン原子で置換された炭素原子数1〜10のアルコキシ基を示し、例えば、トリフルオロメトキシ基、ペンタフルオロエトキシ基が挙げられる。
炭素原子数1〜6のアルキルチオ基とは、直鎖状、分岐鎖状又は環状の炭素原子数1〜6のアルキルチオ基を示し、例えば、メチルチオ基、エチルチオ基、プロピルチオ基、t−ブチルチオ基、シクロペンチルチオ基、シクロヘキシルチオ基、シクロペンチルメチルチオ基が挙げられる。
炭素数3〜8のシクロアルキル基とは、例えば、シクロブチル基、シクロペンチル基、シクロヘキシル基が挙げられる。
炭素数2〜18のアルケニル基とは直鎖状、分岐鎖状又は環状の炭素数2〜18のアルケニル基を示し、例えば、ビニル基、ペンテニル基、シクロヘキセニル基が挙げられる。
炭素数4〜8シクロアルケニル基とは、例えば、シクロペンテニル基、シクロヘキセニル基が挙げられる。
The definitions used in the present invention are described below.
Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom.
A C1-C12 alkyl group shows a linear, branched or cyclic C1-C12 alkyl group, for example, a methyl group, an ethyl group, a propyl group, t-butyl group, Examples include a cyclopentyl group, a cyclohexyl group, and a cyclopentylmethyl group.
The alkyl group having 1 to 12 carbon atoms that may be substituted with a halogen atom refers to an alkyl group having 1 to 12 carbon atoms that is substituted with a linear, branched, or cyclic halogen atom. Examples include a fluoromethyl group and a pentafluoroethyl group.
The alkoxy group having 1 to 10 carbon atoms refers to a linear, branched or cyclic alkoxy group having 1 to 10 carbon atoms, such as a methoxy group, an ethoxy group, a propoxy group, a t-butoxy group, Examples include a cyclopentyloxy group, a cyclohexyloxy group, and a cyclopentylmethyloxy group.
The alkoxy group having 1 to 10 carbon atoms which may be substituted with a halogen atom refers to an alkoxy group having 1 to 10 carbon atoms which is substituted with a linear, branched or cyclic halogen atom. Examples thereof include a trifluoromethoxy group and a pentafluoroethoxy group.
The alkylthio group having 1 to 6 carbon atoms refers to a linear, branched or cyclic alkylthio group having 1 to 6 carbon atoms, such as a methylthio group, an ethylthio group, a propylthio group, a t-butylthio group, Examples include a cyclopentylthio group, a cyclohexylthio group, and a cyclopentylmethylthio group.
Examples of the cycloalkyl group having 3 to 8 carbon atoms include a cyclobutyl group, a cyclopentyl group, and a cyclohexyl group.
A C2-C18 alkenyl group shows a linear, branched or cyclic C2-C18 alkenyl group, for example, a vinyl group, a pentenyl group, and a cyclohexenyl group.
Examples of the C 4-8 cycloalkenyl group include a cyclopentenyl group and a cyclohexenyl group.
本発明において医薬上許容される塩としては、酸又はアルカリ付加塩が挙げられる。酸としては、硫酸、塩酸、燐酸などの鉱酸との塩、酢酸、シュウ酸、乳酸、酒石酸、フマール酸、マレイン酸、メタンスルホン酸、ベンゼンスルホン酸などの有機酸との塩などを挙げることができ、アルカリとしては、ナトリウム、カリウムなどの金属イオン、アルキルアンモニウムなどのアンモニウムイオンを挙げることができる。
本発明の化合物は単一の化合物であっても、あるいは立体異性体の混合物であってもよく、又、これらの水和物もしくは溶媒和物であってもよい。更に、後述する実施例124あるいは125の化合物のように前記式(I)で表される化合物の2量体であってもよい。
Examples of pharmaceutically acceptable salts in the present invention include acid or alkali addition salts. Examples of acids include salts with mineral acids such as sulfuric acid, hydrochloric acid and phosphoric acid, salts with organic acids such as acetic acid, oxalic acid, lactic acid, tartaric acid, fumaric acid, maleic acid, methanesulfonic acid and benzenesulfonic acid. Examples of the alkali include metal ions such as sodium and potassium, and ammonium ions such as alkylammonium.
The compound of the present invention may be a single compound, a mixture of stereoisomers, or a hydrate or solvate thereof. Further, it may be a dimer of the compound represented by the formula (I) like the compound of Example 124 or 125 described later.
前記式(I)で表される本発明の化合物の製造方法を以下に説明する。
なお、WSC・HClは1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩、DCCはジシクロヘキシルカルボジイミド、HOBtは1−ヒドロキシベンゾトリアゾール、CANは硝酸セリウム(IV)アンモニウム、TBABはテトラブチルアンモニウムブロマイド及びTMSはトリメチルシリル基を表す。
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Y及びWは
WSC · HCl is 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride, DCC is dicyclohexylcarbodiimide, HOBt is 1-hydroxybenzotriazole, CAN is cerium (IV) ammonium nitrate, and TBAB is tetrabutylammonium Bromide and TMS represent a trimethylsilyl group.
In the formula (I) in the present invention, A represents —CO—, X represents an oxygen atom, and Y and W represent
また、前記の化合物(3)は反応スキーム2に示した方法でも合成することができる。すなわち、化合物(4)をワインレブアミド化後、アリール化し化合物(5)を得、次いで酢酸を導入後、ケトンの還元、エステルの加水分解を順次行い得られた化合物(6)を、塩酸存在下、室温で閉環することにより化合物(3)のcis体とtrans体の混合物を得ることができる。
なお、ここで得られた化合物(3)のcis体とtrans体の混合物を酢酸存在下、加熱することにより異性化させ化合物(3)のtrans体を単一化合物として得ることができる。
The compound (3) can also be synthesized by the method shown in Reaction Scheme 2. That is, compound (4) was subjected to wine levamidation, arylated to obtain compound (5), and then acetic acid was introduced, followed by reduction of ketone and hydrolysis of ester in the presence of hydrochloric acid. The mixture of the cis form and the trans form of Compound (3) can be obtained by ring-closing at room temperature.
The mixture of the cis form and the trans form of the compound (3) obtained here is isomerized by heating in the presence of acetic acid to obtain the trans form of the compound (3) as a single compound.
本発明における前記式(I)において、Aは−CO−を示し、X及びZは酸素原子を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、X及びZは−NH−を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Zは−NH−を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、X及びZは−NH−を示し、Yは
本発明における前記式(I)において、Aは−CO−を示し、Xは−NH−を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、Xは−CH2−を示し、Yは
本発明における前記式(I)において、Aは−CO−を示し、Xは−NH−を示し、Yは
本発明における前記式(I)において、Aは−CH2−を示しXは酸素原子を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、X及びZは−CH2−を示し、Yは
を示し、R1は
R 1 is
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Zは−CH2−を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Zは−CH2−を示し、Y及びWは
又は
Or
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Zは−CH2−を示し、Y及びWは
を示し、Arは前記と同意義である化合物群は、反応スキーム14に示したように、反応スキーム13で得られた化合物(31)をアミド化後、脱保護し、次いで還元的にアミンをベンジル化することで、化合物(35)として得ることができる。
In the compound group in which Ar is as defined above, as shown in Reaction Scheme 14, the compound (31) obtained in Reaction Scheme 13 is amidated, deprotected, and then reductively converted to an amine. The compound (35) can be obtained by benzylation.
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Zは−CH2−を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Zは−CH2−を示し、Y及びWは
本発明における前記式(I)において、Aは−CO−を示し、Xは酸素原子を示し、Zは−CH2−を示し、Y及びWは
以下に、参考例、実施例及び試験例を示して本発明をさらに具体的に説明する。
(参考例1)
(−)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸の合成
(1)2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸の合成
4−クロロベンズアルデヒド(163g)、無水コハク酸(174g)に塩化亜鉛(II)(339g)のクロロホルム(1L)懸濁液に、トリエチルアミン(340mL)を室温で加え、5日間攪拌した。反応液に2N塩酸を加え、酢酸エチルで抽出、有機層を飽和食塩水で2回洗浄した。硫酸マグネシウムで乾燥後、減圧下溶媒留去し、2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸 (237g)をcis体とtrans体の混合物の無色粉末として得た。
1HNMR (300MHz, DMSO-d6) cis体とtrans体の混合物
δ 2.73-3.01 (m, 2H), 3.38-3.77 (m, 1H), 5.60, 5.85 (d, J =8.1Hz, each 1/2H), 7.28-7.52 (m, 4H)
Hereinafter, the present invention will be described more specifically with reference to reference examples, examples and test examples.
(Reference Example 1)
Synthesis of (−)-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid (1) Synthesis of 2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid 4-chlorobenzaldehyde ( 163 g), succinic anhydride (174 g), triethylamine (340 mL) was added to a chloroform (1 L) suspension of zinc chloride (II) (339 g) at room temperature, and the mixture was stirred for 5 days. 2N Hydrochloric acid was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed twice with saturated brine. After drying over magnesium sulfate, the solvent was distilled off under reduced pressure to obtain 2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid (237 g) as a colorless powder of a mixture of cis and trans isomers.
1 HNMR (300 MHz, DMSO-d 6 ) Mixture of cis and trans δ δ 2.73-3.01 (m, 2H), 3.38-3.77 (m, 1H), 5.60, 5.85 (d, J = 8.1 Hz, each 1 / 2H), 7.28-7.52 (m, 4H)
(2)トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸メチルの合成
参考例1(1)で得られた化合物(237g)のトリフルオロ酢酸(971mL)溶液に濃硫酸(31mL)を加え、40分間加熱還流した。反応液に食塩水を加え、酢酸エチルで抽出した。硫酸マグネシウムで乾燥後、減圧下溶媒留去し、トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸(213g)を得た。
ここで得られた化合物(213g)のクロロホルム−メタノール(1:1混合、1.3L)溶液に1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(255g)を加え一晩攪拌した。反応液に水を加え、酢酸エチルで抽出し、有機層を飽和重曹水で2回洗浄した。硫酸マグネシウムで乾燥後、減圧下溶媒留去し、残留物をシリカゲルカラムクロマトグラフィー(20%酢酸エチル−ヘキサン)で精製し、トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸メチル(163g)を無色粉末として得た。
1HNMR (300 MHz, CDCl3) δ 2.83-3.07 (m, 2H), 3.22-3.38 (m, 1H), 3.77 (s, 3H), 5.61 (d, J =7.5Hz, 1H), 7.27-7.41 (m, 4H)
(3)トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸エチルの合成
参考例1(2)に示した方法においてエタノールと反応させ、表題化合物トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸エチルを得た。
1HNMR (200MHz, CDCl3) δ(ppm): 1.28 (t, J=7.0 Hz, 3 H), 2.77-3.11 (m, 2 H), 3.16-3.36 (m, 1 H), 4.23 (q, J=7.0 Hz, 2 H), 5.61 (d, J=7.5 Hz, 1 H), 7.26-7.44 (m, 4 H)
(2) Synthesis of methyl trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylate Concentrated sulfuric acid was added to a solution of the compound (237 g) obtained in Reference Example 1 (1) in trifluoroacetic acid (971 mL). (31 mL) was added and heated to reflux for 40 minutes. To the reaction solution was added brine and extracted with ethyl acetate. After drying over magnesium sulfate, the solvent was distilled off under reduced pressure to obtain trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid (213 g).
1-Ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (255 g) was added to a chloroform-methanol (1: 1 mixture, 1.3 L) solution of the obtained compound (213 g) and stirred overnight. . Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed twice with saturated aqueous sodium hydrogen carbonate. After drying over magnesium sulfate, the solvent was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography (20% ethyl acetate-hexane) to obtain trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid. Methyl acid (163 g) was obtained as a colorless powder.
1 HNMR (300 MHz, CDCl 3 ) δ 2.83-3.07 (m, 2H), 3.22-3.38 (m, 1H), 3.77 (s, 3H), 5.61 (d, J = 7.5Hz, 1H), 7.27-7.41 (m, 4H)
(3) Synthesis of ethyl trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylate The compound shown in Reference Example 1 (2) was reacted with ethanol to give the title compound trans-2- (4- Chlorophenyl) -5-oxotetrahydrofuran-3-carboxylate was obtained.
1 HNMR (200MHz, CDCl 3 ) δ (ppm): 1.28 (t, J = 7.0 Hz, 3 H), 2.77-3.11 (m, 2 H), 3.16-3.36 (m, 1 H), 4.23 (q, J = 7.0 Hz, 2 H), 5.61 (d, J = 7.5 Hz, 1 H), 7.26-7.44 (m, 4 H)
(4)トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸の合成
参考例1(2)で得られた化合物(163g)の1.4−ジオキサン(960mL)液に濃塩酸(648mL)を加え、1時間還流した。反応液に食塩水を加え、飽和重曹水で抽出した。水層に濃塩酸を加え酸性とし、酢酸エチルで抽出、有機層を飽和食塩水で2回洗浄した。硫酸マグネシウムで乾燥後、減圧下溶媒留去し、トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸(94.0g)を無色粉末として得た。
1HNMR (300 MHz, DMSO-d6) δ 2.93 (dd, J =9.40, 1.8Hz, 2H), 3.40-3.54 (m, 1H), 5.60 (d, J =8.1Hz, 1H), 7.36-7.60 (m, 4H), 13.00 (br. s, 1H)
(4) Synthesis of trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid Concentrated in 1.4-dioxane (960 mL) solution of the compound (163 g) obtained in Reference Example 1 (2). Hydrochloric acid (648 mL) was added and refluxed for 1 hour. Brine was added to the reaction mixture, and the mixture was extracted with saturated aqueous sodium hydrogen carbonate. The aqueous layer was acidified with concentrated hydrochloric acid, extracted with ethyl acetate, and the organic layer was washed twice with saturated brine. After drying over magnesium sulfate, the solvent was distilled off under reduced pressure to obtain trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid (94.0 g) as a colorless powder.
1 HNMR (300 MHz, DMSO-d 6 ) δ 2.93 (dd, J = 9.40, 1.8Hz, 2H), 3.40-3.54 (m, 1H), 5.60 (d, J = 8.1Hz, 1H), 7.36-7.60 (m, 4H), 13.00 (br. s, 1H)
(5)(−)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸の合成
参考例1(4)で得られた化合物(91.0g)の酢酸エチル−メタノール(1:1混合、1.3L)溶液に(R)−1−フェネチルアミンを加えた。生じた結晶を同溶媒より2回再結晶し、(−)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸(R)−1−フェネチルアミン塩(18.0g)を無色粉末として得た。
1HNMR (300 MHz, DMSO-d6) δ 1.44 (d, J =6.8Hz, 3H), 2.66-3.04 (m, 3H), 4.22-4.34 (m, 1H), 5.55 (d, J =7.2Hz, 1H), 7.27-7.51 (m, 9H)
(5) Synthesis of (−)-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid The compound (91.0 g) obtained in Reference Example 1 (4) in ethyl acetate-methanol (1: (R) -1-phenethylamine was added to the 1 mixed, 1.3 L) solution. The resulting crystals were recrystallized twice from the same solvent to give (−)-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid (R) -1-phenethylamine salt (18.0 g) as a colorless powder. Got as.
1 HNMR (300 MHz, DMSO-d 6 ) δ 1.44 (d, J = 6.8Hz, 3H), 2.66-3.04 (m, 3H), 4.22-4.34 (m, 1H), 5.55 (d, J = 7.2Hz , 1H), 7.27-7.51 (m, 9H)
また、この化合物を一部とり、2N塩酸で中和した後に、酢酸エチルにより抽出し、表題化合物(−)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸を得、旋光度を測定した。
[α]D 20 = -81.9 (c 1.00, MeOH)
A part of this compound was taken, neutralized with 2N hydrochloric acid, and extracted with ethyl acetate to obtain the title compound (-)-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxylic acid. The degree was measured.
[Α] D 20 = -81.9 (c 1.00, MeOH)
(参考例2)
(−)−2−(4−シアノフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸の合成
4−シアノベンズアルデヒドを原料として、参考例1に示した方法により、(−)−2−(4−シアノフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸 (R)−1−フェネチルアミン塩を得た。
1HNMR (300 MHz, DMSO-d6) δ 1.47 (d, J =6.7Hz, 3H), 2.67-3.02 (m, 3H), 4.32 (q, J =6.7Hz, 1H), 5.63 (d, J =7.3Hz, 1H), 7.28-7.43 (m, 3H), 7.45-7.52 (m, 2H), 7.58 (d, J =8.2Hz, 2H), 7.86 (d, J =8.2Hz, 2H)
(Reference Example 2)
Synthesis of (−)-2- (4-cyanophenyl) -5-oxotetrahydrofuran-3-carboxylic acid By the method shown in Reference Example 1 using 4-cyanobenzaldehyde as a raw material, (−)-2- (4- Cyanophenyl) -5-oxotetrahydrofuran-3-carboxylic acid (R) -1-phenethylamine salt was obtained.
