申请人:Porton Fine Chemicals Ltd.
公开号:US20130143908A1
公开(公告)日:2013-06-06
A method for preparing a rosuvastatin calcium intermediate represented by formula I. The method includes: hydrolyzing an ester compound represented by formula II (in which, R represents C1-C5) in the presence of a metal compound to obtain a carboxylic acid compound represented by formula III; and reducing the carboxylic acid compound in the presence of a reductant.
一种制备公式I所代表的罗舒伐他汀钙中间体的方法。该方法包括:在金属化合物的存在下水解公式II所代表的酯化合物(其中,R代表C1-C5),以获得公式III所代表的羧酸化合物;并在还原剂的存在下还原羧酸化合物。