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机构地区:[1]沈阳工业大学石油化工学院,辽宁辽阳111003
出 处:《合成化学》2015年第10期908-912,共5页Chinese Journal of Synthetic Chemistry
基 金:辽宁省教育厅科学研究一般项目(L2015383);博士科研启动基金资助项目(521422)
摘 要:以3-[(3-氨基-4-甲基氨基苯甲酰)吡啶-2-基氨基]丙酸乙酯为原料,与4-氰基-3-氟苯取代基乙酸经环化反应制得3-【【2-{[(4-氰基-3-氟苯取代基)甲基]-1-甲基-1H-苯并咪唑-5-基}羰基】吡啶-2-基】氨基丙酸乙酯(3a,3e);3经水解和酰胺化反应制得3-【【【2-{[(4-氰基-3-氟苯基)取代基]甲基}-1-甲基-1H-苯并咪唑-5-基】羰基】吡啶-2-基氨基】丙酰取代胺基(6a^6h);6与乙酰氧肟酸经环合反应合成了8个新型的苯并咪唑衍生物(7a^7h),其结构经1H NMR和HR-ESI-MS表征。抗凝血活性结果表明:7a和7c的抗凝血活性最好,其a PTT值分别为(83.1±4.2)s和(80.7±2.9)s,优于阳性对照药达比加群酯(75.3±2.1)s。Ethyl 3-{ 2-[( 4-cyano-3-fluorophenyl substituent) methyl]-1-methyl-N-( pyridin-2-yl)-1H-benzo[d]imidazole-5-carboxamido} propanoate( 3a,3e) were prepared by cyclization of ethyl 3-[3-amino-4-( methylamino)-N-( pyridin-2-yl) benzamido]propanoate with 2-( 4-cyano-3-fluorophenyl substituent) acetic acid. 2-{ 3-[2-( 4-Cyano-3-fluorophenyl substituent) methyl]-1-methyl-N-( pyridin-2-yl)-1H-benzo[d]imidazole-5-carboxamido} propanamido substituent( 6a - 6h) were prepared by hydrolysis and amidation from 3. Eight novel benzoimidazole derivatives( 7a - 7h) were synthesized by cyclization reaction of 6 with acetomenadione. The structures were characterized by1 H NMR and HR-ESI-MS. The anticoagulant activities of 7a - 7h were investigated. The results showed that 7a and 7c exhibited anticoagulant activities. The a PTTs were( 83. 1 ± 4. 2) s and( 80. 7 ± 2. 9) s,respectively,which were better than dabigatran etexilate( 75. 3 ± 2. 1) s.
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