CN107286133A - 3‑芳基‑1,2,4‑三唑‑5(4h)‑硫酮亚胺作为na抑制剂的应用 - Google Patents
3‑芳基‑1,2,4‑三唑‑5(4h)‑硫酮亚胺作为na抑制剂的应用 Download PDFInfo
- Publication number
- CN107286133A CN107286133A CN201710608404.2A CN201710608404A CN107286133A CN 107286133 A CN107286133 A CN 107286133A CN 201710608404 A CN201710608404 A CN 201710608404A CN 107286133 A CN107286133 A CN 107286133A
- Authority
- CN
- China
- Prior art keywords
- thioketones
- triazoles
- alkyl
- bases
- picoline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- -1 thioketones imines Chemical class 0.000 title claims abstract description 18
- 125000003118 aryl group Chemical group 0.000 title abstract description 3
- 239000003112 inhibitor Substances 0.000 title description 2
- NSPMIYGKQJPBQR-UHFFFAOYSA-N 4H-1,2,4-triazole Chemical compound C=1N=CNN=1 NSPMIYGKQJPBQR-UHFFFAOYSA-N 0.000 title 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims abstract description 22
- 239000001257 hydrogen Substances 0.000 claims abstract description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 21
- 238000002360 preparation method Methods 0.000 claims abstract description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 150000003839 salts Chemical class 0.000 claims abstract description 20
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 16
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims abstract description 10
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 9
- 239000008194 pharmaceutical composition Substances 0.000 claims abstract description 9
- 241000712461 unidentified influenza virus Species 0.000 claims abstract description 9
- 229940123424 Neuraminidase inhibitor Drugs 0.000 claims abstract description 7
- 239000002911 sialidase inhibitor Substances 0.000 claims abstract description 7
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims abstract description 4
- NBOBDRSWGAYOLE-UHFFFAOYSA-N CNC(C(=O)N(N(C)C)F)N Chemical compound CNC(C(=O)N(N(C)C)F)N NBOBDRSWGAYOLE-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 4
- 239000000460 chlorine Substances 0.000 claims abstract description 4
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- WKGHUAZJNBXABN-UHFFFAOYSA-N 3-bromo-2-chloro-6-methyl-5-nitropyridine Chemical compound CC1=NC(Cl)=C(Br)C=C1[N+]([O-])=O WKGHUAZJNBXABN-UHFFFAOYSA-N 0.000 claims description 41
- 150000001875 compounds Chemical class 0.000 claims description 29
- SNTWKPAKVQFCCF-UHFFFAOYSA-N 2,3-dihydro-1h-triazole Chemical compound N1NC=CN1 SNTWKPAKVQFCCF-UHFFFAOYSA-N 0.000 claims description 12
