详细信息
文献类型:期刊文献
中文题名:替米沙坦关键中间体的合成工艺改进
英文题名:Green synthesis process of key intermediates of telmisartan
作者:徐强[1];熊仪成[2];蔡基玮[2];李维思[1];赵建宏[2]
机构:[1]南京红太阳医药研究院有限公司,江苏南京211300;[2]华东理工大学药学院,上海200237
年份:2020
卷号:30
期号:3
起止页码:149
中文期刊名:中国药物化学杂志
外文期刊名:Chinese Journal of Medicinal Chemistry
收录:CSTPCD;;北大核心:【北大核心2017】;CSCD:【CSCD_E2019_2020】;
语种:中文
中文关键词:2-正丙基-4-甲基-6-(1′-甲基苯并咪唑-2-基)苯并咪唑;替米沙坦;合成
外文关键词:2-n-propyl-4-methyl-6-(1′-methylbenzimidazol-2-yl)benzimidazole;telmisartan;synthesis
摘要:目的研究替米沙坦关键中间体2-正丙基-4-甲基-6-(1′-甲基苯并咪唑-2-基)苯并咪唑的新合成方法。方法以邻甲基苯胺为原料,经丁酰化、氯甲基化、Sommelet反应、环合、硝化、还原环合制得目标化合物。结果与结论2-正丙基-4-甲基-6-(1′-甲基苯并咪唑-2-基)苯并咪唑及部分中间体的结构经MS、~1H-NMR谱确证,6步反应总收率为27.5%(以邻甲基苯胺计),产品纯度99.5%(HPLC归一法),该合成路线具有原料易得、路线较短、安全性高、操作简便等特点。
A new synthetic method of 2-n-propyl-4-methyl-6-(1′-methylbenzimidazol-2-yl)benzimidazole(1),a key intermediate of telmisartan,has been developed.Using o-methylaniline(2)as the raw material,the target compound was prepared by butyrylation,chloromethylation,Sommelet reaction,cyclization,nitration,and reduction cyclization.The structures of 2-n-propyl-4-methyl-6-(1′-methylbenzimidazol-2-yl)benzimidazole and some intermediates were confirmed by MS and^1H-NMR.The yield was 27.5%(based on 2),and the purity of the product was 99.5%(HPLC,normalized method).The synthetic route has the characteristics of easy access to raw materials,short route,high safety,and easy operation■.
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