1 HNMR (300 MHz, DMSO-d 6 ) δ 1.47 (d, J = 6.7Hz, 3H), 2.67-3.02 (m, 3H), 4.32 (q, J = 6.7Hz, 1H), 5.63 (d, J = 7.3Hz, 1H), 7.28-7.43 (m, 3H), 7.45-7.52 (m, 2H), 7.58 (d, J = 8.2Hz, 2H), 7.86 (d, J = 8.2Hz, 2H)
また、この化合物を一部とり、2N塩酸で中和した後に、酢酸エチルにより抽出し、表題化合物(−)−2−(4−シアノフェニル)−5−オキソテトラヒドロフラン−3−カルボン酸を得、旋光度を測定した。
[α]D 20 = -83.3 (c 1.00, MeOH)
A part of this compound was taken and neutralized with 2N hydrochloric acid, followed by extraction with ethyl acetate to obtain the title compound (-)-2- (4-cyanophenyl) -5-oxotetrahydrofuran-3-carboxylic acid. The optical rotation was measured.
[Α] D 20 = -83.3 (c 1.00, MeOH)
(参考例3)
(−)−2−[4−(トリフルオロメチル)フェニル]−5−オキソテトラヒドロフラン−3−カルボン酸の合成
4−(トリフルオロメチル)ベンズアルデヒドを原料として、参考例1に示した方法により、(−)−2−[4−(トリフルオロメチル)フェニル]−5−オキソテトラヒドロフラン−3−カルボン酸 (R)−1−(ナフタレン−1−イル)エタンアミン塩を得た。
1HNMR (300 MHz, DMSO-d6) δ1.57 (d, J =6.7Hz, 3H), 2.66-2.91 (m, 2H), 2.94-3.07 (m, 1H), 5.19 (q, J =6.7Hz, 1H), 5.64 (d, J =7.2Hz, 1H), 7.50 - 7.65 (m, 5H), 7.68-7.80 (m, 3H), 7.91 (d, J =8.2Hz, 1H), 7.94-8.01 (m, 1H), 8.11-8.20 (m, 1H)
(Reference Example 3)
Synthesis of (−)-2- [4- (trifluoromethyl) phenyl] -5-oxotetrahydrofuran-3-carboxylic acid Using 4- (trifluoromethyl) benzaldehyde as a raw material, the method shown in Reference Example 1 -)-2- [4- (Trifluoromethyl) phenyl] -5-oxotetrahydrofuran-3-carboxylic acid (R) -1- (naphthalen-1-yl) ethanamine salt was obtained.
1 HNMR (300 MHz, DMSO-d 6 ) δ1.57 (d, J = 6.7Hz, 3H), 2.66-2.91 (m, 2H), 2.94-3.07 (m, 1H), 5.19 (q, J = 6.7 Hz, 1H), 5.64 (d, J = 7.2Hz, 1H), 7.50-7.65 (m, 5H), 7.68-7.80 (m, 3H), 7.91 (d, J = 8.2Hz, 1H), 7.94-8.01 (m, 1H), 8.11-8.20 (m, 1H)
また、この化合物を一部とり、2N塩酸で中和した後に、酢酸エチルにより抽出し、表題化合物(−)−2−[4−(トリフルオロメチル)フェニル]−5−オキソテトラヒドロフラン−3−カルボン酸を得、旋光度を測定した。
[α]D 20 = -54.6 (c 1.00, MeOH)
A part of this compound was taken, neutralized with 2N hydrochloric acid, extracted with ethyl acetate, and the title compound (-)-2- [4- (trifluoromethyl) phenyl] -5-oxotetrahydrofuran-3-carboxylic acid was extracted. The acid was obtained and the optical rotation was measured.
[Α] D 20 = -54.6 (c 1.00, MeOH)
(参考例4)
1−(2,3,5−トリフルオロベンジル)ピペリジン−4−アミン塩酸塩の合成
4−(t−ブトキシカルボニル)−アミノピペリジン(30.0g)のジメチルホルムアミド(300mL)溶液に2,3,5−トリフルオロベンズアルデヒド(21mL)の酢酸(25mL)溶液を加え、室温下2時間攪拌した。次いで、反応液にナトリウムトリアセトキシボロヒドリド(92.0g)を加え、室温下一晩攪拌した。反応液に水を加え、酢酸エチルで2回抽出し、有機層を飽和重曹水で3回洗浄、無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、残留物をシリカゲルカラムクロマトグラフィー(33%酢酸エチル−ヘキサン)で精製し、[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル)カルバミン酸t−ブチル(44.0g)を無色油状物として得た。
ここで得られた化合物(44.0g)のメタノール(360mL)溶液に4N塩化水素−1,4−ジオキサン溶液(112mL)を加え、3時間加熱還流した。反応液に酢酸エチルを加え、析出した結晶を減圧乾燥し表題化合物1−(2,3,5−トリフルオロベンジル)ピペリジン−4−アミン2塩酸塩水和物(30.0g)を無色粉末として得た。
1HNMR (300 MHz, DMSO-d6) δ 1.85-2.32 (m, 4H), 2.89-3.60 (m, 4H), 4.17-4.46 (m, 2H), 7.57-7.82 (m, 2H), 8.30-8.62 (m, 2H)
(Reference Example 4)
Synthesis of 1- (2,3,5-trifluorobenzyl) piperidin-4-amine hydrochloride To a solution of 4- (t-butoxycarbonyl) -aminopiperidine (30.0 g) in dimethylformamide (300 mL) A solution of 5-trifluorobenzaldehyde (21 mL) in acetic acid (25 mL) was added, and the mixture was stirred at room temperature for 2 hours. Next, sodium triacetoxyborohydride (92.0 g) was added to the reaction solution, and the mixture was stirred overnight at room temperature. Water was added to the reaction mixture, and the mixture was extracted twice with ethyl acetate. The organic layer was washed three times with saturated aqueous sodium bicarbonate, dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (33% Purification with ethyl acetate-hexane) gave t-butyl [1- (2,3,5-trifluorobenzyl) piperidin-4-yl) carbamate (44.0 g) as a colorless oil.
A 4N hydrogen chloride-1,4-dioxane solution (112 mL) was added to a methanol (360 mL) solution of the compound (44.0 g) obtained here, and the mixture was heated to reflux for 3 hours. Ethyl acetate was added to the reaction mixture, and the precipitated crystals were dried under reduced pressure to give the title compound 1- (2,3,5-trifluorobenzyl) piperidin-4-amine dihydrochloride hydrate (30.0 g) as a colorless powder. It was.
1 HNMR (300 MHz, DMSO-d 6 ) δ 1.85-2.32 (m, 4H), 2.89-3.60 (m, 4H), 4.17-4.46 (m, 2H), 7.57-7.82 (m, 2H), 8.30- 8.62 (m, 2H)
(実施例1)トランス−4,5−ジ(4−メトキシフェニル)ジヒドロフラン−2(3H)−オン及び(実施例2)シス−4,5−ジ(4−メトキシフェニル)ジヒドロフラン−2(3H)−オンの合成
4,4’−ジメトキシベンゾイン(10.0g)のクロロホルム50mL溶液にジヒドロピラン(4.4mL)、ピリジニウムp−トシル酸(0.46g)を加え、室温下一晩攪拌した。反応液に水を加え有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し1,2−ジ(4−メトキシフェニル)−2−(テトラヒドロ−2H−ピラン−2−イルオキシ)エタノン(16.3g)を淡黄色油状物質として得た。
次いで、60%油性水素化ナトリウムをヘキサンで洗浄後、テトラヒドロフラン(50mL)を加え、氷冷下ジエチルホスホノ酢酸 エチル(14.6mL)を加え、室温下30分間攪拌した。同温度下、前反応で得られた化合物(13.1g)のテトラヒドロフラン(15mL)を加え、8時間加熱還流した。反応液に水を加え、酢酸エチルで抽出した。抽出した有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(10%酢酸エチル−ヘキサン)で精製し、エチル 3,4−ジ(4−メトキシフェニル)−4−(テトラヒドロ−2H−ピラン−2−イルオキシ) −2−ブテネート(15.1g)を淡橙色油状物質として得た。
ここで得られた化合物(5.00g)のテトラヒドロフラン(25mL)と水(2.5mL)溶液にp−トシル酸(1.00g)を加え、9時間過熱還流した。反応液に水を加え、酢酸エチルで抽出した。抽出した有機層を飽和重曹水、飽和食塩水で順次洗浄し、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(25%酢酸エチル−ヘキサン)で精製し、エチル 3,4−ジ(4−メトキシフェニル)−4−ヒドロキシ−2−ブテネート(2.89g)を無色油状物質として得た。
ここで得られた化合物(2.89g)のエタノール(29mL)溶液に10%Pd−C(0.29g)を加え、水素気流下、室温で一晩攪拌した。反応液をセライトろ過し、溶媒を減圧留去し3,4−ジ(4−メトキシフェニル)−4−ヒドロキシ酪酸エチル(2.80g)を無色油状物質として得た。
ここで得られた化合物(1.00g)の酢酸エチル(10mL)溶液に4M塩化水素−酢酸エチル溶液(1.0mL)を加え、室温下3日間攪拌した。反応液に水を加え、酢酸エチルで抽出した。抽出した有機層を飽和食塩水で洗浄し、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィーで精製し、18%酢酸エチル−ヘキサン溶出部より実施例1のトランス−4,5−ジ(4−メトキシフェニル)ジヒドロフラン−2(3H)−オン(0.75g)を無色油状物質として得、20%酢酸エチル−ヘキサン溶出部より実施例2のシス−4,5−ジ(4−メトキシフェニル)ジヒドロフラン−2(3H)−オン(0.43g)を無色油状物質として得た。
Example 1 trans-4,5-di (4-methoxyphenyl) dihydrofuran-2 (3H) -one and (Example 2) cis-4,5-di (4-methoxyphenyl) dihydrofuran-2 Synthesis of (3H) -one To a solution of 4,4′-dimethoxybenzoin (10.0 g) in chloroform (50 mL) was added dihydropyran (4.4 mL) and pyridinium p-tosylic acid (0.46 g), and the mixture was stirred overnight at room temperature. did. Water was added to the reaction mixture, and the organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, the solvent was evaporated under reduced pressure, and 1,2-di (4-methoxyphenyl) -2- (tetrahydro-2H-pyran- 2-yloxy) ethanone (16.3 g) was obtained as a pale yellow oil.
Next, 60% oily sodium hydride was washed with hexane, tetrahydrofuran (50 mL) was added, ethyl diethylphosphonoacetate (14.6 mL) was added under ice cooling, and the mixture was stirred at room temperature for 30 min. At the same temperature, tetrahydrofuran (15 mL) of the compound (13.1 g) obtained in the previous reaction was added, and the mixture was heated to reflux for 8 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (10% ethyl acetate-hexane), and ethyl 3,4-di (4-methoxyphenyl) -4- (tetrahydro-2H-pyran-2-yloxy) -2 -Butenate (15.1 g) was obtained as a pale orange oil.
To a solution of the compound (5.00 g) obtained here in tetrahydrofuran (25 mL) and water (2.5 mL) was added p-tosylic acid (1.00 g), and the mixture was heated to reflux for 9 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed successively with saturated aqueous sodium hydrogen carbonate and saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (25% ethyl acetate-hexane) to give ethyl 3,4-di (4-methoxyphenyl) -4-hydroxy-2-butenate (2.89 g) as a colorless oil. Obtained as material.
10% Pd-C (0.29 g) was added to an ethanol (29 mL) solution of the compound (2.89 g) obtained here, and the mixture was stirred overnight at room temperature under a hydrogen stream. The reaction solution was filtered through Celite, and the solvent was distilled off under reduced pressure to obtain ethyl 3,4-di (4-methoxyphenyl) -4-hydroxybutyrate (2.80 g) as a colorless oily substance.
To a solution of the compound obtained here (1.00 g) in ethyl acetate (10 mL) was added 4M hydrogen chloride-ethyl acetate solution (1.0 mL), and the mixture was stirred at room temperature for 3 days. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography, and trans-4,5-di (4-methoxyphenyl) dihydrofuran-2 (3H) -one (Example 1) was eluted from the eluate of 18% ethyl acetate-hexane ( 0.75 g) as a colorless oily substance, and cis-4,5-di (4-methoxyphenyl) dihydrofuran-2 (3H) -one (0.43 g) of Example 2 from an eluate of 20% ethyl acetate-hexane ) Was obtained as a colorless oil.
(実施例3)トランス−4,5−ジ(4−メチルフェニル)ジヒドロフラン−2(3H)−オン及び(実施例4)シス−4,5−ジ(4−メチルフェニル)ジヒドロフラン−2(3H)−オンの合成
4,4’−ジメチルベンゾインを原料として、実施例1,2に示した方法により、実施例3のトランス−4,5−ジ(4−メチルフェニル)ジヒドロフラン−2(3H)−オン及び実施例4のシス−4,5−ジ(4−メチルフェニル)ジヒドロフラン−2(3H)−オンを得た。
(Example 3) trans-4,5-di (4-methylphenyl) dihydrofuran-2 (3H) -one and (Example 4) cis-4,5-di (4-methylphenyl) dihydrofuran-2 Synthesis of (3H) -one According to the method shown in Examples 1 and 2, starting from 4,4′-dimethylbenzoin, trans-4,5-di (4-methylphenyl) dihydrofuran-2 of Example 3 was used. (3H) -one and cis-4,5-di (4-methylphenyl) dihydrofuran-2 (3H) -one of Example 4 were obtained.
(実施例5)
シス−4,5−ジ(4−クロロフェニル)ジヒドロフラン−2(3H)−オンの合成
4,4’−ジクロロベンゾインを原料として、実施例1,2に示した方法により、表題化合物シス−4,5−ジ(4−クロロフェニル)ジヒドロフラン−2(3H)−オンを得た。
(Example 5)
Synthesis of cis-4,5-di (4-chlorophenyl) dihydrofuran-2 (3H) -one According to the method shown in Examples 1 and 2, starting from 4,4′-dichlorobenzoin, the title compound cis-4 , 5-Di (4-chlorophenyl) dihydrofuran-2 (3H) -one was obtained.
(実施例6)
トランス−4−(4−クロロフェニル)−5−(4−メチルフェニル)ジヒドロフラン−2(3H)−オンの合成
(1)2−(4−クロロフェニル)−1−(4−メチルフェニル)エタノンの合成
4−クロロフェニル酢酸(10.0g)のN,N−ジメチルホルムアミド(100mL)溶液に、N,O―ジメチルヒドロキシルアミン塩酸塩(6.90g)、トリエチルアミン(11mL)、1−ヒドロキシベンゾトリアゾール(10.3g)、1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(14.6g)を加え、室温下24時間攪拌した。反応液に水を加え、酢酸エチルで抽出した。有機層を飽和重曹水、飽和食塩水で順次洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し2−(4−クロロフェニル)−N−メトキシ−N−メチルアセトアミド(12.3g)を無色粉末として得た。
ここで得られた化合物(2.00g)のテトラヒドロフラン(30mL)溶液に氷冷下、1M p−トリルマグネシウムブロマイド−テトラヒドロフラン溶液(28mL)を滴下し、同温度下5時間攪拌した。反応液に氷冷下、飽和塩化アンモニウム水溶液を加え、酢酸エチルで抽出した。抽出した有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(10%酢酸エチル−ヘキサン)で精製し、表題化合物2−(4−クロロフェニル)−1−(4−メチルフェニル)エタノン(1.30g)を無色粉末として得た。
1H NMR (200 MHz,CDCl3) δ 2.41 (s, 3 H), 4.23 (s, 2 H), 7.12 - 7.36 (m, 6 H), 7.83 - 7.96 (m, 2 H)
(Example 6)
Synthesis of trans-4- (4-chlorophenyl) -5- (4-methylphenyl) dihydrofuran-2 (3H) -one (1) of 2- (4-chlorophenyl) -1- (4-methylphenyl) ethanone Synthesis To a solution of 4-chlorophenylacetic acid (10.0 g) in N, N-dimethylformamide (100 mL), N, O-dimethylhydroxylamine hydrochloride (6.90 g), triethylamine (11 mL), 1-hydroxybenzotriazole (10 3 g) and 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (14.6 g) were added, and the mixture was stirred at room temperature for 24 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with saturated aqueous sodium hydrogen carbonate and saturated brine, dried over anhydrous magnesium sulfate, the solvent was evaporated under reduced pressure, and 2- (4-chlorophenyl) -N-methoxy-N-methylacetamide (12.3 g) was colorless. Obtained as a powder.
A 1M p-tolylmagnesium bromide-tetrahydrofuran solution (28 mL) was added dropwise to a tetrahydrofuran (30 mL) solution of the compound (2.00 g) obtained here under ice cooling, and the mixture was stirred at the same temperature for 5 hours. A saturated aqueous ammonium chloride solution was added to the reaction mixture under ice cooling, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (10% ethyl acetate-hexane) to give the title compound 2- (4-chlorophenyl) -1- (4-methylphenyl) ethanone (1.30 g) as a colorless powder. Obtained.
