TWI624466B - 苯并噻吩化合物 - Google Patents
苯并噻吩化合物 Download PDFInfo
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- TWI624466B TWI624466B TW103119735A TW103119735A TWI624466B TW I624466 B TWI624466 B TW I624466B TW 103119735 A TW103119735 A TW 103119735A TW 103119735 A TW103119735 A TW 103119735A TW I624466 B TWI624466 B TW I624466B
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- Prior art keywords
- compound
- pain
- salt
- methyl
- chloro
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- -1 Benzothiophene compound Chemical class 0.000 title claims abstract description 41
- FCEHBMOGCRZNNI-UHFFFAOYSA-N thianaphthalene Natural products C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 title abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 132
- 208000002193 Pain Diseases 0.000 claims abstract description 48
- 230000036407 pain Effects 0.000 claims abstract description 48
- 206010003246 arthritis Diseases 0.000 claims abstract description 32
- 206010065390 Inflammatory pain Diseases 0.000 claims abstract description 27
- 208000004296 neuralgia Diseases 0.000 claims abstract description 25
- 208000021722 neuropathic pain Diseases 0.000 claims abstract description 25
- 208000009935 visceral pain Diseases 0.000 claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims description 66
- 238000004519 manufacturing process Methods 0.000 claims description 42
- 125000000217 alkyl group Chemical group 0.000 claims description 31
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 25
- 229910052736 halogen Inorganic materials 0.000 claims description 21
- 150000002367 halogens Chemical class 0.000 claims description 21
- 125000006311 cyclobutyl amino group Chemical group [H]N(*)C1([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 claims description 11
- 125000004573 morpholin-4-yl group Chemical group N1(CCOCC1)* 0.000 claims description 11
- 239000008194 pharmaceutical composition Substances 0.000 claims description 11
- 125000006552 (C3-C8) cycloalkyl group Chemical group 0.000 claims description 10
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 7
- 201000010099 disease Diseases 0.000 claims description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 6
- 239000005711 Benzoic acid Substances 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- 235000010233 benzoic acid Nutrition 0.000 claims description 4
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 4
- KZZKOVLJUKWSKX-UHFFFAOYSA-N cyclobutanamine Chemical compound NC1CCC1 KZZKOVLJUKWSKX-UHFFFAOYSA-N 0.000 claims description 4
- 125000006318 tert-butyl amino group Chemical group [H]N(*)C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- IOWRHVVSRLGDKK-LJQANCHMSA-N 5-(6-chloro-2-methyl-1-benzothiophen-3-yl)-2-[(2r)-2-[(cyclobutylamino)methyl]morpholin-4-yl]benzoic acid Chemical compound C([C@H]1OCCN(C1)C1=CC=C(C=C1C(O)=O)C=1C2=CC=C(Cl)C=C2SC=1C)NC1CCC1 IOWRHVVSRLGDKK-LJQANCHMSA-N 0.000 claims description 2
- AKAPRLWYPCCXRD-QGZVFWFLSA-N 5-(6-chloro-5-fluoro-2-methyl-1-benzothiophen-3-yl)-2-[(2R)-2-[(cyclobutylamino)methyl]morpholin-4-yl]benzoic acid Chemical compound Cc1sc2cc(Cl)c(F)cc2c1-c1ccc(N2CCO[C@H](CNC3CCC3)C2)c(c1)C(O)=O AKAPRLWYPCCXRD-QGZVFWFLSA-N 0.000 claims description 2
- CGAJHTSRDXRFJT-MRXNPFEDSA-N 5-[5-chloro-6-(trifluoromethyl)-1-benzothiophen-3-yl]-2-[(2r)-2-[(cyclobutylamino)methyl]morpholin-4-yl]benzoic acid Chemical compound C([C@H]1OCCN(C1)C1=CC=C(C=C1C(=O)O)C=1C2=CC(Cl)=C(C=C2SC=1)C(F)(F)F)NC1CCC1 CGAJHTSRDXRFJT-MRXNPFEDSA-N 0.000 claims description 2
- 108010045489 Calcium-Activated Potassium Channels Proteins 0.000 claims description 2
- 102000005702 Calcium-Activated Potassium Channels Human genes 0.000 claims description 2
- 239000004036 potassium channel stimulating agent Substances 0.000 claims description 2
- 230000001225 therapeutic effect Effects 0.000 claims description 2
- BIACSKOCQXVCTM-QGZVFWFLSA-N 5-(6-chloro-2-fluoro-1-benzothiophen-3-yl)-2-[(2r)-2-[(cyclobutylamino)methyl]morpholin-4-yl]benzoic acid Chemical compound C([C@H]1OCCN(C1)C1=CC=C(C=C1C(=O)O)C=1C2=CC=C(Cl)C=C2SC=1F)NC1CCC1 BIACSKOCQXVCTM-QGZVFWFLSA-N 0.000 claims 1
- 108091006146 Channels Proteins 0.000 abstract description 28
- 239000003814 drug Substances 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 20