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- 238000006243 chemical reaction Methods 0.000 claims description 8
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- 125000004208 3-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C([H])C(*)=C1[H] 0.000 claims description 4
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- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 4
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 29
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- 125000000958 aryl methylene group Chemical group 0.000 description 2
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- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
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Abstract
本发明公开了结构式Ⅰ所示的3‑芳基‑1,2,4‑三唑‑5(4H)‑硫酮亚胺衍生物及其药学上可接受的盐,其制备方法和药物组合物以及其在制备流感病毒神经氨酸酶抑制剂中的应用。式中Z选自:N或CH;X选自:H、C1~C2烷基、C3~C4直链烷基或支链烷基;Y1选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y2选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y3选自:氢、C1~C2烷基、羟基、乙氧基、氨基、甲氨基、二甲氨基、乙酰氨基、氟、氯、溴或碘;Y4选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y5选自:氢或C1~C2烷基。
Description
技术领域
本发明涉及一类新化合物、其制备方法与应用,具体是3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物、其制备方法及其在制备流感病毒神经氨酸酶抑制剂中的应用。
背景技术
4-(芳基亚甲氨基)-3-芳基-1H-1,2,4-三唑-5(4H)-硫酮(1)表现出不同的药理活性。Ar为3-吡啶基,化合物1A(R=2-Cl、4-Cl、3-Br、3-NO2、2-OH、4-OCH3、2-OCH3和3,4-(OCH3)2[Indian Journal of Chemistry,2007,46B:352-356];R=4-OH、4-OCH3、4-Cl和4-N(CH3)2)[Journal of Pharma Research,2014,3(3):20-22];R=H、4-OCH3、4-CH3和4-Cl[Carbohydrate Research,2006,341(13):2187-2199])具有较好的抗细菌与真菌活性,其中吸电子取代基的抗菌活性较优;当R为4-二甲基氨基时,具有较好的抗惊厥作用[IndianJournal of Heterocyclic Chemistry,2005,15(1):15-18];Ar为2-吡啶基,化合物1B(R=3-Cl、3-NO2、3-CH3、3-OCH3、4-OCH3和2-OH),具有一定的杀线虫活性,其中4-OCH3活性最佳[Indian Journal of Chemistry,2015,54B(2):228-239]。Ar为4-吡啶基,化合物1C(R=4-F)可作为SAR诱导剂[Indian Journal of Chemistry,2003,54(10):1260-1274],化合物1C(R=H、2-Cl、3-Cl、4-Cl、2-NO2、3-NO2、2-OH、3-OH、4-N(CH3)2、4-OCH3、3,4-(OCH3)2、3,4,5-(OCH3)3、4-OH和3-OCH3)具有较好的抗细菌与抗真菌活性,当芳环引入取代基后,抗细菌活性均增强,且对位取代活性普遍高于其他位置取代活性,其中4-N(CH3)2活性最优[International Journal of Pharma&Bio Sciences,2010,1(1):1-17;PectrochimicaActa A:Mol Biomol Spectrosc,2008,71(4):1474-80;Indian Journal ofPharmaceutical Sciences,2004,66(6):818-821;Journal of the Chilean ChemicalSociety,2010,55(3):359-362];化合物1C(R=H、4-NO2、4-N(CH3)2、4-Br、4-Cl、4-OCH3和4-OH)具有消炎作用,其中4-N(CH3)2和4-NO2活性最佳[Archives of Pharmacal Research,2011,34(8):1239-1250]。