1 H NMR (200 MHz, CDCl 3 ) δ 2.41 (s, 3 H), 4.23 (s, 2 H), 7.12-7.36 (m, 6 H), 7.83-7.96 (m, 2 H)
(2)3−(4−クロロフェニル)−4−ヒドロキシ−4−(4−メチルフェニル)酪酸の合成
実施例6(1)で得られた化合物(1.30g)のジメチルスルホキシド(20mL)溶液に窒素置換下、60%油性水素化ナトリウム(0.32g)を加え、室温下30分間攪拌した後にブロモ酢酸エチル(0.7mL)を加え、室温下24時間攪拌した。反応液に氷冷下、1M塩酸、水を加え、酢酸エチルで抽出した。抽出した有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、乾燥剤を濾別、溶媒を減圧留去する事で3−(4−クロロフェニル)−4−(4−メチルフェニル)−4−オキソブタン酸エチル(1.90g)を橙色油状物質として得た。
ここで得られた化合物(1.75g)のエタノール(20mL)溶液に氷冷下、水素化ホウ素ナトリウム(0.40g)を加え、同温度下2.5時間攪拌した。反応液に氷冷下、飽和塩化アンモニウム水溶液を加え、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(20%酢酸エチル−ヘキサン)で精製し、3−(4−クロロフェニル)−4−ヒドロキシ−4−(4−メチルフェニル)酪酸エチル(1.70g)を淡黄色油状物質として得た。
ここで得られた化合物(1.70g)のエタノール(20mL)、水(5mL)混合溶液に水酸化ナトリウム(0.32g)を加え、室温下24時間攪拌した。反応液を減圧下溶媒留去した後、水、酢酸エチルを加え、水層のみを分離した。得られた水層を1M塩酸でpH=1に調整した後、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し表題化合物3−(4−クロロフェニル)−4−ヒドロキシ−4−(4−メチルフェニル)ブタン酸(1.10g)を無色粉末として得た。
1H NMR (200 MHz, DMSO-d6) δ 2.25 (s, 3 H), 3.16 - 3.38 (m, 2 H), 4.67 - 4.78 (m, 1 H), 5.24 - 5.37 (m, 1 H), 6.93 - 7.30 (m, 8 H)
(2) Synthesis of 3- (4-chlorophenyl) -4-hydroxy-4- (4-methylphenyl) butyric acid To a solution of the compound (1.30 g) obtained in Example 6 (1) in dimethyl sulfoxide (20 mL) Under nitrogen substitution, 60% oily sodium hydride (0.32 g) was added, and the mixture was stirred at room temperature for 30 minutes, ethyl bromoacetate (0.7 mL) was added, and the mixture was stirred at room temperature for 24 hours. Under ice-cooling, 1M hydrochloric acid and water were added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, the desiccant was filtered off, and the solvent was evaporated under reduced pressure to give 3- (4-chlorophenyl) -4- (4-methylphenyl) -4. -Ethyl oxobutanoate (1.90 g) was obtained as an orange oil.
Sodium borohydride (0.40 g) was added to an ethanol (20 mL) solution of the compound (1.75 g) obtained here under ice cooling, and the mixture was stirred at the same temperature for 2.5 hours. A saturated aqueous ammonium chloride solution was added to the reaction mixture under ice cooling, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (20% ethyl acetate-hexane) to give ethyl 3- (4-chlorophenyl) -4-hydroxy-4- (4-methylphenyl) butyrate (1.70 g). Obtained as a pale yellow oil.
Sodium hydroxide (0.32 g) was added to a mixed solution of the compound (1.70 g) obtained here in ethanol (20 mL) and water (5 mL), and the mixture was stirred at room temperature for 24 hours. After the solvent was distilled off under reduced pressure, water and ethyl acetate were added, and only the aqueous layer was separated. The obtained aqueous layer was adjusted to pH = 1 with 1M hydrochloric acid, and extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure to give the title compound 3- (4-chlorophenyl) -4-hydroxy-4- (4-methylphenyl) butanoic acid (1.10 g). ) Was obtained as a colorless powder.
1 H NMR (200 MHz, DMSO-d 6 ) δ 2.25 (s, 3 H), 3.16-3.38 (m, 2 H), 4.67-4.78 (m, 1 H), 5.24-5.37 (m, 1 H) 6.93-7.30 (m, 8 H)
(3)トランス−4−(4−クロロフェニル)−5−(4−メチルフェニル)ジヒドロフラン−2(3H)−オンの合成
実施例6(2)で得られた化合物(1.10g)の酢酸エチル(10mL)溶液に4M塩化水素−酢酸エチル溶液(10mL)を加え、室温下24時間攪拌した。反応液を減圧下溶媒留去した後、水を加え、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去しシス−4−(4−クロロフェニル)−5−(4−メチルフェニル)ジヒドロフラン−2(3H)−オン(1.00g)を無色油状物質として得た。
ここで得られた化合物(1.00g)の酢酸(10mL)、水(1mL)混合溶液を24時間加熱還流した。室温下放冷後、反応液に水を加え、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、乾燥剤を濾別、溶媒を減圧留去した。得られた残留物をカラムクロマトグラフィー(10%酢酸エチル−ヘキサン)で精製し、表題化合物トランス−4−(4−クロロフェニル)−5−(4−メチルフェニル)ジヒドロフラン−2(3H)−オン(0.45g)を無色粉末として得た。
(3) Synthesis of trans-4- (4-chlorophenyl) -5- (4-methylphenyl) dihydrofuran-2 (3H) -one Acetic acid of the compound (1.10 g) obtained in Example 6 (2) A 4M hydrogen chloride-ethyl acetate solution (10 mL) was added to the ethyl (10 mL) solution, and the mixture was stirred at room temperature for 24 hours. The reaction mixture was evaporated under reduced pressure, water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure to give cis-4- (4-chlorophenyl) -5- (4-methylphenyl) dihydrofuran-2 (3H) -one ( 1.00 g) as a colorless oil.
A mixed solution of the compound (1.00 g) obtained here in acetic acid (10 mL) and water (1 mL) was heated to reflux for 24 hours. After allowing to cool at room temperature, water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, the desiccant was filtered off, and the solvent was evaporated under reduced pressure. The obtained residue was purified by column chromatography (10% ethyl acetate-hexane) to give the title compound trans-4- (4-chlorophenyl) -5- (4-methylphenyl) dihydrofuran-2 (3H) -one. (0.45 g) was obtained as a colorless powder.
(実施例7)
トランス−4−(4−クロロフェニル)−5−p−トリル−1,3−ジオキソラン−2−オンの合成
1−(4−クロロフェニル)−5−p−トリルエタン−1,2−ジオン(10.0g)のメタノール(100mL)溶液に水素化ホウ素ナトリウム(1.46g)を加え、氷冷下2時間攪拌した。反応液に飽和塩化アンモニウム水溶液を加え、酢酸エチルで抽出し、有機層を水、飽和食塩水で順次洗浄した。無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジオールのシス体とトランス体の混合物としての無色粉末(10.4g)を得た。
ここで得られた化合物(10.4g)のクロロホルム(80mL)溶液に、氷冷下トリホスゲン(4.60g)のクロロホルム(20mL)溶液を滴下し、同温度下1.5時間攪拌した。反応液に水を加え、クロロホルムで抽出し有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(10%酢酸エチル−ヘキサン)で精製し、表題化合物トランス−4−(4−クロロフェニル)−5−p−トリル−1,3−ジオキソラン−2−オン(2.25g)を無色油状物として得た。
(Example 7)
Synthesis of trans-4- (4-chlorophenyl) -5-p-tolyl-1,3-dioxolan-2-one 1- (4-chlorophenyl) -5-p-tolylethane-1,2-dione (10.0 g ) In methanol (100 mL) was added sodium borohydride (1.46 g), and the mixture was stirred for 2 hours under ice cooling. A saturated aqueous ammonium chloride solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine. After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure, and colorless powder (10.4 g) as a mixture of cis- and trans-isomers of 1- (4-chlorophenyl) -2-p-tolylethane-1,2-diol Got.
To a chloroform (80 mL) solution of the compound (10.4 g) obtained here was added dropwise a solution of triphosgene (4.60 g) in chloroform (20 mL) under ice cooling, and the mixture was stirred at the same temperature for 1.5 hours. Water was added to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (10% ethyl acetate-hexane) to give the title compound trans-4- (4-chlorophenyl) -5-p-tolyl-1,3-dioxolan-2-one ( 2.25 g) was obtained as a colorless oil.
(実施例8)
トランス−4−(4−クロロフェニル)−5−p−トリルイミダゾリジン−2−オンの合成
実施例7で得られた化合物(2.77g)のメタノール(14mL)、水(1.5mL)溶液に炭酸カリウム(1.46g)を加え、室温下1時間攪拌した。反応液に水を加え、析出した結晶を濾取後、水で洗浄しトランス−1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジオール(2.37g)を無色粉末として得た。
ここで得られた化合物(2.37g)のクロロホルム(24mL)溶液に、トリエチルアミン(2.8mL)を加え、次いで氷冷下メタンスルフォニルクロライド(1.5mL)を滴下し、同温度下1時間攪拌した。反応液に水を加え、クロロホルムで抽出し有機層を飽和食塩水で洗浄した。無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、トランス−1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジイル ジメタンスルホネート(3.87g)を無色アモルファスとして得た。
(Example 8)
Synthesis of trans-4- (4-chlorophenyl) -5-p-tolyrimidazolidin-2-one In a solution of the compound obtained in Example 7 (2.77 g) in methanol (14 mL) and water (1.5 mL) Potassium carbonate (1.46 g) was added and stirred at room temperature for 1 hour. Water was added to the reaction solution, and the precipitated crystals were collected by filtration and washed with water to obtain trans-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diol (2.37 g) as a colorless powder. It was.
Triethylamine (2.8 mL) was added to a chloroform (24 mL) solution of the obtained compound (2.37 g), and then methanesulfonyl chloride (1.5 mL) was added dropwise under ice cooling, followed by stirring at the same temperature for 1 hour. did. Water was added to the reaction solution, extracted with chloroform, and the organic layer was washed with saturated brine. After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure to obtain trans-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diyl dimethanesulfonate (3.87 g) as a colorless amorphous.
ここで得られた化合物(3.87g)のジメチルホルムアミド(20mL)溶液に、アジ化ナトリウム(1.41g)を加え、120℃油浴上で2時間攪拌した。反応液に水を加え、酢酸エチルで抽出し有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(7%酢酸エチル−ヘキサン)で精製し、トランス−1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジアジド(1.50g)を無色油状物として得た。
ここで得られた化合物(1.50g)のエタノール(15mL)溶液に、10%Pd-C(0.15g)を加え、水素気流下室温で5時間攪拌後、セライト濾過し溶媒留去した。残留物に10%塩酸を加え酢酸エチルで洗浄後、水層に水酸化カリウムを加え中和し酢酸エチルで抽出した。有機層を水、飽和食塩水で順次洗浄後、無水硫酸マグネシウムで乾燥した。溶媒を減圧留去し、トランス−1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジアミン(0.88g)を黄色粉末として得た。
ここで得られた化合物(0.87g)のクロロホルム(10mL)溶液に、トリエチルアミン(1.2ml)を加え、次いで氷冷下トリホスゲン(0.40g)を加え、同温度下2時間攪拌した。反応液に水を加え、酢酸エチルで抽出し有機層を水、飽和食塩水で順次洗浄し、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をクロロホルム−へキサンより再結晶し、表題化合物トランス−4−(4−クロロフェニル)−5−p−トリルイミダゾリジン−2−オン(0.27g)を無色粉末として得た。
Sodium azide (1.41 g) was added to a solution of the compound obtained here (3.87 g) in dimethylformamide (20 mL), and the mixture was stirred on a 120 ° C. oil bath for 2 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (7% ethyl acetate-hexane), and trans-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diazide (1.50 g) was colorless. Obtained as an oil.
To a solution of the compound obtained here (1.50 g) in ethanol (15 mL) was added 10% Pd—C (0.15 g), and the mixture was stirred at room temperature for 5 hours under a hydrogen stream, filtered through Celite, and the solvent was distilled off. To the residue was added 10% hydrochloric acid and washed with ethyl acetate. The aqueous layer was neutralized with potassium hydroxide and extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to obtain trans-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diamine (0.88 g) as a yellow powder.
Triethylamine (1.2 ml) was added to a solution of the compound obtained here (0.87 g) in chloroform (10 mL), then triphosgene (0.40 g) was added under ice cooling, and the mixture was stirred at the same temperature for 2 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was recrystallized from chloroform-hexane to give the title compound trans-4- (4-chlorophenyl) -5-p-tolylimidazolidin-2-one (0.27 g) as a colorless powder.
(実施例9)
シス−4−(4−クロロフェニル)−5−p−トリルイミダゾリジン−2−オンの合成
1−(4−クロロフェニル)−2−p−トリルエタン−1,2−ジオン(10.0g)のメタノール(100mL)溶液に水素化ホウ素ナトリウム(1.46g)を加え、氷冷下2時間攪拌した。反応液に飽和塩化アンモニウム水溶液を加え、酢酸エチルで抽出し、有機層を水、飽和食塩水で順次洗浄した。無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジオールのシス体とトランス体の混合物(10.4g)としての無色粉末を得た。
ここで得られた化合物(1.54g)のクロロホルム(16mL)溶液に、トリエチルアミン(2.0mL)を加え、次いで氷冷下メタンスルフォニルクロライド(1.0mL)を滴下し、同温度下30分間攪拌した。反応液に水を加え、析出した結晶を濾取後、水で洗浄しシス−1-(4-クロロフェニル)−2−p−トリルエタン−1,2−−ジイル ジメタンスルホネート(2.12g)を無色粉末として得た。
Example 9
Synthesis of cis-4- (4-chlorophenyl) -5-p-tolyrimidazolidin-2-one 1- (4-chlorophenyl) -2-p-tolylethane-1,2-dione (10.0 g) in methanol ( 100 mL) solution was added sodium borohydride (1.46 g) and stirred for 2 hours under ice cooling. A saturated aqueous ammonium chloride solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine. After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure, and colorless powder as a mixture (10.4 g) of 1- (4-chlorophenyl) -2-p-tolylethane-1,2-diol cis isomer and trans isomer Got.
Triethylamine (2.0 mL) was added to a chloroform (16 mL) solution of the compound obtained here (1.54 g), and then methanesulfonyl chloride (1.0 mL) was added dropwise under ice cooling, followed by stirring at the same temperature for 30 minutes. did. Water was added to the reaction solution, and the precipitated crystals were collected by filtration and washed with water to give cis-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diyl dimethanesulfonate (2.12 g). Obtained as a colorless powder.
同様にして合成したシス−1−(4−クロロフェニル)−2−p−トリルエタン−1,2−ジイル ジメタンスルホネート(2.25g)のジメチルホルムアミド(20mL)溶液に、アジ化ナトリウム(0.84g)を加え、120℃油浴上で2時間攪拌した。反応液に水を加え、酢酸エチルで抽出し有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(ヘキサン)で精製し、シス−1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジアジド(0.75g)を淡黄色粉末として得た。
ここで得られた化合物(0.75g)のエタノール(15mL)溶液に、10%Pd-C(0.08g)を加え、水素気流下室温で一晩攪拌後、セライト濾過、溶媒留去し、シス−1-(4-クロロフェニル)−2−p−トリルエタン−1,2−ジアミン(0.60g)を緑色粉末として得た。
ここで得られた化合物(0.60g)のクロロホルム(10mL)溶液に、トリエチルアミン(0.8ml)を加え、次いで氷冷下トリホスゲン(0.27g)を加え、同温度下2時間攪拌した。反応液に水を加え、酢酸エチルで抽出し有機層を水、飽和食塩水で順次洗浄し、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をクロロホルムで洗浄し、表題化合物シス−4−(4−クロロフェニル)−5−p−トリルイミダゾリジン−2−オン(0.22g)を無色粉末として得た。
To a solution of cis-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diyl dimethanesulfonate (2.25 g) synthesized in the same manner in dimethylformamide (20 mL), sodium azide (0.84 g ) And stirred on a 120 ° C. oil bath for 2 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane) to obtain cis-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diazide (0.75 g) as a pale yellow powder. .
10% Pd—C (0.08 g) was added to an ethanol (15 mL) solution of the compound (0.75 g) obtained here, and the mixture was stirred overnight at room temperature under a hydrogen stream, then filtered through Celite, and the solvent was distilled off. Cis-1- (4-chlorophenyl) -2-p-tolylethane-1,2-diamine (0.60 g) was obtained as a green powder.
Triethylamine (0.8 ml) was added to a chloroform (10 mL) solution of the compound obtained here (0.60 g), and then triphosgene (0.27 g) was added under ice cooling, followed by stirring at the same temperature for 2 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was washed with chloroform to give the title compound cis-4- (4-chlorophenyl) -5-p-tolyrimidazolidin-2-one (0.22 g) as a colorless powder.
(実施例10)
シス−4,5−ジ(p−トリル)イミダゾリジン−2−オンの合成
1−(4−クロロフェニル)−2−p−トリルエタン−1,2−ジオンを原料として、実施例9に示した方法により、表題化合物シス−4,5−ジ(p−トリル)イミダゾリジン−2−オンを得た。
(Example 10)
Synthesis of cis-4,5-di (p-tolyl) imidazolidin-2-one The method shown in Example 9 starting from 1- (4-chlorophenyl) -2-p-tolylethane-1,2-dione Gave the title compound cis-4,5-di (p-tolyl) imidazolidin-2-one.