- 239000012190 activator Substances 0.000 abstract description 12
- 230000003449 preventive effect Effects 0.000 abstract description 9
- 229940124597 therapeutic agent Drugs 0.000 abstract description 9
- 208000001640 Fibromyalgia Diseases 0.000 abstract description 5
- 230000004913 activation Effects 0.000 abstract description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 78
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 73
- 239000000203 mixture Substances 0.000 description 65
- 238000012360 testing method Methods 0.000 description 46
- 239000011541 reaction mixture Substances 0.000 description 41
- 230000002829 reductive effect Effects 0.000 description 38
- 235000019439 ethyl acetate Nutrition 0.000 description 36
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 33
- 239000011734 sodium Substances 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 27
- 239000012044 organic layer Substances 0.000 description 26
- 239000002904 solvent Substances 0.000 description 26
- QPJVMBTYPHYUOC-UHFFFAOYSA-N Methyl benzoate Natural products COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 23
- 239000012267 brine Substances 0.000 description 22
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 22
- 239000012156 elution solvent Substances 0.000 description 21
- 239000000741 silica gel Substances 0.000 description 21
- 229910002027 silica gel Inorganic materials 0.000 description 21
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 18
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 17
- 239000000243 solution Substances 0.000 description 16
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 15
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 13
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 13
- 241000700159 Rattus Species 0.000 description 13
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 13
- 229940079593 drug Drugs 0.000 description 13
- 239000000126 substance Substances 0.000 description 13
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 239000007864 aqueous solution Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 11
- 210000004027 cell Anatomy 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- XHFLOLLMZOTPSM-UHFFFAOYSA-M sodium;hydrogen carbonate;hydrate Chemical class [OH-].[Na+].OC(O)=O XHFLOLLMZOTPSM-UHFFFAOYSA-M 0.000 description 9
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 8
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229940095102 methyl benzoate Drugs 0.000 description 8
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 239000012300 argon atmosphere Substances 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 210000003141 lower extremity Anatomy 0.000 description 6
- 239000012046 mixed solvent Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- 125000006239 protecting group Chemical group 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 5
- 208000004998 Abdominal Pain Diseases 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- 238000000692 Student's t-test Methods 0.000 description 5
- 239000004480 active ingredient Substances 0.000 description 5
- 125000002947 alkylene group Chemical group 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000012359 Methanesulfonyl chloride Substances 0.000 description 4
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 4
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 4
- 235000011054 acetic acid Nutrition 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- JDNTWHVOXJZDSN-UHFFFAOYSA-N iodoacetic acid Chemical compound OC(=O)CI JDNTWHVOXJZDSN-UHFFFAOYSA-N 0.000 description 4
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 4
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 4
- NHDIQVFFNDKAQU-UHFFFAOYSA-N tripropan-2-yl borate Chemical compound CC(C)OB(OC(C)C)OC(C)C NHDIQVFFNDKAQU-UHFFFAOYSA-N 0.000 description 4
- NVSVCEJKKYMAKI-UHFFFAOYSA-N (6-chloro-2-methyl-1-benzothiophen-3-yl)boronic acid Chemical compound Cc1sc2cc(Cl)ccc2c1B(O)O NVSVCEJKKYMAKI-UHFFFAOYSA-N 0.000 description 3
