申请人:DAIICHI SANKYO COMPANY, LIMITED
公开号:US20150353577A1
公开(公告)日:2015-12-10
It is an object of the present invention to provide a method for efficiently producing (1S,4S,5S)-4-bromo-6-oxabicyclo[3.2.1]octan-7-one (1), which is important as an intermediate compound for the production of an FXa-inhibiting compound. A method for producing (1S,4S,5S)-4-bromo-6-oxabicyclo[3.2.1]octan-7-one (1), which comprises treating an (R)-α-phenylethylamine salt of (S)-3-cyclohexene-1-carboxylic acid with 1,3-dibromo-5,5-dimethylhydantoin or N-bromosuccinimide in a solvent.
本发明的目的是提供一种有效生产(1S,4S,5S)-4-溴-6-氧代-3.2.1]辛烷-7-酮(1)的方法,该方法对于生产FXa抑制化合物的中间体至关重要。一种生产(1S,4S,5S)-4-溴-6-氧代-3.2.1]辛烷-7-酮(1)的方法,包括用1,3-二溴-5,5-二甲基海因或溴代琥珀酰亚胺处理(S)-3-环己烯-1-羧酸的(R)-α-苯乙胺盐在溶剂中。