Ar为苯环,化合物1D(R1=H,R=2-F、3-F、4-F、2-Br、3-Br、4-Br、2-Cl、3-Cl、4-Cl、2-OH、2-NO2、3-NO2、4-CH3、4-OCH3和3-OCH3)具有一定的抗真菌的活性,其中3-F活性最高,3-Br活性次之,间位取代活性普遍大于邻对位取代活性,给电子取代基活性要优于吸电子取代基活性[Asian Journal of Chemistry,2014,26(23):8207-8210];化合物1D(R1=H,R=4-NO2、4-N(CH3)2、4-CH3、4-OCH3、3,4,5-(OCH3)3、2-CF3、3-OCH3-4-OH)具有治疗溶组织内阿米巴作用,其中4-NO2、4-OCH3和4-N(CH3)2的IC50均小于0.5μM[Bioorganic&MedicinalChemistry Letters,2012,22(8):2768-2771];化合物1D(R1=4-OH,R=H、3-OH、2-NO2和3-NO2)具有较弱的抗氧化作用[Journal of Pharmaceutical Sciences and Research,2009,1(2):74-77];化合物1D(R1=4-Cl,R=4-OCH3、4-Br和4-Cl)具有较好的杀棉铃虫活性,诱导棉铃虫幼体死亡率高达70%[Der Pharmacia Sinica,2011,2(1):135-141];化合物1D(R1=2-CH3-4-Cl,R=4-OCH3)具有降低高血糖效果[International Journal ofPharmtech Research,2014,6(4):1245-1255]。
4-氨基-3-芳基-1H-1,2,4-三唑-5(4H)-硫酮与芳香醛缩合得到4-(芳基亚甲氨基)-3-芳基-1H-1,2,4-三唑-5(4H)-硫酮[Asian Journal of Chemistry,2014,26(23):8207-8210]。
发明内容
本发明解决的技术问题是提供一类3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物、其制备方法、药物组合物和用途。
为解决本发明的技术问题,本发明提供如下技术方案:
本发明技术方案的第一方面是提供了一类如结构式Ⅰ所示的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物及其在药学上可接受的盐:
式中Z选自:N或CH;X选自:H、C1~C2烷基、C3~C4直链烷基或支链烷基;
Y1选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y2选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y3选自:氢、C1~C2烷基、羟基、乙氧基、氨基、甲氨基、二甲氨基、乙酰氨基、氟、氯、溴或碘;Y4选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y5选自:氢或C1~C2烷基。
进一步的优选的化合物选自:
4-(苯基亚甲基氨基)-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(4-氟苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(4-二甲基氨基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(2-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(3-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(4-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(2,4-二羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮或
4-[(2,3,4-三羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮。
本发明技术方案的第二方面是提供了第一方面所述通式I所示的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物的制备方法,其特征在于它的制备反应如下:
式中Z选自:N或CH;X选自:H、C1~C2烷基、C3~C4直链烷基或支链烷基;
Y1选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y2选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y3选自:氢、C1~C2烷基、羟基、乙氧基、氨基、甲氨基、二甲氨基、乙酰氨基、氟、氯、溴或碘;Y4选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y5选自:氢或C1~C2烷基。
本发明技术方案的第三方面是提供含有第一方面所述化合物及其药学上可接受的盐的药物组合物,该药物组合物含有治疗有效量的本发明的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物及其药学上可接受的盐,以及任选的含有药用载体。其中所述的药用载体指药学领域常用的药用载体;该药物组合物可根据本领域公知的方法制备:可通过将本发明化合物及其药学上可接受的盐与一种或多种药学上可接受的固体或液体赋形剂和/或辅剂组合,制成适于人或动物使用的任何剂型。本发明化合物及其药学上可接受的盐在其药物组合物中的含量通常为0.1%~95%重量百分比。
