申请人:Sandoz Ltd.
公开号:US05412137A1
公开(公告)日:1995-05-02
A process for preparing compounds of the formula ##STR1## where X.sub.1 and X.sub.2 are independently O or S, and R.sub.1 is as defined herein, R.sub.2, R.sub.3, and R.sub.4 are each independently straight or branched chain (C.sub.1-4)alkyl, and pharmaceutically acceptable salts, physiological hydrolyzable esters, and pro-drug forms thereof, which are useful as hypoglycemic agents.
制备化合物的方法,化合物的结构式为##STR1## 其中X.sub.1和X.sub.2分别独立地为O或S,R.sub.1如本文所定义,R.sub.2、R.sub.3和R.sub.4分别独立地为直链或支链(C.sub.1-4)烷基,以及其药用盐、生理可水解酯和前药形式,这些化合物可用作降糖药物。