- KZPYGQFFRCFCPP-UHFFFAOYSA-N 1,1'-bis(diphenylphosphino)ferrocene Chemical compound [Fe+2].C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1 KZPYGQFFRCFCPP-UHFFFAOYSA-N 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- JKMHFZQWWAIEOD-UHFFFAOYSA-N 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid Chemical compound OCC[NH+]1CCN(CCS([O-])(=O)=O)CC1 JKMHFZQWWAIEOD-UHFFFAOYSA-N 0.000 description 3
- UMCMPZBLKLEWAF-BCTGSCMUSA-N 3-[(3-cholamidopropyl)dimethylammonio]propane-1-sulfonate Chemical compound 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)NCCC[N+](C)(C)CCCS([O-])(=O)=O)C)[C@@]2(C)[C@@H](O)C1 UMCMPZBLKLEWAF-BCTGSCMUSA-N 0.000 description 3
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 description 3
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- 208000009386 Experimental Arthritis Diseases 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 102000004257 Potassium Channel Human genes 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
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- 229910052786 argon Inorganic materials 0.000 description 3
- MUALRAIOVNYAIW-UHFFFAOYSA-N binap Chemical compound C1=CC=CC=C1P(C=1C(=C2C=CC=CC2=CC=1)C=1C2=CC=CC=C2C=CC=1P(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 MUALRAIOVNYAIW-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
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- 125000004432 carbon atom Chemical group C* 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000112 colonic effect Effects 0.000 description 3
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 3
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- 239000000706 filtrate Substances 0.000 description 3
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- MEKOFIRRDATTAG-UHFFFAOYSA-N 2,2,5,8-tetramethyl-3,4-dihydrochromen-6-ol Chemical compound C1CC(C)(C)OC2=C1C(C)=C(O)C=C2C MEKOFIRRDATTAG-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
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Abstract
本發明之課題係提供作為IK1通道活化劑所有用的化合物。
其解決手段,本發明者等人,對IK1通道活化劑進行探討,確認了苯并噻吩化合物,對內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症顯示有用性,而完成了本發明。本發明化合物具有IK1通道活化作用,可使用作為內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症等之預防及/或治療藥。又,IK1通道活化劑可使用作為發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症之預防及/或治療藥。
Description
本發明係關於有用於作為醫藥組成物,特別是內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症(fibromyalgia)治療用醫藥組成物之有效成分的苯并噻吩化合物。又,關於含有中間傳導性鈣活化鉀通道活化劑(以下稱為IK1通道活化劑)之發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症之預防及/或治療藥。
藉由鈣所活化之鉀通道,係表現於各種動物細胞,對細胞之功能調節扮演重要的角色。亦即,藉由鈣所活化之鉀通道,於興奮性及非興奮性細胞中,係對細胞內鈣之上昇反應而開口,藉以進行鉀排出,誘導後過極化(afterhyperpolarization)而調節膜電位。藉由鈣所活化之鉀通道,係分類為高傳導性通道(BK)、低傳導性通道(SK)、中間傳導性通道(IK)。此等通道之中,關於IK通道,係觀察到於淋巴球、紅血球、纖維母細胞、
血管內皮細胞、氣管上皮、消化管、末梢神經、背根神經節等有表現,暗示了與此等為標的之疾病有所關聯(Current Medicinal Chemistry,2007年,vol.14,p.1437-1457)。又,報導了IK1/SK dual開口劑,會改善內臟過敏或排便異常(Gastroenterology,2008年,vol.134,Issue 4,Supplement 1,p.A-544,T1386),因而暗示了對過敏性腸症候群(IBS)之治療的可能性。
另一方面,IK1通道,係於感覺神經系統中可觀察到蛋白質表現,但雖有於神經病變性疼痛模式或發炎性疼痛模式中無表現量的變動之報導(Neuroscience,2005年,vol.131,p.161-175)、或IK1與PPAR agonist的鎮痛作用有所關聯的報導(The Journal of Pharmacology and Experimental Therapeutics,2006年,vol.319,p.1051-1061),但對於IK1通道與疼痛疾病的關聯性,尚未得到一定的見解。進一步地,並無使用病態動物模式,顯示IK1通道活化劑有效於發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症的報導。
提供醫藥,特別是有用於作為內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症之預防及/或治療用醫藥組成物的有效成分之新穎化合物。又,本發明關於含有IK1通道活化劑之發炎性疼
痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症的預防及/或治療藥。
本發明者等人針對IK1通道活化劑努力探討的結果,發現本發明之苯并噻吩化合物具有良好的作用,而完成本發明。
亦即,本發明係關於式(I)之化合物或其鹽、以及含有式(I)之化合物或其鹽、及製藥學上容許的賦形劑之醫藥組成物。
再者,若無特別記載,本說明書中之一化學式中的記號在其他化學式中亦被使用時,相同記號表示相同意義。
又,藉由使用病態模式動物之藥理試驗,發現IK1通道活化劑,係有效於發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症,而完成本發明。
亦即,本發明係關於含有IK1通道活化劑作為有效成分之發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症之預防及/或治療藥。
又,本發明係關於含有式(I)之化合物或其鹽之內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症治療用醫藥組成物。
再者,該醫藥組成物,係包含含有式(I)之化合物或其鹽之內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症治療藥。
進一步地,本發明關於(1)式(I)之化合物或其鹽之用途,其係用以製造內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼
痛、或肌纖維痛症之治療用醫藥組成物;(2)式(I)之化合物或其鹽之用途,其係用以治療內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症;(3)式(I)之化合物或其鹽,其係用以治療內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症;及(4)內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症之治療方法,其係由將式(I)之化合物或其鹽之有效量投與至對象所構成。
再者,「對象」係指以該預防或治療為必要之人類或其他動物,作為其一態樣,係以該預防或治療為必要之人類。