本发明化合物及其药学上可接受的盐或含有它的药物组合物可以单位剂量形式给药,给药途径可为肠道或非肠道,如口服、静脉注射、肌肉注射、皮下注射、鼻腔、口腔粘膜、眼、肺和呼吸道、皮肤、阴道、直肠等。
给药剂型可以是液体剂型、固体剂型或半固体剂型。液体剂型可以是溶液剂(包括真溶液和胶体溶液)、乳剂(包括O/W型、W/O型和复乳)、混悬剂、注射剂(包括水针剂、粉针剂和输液)、滴眼剂、滴鼻剂、洗剂和搽剂等;固体剂型可以是片剂(包括普通片、肠溶片、含片、分散片、咀嚼片、泡腾片、口腔崩解片)、胶囊剂(包括硬胶囊、软胶囊、肠溶胶囊)、颗粒剂、散剂、微丸、滴丸、栓剂、膜剂、贴片、气(粉)雾剂、喷雾剂等;半固体剂型可以是软膏剂、凝胶剂、糊剂等。
本发明化合物及其药学上可接受的盐可以制成普通制剂、也制成是缓释制剂、控释制剂、靶向制剂及各种微粒给药系统。
为了将本发明化合物及其药学上可接受的盐制成片剂,可以广泛使用本领域公知的各种赋形剂,包括稀释剂、黏合剂、润湿剂、崩解剂、润滑剂、助流剂。稀释剂可以是淀粉、糊精、蔗糖、葡萄糖、乳糖、甘露醇、山梨醇、木糖醇、微晶纤维素、硫酸钙、磷酸氢钙、碳酸钙等;湿润剂可以是水、乙醇、异丙醇等;粘合剂可以是淀粉浆、糊精、糖浆、蜂蜜、葡萄糖溶液、微晶纤维素、阿拉伯胶浆、明胶浆、羧甲基纤维素钠、甲基纤维素、羟丙基甲基纤维素、乙基纤维素、丙烯酸树脂、卡波姆、聚乙烯吡咯烷酮、聚乙二醇等;崩解剂可以是干淀粉、微晶纤维素、低取代羟丙基纤维素、交联聚乙烯吡咯烷酮、交联羧甲基纤维素钠、羧甲基淀粉钠、碳酸氢钠与枸橼酸、聚氧乙烯山梨糖醇脂肪酸酯、十二烷基磺酸钠等;润滑剂和助流剂可以是滑石粉、二氧化硅、硬脂酸盐、酒石酸、液体石蜡、聚乙二醇等。
还可以将片剂进一步制成包衣片,例如糖包衣片、薄膜包衣片、肠溶包衣片,或双层片和多层片。
为了将给药单元制成胶囊剂,可以将有效成分本发明化合物及其药学上可接受的盐与稀释剂、助流剂混合,将混合物直接置于硬胶囊或软胶囊中。也可将有效成分本发明化合物及其药学上可接受的盐先与稀释剂、黏合剂、崩解剂制成颗粒或微丸,再置于硬胶囊或软胶囊中。用于制备本发明化合物及其药学上可接受的盐片剂的各稀释剂、黏合剂、润湿剂、崩解剂、助流剂品种也可用于制备本发明化合物及其药学上可接受的盐的胶囊剂。
为将本发明化合物及其药学上可接受的盐制成注射剂,可以用水、乙醇、异丙醇、丙二醇或它们的混合物作溶剂并加入适量本领域常用的增溶剂、助溶剂、pH调剂剂、渗透压调节剂。增溶剂或助溶剂可以是泊洛沙姆、卵磷脂、羟丙基-β-环糊精等;pH调剂剂可以是磷酸盐、醋酸盐、盐酸、氢氧化钠等;渗透压调节剂可以是氯化钠、甘露醇、葡萄糖、磷酸盐、醋酸盐等。如制备冻干粉针剂,还可加入甘露醇、葡萄糖等作为支撑剂。
此外,如需要,也可以向药物制剂中添加着色剂、防腐剂、香料、矫味剂或其它添加剂。
为达到用药目的,增强治疗效果,本发明的药物或药物组合物可用任何公知的给药方法给药。
本发明技术方案的第四方面是提供本发明第一方面所述3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物及其药学上可接受的盐以及第三方面所述药物组合物在制备流感病毒神经氨酸酶抑制剂方面的应用。
本发明技术方案的第四方面还提供了4-[(4-甲氧基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮其药学上可接受的盐以及第三方面所述药物组合物在制备流感病毒神经氨酸酶抑制剂方面的应用。
有益技术效果:
本发明的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物是一类具有流感病毒神经氨酸酶抑制活性的化合物。
具体实施方式
以下实施例旨在说明本发明而不是对本发明的进一步限定。
实施例1
6-甲基烟酰肼的制备
15.12g(100.0mmol)6-甲基烟酸甲酯与5mL乙醇的混合液逐滴加入到18.75g(300.0mmol)80%的水合肼中,滴毕,室温搅拌2h,旋蒸回收溶剂,加入5mL乙醚,抽滤,干燥,得13.52g白色固体6-甲基烟酰肼,收率90%,m.p.138~140℃。
实施例2
4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
6.00g(40.0mmol)6-甲基烟酰肼,3.36g(60.0mmol)氢氧化钾,冰浴下溶于50mL甲醇,逐滴加入4.60g(60.0mmol)二硫化碳与2mL乙醇的混合液,滴毕,室温搅拌5h,析出固体,抽滤,干燥;将固体溶于7.50g(120.0mmol)80%水合肼,回流,反应完全,稀盐酸中和,析出固体,抽滤,干燥,将粗产物浸入20mL二硫化碳,搅拌30min,抽滤,干燥,得5.73g白色固体4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率71%,m.p.264~266℃。1HNMR(400MHz,DMSO+D2O)δ:9.02(d,J=2.0Hz,1H,吡啶环2-H),8.26(dd,J=8.0Hz,2.0Hz,1H,吡啶环4-H),7.44(d,J=8.0Hz,1H,吡啶环5-H),2.55(s,3H,CH3)。
实施例3
4-(苯基亚甲基氨基)-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
5.0mmol 4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,5.1mmol苯甲醛,10mL乙酸,回流5.0h,冷却,析出固体,抽滤,干燥得黄色固体4-(苯基亚甲基氨基)-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率90%,m.p.222~224℃。1H NMR(400MHz,CDCl3+D2O)δ:10.25(s,1H,N=CH),9.14(d,J=2.0Hz,1H,吡啶环2-H),8.17(dd,J=8.4Hz,2.0Hz,1H,吡啶环4-H),7.88(d,J=7.6Hz,2H,C6H4,2,6-H),7.57~7.47(m,3H,C6H4,3,4,5-H),7.31(d,1H,J=8.4Hz,吡啶环5-H),2.65(s,3H,CH3)。
