详细信息
文献类型:期刊文献
中文题名:酒石酸唑吡坦的合成新工艺
英文题名:A Novel Synthetic Process for Zolpidem Tartrate
作者:赵建宏[1];关禹[1];廖凡[1];户晖[1];冀亚飞[1]
机构:[1]华东理工大学药学院绿色制药工艺与技术实验室,上海200237
年份:2017
卷号:48
期号:12
起止页码:1726
中文期刊名:中国医药工业杂志
外文期刊名:Chinese Journal of Pharmaceuticals
收录:CSTPCD;;北大核心:【北大核心2014】;CSCD:【CSCD_E2017_2018】;
语种:中文
中文关键词:酒石酸唑吡坦;合成工艺;N;N'-二环己基碳二亚胺
外文关键词:zolpidem tartrate; synthetic process; N,N'-dicyclohexylcarbodiimide (DCC)
摘要:报道了一条合成酒石酸唑吡坦(1)的新方法。以甲苯(2)为起始原料,经傅-克酰基化反应、溴化反应得3-溴-4-对甲基苯基-4-氧代丁酸(4),不经纯化直接与2-氨基-5-甲基吡啶(5)缩合得2-[6-甲基-2-(对甲基苯基)咪唑并[1,2-a]-吡啶-3-基]乙酸(6),与二甲胺经酸胺缩合反应得唑吡坦(7),最后7与L-(+)-酒石酸成盐得1,总收率36%(以2计),纯度99.8%。其中,由化合物4和5制备6的方法未见文献报道。
A new synthetic process of zolpidem tartrate (1) was reported. 3-Bromo-4-(4-methylphenyl)-4-oxobutanoic acid (4) was synthesized via Friedel-Crafts reaction and bromonation from toluene (2), than the crude product 4 reacted with 2-amino-5-methylpyridine (5) to give 2-[6-methyl-2-(p-tolyl)imidazo[1,2-a]pyridin-3-yl]acetic acid (6). The latter reacted with dimethylamine to afford zolpidem (7). Finally, the target compound 1 was obtained via a salification of 7 and L-(+)-tartaric acid with a total yield of 36% (based on 2) and a purity of 99.8% . The synthesis of compound 6 from 4 and 5 was a new method which have not yet been reported in literature.
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