式(I)之化合物或其鹽,具有IK1通道活化作用,可使用作為內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症等之預防及/或治療藥。
又,IK1通道活化劑,可使用作為發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛或肌纖維痛症等之預防及/或治療藥。
以下,詳細說明本發明。
本說明書中,「低級烷基」,係直鏈或分枝狀之碳數1至6之烷基(亦稱為C1-6烷基。以下同樣方式地標記碳數),例如甲基、乙基、n-丙基、異丙基、n-丁基、異丁基、sec-丁基、tert-丁基、n-戊基、n-己基等。另一態樣係C1-4烷基、又另一態樣係甲基、乙基、n-丙基、或tert-丁基,又再另一態樣係甲基,進一步另一態樣係直鏈或分枝狀之碳數4之烷基(C4烷基),進一步又另一態樣係tert-丁基。
本說明書中,「鹵化低級烷基」係指經1至5個鹵素取代之低級烷基。另一態樣係經1至3個鹵素取代之低級烷基,又另一態樣係-CF3。
本說明書中,「低級伸烷基」,係指直鏈或分枝狀之C1-6之伸烷基,例如亞甲基、伸乙基、三亞甲基、四亞甲基、五亞甲基、六亞甲基、伸丙基、甲基亞甲基、乙基伸乙基、1,2-二甲基伸乙基、1,1,2,2-四甲基伸乙基等。另一態樣係C1-4伸烷基,又另一態樣係C4伸烷基,又再另一態樣係亞甲基。
本說明書中,「鹵素」意指F、Cl、Br、或I。
本說明書中,「環烷基」係指碳數3至10(C3-10)之飽和烴環基,亦可具有交聯。例如環丙基、環丁基、環戊基、環己基、環庚基、環辛基、金剛烷基等。另一態樣係碳數3至8之環烷基(C3-8環烷基),又另一
態樣係環丁基。
本發明之其一態樣如以下所示。
(1)R1為-H、-F或-CH3,另一態樣係R1為-H或低級烷基,又另一態樣係R1為-H或-CH3,又再另一態樣係R1為-H,又再更另一態樣係R1為鹵素,進一步另一態樣係R1為-F,進一步又另一態樣係R1為低級烷基,進一步又另一態樣係R1為-CH3之式(I)之化合物或其鹽。
(2)R2為-H或鹵素,另一態樣係R2為-H、-F或-Cl,又另一態樣係R2為-H,又再另一態樣係R2為鹵素,又再另一態樣係R2為-F或-Cl之式(I)之化合物或其鹽。
(3)R3為鹵素或鹵化低級烷基,另一態樣係R3為-F、-Cl或-CF3,又另一態樣係R3為鹵素,又再另一態樣係R3為-F或-Cl,又再更另一態樣係R3為-Cl,進一步另一態樣係R3為鹵化低級烷基,進一步又另一態樣係R3為-CF3之式(I)之化合物或其鹽。
(4)R4為-Lk-NH-R0之式(I)之化合物或其鹽。
(5)Lk為低級伸烷基,另一態樣係Lk為C1-4伸烷基,又另一態樣係Lk為-CH2-之式(I)之化合物或其鹽。
(6)R0為C4烷基、-C4伸烷基-OH或C3-8環烷基,另一態樣係R0為C3-8環烷基,又另一態樣係R0為環丁基,又再另一態樣係R0為C4烷基。又在更另一態樣係R0為tert-丁基之式(I)之化合物或其鹽。
(7)R5為-H或-CH3,另一態樣係R5為-H之式(I)之化合物或其鹽。
(8)X為-O-或-CH2-,另一態樣係X為-O-,又另一態樣係X為-CH2-之式(I)之化合物或其鹽。
(9)n為2之式(I)之化合物或其鹽。
(10)上述(1)~(9)所記載態樣中之二個以上的組合之式(I)之化合物或其鹽。
又,上述(10)之組合,具體而言例如可列舉以下態樣。
(11)R1為低級烷基,R2為-H,R3為鹵素,R4為-Lk-NH-R0,Lk為-CH2-,R0為C3-8環烷基,R5為-H,X為-O-,n為2之式(I)之化合物或其鹽。
(12)R1為-H,R2為鹵素,R3為鹵化低級烷基,R4為-Lk-NH-R0,Lk為-CH2-,R0為C3-8環烷基,R5為-H,X為-O-,n為2之式(I)之化合物或其鹽。
(13)R1為低級烷基,R2為鹵素,R3為鹵素,R4為-Lk-NH-R0,Lk為-CH2-,R0為C3-8環烷基,R5為-H,X為-O-,n為2之式(I)之化合物或其鹽。
又,上述(10)之組合之具體的另一態樣,可列舉以下之(a)至(f)。
(a)R4為-Lk-NH-R0之式(I)之化合物或其鹽。
(b)X為-O-或-CH2-之(a)之化合物或其鹽。
(c)n為2之(b)之化合物或其鹽。
(d)Lk為-CH2-之(c)之化合物或其鹽。
(e)R5為-H之(d)之化合物或其鹽。
(f)R0為C4烷基、-C4伸烷基-OH或C3-8環烷基之(e)
之化合物或其鹽。
包含於本發明中之具體的化合物的其一態樣,可列舉以下之化合物或其鹽。5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸、5-(6-氯-2-氟-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸、2-{(3R)-3-〔(tert-丁基胺基)甲基〕哌啶-1-基}-5-〔6-(三氟甲基)-1-苯并噻吩-3-基〕安息香酸、5-〔5-氯-6-(三氟甲基)-1-苯并噻吩-3-基〕-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸、或、5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸。
包含於本發明中之具體的化合物之另一態樣,可列舉以下之化合物或其鹽。5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸 氫溴酸鹽、5-(6-氯-2-氟-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸 鹽酸鹽、2-{(3R)-3-〔(tert-丁基胺基)甲基〕哌啶-1-基}-5-〔6-(三氟甲基)-1-苯并噻吩-3-基〕安息香酸 鹽酸鹽、5-〔5-氯-6-(三氟甲基)-1-苯并噻吩-3-基〕-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸鹽酸
鹽、或、5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸鹽酸鹽。
式(I)之化合物中,依取代基之種類,可存在幾何異構物。本說明書中,式(I)之化合物亦有僅記載異構物之其一形態者,但本發明一包含其以外之異構物,且亦包含經分離異構物者、或該等之混合物。
又,式(I)之化合物中,亦有具有不對稱碳原子或軸掌性的情況,可存在基於其之光學異構物。本發明亦包含式(I)之化合物之經分離光學異構物者、或該等之混合物。
進一步地,本發明亦包含式(I)所示之化合物在製藥學上容許的前驅藥。製藥學上容許的前驅藥,係指藉由加溶劑分解或在生理學的條件下,具有可轉換為胺基、羥基、羧基等之基的化合物。作為形成前驅藥之基,可列舉例如Prog.Med.,1985年,5卷,p.2157-2161、或「醫藥品之開發」(廣川書店)1990年,第7卷,分子設計,p.163-198所記載之基。
又,式(I)之化合物之鹽,係指式(I)之化合物在製藥學上容許的鹽,依取代基之種類,亦有形成酸加成鹽或與鹼之鹽的情況。具體而言,可列舉與鹽酸、氫溴酸、碘化氫酸、硫酸、硝酸、磷酸等之無機酸,或甲酸、乙酸、丙酸、草酸、丙二酸、琥珀酸、富馬酸、馬來
酸、乳酸、蘋果酸、苯乙醇酸、酒石酸、二苄醯基酒石酸、二甲苯甲醯基酒石酸、檸檬酸、甲烷磺酸、乙烷磺酸、苯磺酸、p-甲苯磺酸、天門冬胺酸、麩胺酸等之有機酸的酸加成鹽;與鈉、鉀、鎂、鈣、鋁等之無機鹼,甲基胺、乙基胺、乙醇胺、離胺酸、鳥胺酸等之有機鹼的鹽;與乙醯基白胺酸等各種胺基酸及胺基酸衍生物的鹽或銨鹽等。
進一步地,本發明亦包含式(I)之化合物及其鹽之各種水合物或溶劑合物、及結晶多形(crystal polymorphism)之物質。又,本發明亦包含以各種放射性或非放射性同位素標記的化合物。
式(I)之化合物及其鹽,可利用基於其基本構造或取代基種類之特徵,應用各種周知之合成法來製造。此時,依官能基之種類,將該官能基於自原料至中間體的階段預先取代為適當的保護基(可容易轉化為該官能基之基),有時在製造技術上會有效果。作為如此的保護基,可列舉例如P.G.M.Wuts及T.W.Greene著、「Greene’s Protective Groups in Organic Synthesis(第4版、2006年)」所記載之保護基等,可依此等反應條件適當選擇使用。如此之方法中,可藉由在導入該保護基進行反應後,依需要去除保護基,而得到所期望之化合物。
又,式(I)之化合物之前驅藥,可與上述保護基同
樣地,於自原料至中間體的階段導入特定基,或使用所得之式(I)化合物進一步進行反應來製造。反應可藉由應用通常之酯化、醯胺化、脫水等所屬技術領域具有通常知識者周知之方法來進行。
以下,說明式(I)之化合物的代表製造法。各製造法,亦可參照該說明所附之參考文獻來進行。再者,本發明之製造法不限定於以下所示例子。
式(I)之化合物中,係有(i)R5為低級烷基之式(I)之化合物(以下,稱為式(I-1)之化合物)、及(ii)R5為-H之式(I)之化合物(以下,稱為式(I-2)之化合物),以下述載各自的一般製造法。
(i)式(I-1)之化合物,可由化合物(A)與化合物(B)製造。本反應係使硼酸化合物(A)與化合物(B)反應,以製造化合物(I)之所謂鈴木偶合。反應可在無溶劑中、或甲苯、二甲苯等芳香族烴類;Et2O、
THF、DME、二噁烷等之醚類;DCM、DCE、氯仿等之鹵化烴類;DMF、DMSO、EtOAc、CH3CN等之非質子性溶劑等,對反應不具活性之溶劑中,於室溫至加熱回流下進行。反應係在鈀、膦配位子及金屬鹼共存下進行。鈀可使用Pd(PPh3)4、Pd(OAc)2、Pd2dba3等。膦配位子可使用BINAP、DPPF、PPh3、P(But)3等。金屬鹼可使用Na2CO3、K2CO3、Cs2CO3、NaOBut、K3PO4等。
