摘要
4-(3-氧代-4-吗啉基)苯胺与氯甲酸苄酯发生取代反应制得N-[4-(3-氧代-4-吗啉基)苯基]氨基甲酸苄酯,后者与(S)-N-[(2-乙酰氧基-3-氯)丙基]乙酰胺经缩合制得(S)-3-[4-(3-氧代-4-吗啉基)苯基]-5-乙酰胺甲基-1,3-噁唑烷-2-酮,再经酸性水解即可制得合成利伐沙班的重要中间体(S)-3-[4-(3-氧代-4-吗啉基)苯基]-5-氨甲基-1,3-噁唑烷-2-酮,总收率约35%。
4-(3-Oxomorpholin-4-yl)aniline was reacted with benzyl chloroformate to afford benzyl AT-[4-(3- oxomorpholin-4-yl) phenyl] carbamate. The latter was then condensed with (S)-N-(2-acetoxy-3-chloro)propylacetamide to afford (S)-3-[4-(3-oxomorpholin-4-yl)phenyl]-5-acetaminomethyl-1,3-oxazolidin-2-one, which was hydrolyzed under acidic condition to afford (S)-3-[4-(3-oxomorpholin-4-yl)phenyl]-5-aminomethyl-1,3-oxazolidin-2-one, the key intermediate for rivaroxaban. The total yield was about 35 %.
出处
《中国医药工业杂志》
CAS
CSCD
北大核心
2013年第5期431-433,共3页
Chinese Journal of Pharmaceuticals
基金
国家973项目(2012CB724501)
关键词
利伐沙班
中间体
噁唑烷酮
合成
rivaroxaban
intermediate
oxazolidinone
synthesis