(実施例11)
4,5−ジ(p−トリル)オキサゾリジン−2−オンの合成
2−ヒドロキシ−1,2−ジ(p−トリル)エタノン(2.00g)のエタノール(20mL)溶液に、ヒドロキシアミン塩酸塩(0.70g)、酢酸ナトリウム(0.82g)を加え、1時間加熱還流した。反応液に水を加え、酢酸エチルで抽出し、有機層を水、飽和食塩水で順次洗浄した。無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、2−ヒドロキシ−1,2−ジ(p−トリル)エタノン(2.49g)を無色油状物として得た。
ここで得られた化合物(2.34g)のテトラヒドロフラン(25mL)溶液に、氷冷下水素化リチウムアルミニウム(0.70g)を加え、100℃油浴上で3時間攪拌した。反応液に、飽和塩化アンモニウム水溶液を加えセライト濾過し、10%塩酸を加え中和し酢酸エチルで洗浄した。水層に重曹を加え中和し、酢酸エチルで抽出後、飽和食塩水で洗浄した。無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、2−アミノ−1,2−ジ(p−トリル)エタノール(0.59g)を淡褐色粉末として得た。
ここで得られた化合物(0.58g)のクロロホルム(10mL)溶液に、トリエチルアミン(0.4ml)を加え、次いで氷冷下トリホスゲン(0.28g)を加え、同温度下1時間攪拌した。反応液に水を加え、酢酸エチルで抽出し有機層を水、10%塩酸、飽和重曹水、飽和食塩水で順次洗浄し、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(35%酢酸エチル−ヘキサン)で精製し、表題化合物4,5−ジ(p−トリル)オキサゾリジン−2−オン(0.35g)を無色粉末として得た。
(Example 11)
Synthesis of 4,5-di (p-tolyl) oxazolidine-2-one 2-Hydroxy-1,2-di (p-tolyl) ethanone (2.00 g) in ethanol (20 mL) was added to hydroxyamine hydrochloride ( 0.70 g) and sodium acetate (0.82 g) were added, and the mixture was heated to reflux for 1 hour. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine. After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure to obtain 2-hydroxy-1,2-di (p-tolyl) ethanone (2.49 g) as a colorless oil.
Lithium aluminum hydride (0.70 g) was added to a tetrahydrofuran (25 mL) solution of the compound (2.34 g) obtained here under ice-cooling, and the mixture was stirred on an oil bath at 100 ° C. for 3 hours. Saturated aqueous ammonium chloride solution was added to the reaction solution, and the mixture was filtered through celite, neutralized with 10% hydrochloric acid, and washed with ethyl acetate. Sodium bicarbonate was added to the aqueous layer for neutralization, followed by extraction with ethyl acetate and washing with saturated brine. After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure to obtain 2-amino-1,2-di (p-tolyl) ethanol (0.59 g) as a light brown powder.
Triethylamine (0.4 ml) was added to a chloroform (10 mL) solution of the compound (0.58 g) obtained here, and then triphosgene (0.28 g) was added under ice cooling, followed by stirring at the same temperature for 1 hour. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water, 10% hydrochloric acid, saturated aqueous sodium hydrogen carbonate and saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (35% ethyl acetate-hexane) to give the title compound 4,5-di (p-tolyl) oxazolidine-2-one (0.35 g) as a colorless powder. .
(実施例12)
5−クロロフェニル−1−フェニル−1,2,4−トリアゾリジン−3−オンの合成
2−フェニルヒドラジンカルボキサミド(1.00g)のエタノール(20mL)溶液に、p−クロロベンズアルデヒド(1.12g)、p-トルエンスルホン酸(0.13g)を加え、室温下一晩攪拌した。反応後、溶媒留去し酢酸エチルを加え、飽和重曹水、水、飽和食塩水で順次洗浄した。無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、得られた残留物をシリカゲルカラムクロマトグラフィー(40%酢酸エチル−ヘキサン)で精製し、表題化合物5−クロロフェニル−1−フェニル−1,2,4−トリアゾリジン−3−オン(0.27g)を無色粉末として得た。
(Example 12)
Synthesis of 5-chlorophenyl-1-phenyl-1,2,4-triazolidin-3-one In a solution of 2-phenylhydrazinecarboxamide (1.00 g) in ethanol (20 mL), p-chlorobenzaldehyde (1.12 g), p -Toluenesulfonic acid (0.13 g) was added, and the mixture was stirred overnight at room temperature. After the reaction, the solvent was distilled off, ethyl acetate was added, and the mixture was washed successively with saturated aqueous sodium hydrogen carbonate, water and saturated brine. After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure, and the resulting residue was purified by silica gel column chromatography (40% ethyl acetate-hexane) to give the title compound 5-chlorophenyl-1-phenyl-1,2, 4-Triazolidin-3-one (0.27 g) was obtained as a colorless powder.
(実施例13)
5−メチルフェニル−1−フェニル−1,2,4−トリアゾリジン−3−オンの合成
p−トリルアルデヒドを原料として、実施例12に示した方法により、表題化合物5−メチルフェニル−1−フェニル−1,2,4−トリアゾリジン−3−オンを得た。
(Example 13)
Synthesis of 5-methylphenyl-1-phenyl-1,2,4-triazolidin-3-one According to the method shown in Example 12 using p-tolylaldehyde as a starting material, the title compound 5-methylphenyl-1-phenyl- 1,2,4-triazolidin-3-one was obtained.
(実施例14)
5−メトキシフェニル−1−フェニル−1,2,4−トリアゾリジン−3−オンの合成
p−メトキシベンズアルデヒドを原料として、実施例12に示した方法により、表題化合物5−メトキシフェニル−1−フェニル−1,2,4−トリアゾリジン−3−オンを得た。
(Example 14)
Synthesis of 5-methoxyphenyl-1-phenyl-1,2,4-triazolidin-3-one According to the method shown in Example 12 using p-methoxybenzaldehyde as a starting material, the title compound 5-methoxyphenyl-1-phenyl- 1,2,4-triazolidin-3-one was obtained.
(実施例15)
トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソピロリジン−3−カルボキサミドの合成
(1)N−[(4−クロロフェニル)メチリデン]−1−(4−メトキシフェニル)メタンアミンの合成
4−クロロベンズアルデヒド(10.0g)のベンゼン溶液(40mL)に1−(4−メトキシフェニル)メタンアミン(10.7g)を加え、19時間加熱還流した。室温下放冷後、反応液を減圧下留去し表題化合物N−[(4−クロロフェニル)メチリデン]−1−(4−メトキシフェニル)メタンアミン(18.5g)を淡黄色粉末として得た。
1HNMR (200 MHz, CDCl3) δ3.80 (s, 3 H), 4.75 (s, 2 H), 6.78 - 6.98 (m, 2 H), 7.17 - 7.30 (m, 2 H), 7.31 - 7.44 (m, 2 H), 7.61 - 7.77 (m, 2 H), 8.32 (s, 1 H)
(Example 15)
Synthesis of trans-N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxopyrrolidine-3-carboxamide (1) N-[(4-chlorophenyl) methylidene] -1- ( Synthesis of 4-methoxyphenyl) methanamine To a benzene solution (40 mL) of 4-chlorobenzaldehyde (10.0 g) was added 1- (4-methoxyphenyl) methanamine (10.7 g), and the mixture was heated to reflux for 19 hours. After allowing to cool at room temperature, the reaction mixture was evaporated under reduced pressure to give the title compound N-[(4-chlorophenyl) methylidene] -1- (4-methoxyphenyl) methanamine (18.5 g) as a pale yellow powder.
1 HNMR (200 MHz, CDCl 3 ) δ3.80 (s, 3 H), 4.75 (s, 2 H), 6.78-6.98 (m, 2 H), 7.17-7.30 (m, 2 H), 7.31-7.44 (m, 2 H), 7.61-7.77 (m, 2 H), 8.32 (s, 1 H)
(2)トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソピロリジン−3−カルボキサミドの合成
実施例15(1)で得られた化合物(10.4g)のベンゼン溶液(25mL)に無水コハク酸(4.00g)を加え、18時間加熱還流した。室温下放冷後、反応液を減圧下留去しトランス−2−(4−クロロフェニル)−1−(4−メトキシベンジル)−5−オキソピロリジン−3−カルボン酸(13.7g)を黄色粉末として得た。
ここで得られた化合物(2.00g)のN,N−ジメチルホルムアミド(15mL)溶液に4−アミノ−1−ベンジルピペリジン(1.04g)、1−ヒドロキシベンゾトリアゾール(1.80g)、1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(2.24g)を加え、室温下24時間攪拌した。反応液に重曹水を加え、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をカラムクロマトグラフィー(6%メタノール−クロロホルム)で精製し、トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−1−(4−メトキシベンジル)−5−オキソピロリジン−3−カルボキサミド(1.19g)を得た。
(2) Synthesis of trans-N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxopyrrolidine-3-carboxamide The compound obtained in Example 15 (1) (10. To a benzene solution (25 mL) of 4 g), succinic anhydride (4.00 g) was added, and the mixture was heated to reflux for 18 hours. After allowing to cool at room temperature, the reaction mixture was evaporated under reduced pressure, and trans-2- (4-chlorophenyl) -1- (4-methoxybenzyl) -5-oxopyrrolidine-3-carboxylic acid (13.7 g) was obtained as a yellow powder. Obtained.
To a solution of the compound (2.00 g) obtained here in N, N-dimethylformamide (15 mL), 4-amino-1-benzylpiperidine (1.04 g), 1-hydroxybenzotriazole (1.80 g), 1- Ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (2.24 g) was added, and the mixture was stirred at room temperature for 24 hours. Sodium bicarbonate water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by column chromatography (6% methanol-chloroform) and trans-N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -1- (4-methoxybenzyl). ) -5-oxopyrrolidine-3-carboxamide (1.19 g) was obtained.
ここで得られた化合物(1.19g)のアセトニトリル(10mL)溶液に水(0.2mL)、硝酸セリウム(IV)アンモニウム(6.13g)を加え、室温下7時間攪拌した。反応液に飽和重曹水を加え、生じた不溶物を濾別し、濾液を減圧下留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(14%メタノール−クロロホルム)で精製し、表題化合物トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソピロリジン−3−カルボキサミド(0.10g)を薄茶色粉末として得た。
1HNMR (200 MHz, CDCl3) δ 1.40-2.03 (m, 4H), 2.23 (t, J =12.1Hz, 2H), 2.51-3.04 (m, 5H), 3.56-3.71 (m, 2H), 3.90 (br. s., 1H), 4.88 (d, J =7.0Hz, 1H), 5.43 (br. s., 1H), 5.69 (s, 1H), 7.16-7.46 (m, 9H)
Water (0.2 mL) and cerium (IV) ammonium nitrate (6.13 g) were added to a solution of the compound (1.19 g) obtained here in acetonitrile (10 mL), and the mixture was stirred at room temperature for 7 hours. Saturated aqueous sodium hydrogen carbonate was added to the reaction solution, the resulting insoluble material was filtered off, and the filtrate was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (14% methanol-chloroform) to give the title compound trans-N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxopyrrolidine. -3-Carboxamide (0.10 g) was obtained as a light brown powder.
1 HNMR (200 MHz, CDCl 3 ) δ 1.40-2.03 (m, 4H), 2.23 (t, J = 12.1Hz, 2H), 2.51-3.04 (m, 5H), 3.56-3.71 (m, 2H), 3.90 (br. s., 1H), 4.88 (d, J = 7.0Hz, 1H), 5.43 (br. s., 1H), 5.69 (s, 1H), 7.16-7.46 (m, 9H)
(実施例16)
トランス−N−[2−(4−クロロフェニル)エチル]−2−フェニル−5−オキソピロリジン−3−カルボキサミドの合成
ベンズアルデヒドを原料として、実施例15に示した方法により、表題化合物トランス−N−[2−(4−クロロフェニル)エチル]−2−フェニル−5−オキソピロリジン−3−カルボキサミドを得た。
(Example 16)
Synthesis of trans-N- [2- (4-chlorophenyl) ethyl] -2-phenyl-5-oxopyrrolidine-3-carboxamide Using the benzaldehyde as a raw material, the title compound trans-N- [ 2- (4-Chlorophenyl) ethyl] -2-phenyl-5-oxopyrrolidine-3-carboxamide was obtained.
(実施例17)
トランス−N−(1−ベンジルピペリジン−4−イル)−2−フェニル−5−オキソピロリジン−3−カルボキサミドの合成
ベンズアルデヒドを原料として、実施例15に示した方法により、表題化合物トランス−N−(1−ベンジルピペリジン−4−イル)−2−フェニル−5−オキソピロリジン−3−カルボキサミドを得た。
(Example 17)
Synthesis of trans-N- (1-benzylpiperidin-4-yl) -2-phenyl-5-oxopyrrolidine-3-carboxamide Using the benzaldehyde as a starting material, the title compound trans-N- ( 1-Benzylpiperidin-4-yl) -2-phenyl-5-oxopyrrolidine-3-carboxamide was obtained.
(実施例18)
トランス−N−[2−(4−クロロフェニル)エチル]−2−フェニル−5−オキソピロリジン−3−カルボキサミドの合成
実施例15に合成中間体として示したトランス−2−(4−クロロフェニル)−1−(4−メトキシベンジル)−5−オキソピロリジン−3−カルボン酸と2−(4−クロロフェニル)エチルアミンを、実施例15に示した方法により縮合、脱保護し、表題化合物トランス−N−[2−(4−クロロフェニル)エチル]−2−フェニル−5−オキソピロリジン−3−カルボキサミドを得た。
(Example 18)
Synthesis of trans-N- [2- (4-chlorophenyl) ethyl] -2-phenyl-5-oxopyrrolidine-3-carboxamide Trans-2- (4-chlorophenyl) -1 shown as a synthetic intermediate in Example 15 -(4-Methoxybenzyl) -5-oxopyrrolidine-3-carboxylic acid and 2- (4-chlorophenyl) ethylamine were condensed and deprotected by the method shown in Example 15 to give the title compound trans-N- [2 -(4-Chlorophenyl) ethyl] -2-phenyl-5-oxopyrrolidine-3-carboxamide was obtained.
(実施例19)
5−(4−メトキシフェニル)−3−オキソ−N−[4−(トリフルオロメチル)フェニル]ピラゾリジン−1−カルボキサミドの合成
p−メトキシけい皮酸(5.00g)のトルエン(25mL)溶液に、ヒドラジン一水和物(2.8mL)を加え、100℃油浴上10時間攪拌した。反応液に水を加え、酢酸エチルで抽出し、水、飽和食塩水で順次洗浄した。無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し、得られた残留物を酢酸エチルで洗浄し5−(4−メトキシフェニル)ピラゾリジン−3−オン(1.16g)を淡褐色粉末として得た。
ここで得られた化合物(0.30g)のN,N−ジメチルホルムアミド(1mL)、テトラヒドロフラン(9mL)の混合溶液に、p−トリフルオロメチルフェニルイソシアネート(0.35mL)を加え、室温下30分間攪拌した。反応液に、水を加え酢酸エチルで抽出し、有機層を飽和食塩水で洗浄後、無水硫酸マグネシウムで乾燥し、溶媒を減圧留去した。得られた残留物をクロロホルム洗浄し、表題化合物5−(4−メトキシフェニル)−3−オキソ−N−[4−(トリフルオロメチル)フェニル]ピラゾリジン−1−カルボキサミド(0.49g)を無色粉末として得た。
(Example 19)
Synthesis of 5- (4-methoxyphenyl) -3-oxo-N- [4- (trifluoromethyl) phenyl] pyrazolidine-1-carboxamide To a solution of p-methoxycinnamic acid (5.00 g) in toluene (25 mL) Hydrazine monohydrate (2.8 mL) was added, and the mixture was stirred for 10 hours on a 100 ° C. oil bath. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate and washed successively with water and saturated brine. After drying over anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure, and the resulting residue was washed with ethyl acetate to obtain 5- (4-methoxyphenyl) pyrazolidine-3-one (1.16 g) as a light brown powder. .
To a mixed solution of the compound obtained here (0.30 g) in N, N-dimethylformamide (1 mL) and tetrahydrofuran (9 mL), p-trifluoromethylphenyl isocyanate (0.35 mL) is added, and then at room temperature for 30 minutes. Stir. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was washed with chloroform, and the title compound 5- (4-methoxyphenyl) -3-oxo-N- [4- (trifluoromethyl) phenyl] pyrazolidine-1-carboxamide (0.49 g) was colorless powder. Got as.