实施例4
4-[(4-氟苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与4-氟苯甲醛反应5.0h,得黄色固体4-[(4-氟苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率80%,m.p.242~244℃。1H NMR(400MHz,CDCl3+D2O)δ:10.26(s,1H,N=CH),9.11(d,J=2.0Hz,1H,吡啶环2-H),8.14(dd,J=8.4Hz,2.0Hz,1H,吡啶环4-H),7.89~7.86(q,2H,C6H4 3,5-H),7.20~7.16(t,J=8.4Hz,2H,C6H4 2,6-H),7.31~7.29(d,J=8.4Hz,1H,吡啶环5-H),2.65(s,3H,CH3)。
实施例5
4-[(4-甲氧基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与4-甲氧基苯甲醛反应5.0h,得黄色固体4-[(4-甲氧基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率66%,m.p.238~240℃。1H NMR(400MHz,CDCl3+D2O)δ:9.99(s,1H,N=CH),9.13(d,J=2.0Hz,1H,吡啶环2-H),8.17(dd,J=8.0Hz,2.0Hz,1H,吡啶环4-H),7.84(d,2H,J=8.4Hz,C6H4 2,6-H),7.30(d,2H,J=8.0Hz,吡啶环5-H),7.00(d,2H,J=8.4Hz,C6H4 3,5-H),3.89(s,3H,OCH3),2.64(s,3H,CH3)。
实施例6
4-[(4-二甲基氨基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与4-(二甲基氨基)苯甲醛反应5.0h,得黄色固体4-[(4-二甲基氨基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率89%,m.p.233~235℃。1H NMR(400MHz,CDCl3+D2O)δ:9.63(s,1H,N=CH),9.18(d,J=2.0Hz,1H,吡啶环2-H),8.23(dd,J=8.0Hz,2.0Hz,1H,吡啶环4-H),7.75(d,J=8.4Hz,2H,C6H4,3.5-H),7.29(s,1H),6.72(d,J=8.4Hz,2H,C6H4,2,6-H),3.08(s,6H,CH3NCH3),2.65(s,3H,CH3)。
实施例7
4-[(2-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与2-羟基苯甲醛反应2.5h,得黄色固体4-[(2-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率69%,m.p.235~236℃。1H NMR(400MHz,CDCl3+D2O)δ:10.02(s,1H,N=CH),8.90(s,1H,吡啶环2-H),8.13(d,J=8.0Hz,1H,吡啶环4-H),7.83(d,J=8.0Hz,1H,吡啶环5-H),7.46–6.94(m,4H,C6H4),2.54(s,3H,CH3)。
实施例8
4-[(3-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与3-羟基苯甲醛反应2.0h,得白色固体4-[(3-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率89%,m.p.238~239℃。1H NMR(400MHz,DMSO+D2O)δ:9.69(s,1H,N=CH),8.90(s,1H,吡啶环2-H),8.12(d,J=8.0Hz,1H,吡啶环4-H),7.45(d,J=8.0Hz,1H,吡啶环5-H),7.40-7.03(m,4H,C6H4),2.54(s,3H,CH3)。
实施例9
4-[(4-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与4-羟基苯甲醛反应2.5h,得白色固体4-[(4-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率83.9%,m.p.257~259℃。1H NMR(400MHz,DMSO+D2O)δ:9.46(s,1H,N=CH),8.90(s,1H,吡啶环2-H),8.12(d,J=8.0Hz,1H,吡啶环4-H),7.75(d,J=8.0Hz,2H,C6H4 2,6-H),7.43(d,J=8.0Hz,1H,吡啶环5-H),6.94(d,J=8.0Hz,2H,C6H43,5-H),2.53(s,3H,CH3)。
实施例10
4-[(2,4-二羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与2,4-二羟基苯甲醛反应2.0h,得淡黄色固体4-[(2,4-二羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率74.4%,m.p.258~260℃。1H NMR(400MHz,DMSO+D2O)δ:9.62(s,1H,N=CH),8.88(s,1H,吡啶环2-H),8.11(d,J=8.0Hz,1H,吡啶环4-H),7.68(d,J=8.0Hz,1H,吡啶环5-H),7.43(d,J=8.4Hz,1H,C6H3 6-H),6.43—6.41(m,2H,C6H3 3,5-H),2.53(s,3H,CH3)。