(ii)式(I-2)之化合物,可藉由將式(I-1)之化合物之R5予以脫烷基而製造。該脫烷基例如為水解等。鹼水解時,可使用NaOH、KOH、Na2CO3、Cs2CO3等之金屬鹼。酸水解時,可使用鹽酸等。不管何者,均可於反應溫度為冰冷下至回流條件下,於基質不分解的條件下進行反應。溶劑可使用MeOH、EtOH等之醇;DMF、DMSO等之非質子性溶劑;或水或該等之混合溶劑。
原料化合物(A),可藉由化合物(1)與硼酸三異丙酯等硼酸化合物之反應而得到。
本反應中,係將化合物(1)與硼酸三異丙酯等硼酸化合物,予以等量或使一方為過剩量來使用,於冷卻下、較佳為-78℃至0℃下,於此等混合物中添加nBuLi等之有機鋰試藥,於對反應為不活性的溶劑中、或無溶劑下,在低溫至室溫下,較佳為於0℃至30℃下,通常攪拌0.1小時~5日。此處可用之溶劑例子,並無特殊限定,只要係不妨礙反應的溶劑即可,可列舉己烷等之烴類;Et2O、THF等之醚類等。
原料化合物(B),可藉由化合物(2)與化合物(3)之反應而得到。
本反應中,係將化合物(2)與化合物(3),予以等量或使一方為過剩量來使用,將此等混合物,於對反應為不活性的溶劑中、或無溶劑下,於冷卻下至加熱回流下,較佳為於0℃至80℃下,通常攪拌0.1小時~5日。此處可用之溶劑例子,並無特殊限定,可列舉芳香族烴類、醚類、鹵化烴類、DMF、DMSO、EtOAc、CH3CN及此等之
混合溶劑。就使反應順利進行的觀點上,在TEA、DIPEA等之有機鹼;或K2CO3、Na2CO3或KOH等之無機鹼存在下進行反應,有時係有利的。
S. R. Sandler及W. Karo著、「Organic Functional Group Preparations」、第2版、第1卷、Academic Press Inc.、1991年
日本化學會編「實驗化學講座(第5版)」14卷(2005年)(丸善)
原料化合物(B)之一態樣的化合物(B-1),可藉由
將使化合物(2)與化合物(3-1)反應所得到之(4),轉換為化合物(5)後,使化合物(6)進行反應而得到。化合物(4),可由化合物(2)及化合物(3-1),以與前述原料合成2記載之方法同樣的方式得到。化合物(5),可藉由使用通常的方法(日本化學會編「實驗化學講座(第5版)」14卷(2005年)(丸善)等),將化合物(4)之OH基,轉換為鹵素、-OMs、或-OTs等之脫離基而得到。於最終階段,化合物(B-1),可藉由使用與前述原料合成2同樣的條件,使化合物(5)與化合物(6)進行反應而得到。
式(I)之化合物,可作為游離化合物、其鹽、水合物、溶劑合物、或結晶多形之物質而被單離、精製。式(I)之化合物之鹽,亦可藉由進行一般方法之製鹽反應而製造。
單離、精製,係藉由應用萃取、分級結晶化(fractional crystallization)、各種分級層析(fractionation chromatography)等通常之化學操作來進行。
各種異構物,可藉由選擇適當的原料化合物來製造,或可利用異構物間之物理化學的性質差異來分離。例如,光學異構物,可藉由消旋體之一般的光學離析法(例如導向與光學活性之鹼或酸的非鏡像異構物鹽之分級結晶化、或使用掌性管柱等之層析等)而得到,又,亦可由適當之光學活性的原料化合物來製造。
式(I)之化合物之藥理活性,係藉由以下試驗而確認之。
再者,試驗例2至試驗例6中,被試驗藥係使用0.5%乙基纖維素懸浮液。
於384孔微孔盤中,以成為12000cells/well的方式播種細胞((1)T84細胞(已知會表現IK1通道)或(2)人類IK1通道表現細胞(導入基因:NM_002250.2,使用細胞:CHO dhfr-))。培置(incubate)整夜後,吸取培養基,添加FLIPR Membrane Potential Assay Reagent(FLIPR Membrane Potential Assay kit、Molecular Devices公司)20μL,於室溫培置1小時。以530nm/590nm測定螢光強度,作為pre值。添加加入了被試驗藥之緩衝溶液(於HBSS中含有0.01% pluronic acid及20mM Hepes-NaOH(pH7.4);0.2% CHAPS)20μL,於室溫培置1小時後,測定post值。由以NS-309(6,7-二氯-1H-吲哚-2,3-二酮3-肟,Sigma-Aldrich公司;0.2μM;DMSO溶液)處理為100%、以DMSO處理為0%時的相對值,求出被試驗藥之活性。將各濃度之活性值(%)對被試驗藥之濃度作圖,以Logistic回歸法算出EC50值。
將本發明中幾個代表的實施例化合物之IK1通道開口作用的EC50值,顯示於下述表中(表中、No.意
指編號、Ex意指實施例化合物編號。以下相同)。表1中顯示使用T84細胞時的結果,表2中顯示使用人類IK1通道表現細胞(導入基因:NM_002250.2,使用細胞:CHO dhfr-)時的結果。
對Wistar雄性大鼠(CLEA Japan公司),在異氟烷麻醉下將氣球插入結腸。清醒後,將被試驗藥經口投與,於1小時後,以腹部屈曲反應為指標,來計測氣球擴張誘發之腹痛。刺激為5分鐘間隔,重複進行各刺激(15,30,45,60mmHg)5分鐘。溶劑群與被試驗藥群之顯著性檢定,係使用Student’s t-test、或Dunnett多重比較檢定,以群間比較來進行。各檢定中,P<0.05時,判斷具
有顯著差。
本發明中的幾個代表性的實施例化合物在大鼠結腸擴張刺激所致腹痛試驗中的有效性,係如下述表所示(表中,MED意指最小有效量。以下相同)。實施例化合物Ex10及Ex18,分別以下述表所示的用量,顯示出顯著的作用。
本模式係探討發炎性疼痛之模式。對雌性Lewis大鼠(日本Charles River公司)右後肢足底,皮下投與經流動石蠟懸浮之結核死菌H37Ra(DIFCO公司)50μL,使成為10mg/mL。翌日經口投與溶劑或被試驗藥。使用Incapacitance Tester(Linton Instrumentation公司)計測1或2小時後之左右後肢之負重差。溶劑群與被試驗藥群之顯著性檢定係使用Student’s t-test、或Dunnett多重比較檢定,以群間比較來進行。各檢定中,p<0.05時,判斷為具有顯著差。
本發明中的幾個代表性的實施例化合物在佐劑誘發關節炎大鼠試驗中之有效性,係如下述表所示。實施例化合物Ex10、Ex11、Ex14及Ex18,係分別以下述表
所示用量,顯示出顯著的作用。
本模式係為變形性關節炎之模式,使用本模式,可評估關於變形性關節炎性疼痛的作用。本試驗,係基於The Journal of Pharmacology and Experimental Therapeutics,2010年,vol.334,p.955-963而實施。於異氟烷麻醉下,對雄性SD大鼠(日本Charles River公司)之右膝關節腔內,單次投與單碘乙酸(以下稱為MIA)(Sigma-Aldrich公司)溶液1mg/site。MIA係溶解於生理食鹽水中,使用27gauge、0.5英吋針來投與50μL。MIA投與3週後,經口投與溶劑或被試驗藥。1或2小時後,使用Incapacitance Tester(Linton Instrumentation公司)來計測左右後肢之負重差。溶劑群與被試驗藥群之顯著性檢定係使用Student’s t-test、或Dunnett多重比較檢定,以群間比較來進行。各檢定中,p<0.05時,判斷為具有顯著差。
本發明中的幾個代表性的實施例化合物對單碘乙酸誘發變形性關節炎模式之有效性,係如下述表所
示。實施例化合物Ex10、Ex11、Ex14及Ex18係分別以下述表所示用量,顯示出顯著的作用。
本模式係模擬肌纖維痛症病態之模式。本試驗係基於Pain,2009年,vol.146,p26-33之記載來實施。對雄性SD大鼠(日本SLC公司)1日1次,皮下投與蛇根鹼(1mg/kg)3日。5日後經口投與溶劑或被試驗藥。2小時後使用Randall-Selitto機器(室町機械公司),於腓腸肌計測壓痛閥值。溶劑群與被試驗藥投與群之顯著性檢定係使用Student’s t-test、或Dunnett多重比較檢定,以群間比較來進行。此處,係以對未投與蛇根鹼之正常大鼠投與溶劑之值為100%、以投與溶劑之蛇根鹼群的值為0%。各檢定中,p<0.05時,判斷為具有顯著差。
其結果,本發明中之代表性的實施例化合物10(Ex10),在1mg/kg之投與時顯示了超過50%之改善率。此係顯著的作用。
本模式係被報導為呈現類肌纖維痛症之症狀的模式。
本模式係基於Neuroscience,2009年,vol.164,p.1252-1262所製成。將雄性SD大鼠(日本SLC公司)以Somnopentyl麻醉,對劍狀突起(xiphoid process)附近剃毛。由劍狀突起至尾部側沿著正中線切開。於橫隔膜下使胃、食道露出,切除在食道兩側之迷走神經。依序縫合肌肉、皮膚。術後1~3週後確認壓痛閥值之降低。經口投與溶劑或被試驗藥,2小時後使用Randall-Selitto機器(室町機械公司),於腓腸肌計測壓痛閥值。溶劑群與被試驗藥群之顯著性檢定係使用Student’s t-test、或Dunnett多重比較檢定,以群間比較來進行。各檢定中,p<0.05時,判斷為具有顯著差。
本發明中的幾個代表性的實施例化合物之有效性,係以對偽手術群投與溶劑之群的值為100%、以對手術群投與溶劑之群的值為0%,作為改善率顯示於下述表。實施例化合物Ex10、Ex14、Ex15及Ex18係分別以下述表所示用量,顯示出顯著的作用。
上述試驗之結果,確認了幾個代表性的式(I)之化合物或其鹽,顯示IK1通道開口活性。因此,顯示了本發明化合物具有IK1通道開口活性,亦即IK1通道活化作用。