(実施例20)
N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボキサミド マレイン酸塩の合成
(1)2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボン酸エチルエステルの合成
20%ナトリウムエトキシド−エタノール溶液(9.2mL)へp−クロロフェニルヒドラジン塩酸(2.20g)を加え、室温下20分間攪拌した。反応液に、ジエチルマレイン酸(2.00g)を加え同温度下6時間攪拌した。反応後、溶媒留去し水を加え、酢酸エチルで抽出した。有機層を、5%塩酸、水、飽和食塩水で順次洗浄し、無水硫酸マグネシウムで乾燥した。溶媒を減圧留去し、得られた残留物をシリカゲルカラムクロマトグラフィー(30%酢酸エチル−ヘキサン)で精製し、2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボン酸エチルエステル(0.74g)を褐色粉末として得た。
(Example 20)
Synthesis of N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxamide maleate (1) 2- (4-chlorophenyl) -5-oxo Synthesis of pyrazolidine-3-carboxylic acid ethyl ester To a 20% sodium ethoxide-ethanol solution (9.2 mL) was added p-chlorophenylhydrazine hydrochloride (2.20 g), and the mixture was stirred at room temperature for 20 minutes. Diethyl maleic acid (2.00 g) was added to the reaction solution, and the mixture was stirred at the same temperature for 6 hours. After the reaction, the solvent was distilled off, water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with 5% hydrochloric acid, water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting residue was purified by silica gel column chromatography (30% ethyl acetate-hexane) to give 2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxylic acid ethyl ester. (0.74 g) was obtained as a brown powder.
(2)N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボキサミド マレイン酸塩の合成
実施例20(1)で得られた化合物(1.01g)のジオキサン(5mL)溶液に、濃塩酸(4mL)を加え、50分間加熱還流した。反応後、水を加え、酢酸エチルで抽出し、有機層を水、飽和食塩水で順次洗浄し、無水硫酸マグネシウムで乾燥した。溶媒を減圧留去し、2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボン酸(0.76g)を褐色アモルファスとして得た。
ここで得られた化合物(0.45g)のクロロホルム(5mL)溶液に、4−アミノ−1−ベンジルピペラジン(0.43g)、1−ヒドロキシベンゾトリアゾール(0.43g)、1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(0.30g)を加え、室温下一晩攪拌した。反応液に水を加え、酢酸エチルで抽出した。有機層を飽和重曹水、水、飽和食塩水で順次洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(5%メタノール−クロロホルム)で精製し、N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボキサミド(0.38g)を褐色粉末として得た。
ここで得られた化合物(0.38g)の酢酸エチル(2mL)、エタノール(2mL)の混合溶液にマレイン酸(0.11g)の酢酸エチル(2mL)溶液を加え、室温下30分間攪拌拌した。エーテル(5mL)を加え析出した結晶を減圧乾燥し、表題化合物N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボキサミド マレイン酸塩(0.32g)を無色粉末として得た。
(2) Synthesis of N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxamide maleate Compound obtained in Example 20 (1) Concentrated hydrochloric acid (4 mL) was added to a solution of (1.01 g) in dioxane (5 mL), and the mixture was heated to reflux for 50 minutes. After the reaction, water was added and the mixture was extracted with ethyl acetate. The organic layer was washed successively with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to obtain 2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxylic acid (0.76 g) as a brown amorphous substance.
To a chloroform (5 mL) solution of the compound (0.45 g) obtained here, 4-amino-1-benzylpiperazine (0.43 g), 1-hydroxybenzotriazole (0.43 g), 1-ethyl-3- (3-Dimethylaminopropyl) carbodiimide hydrochloride (0.30 g) was added and stirred overnight at room temperature. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with saturated aqueous sodium hydrogen carbonate, water and saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (5% methanol-chloroform), and N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxopyrazolidine-3 Carboxamide (0.38 g) was obtained as a brown powder.
A solution of maleic acid (0.11 g) in ethyl acetate (2 mL) was added to a mixed solution of the obtained compound (0.38 g) in ethyl acetate (2 mL) and ethanol (2 mL), and the mixture was stirred at room temperature for 30 minutes. . Ether (5 mL) was added and the precipitated crystals were dried under reduced pressure to give the title compound N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxamide maleate (0.32 g) was obtained as a colorless powder.
(実施例21)
N−[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル]−2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボキサミド マレイン酸塩の合成
実施例20に合成中間体として示した2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボン酸と、参考例4で得られた化合物を、実施例15に示した方法により縮合後、マレイン酸塩とし表題化合物N−[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル]−2−(4−クロロフェニル)−5−オキソピラゾリジン−3−カルボキサミド マレイン酸塩を得た。
(Example 21)
Synthesis of N- [1- (2,3,5-trifluorobenzyl) piperidin-4-yl] -2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxamide maleate Example 20 After condensing 2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxylic acid shown as a synthetic intermediate with the compound obtained in Reference Example 4 by the method shown in Example 15, maleic acid The title compound N- [1- (2,3,5-trifluorobenzyl) piperidin-4-yl] -2- (4-chlorophenyl) -5-oxopyrazolidine-3-carboxamide maleate was obtained as a salt. It was.
(実施例22)
トランス−N−(1−ベンジルピペリジン−4−イル)2−(4−クロロフェニル)テトラヒドロフラン−3−カルボキサミド塩酸塩の合成
(1)トランス−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボン酸エチルの合成
4−ブロモ酪酸エチル(4.00g)と4−クロロベンズアルデヒド(3.50g)のテトラヒドロフラン(41mL)溶液に、t−ブトキシカリウム(4.14g)を4回に分けて−40℃で加え、同温度下2時間攪拌した。反応液に飽和塩化アンモニウム水溶液を加え、クロロホルムで抽出した。有機層を無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、残留物をシリカゲルカラムクロマトグラフィー(5%酢酸エチル−ヘキサン)で精製し、トランス−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボン酸エチル(1.30g)を無色油状物として得た。
1HNMR (300 MHz, CDCl3) δ 1.25 (t, J =7.2Hz, 3H), 2.21-2.41 (m, 2H), 2.83-2.95 (m, 1H), 3.97-4.09 (m, 1H), 4.11-4.25 (m, 3H), 5.01 (d, J =7.3Hz, 1H), 7.27-7.34 (m, 4H)
(Example 22)
Synthesis of trans-N- (1-benzylpiperidin-4-yl) 2- (4-chlorophenyl) tetrahydrofuran-3-carboxamide hydrochloride (1) of trans-2- (4-chlorophenyl) tetrahydrofuran-3-carboxylate Synthesis To a solution of ethyl 4-bromobutyrate (4.00 g) and 4-chlorobenzaldehyde (3.50 g) in tetrahydrofuran (41 mL) was added t-butoxypotassium (4.14 g) in 4 portions at −40 ° C., The mixture was stirred at the same temperature for 2 hours. A saturated aqueous ammonium chloride solution was added to the reaction solution, and the mixture was extracted with chloroform. The organic layer was dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (5% ethyl acetate-hexane), and trans-2- (4-chlorophenyl) tetrahydrofuran-3-carboxyl. Ethyl acid (1.30 g) was obtained as a colorless oil.
1 HNMR (300 MHz, CDCl 3 ) δ 1.25 (t, J = 7.2Hz, 3H), 2.21-2.41 (m, 2H), 2.83-2.95 (m, 1H), 3.97-4.09 (m, 1H), 4.11 -4.25 (m, 3H), 5.01 (d, J = 7.3Hz, 1H), 7.27-7.34 (m, 4H)
(2)トランス−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボン酸の合成
実施例22(1)で得られた化合物(1.30g)のメタノール−水混合4mL溶液に室温下水酸化リチウム一水和物(0.64g)を加え、同温度下2時間攪拌した。反応液に酢酸エチルを加え、飽和重曹水で抽出した。有機層を除去後、水層に2N塩酸を加え酸性とし、酢酸エチルで2回抽出した。無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、トランス−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボン酸(1.10g)を無色油状物として得た。
1HNMR (300 MHz, CDCl3) δ 2.24-2.45 (m, 2H), 2.89-3.04 (m, 1H), 3.98-4.25 (m, 2H), 5.07 (d, J =7.0Hz, 1H), 7.23-7.39 (m, 4H), 10.07 (br. s, 1H)
(2) Synthesis of trans-2- (4-chlorophenyl) tetrahydrofuran-3-carboxylic acid To a 4 mL methanol-water mixed solution of the compound (1.30 g) obtained in Example 22 (1), lithium hydroxide monohydrate at room temperature. A Japanese product (0.64 g) was added and stirred at the same temperature for 2 hours. Ethyl acetate was added to the reaction mixture, and the mixture was extracted with saturated aqueous sodium hydrogen carbonate. After removing the organic layer, the aqueous layer was acidified with 2N hydrochloric acid and extracted twice with ethyl acetate. After drying over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure to obtain trans-2- (4-chlorophenyl) tetrahydrofuran-3-carboxylic acid (1.10 g) as a colorless oil.
1 HNMR (300 MHz, CDCl 3 ) δ 2.24-2.45 (m, 2H), 2.89-3.04 (m, 1H), 3.98-4.25 (m, 2H), 5.07 (d, J = 7.0Hz, 1H), 7.23 -7.39 (m, 4H), 10.07 (br.s, 1H)
(3)トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボキサミド塩酸塩の合成
実施例22(2)で得られた化合物(0.50g)、4−アミノ−1−ベンジルピペリジン(0.54mL)、1−ヒドロキシベンゾトリアゾール(0.51g)のクロロホルム(4.6mL)溶液に1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(0.64g)を加え室温下一晩攪拌した。反応液に飽和重曹水を加え、クロロホルムで3回抽出した。無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、残留物をシリカゲルカラムクロマトグラフィーで精製した後に、酢酸エチルに溶解させ、4N塩化水素−酢酸エチル溶液を加え結晶を析出させた。結晶を濾取後、減圧乾燥させ、表題化合物トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボキサミド塩酸塩(0.70g)を無色粉末として得た。
(3) Synthesis of trans-N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) tetrahydrofuran-3-carboxamide hydrochloride Compound (0.50 g) obtained in Example 22 (2) 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride in a solution of 4-amino-1-benzylpiperidine (0.54 mL) and 1-hydroxybenzotriazole (0.51 g) in chloroform (4.6 mL) (0.64 g) was added and stirred overnight at room temperature. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted 3 times with chloroform. After drying over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography, dissolved in ethyl acetate, and 4N hydrogen chloride-ethyl acetate solution was added to precipitate crystals. The crystals were collected by filtration and dried under reduced pressure to give the title compound trans-N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) tetrahydrofuran-3-carboxamide hydrochloride (0.70 g) as a colorless powder. Obtained.
(実施例23)
トランス−N−{[1−(4−クロロベンジル)ピペラジン]−4−イル}−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボキサミド塩酸塩の合成
実施例22に合成中間体として示したトランス−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボン酸と1−(4−クロロベンジル)ピペラジンを、実施例22に示した方法により縮合後、塩酸塩とし表題化合物トランス−N−{[1−(4−クロロベンジル)ピペラジン]−4−イル}−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボキサミド塩酸塩を得た。
(Example 23)
Synthesis of trans-N-{[1- (4-chlorobenzyl) piperazin] -4-yl} -2- (4-chlorophenyl) tetrahydrofuran-3-carboxamide hydrochloride 2- (4-Chlorophenyl) tetrahydrofuran-3-carboxylic acid and 1- (4-chlorobenzyl) piperazine were condensed by the method shown in Example 22 to give the hydrochloride, and the title compound trans-N-{[1- ( 4-Chlorobenzyl) piperazine] -4-yl} -2- (4-chlorophenyl) tetrahydrofuran-3-carboxamide hydrochloride was obtained.
(実施例24)
トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−N−メチル−テトラヒドロフラン−3−カルボキサミドの合成
実施例22に合成中間体として示したトランス−2−(4−クロロフェニル)テトラヒドロフラン−3−カルボン酸と4−メチルアミノ−1−ベンジルピペリジンを、実施例22に示した方法により縮合し、表題化合物トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−N−メチル−テトラヒドロフラン−3−カルボキサミドを得た。
(Example 24)
Synthesis of trans-N- (1-benzylpiperidin-4-yl) -2- (4-chlorophenyl) -N-methyl-tetrahydrofuran-3-carboxamide Trans-2- (4 shown as a synthetic intermediate in Example 22 -Chlorophenyl) tetrahydrofuran-3-carboxylic acid and 4-methylamino-1-benzylpiperidine were condensed by the method shown in Example 22 to give the title compound trans-N- (1-benzylpiperidin-4-yl) -2. -(4-Chlorophenyl) -N-methyl-tetrahydrofuran-3-carboxamide was obtained.
(実施例25)
N−(1−ベンジルピペリジン−4−イル)−4−オキソ−1−[4−(トリフルオロメチル)フェニル]−L−プロリンアミドの合成
(1)(2S,4R)−2−[(1−ベンジルピペリジン−4−イル)カルバモイル]−4−ヒドロキシピロリジン−1−カルボン酸t−ブチルの合成
(4R)−1−(t−ブトキシカルボニル)−4−ヒドロキシ−L−プロリン(2.80g)のN,N−ジメチルホルムアミド(30mL)溶液に4−アミノ−1−ベンジルピペリジン(2.80g)、1−ヒドロキシベンゾトリアゾール(2.1g)、1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(3.00g)を加え、室温下24時間攪拌した。反応液に飽和重曹水を加え、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(10%メタノール−クロロホルム)で精製し、表題化合物(2S,4R)−2−[(1−ベンジルピペリジン−4−イル)カルバモイル]−4−ヒドロキシピロリジン−1−カルボン酸t−ブチル(3.70g)を無色粉末として得た。
1H NMR (200 MHz,CDCl3) δ 1.37 - 1.51 (m, 11 H), 1.63 - 2.22 (m, 8 H), 2.67 - 2.89 (m, 2 H), 3.41 - 3.55 (m, 3 H), 3.67 - 3.87 (m, 1 H), 4.26 - 4.56 (m, 2 H), 7.17 - 7.37 (m, 5 H)
(Example 25)
Synthesis of N- (1-benzylpiperidin-4-yl) -4-oxo-1- [4- (trifluoromethyl) phenyl] -L-prolinamide (1) (2S, 4R) -2-[(1 -Benzylpiperidin-4-yl) carbamoyl] -4-hydroxypyrrolidine-1-carboxylate t-butyl synthesis (4R) -1- (t-butoxycarbonyl) -4-hydroxy-L-proline (2.80 g) Of N, N-dimethylformamide (30 mL) in 4-amino-1-benzylpiperidine (2.80 g), 1-hydroxybenzotriazole (2.1 g), 1-ethyl-3- (3-dimethylaminopropyl) Carbodiimide hydrochloride (3.00 g) was added, and the mixture was stirred at room temperature for 24 hours. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (10% methanol-chloroform), and the title compound (2S, 4R) -2-[(1-benzylpiperidin-4-yl) carbamoyl] -4-hydroxypyrrolidine- T-Butyl 1-carboxylate (3.70 g) was obtained as a colorless powder.
1 H NMR (200 MHz, CDCl 3 ) δ 1.37-1.51 (m, 11 H), 1.63-2.22 (m, 8 H), 2.67-2.89 (m, 2 H), 3.41-3.55 (m, 3 H) , 3.67-3.87 (m, 1 H), 4.26-4.56 (m, 2 H), 7.17-7.37 (m, 5 H)
(2)(4R)−N−(1−ベンジルピペリジン−4−イル)−4−ヒドロキシ−1−[4−(トリフルオロメチル)フェニル]−L−プロリンアミドの合成
実施例25(1)で得られた(2S,4R)−2−[(1−ベンジルピペリジン−4−イル)カルバモイル]−4−ヒドロキシピロリジン−1−カルボン酸t−ブチル(3.7g)のメタノール(25mL)溶液に4M塩化水素−1,4−ジオキサン(6mL)を加え、1時間加熱還流した。反応液を減圧下溶媒留去し、水、酢酸エチルを加え、水層のみを分離した。得られた水層を2M水酸化ナトリウム水溶液でpH=12に調整した後、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去し(4R)−N−(1−ベンジルピペリジン−4−イル)−4−ヒドロキシ−L−プロリンアミド(1.5g)を無色粉末として得た。
ここで得られた化合物(1.0g)のトルエン(10mL)懸濁溶液に4−トリフルオロメチルフェニルブロマイド(0.5mL)、トリス(ジベンジリデンアセトン)ジパラジウム(0.30g)、(±)−2,2−ビス(ジフェニルホスフィノ)−1,1−ビナフチル(0.21g)、炭酸セシウム(2.2g)を加え、70℃で11時間攪拌した。反応液をセライトろ過、濾液を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(2%メタノール−クロロホルム)で精製し、表題化合物(4R)−N−(1−ベンジルピペリジン−4−イル)−4−ヒドロキシ−1−[4−(トリフルオロメチル)フェニル]−L−プロリンアミド(0.13g)を茶褐色アモルファスとして得た。
1H NMR (200 MHz,CDCl3) δ 1.28 - 1.45 (m, 2 H), 1.67 - 1.89 (m, 2 H), 1.98 - 2.16 (m, 2 H), 2.23 - 2.53 (m, 2 H), 2.58 - 2.80 (m, 2 H), 3.28 - 3.40 (m, 1 H), 3.43 (s, 2 H), 3.68 - 3.84 (m, 1 H), 3.84 - 3.96 (m, 1 H), 4.15 - 4.29 (m, 1 H), 4.51 - 4.70 (m, 1 H), 6.03 (d, J=9.3 Hz, 1 H), 6.61 (d, J=8.6 Hz, 2 H), 7.13 - 7.39 (m, 5 H), 7.47 (d, J=8.6 Hz, 2 H)
(2) Synthesis of (4R) -N- (1-benzylpiperidin-4-yl) -4-hydroxy-1- [4- (trifluoromethyl) phenyl] -L-prolinamide In Example 25 (1) The resulting (2S, 4R) -2-[(1-benzylpiperidin-4-yl) carbamoyl] -4-hydroxypyrrolidine-1-carboxylate t-butyl (3.7 g) in methanol (25 mL) was added 4M. Hydrogen chloride-1,4-dioxane (6 mL) was added, and the mixture was heated to reflux for 1 hr. The reaction mixture was evaporated under reduced pressure, water and ethyl acetate were added, and only the aqueous layer was separated. The obtained aqueous layer was adjusted to pH = 12 with 2M aqueous sodium hydroxide solution and extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure to give (4R) -N- (1-benzylpiperidin-4-yl) -4-hydroxy-L-prolinamide (1. 5 g) was obtained as a colorless powder.
