申请人:Sepracor, Inc.
公开号:US05616808A1
公开(公告)日:1997-04-01
A two-step process for the conversion of a trans-1-amino-2-hydroxycycloalkane stereoselectively to a cis-1-amino-2-hydroxycycloalkane is disclosed. The novel step, a one-step hydrolysis with formal inversion, can be used to convert an amide of a trans-1-amino-2-hydroxycycloalkane to a cis-1-amino-2-hydroxycycloalkane. Methods for obtaining the trans-1-amino-2-hydroxycycloalkanes and their amides from alkenes are also disclosed, as are the novel, substantially optically pure 1-amino-2-indanols and 1-amido-2-indanols obtained thereby. A preferred process converts indene to cis-1-amino-2-indanol.
本发明揭示了将trans-1-氨基-2-羟基环烷立体选择性地转化为cis-1-氨基-2-羟基环烷的两步过程。新的步骤是一步水解反应,可以用于将trans-1-氨基-2-羟基环烷的酰胺转化为cis-1-氨基-2-羟基环烷。本发明还揭示了从烯烃中获取trans-1-氨基-2-羟基环烷及其酰胺的方法,以及由此获得的新型、基本上光学纯的1-氨基-2-茚醇和1-酰胺基-2-茚醇。首选的方法是将茚转化为cis-1-氨基-2-茚醇。