又,上述試驗之結果,式(I)之化合物或其鹽,於對大鼠結腸擴張刺激所致腹痛之效果、對佐劑誘發關節炎大鼠之後肢負重差的抑制效果、對單碘乙酸誘發變形性關節炎模式中之後肢負重差的抑制效果、對蛇根鹼誘發肌痛模式中之壓痛閥值的效果、及迷走神經切除大鼠中之壓痛閥值方面,顯示了有效性。因此,式(I)之化合物或其鹽,可使用於內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症等之預防及/或治療。此處,內臟痛,作為其一態樣係IBS症狀(腹痛)。又,變形性關節炎性疼痛,係指變形性關節炎所致之疼痛。
進一步地,由上述試驗之結果,發現IK1通道活化劑可使用於發炎性疼痛、變形性關節炎性疼痛、或肌纖維痛症等之預防及/或治療。
含有式(I)之化合物或其鹽之1種或2種以上作為有效成分的醫藥組成物,可使用本領域通常所用之賦形劑,亦即藥劑用賦形劑或藥劑用載體等,藉由通常使用之方法來配製。
投與係錠劑、丸劑、膠囊劑、顆粒劑、散劑、液劑等之經口投與、或關節內、靜脈內、肌肉內等之注射劑;栓劑、點眼劑、眼軟膏、經皮用液劑、軟膏劑、經皮用貼附劑、經黏膜液劑、經黏膜貼附劑、吸入劑等之非經口投與的任意形態均可。
作為用於經口投與之固體組成物,可使用錠
劑、散劑、顆粒劑等。如此之固體組成物中,係將1種或2種以上之有效成分,與至少1種之不具活性的賦形劑混合。組成物可遵照一般方法,含有不具活性之添加劑,例如潤滑劑或崩解劑、安定化劑、溶解輔助劑。錠劑或丸劑亦可依需要,以糖衣或胃溶性或腸溶性物質之薄膜被膜。
用於經口投與之液體組成物,係含有藥劑上容許的乳濁劑、溶液劑、懸浮劑、糖漿劑或酏劑等,且含有一般所用之不具活性之稀釋劑,例如淨化水或EtOH。該液體組成物,於不具活性之稀釋劑以外,亦可含有如助溶劑、濕潤劑、懸浮劑之輔助劑、甘味劑、風味劑、芳香劑、防腐劑。
用於非經口投與之注射劑,係含有無菌的水性或非水性之溶液劑、懸浮劑或乳濁劑。作為水性溶劑,例如包含注射用蒸餾水或生理食鹽液。作為非水性溶劑,例如係有如EtOH之醇類。如此之組成物,亦可進一步含有等張化劑、防腐劑、濕潤劑、乳化劑、分散劑、安定化劑、或溶解輔助劑。此等係藉由例如通過細菌保留濾膜之過濾、殺菌劑之摻合或照射而無菌化。又,此等亦可製造無菌之固體組成物,且在使用前溶解或懸浮於無菌水或無菌之注射用溶劑來使用。
外用劑係包含軟膏劑、硬膏劑、乳劑、凝膠劑、泥罨劑、噴霧劑、洗劑、點眼劑、眼軟膏等。含有一般所用之軟膏基劑、洗劑基劑、水性或非水性之液劑、懸浮劑、乳劑等。
吸入劑或經鼻劑等之經黏膜劑,係使用固體、液體或半固體狀者,可遵照以往周知之方法製造。可適當添加例如周知之賦形劑、或進一步適當添加pH調整劑、防腐劑、界面活性劑、潤滑劑、安定劑或增黏劑等。投與可使用適當的用以吸入或吹送之裝置。例如可使用計量投與吸入裝置等周知之裝置或噴霧器,將化合物作為單獨或經處方之混合物的粉末,或與醫藥上可容許的載體組合,作為溶液或懸浮液投與。乾燥粉末吸入器等,可為單次或多數次投與用者,可利用乾燥粉末或含有粉末之膠囊。或可為使用了適當的推噴劑,例如氯氟烷或二氧化碳等適合的氣體之加壓氣溶膠噴霧等形態。
通常經口投與的情況時,1日之投與量,係單位體重而言約0.001~100mg/kg、較佳為0.01~30mg/kg、更佳為0.01~10mg/kg為適當,將其1次或分為2次~4次投與。靜脈內投與的情況時,1日之投與量,係單位體重而言約0.0001~10mg/kg為適當,係1日1次~分為複數次投與。又,作為經黏膜劑,係將單位體重而言約0.001~100mg/kg以1日1次~分為複數次投與。投與量係考慮症狀、年齡、性別等依照各自的情況而適當決定。
雖依投與路徑、劑型、投與部位、賦形劑或添加劑之種類而異,然本發明之醫藥組成物係含0.01~100重量%、就其一態樣而言係含0.01~50重量%之有效成分即1種或其以上之式(I)之化合物或其鹽。
式(I)之化合物,能夠與可認為前述式(I)
之化合物會顯示有效性的疾病之各種治療劑或預防劑合併使用。該併用可同時投與、或個別地連續、或隔著所期望之時間間隔投與。同時投與製劑,可為摻合劑、亦可個別經製劑化。
以下,基於實施例,更詳細地說明式(I)之化合物之製造法。再者,本發明並不限定為下述實施例所記載之化合物。又,原料化合物之製造法係顯示於製造例、式(I)之化合物之製造法係顯示於實施例。又,式(I)之化合物之製造法,不僅限定於以下所示之具體實施例之製造法,式(I)之化合物亦可藉由此等製造法之組合、或所屬技術領域中具有通常知識者所顯而易見的方法製造。
又,實施例、製造例、後述表中、及說明書中中,亦有使用以下之略記者。
AIBN:2,2’-偶氮二異丁腈、brine:飽和食鹽水、BINAP:2,2'-雙(二苯基膦基)-1,1'-聯萘、CHAPS:3-〔(3-膽醯胺丙基)二甲基銨基〕-1-丙烷磺酸酯、DCE:二氯乙烷、DCM:二氯甲烷、DIPEA:二異丙基乙基胺、DME:1,2-二甲氧基乙烷、DMF:N,N-二甲基甲醯胺、DMSO:二甲基亞碸、DPPF:1,1'-雙(二苯基膦基)二茂鐵、Et2O:二乙基醚、EtOAc:乙酸乙基、EtOH:乙醇、HBSS:漢克斯(Hanks')平衡鹽液、Hepes:4-(2-羥基
乙基)-1-哌嗪乙烷磺酸、Hepes-NaOH(pH7.4):使用NaOH將pH調整為7.4之Hepes水溶液、KOBut:tert-丁氧化鉀、MED:最小有效量、MeOH:甲醇、MgSO4:無水硫酸鎂、Na2SO4:無水硫酸鈉、NaOBut:tert-丁氧化鈉、Pd(OAc)2:乙酸鈀(II)、Pd2dba3:參(二亞苄基丙酮)二鈀(0)、Pd(PPh3)4:肆(三苯基膦)鈀(0)、P(But)3:三-tert-丁基膦、PPh3:三苯基膦、nBuLi:正丁基鋰、TEA:三乙基胺、THF:四氫呋喃、二氧化矽凝膠管柱:二氧化矽凝膠管柱層析。
-OMs:甲烷磺醯氧基、-OTs:p-甲苯磺醯氧基。
No.:編號、Pr:製造例化合物編號、Ex:實施例化合物編號、Ref:作為參考之實施例或製造例(例如,後述表中於Ex15之Ref欄中記載為Ex10的情況時,表示實施例化合物15(Ex15)可與實施例化合物10(Ex10)之文章實施例所記載之方法為同樣方式製造)、Dat:物理化學數據、Str:化學構造式、Inf:表示光學活性之資訊、及化合物之鹽的資訊。(Chiral表示為光學活性體。關於鹽若無特殊記載時,表示游離體。又,例如表中有記載為HCl時,表示單鹽酸鹽)。
NMR(CDCl3):CDCl3溶劑中所測定之1H-NMR之化學位移δ值、NMR(DMSO-d6):DMSO-d6溶劑中所測定之1H-NMR之化學位移δ值、NMR(DMSO-d6+D2O):於DMSO-d6中添加D2O所測定之1H-NMR之化學位移δ值。
EI:以EI-MS測定之m/z值、ESI:以ESI-MS所測定之m/z值、APCI:以APCI-MS所測定之m/z值、APCI/ESI:APCI與ESI同時測定之m/z值。再者,ESI等的接尾辭中有+或-時,+意指以陽離子模式、-意指以陰離子模式測定之MS值。
又,就方便上,將濃度mol/L標記為M。例如,1M NaOH水溶液,意指1mol/L之NaOH水溶液。
粉末X射線繞射,係使用RINT-TTRII(RIGAKU公司),以射線管:Cu,管電流:300mA、管電壓:50kV、取樣寬度:0.020°、掃描速度:4°/min、波長:1.54056Å、測定繞射角範圍(2θ):2.5~40°之條件測定。
各結晶雖係各自以粉末X射線繞射圖型而賦予特徵,但粉末X射線繞射,於數據的性質上,在認定結晶之同一性時,結晶晶格間隔或整體的圖型係為重要,相對強度係隨著結晶成長之方向、粒子之大小、測定條件不同,多少可能變動,因此不應嚴格解釋。
於6-氯-1-苯并噻吩(6.00g)及THF(180mL)之混合物中,於-78℃滴入nBuLi之己烷溶液(1.59M,33.6mL),於-78℃攪拌30分鐘。將反應混合物昇溫至-40℃,攪拌5分鐘後,於-40℃添加碘甲烷(10.1g)。將反應混合物昇溫至室溫,攪拌12小時。在室溫下於反應混
合物中加水,以EtOAc萃取。將有機層以brine洗淨,以MgSO4乾燥後,於減壓下濃縮,得到6-氯-2-甲基-1-苯并噻吩(6.41g)。
將6-氯-2-甲基-1-苯并噻吩(6.40g)、氯仿(100mL)及溴(5.88g)之混合物於室溫攪拌18小時後,於減壓下濃縮。將殘渣溶解於EtOAc,將有機層依次以水、10% Na2S2O3水溶液、接著以brine洗淨。將有機層以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷)精製,得到3-溴-6-氯-2-甲基-1-苯并噻吩(8.50g)。
將6-(三氟甲基)-1-苯并噻吩(1.57g)、乙酸(8mL)及N-溴琥珀酸醯亞胺(1.58g)之混合物於60℃攪拌18小時。將放冷至室溫的反應混合物以氯仿稀釋。將有機層依次以飽和Na2S2O3水溶液、飽和Na2CO3水溶液、水、接著以brine洗淨,以MgSO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷)精製,得到3-溴-6-(三氟甲基)-1-苯并噻吩(1.94g)。
於6-氯-5-氟-1-苯并噻吩-2-羧酸(10.0g)與THF
(100mL)之混合物中,在冰冷下添加硼烷-硫化二甲基錯合物(12.4mL),於室溫攪拌30分鐘。進一步地,將反應混合物在50℃ 4小時,接著添加二噁烷(50mL),於80℃攪拌2小時。於冰冷之反應混合物中加水,以EtOAc萃取。將有機層以brine洗淨,以MgSO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到(6-氯-5-氟-1-苯并噻吩-2-基)甲醇(3.83g)。
將(6-氯-5-氟-1-苯并噻吩-2-基)甲醇(5.94g)溶解於DCM(59mL),冰冷下添加亞硫醯氯(4.89g),於室溫攪拌2小時。於反應混合物中進一步添加亞硫醯氯(1.63g),於室溫攪拌30分鐘。將反應混合物於減壓下濃縮。於殘渣中添加EtOAc,將有機層依次以飽和碳酸氫鈉水、接著brine洗淨,以MgSO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷)精製,得到6-氯-2-(氯甲基)-5-氟-1-苯并噻吩(4.93g)。