4-trifluoromethylphenyl bromide (0.5 mL), tris (dibenzylideneacetone) dipalladium (0.30 g), (±) in a suspension solution of the compound (1.0 g) obtained in toluene (10 mL). -2,2-bis (diphenylphosphino) -1,1-binaphthyl (0.21 g) and cesium carbonate (2.2 g) were added, and the mixture was stirred at 70 ° C. for 11 hours. The reaction solution was filtered through Celite, and the filtrate was distilled off under reduced pressure. The obtained residue was purified by silica gel column chromatography (2% methanol-chloroform), and the title compound (4R) -N- (1-benzylpiperidin-4-yl) -4-hydroxy-1- [4- ( Trifluoromethyl) phenyl] -L-prolinamide (0.13 g) was obtained as a brown amorphous.
1 H NMR (200 MHz, CDCl 3 ) δ 1.28-1.45 (m, 2 H), 1.67-1.89 (m, 2 H), 1.98-2.16 (m, 2 H), 2.23-2.53 (m, 2 H) 2.58-2.80 (m, 2 H), 3.28-3.40 (m, 1 H), 3.43 (s, 2 H), 3.68-3.84 (m, 1 H), 3.84-3.96 (m, 1 H), 4.15 -4.29 (m, 1 H), 4.51-4.70 (m, 1 H), 6.03 (d, J = 9.3 Hz, 1 H), 6.61 (d, J = 8.6 Hz, 2 H), 7.13-7.39 (m , 5 H), 7.47 (d, J = 8.6 Hz, 2 H)
(3)N−(1−ベンジルピペリジン−4−イル)−4−オキソ−1−[4−(トリフルオロメチル)フェニル]−L−プロリンアミドの合成
実施例25(2)で得られた化合物(0.13g)のジメチルスルホキシド(2mL)溶液にデスマーチン試薬(0.28g)を加え、室温下24時間攪拌した。反応液に飽和重曹水を加え、酢酸エチルで抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(5%メタノール−クロロホルム)で精製し、表題化合物N−(1−ベンジルピペリジン−4−イル)−4−オキソ−1−[4−(トリフルオロメチル)フェニル]−L−プロリンアミド(60mg)を淡褐色アモルファスとして得た。
(3) Synthesis of N- (1-benzylpiperidin-4-yl) -4-oxo-1- [4- (trifluoromethyl) phenyl] -L-prolinamide Compound obtained in Example 25 (2) To a solution of (0.13 g) in dimethyl sulfoxide (2 mL), Dess-Martin reagent (0.28 g) was added and stirred at room temperature for 24 hours. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (5% methanol-chloroform), and the title compound N- (1-benzylpiperidin-4-yl) -4-oxo-1- [4- (trifluoromethyl) Phenyl] -L-prolinamide (60 mg) was obtained as a light brown amorphous.
(実施例26)
1−(1−ベンジルピペリジン−4−イル)−3−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]尿素の合成
(1)[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]カルバミン酸t−ブチルの合成
参考例1(1)で得られた化合物(10.0g)のクロロホルム(50mL)、テトラヒドロフラン(50mL)混合溶液にチオニルクロライド(4.5mL)を加え、2時間加熱還流した。室温下放冷後、反応液を減圧下溶媒留去した。得られた残留物をクロロホルム(50mL)に溶解させ、氷冷下、テトラブチルアンモニウムブロマイド(0.14g)、アジ化ナトリウム(8.20g)、水(5mL)を加え、同温度下1.5時間攪拌した。反応液に水を加え、クロロホルム(100mL)を用いて抽出した。抽出した有機層を水、飽和食塩水で順次洗浄、無水硫酸マグネシウムで乾燥後、乾燥剤を濾別した。得られた濾液にt−ブチルアルコール(80mL)を加え、1.5時間加熱還流した。室温下放冷後、反応液に水を加え、有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、乾燥剤を濾別、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(20%酢酸エチル−ヘキサン)で精製後、ヘキサン−酢酸エチル系で再結晶し表題化合物[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]カルバミン酸t−ブチル(1.50g)を無色粉末として得た。
1H NMR (200 MHz,CDCl3) δ 1.46 (s, 9 H), 2.44 - 2.54 (m, 1 H), 2.82 - 2.94 (m, 1 H), 4.17 - 4.30 (m, 1 H), 4.84 - 4.96 (m, 1 H), 5.41 - 5.51 (m, 1 H), 7.32 - 7.42 (m, 4 H)
(Example 26)
Synthesis of 1- (1-benzylpiperidin-4-yl) -3- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] urea (1) [trans-2- (4-chlorophenyl] Synthesis of t-butyl) -5-oxotetrahydrofuran-3-yl] carbamate To a mixed solution of the compound (10.0 g) obtained in Reference Example 1 (1) in chloroform (50 mL) and tetrahydrofuran (50 mL), thionyl chloride ( (4.5 mL) was added and the mixture was heated to reflux for 2 hours. After allowing to cool at room temperature, the solvent of the reaction solution was distilled off under reduced pressure. The obtained residue was dissolved in chloroform (50 mL), and tetrabutylammonium bromide (0.14 g), sodium azide (8.20 g) and water (5 mL) were added under ice cooling, and 1.5 ° C. was added at the same temperature. Stir for hours. Water was added to the reaction mixture, and the mixture was extracted with chloroform (100 mL). The extracted organic layer was washed successively with water and saturated brine, dried over anhydrous magnesium sulfate, and the desiccant was filtered off. T-Butyl alcohol (80 mL) was added to the obtained filtrate and heated under reflux for 1.5 hours. After allowing to cool at room temperature, water was added to the reaction mixture, the organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, the desiccant was filtered off, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (20% ethyl acetate-hexane) and recrystallized from hexane-ethyl acetate system to give the title compound [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3. -Il] t-butyl carbamate (1.50 g) was obtained as a colorless powder.
1 H NMR (200 MHz, CDCl 3 ) δ 1.46 (s, 9 H), 2.44-2.54 (m, 1 H), 2.82-2.94 (m, 1 H), 4.17-4.30 (m, 1 H), 4.84 -4.96 (m, 1 H), 5.41-5.51 (m, 1 H), 7.32-7.42 (m, 4 H)
(2)トランス−4−アミノ−5−(4−クロロフェニル)ジヒドロフラン−2(3H)−オン塩酸塩の合成
実施例26(1)で得られた化合物(1.40g)の酢酸エチル(20mL)溶液に4M塩化水素−酢酸エチル溶液(5mL)を加え、室温下3日間攪拌した。析出してきた固体を濾取し、減圧加熱乾燥し表題化合物トランス−4−アミノ−5−(4−クロロフェニル)ジヒドロフラン−2(3H)−オン塩酸塩(1.00g)を無色粉末として得た。
1H NMR (200 MHz, DMSO-d6) δ 2.73 (dd, J=18.6, 3.7 Hz, 1 H), 3.23 (dd, J=18.6, 8.7 Hz, 1 H), 4.03 (dt, J=8.7, 3.7 Hz, 1 H), 5.70 (d, J=3.7 Hz, 1 H), 7.44 - 7.58 (m, 4 H).
(2) Synthesis of trans-4-amino-5- (4-chlorophenyl) dihydrofuran-2 (3H) -one hydrochloride The compound (1.40 g) obtained in Example 26 (1) in ethyl acetate (20 mL) 4M Hydrogen chloride-ethyl acetate solution (5 mL) was added to the solution, and the mixture was stirred at room temperature for 3 days. The precipitated solid was collected by filtration and dried by heating under reduced pressure to give the title compound trans-4-amino-5- (4-chlorophenyl) dihydrofuran-2 (3H) -one hydrochloride (1.00 g) as a colorless powder. .
1 H NMR (200 MHz, DMSO-d 6 ) δ 2.73 (dd, J = 18.6, 3.7 Hz, 1 H), 3.23 (dd, J = 18.6, 8.7 Hz, 1 H), 4.03 (dt, J = 8.7 , 3.7 Hz, 1 H), 5.70 (d, J = 3.7 Hz, 1 H), 7.44-7.58 (m, 4 H).
(3)1−(1−ベンジルピペリジン−4−イル)−3−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]尿素の合成
トリホスゲン(0.24g)のクロロホルム(10mL)溶液に実施例26(2)で得られた化合物(0.50g)、N,N−ジイソプロピルエチルアミン(1.2mL)のクロロホルム(20mL)溶液を室温下30分間で滴下した。同温度下5分間攪拌した後、4−アミノ−1−ベンジルピペリジン(0.38mL)のクロロホルム(20mL)溶液を室温下10分間で滴下し、同温度下20分間攪拌した。反応液に飽和重曹水を加え、同温度下30分間攪拌した後、有機層を分離した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(酢酸エチル)で精製し、表題化合物1−(1−ベンジルピペリジン−4−イル)−3−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]尿素(0.43g)を無色アモルファスとして得た。
(3) Synthesis of 1- (1-benzylpiperidin-4-yl) -3- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] urea Triphosgene (0.24 g) in chloroform ( A solution of the compound obtained in Example 26 (2) (0.50 g) and N, N-diisopropylethylamine (1.2 mL) in chloroform (20 mL) was added dropwise to the solution at room temperature over 30 minutes. After stirring at the same temperature for 5 minutes, a solution of 4-amino-1-benzylpiperidine (0.38 mL) in chloroform (20 mL) was added dropwise at room temperature for 10 minutes and stirred at the same temperature for 20 minutes. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was stirred at the same temperature for 30 minutes, and then the organic layer was separated. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate) to give the title compound 1- (1-benzylpiperidin-4-yl) -3- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran. -3-yl] urea (0.43 g) was obtained as a colorless amorphous.
(実施例27)
4−(4−クロロベンジル)−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル)ピペラジン−1−カルボキサミドの合成
実施例26に合成中間体として示したトランス−4−アミノ−5−(4−クロロフェニル)ジヒドロフラン−2(3H)−オンと(4−クロロベンジル)ピペラジンを、実施例26に示した方法により反応し、表題化合物4−(4−クロロベンジル)−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル)ピペラジン−1−カルボキサミドを得た。
(Example 27)
Synthesis of 4- (4-chlorobenzyl) -N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl) piperazine-1-carboxamide trans- shown as a synthetic intermediate in Example 26 4-Amino-5- (4-chlorophenyl) dihydrofuran-2 (3H) -one and (4-chlorobenzyl) piperazine are reacted by the method shown in Example 26 to give the title compound 4- (4-chlorobenzyl). ) -N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl) piperazine-1-carboxamide was obtained.
(実施例28)
4−(4−トリフルオロベンジル)−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル)ピペラジン−1−カルボキサミドの合成
4−トリフルオロベンズアルデヒドを原料として、参考例1(1)示した方法に続き、実施例26に示した方法により合成し、表題化合物4−(4−トリフルオロベンジル)−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル)ピペラジン−1−カルボキサミドを得た。
(Example 28)
Synthesis of 4- (4-trifluorobenzyl) -N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl) piperazine-1-carboxamide Reference example using 4-trifluorobenzaldehyde as a raw material 1 (1) Following the indicated method, the title compound 4- (4-trifluorobenzyl) -N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran was synthesized by the method shown in Example 26. -3-yl) piperazine-1-carboxamide was obtained.
(実施例29)
1−ベンジル−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]ピペリジン−4−カルボキサミド マレイン酸塩の合成
(1)4−{[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]カルバモイル}ピペリジン−1−カルボン酸 t−ブチルの合成
実施例26(2)で得られた化合物(1.00g)のクロロホルム(10mL)懸濁溶液にN−Boc−イソニペコチン酸(1.10g)、トリエチルアミン(0.74mL)、1−ヒドロキシベンゾトリアゾール(0.70g)、1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(1.00g)を加え、室温下24時間攪拌した。反応液に水を加え、酢酸エチルで抽出した。有機層を飽和重曹水、飽和食塩水で順次洗浄、無水硫酸マグネシウムで乾燥後、乾燥剤を濾別、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(50%酢酸エチル−ヘキサン)で精製し表題化合物4−{[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]カルバモイル}ピペリジン−1−カルボン酸t−ブチル(1.40g)を無色アモルファスとして得た。
1H NMR (200 MHz,CDCl3) δ 1.46 (s, 9 H), 1.59 - 1.76 (m, 2 H), 1.78 - 1.93 (m, 2 H), 2.23 - 2.41 (m, 1 H), 2.43 - 2.59 (m, 1 H), 2.68 - 3.00 (m, 3 H), 4.00 - 4.29 (m, 2 H), 4.41 - 4.59 (m, 1 H), 5.48 (d, J=2.3 Hz, 1 H), 6.52 (d, J=5.9 Hz, 1 H), 7.27 - 7.56 (m, 4 H)
(Example 29)
Synthesis of 1-benzyl-N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] piperidine-4-carboxamide maleate (1) 4-{[trans-2- (4- Synthesis of chlorophenyl) -5-oxotetrahydrofuran-3-yl] carbamoyl} piperidine-1-carboxylate t-butyl To a suspension of the compound (1.00 g) obtained in Example 26 (2) in chloroform (10 mL) N-Boc-isonipecotic acid (1.10 g), triethylamine (0.74 mL), 1-hydroxybenzotriazole (0.70 g), 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (1.00 g ) And stirred at room temperature for 24 hours. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with saturated aqueous sodium hydrogen carbonate and saturated brine, dried over anhydrous magnesium sulfate, the desiccant was filtered off, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (50% ethyl acetate-hexane) to give the title compound 4-{[trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] carbamoyl} piperidine- T-butyl 1-carboxylate (1.40 g) was obtained as a colorless amorphous.
1 H NMR (200 MHz, CDCl 3 ) δ 1.46 (s, 9 H), 1.59-1.76 (m, 2 H), 1.78-1.93 (m, 2 H), 2.23-2.41 (m, 1 H), 2.43 -2.59 (m, 1 H), 2.68-3.00 (m, 3 H), 4.00-4.29 (m, 2 H), 4.41-4.59 (m, 1 H), 5.48 (d, J = 2.3 Hz, 1 H ), 6.52 (d, J = 5.9 Hz, 1 H), 7.27-7.56 (m, 4 H)
(2)1−ベンジル−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]ピペリジン−4−カルボキサミド マレイン酸塩の合成
実施例29(1)で得られた化合物(1.40g)の酢酸エチル(15mL)溶液に4M塩化水素−酢酸エチル溶液(12mL)を加え、室温下6時間攪拌し、反応液を減圧下溶媒留去し無色粉末(0.72g)を得た。ここで得られた無色粉末のN,N−ジメチルホルムアミド(10mL)懸濁溶液にベンズアルデヒド(0.53g)、酢酸(0.57mL)を加え、室温下1時間攪拌した。そこにトリアセトキシ水素化ホウ素ナトリウム(2.10g)を加え、室温下24時間攪拌した。反応液に飽和重曹水を加え、酢酸エチルを用いて抽出した。抽出した有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をカラムクロマトグラフィー(酢酸エチル)で精製し、1−ベンジル−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]ピペリジン−4−カルボキサミド(0.72g)を無色粉末として得た。
ここで得られた化合物(0.30g)の酢酸エチル(3mL)溶液にマレイン酸(84mg)の酢酸エチル(2.6mL)溶液を加え、室温下3時間攪拌した。析出した固体を濾取、減圧加熱乾燥し表題化合物1−ベンジル−N−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]ピペリジン−4−カルボキサミド マレイン酸塩(0.29g)を無色粉末として得た。
(2) Synthesis of 1-benzyl-N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] piperidine-4-carboxamide maleate Compound obtained in Example 29 (1) 4M hydrogen chloride-ethyl acetate solution (12 mL) was added to a solution of (1.40 g) in ethyl acetate (15 mL), and the mixture was stirred at room temperature for 6 hours. Obtained. Benzaldehyde (0.53 g) and acetic acid (0.57 mL) were added to a suspension of the colorless powder obtained here in N, N-dimethylformamide (10 mL), and the mixture was stirred at room temperature for 1 hour. Thereto was added sodium triacetoxyborohydride (2.10 g), and the mixture was stirred at room temperature for 24 hours. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extracted organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by column chromatography (ethyl acetate), and 1-benzyl-N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] piperidine-4-carboxamide (0 .72 g) as a colorless powder.
