申请人:Krka Tovarna Zdravil, D.D., Novo Mesto
公开号:EP2332916A3
公开(公告)日:2011-08-03
The present invention describes a novel process for the preparation of marbofloxacin and intermediate thereof comprising reaction of ammonium hydroxide of formula III, NR1R2R3R4 wherein R1, R2, R3 and R4 are independently selected from the group of H, alkyl, alkylaryl, aryl and/or heteroaryl, with compound of formula II,
wherein R is selected from H, alkyl, arylalkyl, alkali metal cation, , NH4 cation, NR1R2R3R4cation; X is halogen, such as chloro, bromo, fluoro, piperazinyl, which may be substituted or unsubstituted, and R' is selected from H, formyl or COOAlkyl.
本发明描述了一种制备马泊沙星及其中间体的新工艺,包括将式III的氨水与式II的化合物反应制备。其中,式III中的R1、R2、R3和R4分别从H、烷基、烷基芳基、芳基和/或杂环芳基中独立选择;式II中的R从H、烷基、芳基烷基、碱金属阳离子、NH4阳离子、NR1R2R3R4阳离子中选择;X为卤素,例如氯、溴、氟、哌嗪基,可以是取代或未取代的;R'从H、甲酰或COO烷基中选择。