將6-氯-2-(氯甲基)-5-氟-1-苯并噻吩(4.93g)與THF(47mL)之混合物,冰冷下添加於氫化鋰鋁(1.19g)與THF(30mL)之混合物中,於冰冷下攪拌30分
鐘。將反應混合物於室溫攪拌2小時後,於冰冷下依次添加水(1.2mL)、15% NaOH水溶液(1.2mL)、接著添加水(3.6mL),於室溫攪拌30分鐘。使用矽藻土將不溶物濾除,將濾液於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷)精製,得到6-氯-5-氟-2-甲基-1-苯并噻吩(4.02g)。
將4-氯-2,5-二氟苯甲醛(21.1g)、玫瑰寧(rhodanine)(16.7g)、乙酸鈉(39.2g)及乙酸(68mL)之混合物加熱回流4小時。於放冷至室溫之反應混合物中加水(300mL),攪拌3小時。濾取析出物,於減壓下乾燥(34.1g)。於所得之物(34.1g)中添加NaOH(31.7g)之水(284mL)溶液,於80℃攪拌3小時。於放冷至室溫之反應混合物中添加濃鹽酸(66mL),於室溫攪拌30分鐘。濾取析出物(29.3g)。將所得之物(29.3g)與DMSO(293mL)及KOBut(26.2g)之混合物於80℃攪拌整夜。於放冷至室溫之反應混合物中添加飽和檸檬酸水(450mL),於室溫攪拌30分鐘。濾取析出物,以水洗淨後,於減壓下乾燥而得到6-氯-5-氟-1-苯并噻吩-2-羧酸(21.9g)。
將6-(三氟甲基)-1-苯并噻吩-2-羧酸(2.17g)、
銅(0.25g)、及喹啉(8mL)之混合物於200℃攪拌5小時。將放冷至室溫之反應混合物以EtOAc稀釋。將有機層依次以1M鹽酸、接著brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷)精製,得到6-(三氟甲基)-1-苯并噻吩(1.62g)。
於6-氯-1-苯并噻吩(7.20g)及THF(216mL)之混合物中,於-78℃滴入nBuLi之己烷溶液(2.76M;18.6mL),於-78℃攪拌30分鐘。將反應混合物昇溫至-40℃,攪拌5分鐘後,於-40℃添加N-氟苯磺醯亞胺(21.5g)。將反應混合物昇溫至室溫,攪拌12小時。在室溫下於反應混合物中加水,以EtOAc萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷)精製,得到6-氯-2-氟-1-苯并噻吩(3.12g)。
於氬環境下,於3-溴-6-氯-2-甲基-1-苯并噻吩(8.48g)、硼酸三異丙酯(11.0g)及THF(148mL)之混合物中,於-78℃滴入nBuLi之己烷溶液(1.59M;36.7mL),於-78℃攪拌30分鐘。將反應混合物昇溫至室溫,攪拌1小時後,於室溫添加1M鹽酸,攪拌30分鐘,以
EtOAc萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。於殘渣中添加己烷,濾取析出物。將濾取之物於減壓下乾燥,得到(6-氯-2-甲基-1-苯并噻吩-3-基)硼酸(1.47g)。
於氬環境下,於6-氯-2-氟-1-苯并噻吩(3.11g)及THF(62mL)之混合物中,於-78℃滴入nBuLi之己烷溶液(2.76M;9.1mL)。將反應混合物花費40分鐘昇溫至-50℃後,添加硼酸三異丙酯(6.27g),昇溫至室溫攪拌12小時。於室溫於反應混合物中添加1M鹽酸,攪拌15分鐘,以EtOAc萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。於殘渣中添加EtOAc與己烷之混合溶劑,濾取所生成的析出物。將濾取之物於減壓下乾燥,得到(6-氯-2-氟-1-苯并噻吩-3-基)硼酸(2.81g)。
於氬環境下,於1-溴-2-氯-5-氟-4-甲基苯(8.10g)及THF(55mL)之混合物中,於-10℃滴入氯化異丙基鎂之THF溶液(2.0M;27.2mL),於-10℃攪拌45分鐘。於反應混合物中,於-75℃滴入碘(18.4g)及THF(26mL)之混合物,於-75℃攪拌3小時。於反應混合物中,於-75℃添加飽和Na2S2O3水溶液,於室溫攪拌15分鐘。
於室溫於反應混合物中添加飽和碳酸氫鈉水後,以EtOAc萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮,得到1-氯-4-氟-2-碘-5-甲基苯(9.71g)。
於1-氯-4-氟-2-碘-5-甲基苯(9.71g)及DMF(120mL)之混合物中,於室溫添加二氟(氟磺醯基)乙酸甲酯(18.2mL)及碘化銅(2.74g),於氬環境下,於95℃攪拌3小時半。於放冷至室溫之反應混合物中添加EtOAc並攪拌後,以矽藻土過濾而濾除不溶物。於濾液中加水後,以EtOAc萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷)精製,得到1-氯-4-氟-5-甲基-2-(三氟甲基)苯(5.64g)。
於1-氯-4-氟-5-甲基-2-(三氟甲基)苯(5.64g)及四氯化碳(85mL)之混合物中,於室溫添加N-溴琥珀酸醯亞胺(5.19g)、AIBN(218mg),於80℃攪拌12小時。將反應混合物放冷至室溫,追加N-溴琥珀酸醯亞胺(5.19g)、AIBN(218mg),於80℃攪拌1日。於放冷至室溫之反應混合物中添加飽和碳酸氫鈉水、飽和Na2S2O3水溶液,以氯仿萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝
膠管柱(溶出溶劑:己烷)精製,得到1-(溴甲基)-5-氯-2-氟-4-(三氟甲基)苯(3.08g)。
於1-(溴甲基)-5-氯-2-氟-4-(三氟甲基)苯(3.08g)與乙腈(31mL)之混合物中,添加4-甲基嗎啉4-氧化物(2.47g),於水浴下攪拌1小時、進一步於室溫攪拌1小時。於反應混合物中,冰冷下添加飽和氯化銨水,以EtOAc萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-氯-2-氟-4-(三氟甲基)苯甲醛(1.32g)。
將5-溴-2-氟安息香酸甲酯(5.00g)、(2S)-嗎啉-2-基甲醇(3.39g)、DIPEA(4.16g)及DMSO(25mL)之混合物於80℃攪拌36小時。於放冷至室溫之反應混合物中加水,以EtOAc與Et2O之混合溶劑萃取。將有機層依次以水、接著以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-溴-2-〔(2S)-2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(4.69g)。
於5-溴-2-〔(2S)-2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(3.08g)、DCM(46mL)及TEA(2.83g)之混合物中,室溫下添加甲基磺醯氯(2.35g),於室溫攪拌2小時。於室溫於反應混合物中添加飽和碳酸氫鈉水後,以氯仿萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣與DMSO(15mL)及環丁基胺(6.63g)之混合物於60℃攪拌18小時。於放冷至室溫之反應混合物中加水,以EtOAc與Et2O之混合溶劑萃取。將有機層依次以水、接著以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以鹼性二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-溴-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸甲酯(1.96g)。
將(4-〔4-溴-2-(甲氧基羰基)苯基〕-1,4-二氮雜環庚烷-1-羧酸tert-丁酯)(3.00g)、MeOH(10mL)、及氯化氫之二噁烷溶液(4M;10mL)之混合物於室溫攪拌3小時後,於減壓下濃縮。於殘渣中添加飽和碳酸氫鈉水,以EtOAc萃取。將有機層以Na2SO4乾燥後,於減壓下濃縮,得到5-溴-2-(1,4-二氮雜環庚烷-1-基)安息香酸甲酯(1.96g)。
於5-溴-2-(1,4-二氮雜環庚烷-1-基)安息香酸甲酯(950mg)中,依次混合DCE(19mL)、乙酸(364mg)、三乙醯氧基氫化硼鈉(1.93g),添加乙醛(401mg),將反應混合物於室溫攪拌2小時。於反應混合物中添加飽和碳酸氫鈉水,激烈攪拌10分鐘後,以氯仿萃取。將有機層以Na2SO4乾燥後,於減壓下濃縮。將殘渣以鹼性二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-溴-2-(4-乙基-1,4-二氮雜環庚烷-1-基)安息香酸甲酯(624mg)。
將(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)硼酸(598mg)、5-溴-2-〔(2S)-2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(577mg)、Pd(PPh3)4(202mg)、DME(11.5mL)、及2M Na2CO3水溶液(2.6mL)之混合物在氬環境下80℃攪拌5小時。使用EtOAc與Et2O之混合溶劑萃取放冷至室溫之反應混合物。將有機層以brine洗淨,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-〔(2S)-2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(750mg)。