To a solution of the obtained compound (0.30 g) in ethyl acetate (3 mL) was added maleic acid (84 mg) in ethyl acetate (2.6 mL), and the mixture was stirred at room temperature for 3 hours. The precipitated solid was collected by filtration, dried by heating under reduced pressure, and the title compound 1-benzyl-N- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] piperidine-4-carboxamide maleate (0. 29 g) was obtained as a colorless powder.
(実施例30)
1−ベンジル−N−[トランス−2−(4−トリフルオロフェニル)−5−オキソテトラヒドロフラン−3−イル]ピペリジン−4−カルボキサミド マレイン酸塩の合成
4−トリフルオロベンズアルデヒドを原料として、参考例1(1)に示した方法に続き、実施例29に示した方法により合成し、表題化合物1−ベンジル−N−[トランス−2−(4−トリフルオロフェニル)−5−オキソテトラヒドロフラン−3−イル]ピペリジン−4−カルボキサミド マレイン酸塩を得た。
(Example 30)
Synthesis of 1-benzyl-N- [trans-2- (4-trifluorophenyl) -5-oxotetrahydrofuran-3-yl] piperidine-4-carboxamide maleate Reference Example 1 using 4-trifluorobenzaldehyde as a raw material Following the method shown in (1), the title compound 1-benzyl-N- [trans-2- (4-trifluorophenyl) -5-oxotetrahydrofuran-3-yl was synthesized by the method shown in Example 29. Piperidine-4-carboxamide maleate was obtained.
(実施例31)
N−(1−ベンジルピペリジン−4−イル)−2−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]アセトアミドの合成
(1)トランス−5−(4−クロロフェニル)−4−(2−ジアゾアセチル)ジヒドロフラン−2(3H)−オンの合成
参考例1(3)で得られた化合物(1.02g)のクロロホルム(8mL)溶液にオキサリルクロリド(0.55mL)、ジメチルホルムアミド1滴を加え、室温下2時間攪拌した。反応液を減圧濃縮した後に、テトラヒドロフラン(8mL)に溶解させ、氷冷下でトリメチルシリルジアゾメタン4.3mLを加え、同温度下2時間攪拌した。反応液を減圧濃縮し、残留物をシリカゲルカラムクロマトグラフィー(50%酢酸エチル−ヘキサン)で精製し、トランス−5−(4−クロロフェニル)−4−(2−ジアゾアセチル)ジヒドロフラン−2(3H)−オン(0.88g)を黄色油状物として得た。
1HNMR (300 MHz, CDCl3) δ(δ): 2.75-2.88 (m, 1H), 3.00-3.26 (m, 2H), 5.16 (s, 1H), 5.54 (d, J =8.2Hz, 1H), 7.24-7.42 (m, 4H)
(Example 31)
Synthesis of N- (1-benzylpiperidin-4-yl) -2- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] acetamide (1) trans-5- (4-chlorophenyl) Synthesis of -4- (2-diazoacetyl) dihydrofuran-2 (3H) -one To a solution of the compound (1.02 g) obtained in Reference Example 1 (3) in chloroform (8 mL), oxalyl chloride (0.55 mL) Then, 1 drop of dimethylformamide was added and stirred at room temperature for 2 hours. The reaction solution was concentrated under reduced pressure, dissolved in tetrahydrofuran (8 mL), added with 4.3 mL of trimethylsilyldiazomethane under ice cooling, and stirred at the same temperature for 2 hours. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (50% ethyl acetate-hexane), and trans-5- (4-chlorophenyl) -4- (2-diazoacetyl) dihydrofuran-2 (3H ) -One (0.88 g) was obtained as a yellow oil.
1 HNMR (300 MHz, CDCl 3 ) δ (δ): 2.75-2.88 (m, 1H), 3.00-3.26 (m, 2H), 5.16 (s, 1H), 5.54 (d, J = 8.2Hz, 1H) , 7.24-7.42 (m, 4H)
(2)N−(1−ベンジルピペリジン−4−イル)−2−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]アセトアミドの合成
実施例31(1)で得られた化合物(0.88g)のメタノール(3.3mL)溶液に安息香酸銀(I)(0.06g)のトリエチルアミン(0.6mL)溶液を室温で加え、同温度下30分間攪拌した
。反応液をセライト濾過後、減圧濃縮し、残留物をシリカゲルカラムクロマトグラフィー(30%酢酸エチル−ヘキサン)で精製し、[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]酢酸メチル(0.81g)を無色油状物として得た。
ここで得られた化合物(0.76g)の50%メタノール−水(4mL)溶液に室温下水酸化リチウム一水和物(0.37g)を加え、同温度下4時間攪拌した。反応液を濃縮後、酢酸エチルを加え飽和重曹水で抽出した。水層に2N塩酸を加え酸性とし、酢酸エチルで抽出し、飽和食塩水で洗浄した。無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]酢酸(0.70g)を無色粉末として得た。
(2) Synthesis of N- (1-benzylpiperidin-4-yl) -2- [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] acetamide obtained in Example 31 (1) A solution of silver (I) benzoate (0.06 g) in triethylamine (0.6 mL) was added to a solution of the compound (0.88 g) in methanol (3.3 mL) at room temperature, and the mixture was stirred at the same temperature for 30 minutes. The reaction mixture was filtered through celite and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (30% ethyl acetate-hexane) to give [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl]. Methyl acetate (0.81 g) was obtained as a colorless oil.
To a 50% methanol-water (4 mL) solution of the compound obtained here (0.76 g), lithium hydroxide monohydrate (0.37 g) was added at room temperature, and the mixture was stirred at the same temperature for 4 hours. The reaction mixture was concentrated, ethyl acetate was added, and the mixture was extracted with saturated aqueous sodium hydrogen carbonate. The aqueous layer was acidified with 2N hydrochloric acid, extracted with ethyl acetate, and washed with saturated brine. After drying over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure to obtain [trans-2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-yl] acetic acid (0.70 g) as a colorless powder.
ここで得られた化合物(0.20g)、4−アミノ−1−ベンジルピペリジン(0.20mL)、1−ヒドロキシベンゾトリアゾール(0.18g)のクロロホルム(1.6mL)溶液に1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(0.23g)を加え室温下4時間攪拌した。反応液に飽和重曹水を加え、クロロホルムで3回抽出した。無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、残留物をシリカゲルカラムクロマトグラフィー(13%ヘキサン−酢酸エチル)で精製し、N−(1−ベンジルピペリジン−4−イル)−2−[トランス−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−イル]アセトアミド(0.22g)を無色粉末として得た。 To a solution of the compound obtained here (0.20 g), 4-amino-1-benzylpiperidine (0.20 mL) and 1-hydroxybenzotriazole (0.18 g) in chloroform (1.6 mL) was added 1-ethyl-3. -(3-Dimethylaminopropyl) carbodiimide hydrochloride (0.23 g) was added and stirred at room temperature for 4 hours. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted 3 times with chloroform. After drying over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (13% hexane-ethyl acetate), and N- (1-benzylpiperidin-4-yl) -2- [trans 2- (4-Chlorophenyl) -5-oxotetrahydrofuran-3-yl] acetamide (0.22 g) was obtained as a colorless powder.
(実施例32)
トランス−1−ベンジルピペリジン−4−イル 2−(4−クロロフェニル)−テトラヒドロ−5−フラノン−3−カルボキシレートの合成
参考例1(3)で得られた化合物(0.29g)のクロロホルム(15mL)溶液に、1−ベンジルピペリジン−4−オール(0.19g)、1−ヒドロキシベンゾトリアゾール1水和物(0.23g)を室温で加え、N−(3−ジメチルアミノプロピル)−N'−エチルカルボジイミド塩酸塩(0.29g)を添加した。室温下一晩撹拌し、反応液に飽和重曹水を加え、クロロホルムで3回抽出した。有機層を硫酸マグネシウムで乾燥後、減圧下溶媒留去し、残留物をシリカゲルカラムクロマトグラフィー(2.5%メタノール−クロロホルム)で精製し、粗生成物(0.19g)を得た。これを再度シリカゲルカラムクロマトグラフィー(2%メタノール−クロロホルム)で精製し、トランス−1−ベンジルピペリジン−4−イル 2−(4−クロロフェニル)−テトラヒドロ−5−フラノン−3−カルボキシレートの黄色油状物質(0.15g)を得た。
(Example 32)
Synthesis of trans-1-benzylpiperidin-4-yl 2- (4-chlorophenyl) -tetrahydro-5-furanone-3-carboxylate Chloroform (15 mL) of the compound (0.29 g) obtained in Reference Example 1 (3) ) 1-Benzylpiperidin-4-ol (0.19 g) and 1-hydroxybenzotriazole monohydrate (0.23 g) were added to the solution at room temperature, and N- (3-dimethylaminopropyl) -N′- Ethyl carbodiimide hydrochloride (0.29 g) was added. The mixture was stirred overnight at room temperature, saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted 3 times with chloroform. The organic layer was dried over magnesium sulfate, the solvent was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography (2.5% methanol-chloroform) to obtain a crude product (0.19 g). This was purified again by silica gel column chromatography (2% methanol-chloroform), and trans-1-benzylpiperidin-4-yl 2- (4-chlorophenyl) -tetrahydro-5-furanone-3-carboxylate as a yellow oily substance (0.15 g) was obtained.
実施例33、34の化合物は、実施例32に示した方法により参考例1(4)で得られた化合物と対応するアルコール化合物と縮合することにより合成した。 The compounds of Examples 33 and 34 were synthesized by condensing the compound obtained in Reference Example 1 (4) with the corresponding alcohol compound by the method shown in Example 32.
(実施例35)
トランス−1−ベンジルピペリジン−4−イル 2−(4−シアノフェニル)−テトラヒドロ−5−フラノン−3−カルボキシレートの合成
4−シアノベンズアルデヒドを原料として、参考例1(1)〜参考例1(4)に示した方法に続き、実施例32に示した方法により合成し、表題化合物トランス−1−ベンジルピペリジン−4−イル 2−(4−シアノフェニル)−テトラヒドロ−5−フラノン−3−カルボキシレートを得た。
(Example 35)
Synthesis of trans-1-benzylpiperidin-4-yl 2- (4-cyanophenyl) -tetrahydro-5-furanone-3-carboxylate Using 4-cyanobenzaldehyde as a raw material, Reference Example 1 (1) to Reference Example 1 ( Following the method shown in 4), the title compound trans-1-benzylpiperidin-4-yl 2- (4-cyanophenyl) -tetrahydro-5-furanone-3-carboxyl was synthesized by the method shown in Example 32. Got the rate.
(実施例36)
(−)−トランス−2−(4−クロロフェニル)−5−オキソ−N−[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル]テトラヒドロフラン−3−カルボキサミド マレイン酸塩の合成
(1)トランス−2−(4−クロロフェニル)−5−オキソ−N−[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル]テトラヒドロフラン−3−カルボキサミドの合成
参考例4で得られた化合物(23.0g)に飽和重曹水を加え、クロロホルムで3回抽出した。無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、1−(2,3,5−トリフルオロベンジル)ピペリジン−4−アミン(20.0g)を無色油状物として得た。
ここで得られた化合物(20.0g)、参考例1(5)で得られた化合物(18.0g)、1−ヒドロキシベンゾトリアゾール(13.0g)のクロロホルム(100mL)溶液に1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(16.0g)を加え、室温下1時間攪拌した。反応液に飽和重曹水を加え、クロロホルムで2回抽出した。無水硫酸ナトリウムで乾燥後、減圧下溶媒留去し、残留物をシリカゲルカラムクロマトグラフィー(5%メタノール−クロロホルム)で精製し、トランス−2−(4−クロロフェニル)−5−オキソ−N−[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル]テトラヒドロフラン−3−カルボキサミド(22.0g)を無色油状物として得た。
1HNMR (300 MHz, CDCl3) δ 1.23-1.49 (m, 2H), 1.79-1.95 (m, 2H), 2.10-2.26 (m, 2H), 2.69-2.95 (m, 3H), 3.09-3.24 (m, 1H), 3.55 (s, 2H), 3.72-3.90 (m, 1H), 5.27 (d, J =7.8Hz, 1H), 5.47 (d, J =8.6Hz, 1H), 6.76-6.96 (m, 2H), 7.18-7.43 (m, 4H)
(Example 36)
Synthesis of (−)-trans-2- (4-chlorophenyl) -5-oxo-N- [1- (2,3,5-trifluorobenzyl) piperidin-4-yl] tetrahydrofuran-3-carboxamide maleate (1) Synthesis of trans-2- (4-chlorophenyl) -5-oxo-N- [1- (2,3,5-trifluorobenzyl) piperidin-4-yl] tetrahydrofuran-3-carboxamide In Reference Example 4 To the obtained compound (23.0 g) was added saturated aqueous sodium hydrogen carbonate, and the mixture was extracted 3 times with chloroform. After drying over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure to obtain 1- (2,3,5-trifluorobenzyl) piperidin-4-amine (20.0 g) as a colorless oil.
To a solution of the compound obtained here (20.0 g), the compound obtained in Reference Example 1 (5) (18.0 g), and 1-hydroxybenzotriazole (13.0 g) in chloroform (100 mL), 1-ethyl- 3- (3-Dimethylaminopropyl) carbodiimide hydrochloride (16.0 g) was added, and the mixture was stirred at room temperature for 1 hour. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted twice with chloroform. After drying over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (5% methanol-chloroform), and trans-2- (4-chlorophenyl) -5-oxo-N- [1 -(2,3,5-trifluorobenzyl) piperidin-4-yl] tetrahydrofuran-3-carboxamide (22.0 g) was obtained as a colorless oil.
1 HNMR (300 MHz, CDCl 3 ) δ 1.23-1.49 (m, 2H), 1.79-1.95 (m, 2H), 2.10-2.26 (m, 2H), 2.69-2.95 (m, 3H), 3.09-3.24 ( m, 1H), 3.55 (s, 2H), 3.72-3.90 (m, 1H), 5.27 (d, J = 7.8Hz, 1H), 5.47 (d, J = 8.6Hz, 1H), 6.76-6.96 (m , 2H), 7.18-7.43 (m, 4H)
(2)(−)−トランス−2−(4−クロロフェニル)−5−オキソ−N−[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル]テトラヒドロフラン−3−カルボキサミド マレイン酸塩の合成
実施例36(1)で得られた化合物(22.0g)の酢酸エチル(350mL)溶液にマレイン酸(5.5g)の酢酸エチル(188mL)溶液を加え、室温下30分間攪拌後、氷冷下で1時間攪拌した。析出した結晶を減圧乾燥し、トランス−2−(4−クロロフェニル)−5−オキソ−N−[1−(2,3,5−トリフルオロベンジル)ピペリジン−4−イル]テトラヒドロフラン−3−カルボキサミド マレイン酸塩(21.0g)を無色粉末として得た。
[α]D 20 = -28.6 (c 1.00, MeOH)
(2) (−)-trans-2- (4-chlorophenyl) -5-oxo-N- [1- (2,3,5-trifluorobenzyl) piperidin-4-yl] tetrahydrofuran-3-carboxamide maleic acid Synthesis of salt To a solution of the compound obtained in Example 36 (1) (22.0 g) in ethyl acetate (350 mL) was added maleic acid (5.5 g) in ethyl acetate (188 mL), and the mixture was stirred at room temperature for 30 minutes. The mixture was stirred for 1 hour under ice cooling. The precipitated crystals were dried under reduced pressure, and trans-2- (4-chlorophenyl) -5-oxo-N- [1- (2,3,5-trifluorobenzyl) piperidin-4-yl] tetrahydrofuran-3-carboxamide malein The acid salt (21.0 g) was obtained as a colorless powder.
[Α] D 20 = -28.6 (c 1.00, MeOH)
実施例37〜46の化合物は、参考例1(5)で得られた化合物を原料として、実施例36に示した方法により対応するアミン化合物と縮合し得た。 The compounds of Examples 37 to 46 could be condensed with the corresponding amine compounds by the method shown in Example 36 using the compound obtained in Reference Example 1 (5) as a raw material.
実施例47〜53の化合物は、参考例2で得られた化合物を原料として、実施例36に示した方法により対応するアミン化合物と縮合し得た。 The compounds of Examples 47 to 53 could be condensed with the corresponding amine compounds by the method shown in Example 36 using the compound obtained in Reference Example 2 as a raw material.
実施例54〜61の化合物は、参考例3で得られた化合物を原料として、実施例36に示した方法により対応するアミン化合物と縮合し得た。 The compounds of Examples 54 to 61 could be condensed with the corresponding amine compounds by the method shown in Example 36 using the compound obtained in Reference Example 3 as a starting material.