实施例11
4-[(2,3,4-三羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮的制备
按实施例3方法制备:4-氨基-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮与2,3,4-三羟基苯甲醛反应2.0h,得淡黄色固体4-[(2,3,4-三羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮,收率70.3%,m.p.263℃。1H NMR(400MHz,DMSO+D2O)9.60(s,1H,N=CH),8.87(s,1H,吡啶环2-H),8.10(d,J=8.0Hz,1H,吡啶环4-H),7.43(d,J=8.0Hz,吡啶环5-H),7.17(d,J=8.8Hz,1H,C6H2),6.50(d,J=8.8Hz,1H,C6H2),2.53(s,3H,CH3)。
实施例12
3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物及其盐的抗流感病毒神经氨酸酶活性
1.实验原理
化合物MUNANA是神经氨酸酶的特异性底物,在神经氨酸酶作用下产生的代谢产物在360nm照射激发下,可产生450nm荧光,荧光强度的变化可以灵敏地反映神经氨酸酶活性。酶均来自A/PR/8/34(H1N1)病毒毒株。
2.实验方法
在酶反应体系中,一定浓度样品与流感病毒神经氨酸酶NA悬浮于反应缓冲液中(pH6.5),加入荧光底物MUNANA启动反应体系,37℃孵育40分钟后,加反应终止液终止反应。在激发波长360nm和发射波长为450nm的参数条件下,测定荧光强度值。根据荧光强度的减少量可以计算化合物对NA活性的抑制率。
3.检测样品:实施例化合物
4.活性结果
实施例化合物在反应系统中检测浓度40.0μg/mL时对神经氨酸酶的抑制率及其IC50值列入下表1:
表1 3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物对神经氨酸酶的抑制活性
3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物具有良好的抗流感病毒神经氨酸酶活性,可用于制备流感病毒神经氨酸酶抑制剂。
Claims (6)
1.一类化学结构式Ⅰ所示的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物及其在药学上可接受的盐:
式中Z选自:N或CH;X选自:H、C1~C2烷基、C3~C4直链烷基或支链烷基;Y1选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y2选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y3选自:氢、C1~C2烷基、羟基、乙氧基、氨基、甲氨基、二甲氨基、乙酰氨基、氟、氯、溴或碘;Y4选自:氢、C1~C2烷基、羟基、甲氧基或乙氧基;Y5选自:氢或C1~C2烷基。
2.权利要求1所述的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物,其特征在于,3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物选自:
4-(苯基亚甲基氨基)-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(4-氟苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(4-二甲基氨基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(2-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(3-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(4-羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮、
4-[(2,4-二羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮或
4-[(2,3,4-三羟基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮。
3.权利要求2所述的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物的制备方法,其特征在于,它的制备反应如下:
式中,X,Y1~Y5和Z如权利要求1所述。
4.权利要求1或2所述的3-芳基-1,2,4-三唑-5(4H)-硫酮亚胺衍生物及其在药学上可接受的盐在制备流感病毒神经氨酸酶抑制剂中的应用。
5.一种药物组合物,包括权利要求1或2至少一种化合物和制药学上可用的载体。
6.4-[(4-甲氧基苯基)亚甲基氨基]-3-(6-甲基吡啶-3-基)-1H-1,2,4-三唑-5(4H)-硫酮其药学上可接受的盐在制备流感病毒神经氨酸酶抑制剂中的应用。
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