將(6-氯-2-甲基-1-苯并噻吩-3-基)硼酸(2.40g)、
5-溴-2-〔(2S)-2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(2.50g)、Pd(PPh3)4(875mg)、DME(50mL)及2M Na2CO3水溶液(11.4mL)之混合物於氬環境下80℃攪拌整夜。將放冷至室溫之反應混合物以EtOAc稀釋,藉由矽藻土過濾去除不溶物後,將濾液於減壓下濃縮。將所得之殘渣,以二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-〔(2S)-2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(3.18g)。
於氬環境下,於5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-〔(2S)-2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(740mg)、DCM(14.8mL)及TEA(0.69mL)之混合物中,於冰冷下添加甲基磺醯氯(0.28mL),昇溫至室溫攪拌2小時。於反應混合物中添加飽和碳酸氫鈉水,以氯仿萃取後,將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-〔(2S)-2-{〔(甲基磺醯基)氧基〕甲基}嗎啉-4-基〕安息香酸甲酯(791mg)。
於5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-〔(2S)-
2-(羥基甲基)嗎啉-4-基〕安息香酸甲酯(3.18g)、DCM(32mL)及TEA(2.24g)之混合物中,於冰冷下添加甲基磺醯氯(1.86g),於同溫度攪拌1.5小時。於冰冷下於反應混合物中添加飽和碳酸氫鈉水,以氯仿萃取。將有機層以Na2SO4乾燥後,於減壓下濃縮,得到5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-〔(2S)-2-{〔(甲基磺醯基)氧基〕甲基}嗎啉-4-基〕安息香酸甲酯(3.58g)。
將(6-氯-2-甲基-1-苯并噻吩-3-基)硼酸(1.02g)、5-溴-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸甲酯(898mg)、Pd(PPh3)4(271mg)、DME(29mL)及2M Na2CO3水溶液(4.7mL)之混合物於氬環境下100℃攪拌18小時。於放冷至室溫之反應混合物中加水,以EtOAc萃取。將有機層以MgSO4乾燥後,於減壓下濃縮。將殘渣以鹼性二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸甲酯(970mg)。
將5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸甲酯
(950mg)、1M NaOH水溶液(9.5mL)及EtOH(10mL)之混合物,於50℃攪拌12小時。將放冷至室溫之反應混合物以1M鹽酸中和,於減壓下濃縮。將殘渣以十八烷基二氧化矽凝膠管柱(溶出溶劑:0.001M鹽酸/二噁烷)精製。將溶出之區分(fraction)於減壓下濃縮後,與EtOH混合,添加1M鹽酸(1.8mL),於減壓下濃縮。將殘渣以EtOH洗淨,得到5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸一鹽酸鹽(830mg)。
將5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-〔(2S)-2-{〔(甲基磺醯基)氧基〕甲基}嗎啉-4-基〕安息香酸甲酯(1.00g)、DMSO(10mL)及環丁基胺(1.35g)之混合物於60℃攪拌12小時後,於80℃進一步攪拌12小時。於放冷至室溫之反應混合物中加水,以EtOAc萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以鹼性二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸甲酯(845mg)。
於5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-〔(3S)-3-
(羥基甲基)哌啶-1-基〕安息香酸甲酯(293mg)、DCM(5mL)及TEA(207mg)之混合物中,於室溫添加甲基磺醯氯(178mg),於室溫攪拌1.5小時。於室溫於反應混合物中添加飽和碳酸氫鈉水後,以氯仿萃取。將有機層以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣與DMSO(4mL)及1-胺基-2-甲基-2-丙醇(610mg)之混合物於60℃攪拌18小時後,於80℃進一步攪拌6小時。於放冷至室溫之反應混合物中加水,以EtOAc萃取。將有機層以水、接著以brine洗淨,以Na2SO4乾燥後,於減壓下濃縮。將殘渣以鹼性二氧化矽凝膠管柱(溶出溶劑:己烷/EtOAc)精製,得到5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-〔(3R)-3-{〔(2-羥基-2-甲基丙基)胺基〕甲基}哌啶-1-基〕安息香酸甲酯(114mg)。
於氬環境下,將5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸甲酯(2.05g)、1M NaOH水溶液(6.0mL)及MeOH(15mL)之混合物於50℃攪拌19小時。於放冷至室溫之反應混合物中添加1M鹽酸(6.0mL),減壓濃縮。將殘渣以二氧化矽凝膠管柱(溶出溶劑:氯仿/MeOH)精製。將精製物與二噁烷/H2O(40mL/2mL)混合,添加47%氫溴酸水溶液(0.70mL),於60℃攪拌13小時。放冷至室溫後,濾取析出物,得到5-(6-氯-2-甲
基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸一氫溴酸鹽(1.65g)。
以與上述製造例或實施例之方法相同方式,製造後述表所示之製造例及實施例之化合物。
本發明化合物,具有IK1通道活化作用,可使用作為內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症等之預防及/或治療藥。
又,依本發明中所得的見解,IK1通道活化劑可使用作為發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、或肌纖維痛症之預防及/或治療藥。
Claims (17)
- 如請求項1之化合物或其鹽,其中R4為-Lk-NH-R0。
- 如請求項2之化合物或其鹽,其中X為-O-或-CH2-。
- 如請求項3之化合物或其鹽,其中n為2。
- 如請求項4之化合物或其鹽,其中Lk為-CH2-。
- 如請求項5之化合物或其鹽,其中R5為-H。
- 如請求項6之化合物或其鹽,其中R0為C4烷基、-C4伸烷基-OH或C3-8環烷基。
- 如請求項1之化合物或其鹽,其中R1為C1-6烷基,R2為-H,R3為鹵素,R4為-Lk-NH-R0,Lk為-CH2-,R0為C3-8環烷基,R5為-H,X為-O-,n為2。
- 如請求項1之化合物或其鹽,其中R1為C1-6烷基,R2為鹵素,R3為鹵素,R4為-Lk-NH-R0,Lk為-CH2-,R0為C3-8環烷基,R5為-H,X為-O-,n為2。
- 如請求項7之化合物或其鹽,其係由下述群中選擇;5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸、5-(6-氯-2-氟-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸、2-{(3R)-3-〔(tert-丁基胺基)甲基〕哌啶-1-基}-5-〔6-(三氟甲基)-1-苯并噻吩-3-基〕安息香酸、5-〔5-氯-6-(三氟甲基)-1-苯并噻吩-3-基〕-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸、及5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸。
- 如請求項10之化合物或其鹽,其係5-(6-氯-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸或其鹽。
- 如請求項10之化合物或其鹽,其係5-(6-氯-5-氟-2-甲基-1-苯并噻吩-3-基)-2-{(2R)-2-〔(環丁基胺基)甲基〕嗎啉-4-基}安息香酸或其鹽。
- 一種醫藥組成物,其係含有如請求項1之化合物或其鹽、及製藥學上容許的賦形劑。
- 如請求項13之醫藥組成物,其係中間傳導性鈣活化鉀通道活化劑。
- 如請求項13之醫藥組成物,其係選自由內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、及肌纖維痛症所成群組之疾病的預防用或治療用醫藥組成物。
- 一種如請求項1之化合物或其鹽之用途,其係用以製造選自由內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、及肌纖維痛症所成群組之疾病的預防或治療用醫藥組成物。
- 如請求項1之化合物或其鹽,其係用以預防或治療選自由內臟痛、發炎性疼痛、變形性關節炎性疼痛、神經病變性疼痛、及肌纖維痛症所成群組之疾病。
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