(実施例62)トランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボキサミド、及び(実施例63)シス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボキサミドの合成
参考例1(1)で得られた化合物(1.50g)のN,N−ジメチルホルムアミド(15mL)溶液に4−アミノ−1−ベンジルピペリジン(1.20g)、1−ヒドロキシベンゾトリアゾール(2.00g)、1−エチル−3−(3−ジメチルアミノプロピル)カルボジイミド塩酸塩(2.50g)を加え、室温下18時間攪拌した。反応液に飽和重曹水を加え、酢酸エチルを用いて抽出した。有機層を飽和食塩水で洗浄、無水硫酸マグネシウムで乾燥後、溶媒を減圧留去した。得られた残留物をシリカゲルカラムクロマトグラフィー(13%酢酸エチル−ヘキサン〜10%メタノール−クロロホルム)で分離精製し、13%酢酸エチル−ヘキサン溶出部より実施例62のトランス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボキサミド(0.77g)を無色粉末として得、また10%メタノール−クロロホルム溶出部より実施例63のシス−N−(1−ベンジルピペリジン−4−イル)−2−(4−クロロフェニル)−5−オキソテトラヒドロフラン−3−カルボキサミド(0.94g)を淡黄色粉末として得た。
実施例1〜63の化合物の構造とNMRデータを下記表1に示す。
実施例64〜399の化合物は、参考例1(1)で得られた化合物、あるいは参考例1(1)において対応する置換ベンズアルデヒドを原料として参考例1(1)に示した方法により得られた化合物から、実施例62及び実施例63に示した方法により合成した。
実施例64〜327の化合物の構造とNMRデータも下記表1に示す。
実施例328〜392の化合物に対しては、マイクロマス(Micromass)社製のPlatformLC型質量分析計を用いて大気圧化学イオン化(APCI:Atmospheric pressure chemical ionization)を測定した。実施例328〜392の化合物の構造とAPCIの測定値を下記表2に示す。また、実施例393〜399の化合物に対しては、同質量分析計を用いてエレクトロスプレーイオン化(ESI:Electrospray ionization) を測定した。実施例393〜399の化合物の構造とESIの測定値を下記表3に示す。
Example 62 trans-N- (1-Benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxamide, and (Example 63) cis-N- (1- Synthesis of benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxamide N, N-dimethylformamide of the compound (1.50 g) obtained in Reference Example 1 (1) ( 15 mL) in solution 4-amino-1-benzylpiperidine (1.20 g), 1-hydroxybenzotriazole (2.00 g), 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride (2.50 g) And stirred at room temperature for 18 hours. Saturated aqueous sodium hydrogen carbonate was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was separated and purified by silica gel column chromatography (13% ethyl acetate-hexane-10% methanol-chloroform), and trans-N- (1-benzyl) of Example 62 was eluted from the 13% ethyl acetate-hexane eluate. Piperidin-4-yl) -2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxamide (0.77 g) was obtained as a colorless powder. From the eluate of 10% methanol-chloroform, the cis-N of Example 63 was obtained. -(1-Benzylpiperidin-4-yl) -2- (4-chlorophenyl) -5-oxotetrahydrofuran-3-carboxamide (0.94 g) was obtained as a pale yellow powder.
The structures and NMR data of the compounds of Examples 1 to 63 are shown in Table 1 below.
The compounds of Examples 64-399 were obtained by the method shown in Reference Example 1 (1) using the compound obtained in Reference Example 1 (1) or the corresponding substituted benzaldehyde in Reference Example 1 (1) as a raw material. The compound was synthesized from the compound by the method shown in Example 62 and Example 63.
The structures and NMR data of the compounds of Examples 64-327 are also shown in Table 1 below.
For the compounds of Examples 328 to 392, atmospheric pressure chemical ionization (APCI) was measured using a PlatformLC mass spectrometer manufactured by Micromass. The structures of the compounds of Examples 328 to 392 and the measured values of APCI are shown in Table 2 below. For the compounds of Examples 393 to 399, electrospray ionization (ESI) was measured using the same mass spectrometer. The structures of the compounds of Examples 393 to 399 and the measured values of ESI are shown in Table 3 below.
(試験例1)
ヒト由来FATP4に対する脂肪酸吸収機能阻害作用(アンタゴニスト作用)
試験化合物のFATP4脂肪酸吸収阻害試験は、Andreas Stahlらの方法(Molecular cell 1999 Sep;4:299−308)を一部改変して実施した。
ヒト由来FATP4に対する脂肪酸吸収機能調節作用(アンタゴニスト作用)の決定には、ヒト由来FATP4を安定発現したHEK293細胞株を用いた。特に記載がない限り、これらのHEK293細胞は10%FBS、1%非必須アミノ酸(NEAA;大日本製薬)を含むMEM培地(Gibco)を用いて培養した。
試験は平底の96ウェルPoly−D−Lysine Coated Microplates(Corning)を用いて行った。アッセイ2日前に、ほぼコンフルエントになるまで培養した細胞をPBSを用いてリンスした後、トリプシン(Gibco)を用いて剥がし、遠心操作にて回収した。得られた細胞の数を測定し、3×104 cells / wellとなるようにプレートの各ウェルに細胞を播種した。CO2培養器にて2日間培養後、細胞試験化合物のジメチルスルホキシド(DMSO)溶液ならびに、コントロールとしてDMSOを、DMSO終濃度0.5%になるように添加した。さらに、それぞれ終濃度20μMになるようにBODIPY(4,4−difluoro−5−methyl−4−bora−3a,4a− diaza−s−indacene−3−dodecanoic acid;Funakoshi)を、0.1%となるようにBSA(Sigma)を添加して、取り込み反応開始した。反応は室温で行った。
35分後、0.1%BSAを含んだPBSで各ウェルを3回洗浄した。その後、各ウェルに0.1%SDSを含んだ0.5N NaOHを添加して1時間振とうして細胞を溶解した。この際の細胞内脂肪酸濃度をARVOで測定(Ex=485nm,Em510nm)した。この結果により、各化合物のアンタゴニスト活性を、DMSOのみを添加したウェル(対照群)の脂肪酸取り込み量を100%として、細胞試験化合物存在化で50%取り込み量が阻害される化合物濃度(IC50値)として算出した。
本発明の化合物のIC50値は100μMから10nMであり、下記表4に代表例を示す。
Fatty acid absorption function inhibitory action (antagonist action) on human FATP4
The FATP4 fatty acid absorption inhibition test of the test compound was performed by partially modifying the method of Andrew Stahl et al. (Molecular cell 1999 Sep; 4: 299-308).
HEK293 cell line stably expressing human-derived FATP4 was used for determination of fatty acid absorption function regulating action (antagonist action) on human-derived FATP4. Unless otherwise stated, these HEK293 cells were cultured in MEM medium (Gibco) containing 10% FBS, 1% non-essential amino acids (NEAA; Dainippon Pharmaceutical).
The test was conducted using a flat-bottom 96-well Poly-D-Lysine Coated Microplates (Corning). Two days before the assay, the cells cultured until they became almost confluent were rinsed with PBS, then detached with trypsin (Gibco), and collected by centrifugation. The number of the obtained cells was measured, and the cells were seeded in each well of the plate so as to be 3 × 10 4 cells / well. After culturing in a CO 2 incubator for 2 days, a dimethyl sulfoxide (DMSO) solution of a cell test compound and DMSO as a control were added to a final DMSO concentration of 0.5%. Further, BODIPY (4,4-difluoro-5-methyl-4-bora-3a, 4a-diaza-s-indacene-3-dodecanoic acid; Funakoshi) was adjusted to 0.1% to a final concentration of 20 μM. BSA (Sigma) was added so that the uptake reaction was started. The reaction was performed at room temperature.
After 35 minutes, each well was washed three times with PBS containing 0.1% BSA. Thereafter, 0.5N NaOH containing 0.1% SDS was added to each well and shaken for 1 hour to lyse the cells. The intracellular fatty acid concentration at this time was measured by ARVO (Ex = 485 nm, Em510 nm). Based on this result, the antagonist activity of each compound was determined based on the compound concentration (IC 50 value) at which 50% uptake was inhibited by the presence of the cell test compound, with the fatty acid uptake in the well (control group) added with DMSO alone being 100%. ).
IC 50 values of the compounds of the present invention are 100 μM to 10 nM, and typical examples are shown in Table 4 below.
(試験例2)
脂肪酸吸収阻害作用
本発明化合物の脂肪酸吸収阻害作用を、C57/BL 6Nマウスを用いて検討した。雄性C57/BL 6Nマウス(8週齢、日本チャールスリバー)に化合物(15mg/kg)と14C標識脂肪酸(ステアリン酸:室町薬品)を終濃度60μMとなるように含んだ20mM グリコケノデオキシコール酸ナトリウム(GCDC)溶液を連続的に強制経口投与(5ml/kg)した。投与30分後にイソプロパノール麻酔下にて大腿部を切断し、血液を300μL採取した後、セラクイック(アルフレッサ ファーマ)を用いて遠心分離後、血清を回収した。血清中の脂肪酸濃度を液体シンチレーションカウンターによって測定した。20mM GCDC溶液投与群(コントロール群)に対する脂肪酸濃度低下率を算出して、脂肪酸吸収阻害活性とした。実施例36の化合物は、37.4%の脂肪吸収阻害活性を示した。
(Test Example 2)
Fatty Acid Absorption Inhibitory Action The fatty acid absorption inhibitory action of the compound of the present invention was examined using C57 / BL 6N mice. Male C57 / BL 6N mice (8 weeks old, Charles River, Japan) containing 20 mM sodium glycochenodeoxycholate containing compound (15 mg / kg) and 14 C-labeled fatty acid (stearic acid: Muromachi Yakuhin) to a final concentration of 60 μM GCDC) solution was continuously administered by oral gavage (5 ml / kg). Thirty minutes after administration, the thigh was cut under anesthesia with isopropanol, and 300 μL of blood was collected, followed by centrifugation using Ceraquik (Alfresa Pharma), and serum was collected. Serum fatty acid concentration was measured with a liquid scintillation counter. The fatty acid concentration decrease rate relative to the 20 mM GCDC solution administration group (control group) was calculated and used as the fatty acid absorption inhibitory activity. The compound of Example 36 showed 37.4% fat absorption inhibitory activity.
本発明の化合物は、優れたFATP4阻害作用を有し、肥満、肥満症、高脂血症、抗TG血症、脂質代謝異常疾患、糖尿病、動脈硬化症、又は、肥満に起因する高脂血症、抗TG血症、脂質代謝異常疾患、糖尿病、動脈硬化症、もしくは、高血圧症の治療剤もしくは予防剤として有用である。 The compound of the present invention has an excellent FATP4 inhibitory action, and obesity, obesity, hyperlipidemia, anti-TGemia, dyslipidemia, diabetes, arteriosclerosis, or hyperlipidemia caused by obesity It is useful as a therapeutic or prophylactic agent for symptom, anti-TG disease, dyslipidemia, diabetes, arteriosclerosis, or hypertension.
Claims (3)
Aは−CO−又は−CH2−を示し、
Xは−CH2−、−O−又は−NH−を示し、
Y及びWは同一又は異なって、
Zは−CH2−、−O−又は−NH−を示し、
Arは
R2、R3及びR4は同一又は異なって水素原子、ハロゲン原子で置換されても良い炭素数1〜12のアルキル基、ハロゲン原子で置換されても良い炭素数1〜10のアルコキシ基、炭素数1〜6のアルキルチオ基、ハロゲン原子、ニトロ基、シアノ基、メトキシカルボニル基、メチルスルフィニル基、メチルスルホニル基、ジメチルアミノスルホニル基又はトリフルオロメチルスルホニルオキシ基を示し、
R5はハロゲン原子、ニトロ基又はシアノ基を示し、
R1は−CO−NR6R7、−CO2−R8、−NHCO−R9、
R6は−(CH2)n−R14、炭素数3〜8のシクロアルキル基、炭素数2〜18のアルケニル基、
R7は水素原子、−(CH2)n−R19又はアリル基を示し、
R8は
R9は
R10、R11及びR12は同一又は異なって、水素原子、塩素原子、メチル基又はメトキシ基を示し、
R13は炭素数1〜12のアルキル基、ベンジルオキシカルボニル基、
R14は水素原子、ハロゲン原子、炭素数1〜10のアルコキシ基、炭素数1〜6のアルキルチオ基、炭素数3〜8のシクロアルキル基、炭素数4〜8のシクロアルケニル基、メトキシカルボニル基、ベンジルオキシカルボニル基、
R15、R16及びR17は同一又は異なって、水素原子、ハロゲン原子、炭素数1〜12のアルキル基、炭素数1〜10のアルコキシ基又は炭素数1〜6のアルキルチオ基を示し、
R18はフェニル基、エトキシカルボニル基、フェネチル基、
R19は水素原子、水酸基、カルバモイル基、メチルアミノカルボニル基、シアノ基、カルボキシル基、メトキシカルボニル基又はアリル基を示し、
R20、R21及びR22は同一又は異なって、水素原子、ハロゲン原子、ハロゲン原子で置換されても良い炭素数1〜12のアルキル基、ハロゲン原子で置換されても良い炭素数1〜10のアルコキシ基、炭素数1〜6のアルキルチオ基、フェニル基又はジメチルアミノ基を示し、
R23はハロゲン原子、炭素数1〜12のアルキル基又は炭素数1〜6のアルキルチオ基を示し、
R24、R25及びR26は同一又は異なって、ハロゲン原子、炭素数1〜12のアルキル基、炭素数1〜10のアルコキシ基又はニトロ基を示し、
R27、R28及びR29は同一又は異なって、水素原子、ハロゲン原子、炭素数1〜10のアルキル基、炭素数1〜10のアルコキシ基又はシアノ基を示し、
nは1〜20の整数を示す。 A hetero 5-membered ring compound represented by the following formula (I) or a pharmaceutically acceptable salt thereof.
A represents —CO— or —CH 2 —;
X represents —CH 2 —, —O— or —NH—;
Y and W are the same or different,
Z represents —CH 2 —, —O— or —NH—;
Ar is
R 2 , R 3 and R 4 are the same or different and are a hydrogen atom, an alkyl group having 1 to 12 carbon atoms which may be substituted with a halogen atom, an alkoxy group having 1 to 10 carbon atoms which may be substituted with a halogen atom, An alkylthio group having 1 to 6 carbon atoms, a halogen atom, a nitro group, a cyano group, a methoxycarbonyl group, a methylsulfinyl group, a methylsulfonyl group, a dimethylaminosulfonyl group or a trifluoromethylsulfonyloxy group;
R 5 represents a halogen atom, a nitro group or a cyano group,
R 1 is —CO—NR 6 R 7 , —CO 2 —R 8 , —NHCO—R 9 ,
R 6 is — (CH 2 ) n—R 14 , a cycloalkyl group having 3 to 8 carbon atoms, an alkenyl group having 2 to 18 carbon atoms,
R 7 represents a hydrogen atom, — (CH 2 ) n—R 19 or an allyl group,
R 8 is
R 9 is
R 10 , R 11 and R 12 are the same or different and each represents a hydrogen atom, a chlorine atom, a methyl group or a methoxy group,
R 13 represents an alkyl group having 1 to 12 carbon atoms, a benzyloxycarbonyl group,
R 14 is a hydrogen atom, a halogen atom, an alkoxy group having 1 to 10 carbon atoms, an alkylthio group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, a cycloalkenyl group having 4 to 8 carbon atoms, or a methoxycarbonyl group. Benzyloxycarbonyl group,
R 15 , R 16 and R 17 are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or an alkylthio group having 1 to 6 carbon atoms,
R 18 is a phenyl group, an ethoxycarbonyl group, a phenethyl group,
R 19 represents a hydrogen atom, a hydroxyl group, a carbamoyl group, a methylaminocarbonyl group, a cyano group, a carboxyl group, a methoxycarbonyl group or an allyl group,
R 20 , R 21 and R 22 are the same or different and are a hydrogen atom, a halogen atom, an alkyl group having 1 to 12 carbon atoms which may be substituted with a halogen atom, or 1 to 10 carbon atoms which may be substituted with a halogen atom. An alkoxy group, an alkylthio group having 1 to 6 carbon atoms, a phenyl group or a dimethylamino group,
R 23 represents a halogen atom, an alkyl group having 1 to 12 carbon atoms or an alkylthio group having 1 to 6 carbon atoms,
R 24 , R 25 and R 26 are the same or different and each represents a halogen atom, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a nitro group,
R 27 , R 28 and R 29 are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a cyano group,
n shows the integer of 1-20.
ただし、式(II)中、
R18は前記請求項1のR18と同意義である。Arは
ただし、R2、R3及びR4は前記請求項1のR2、R3及びR4とそれぞれ同意義である。 A hetero 5-membered ring compound represented by the following formula (II) or a pharmaceutically acceptable salt thereof.
However, in formula (II),
R 18 has the same meaning as R 18 in claim 1. Ar is
However, R 2, R 3 and R 4 are as defined respectively R 2, R 3 and R 4 of claim 1.
式(III)中、R13及びArは前記請求項1のR13及びArとそれぞれ同意義である。 A hetero 5-membered ring compound represented by the following formula (III) or a pharmaceutically acceptable salt thereof.
In formula (III), R 13 and Ar have the same meanings as R 13 and Ar in claim 1, respectively.
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CN101284815B (en) * | 2008-05-16 | 2011-04-13 | 南京工业大学 | Pyrazoleoxy acetic acid compounds, preparation method and use |
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2009
- 2009-04-10 JP JP2009095659A patent/JP2012136437A/en active Pending
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2010
- 2010-04-08 WO PCT/JP2010/056379 patent/WO2010117040A1/en active Application Filing
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