发明申请
US20090326227A1 Process for the Preparation of Biphosphonic Acids and Salts Thereof 审中-公开
制备双膦酸及其盐的方法

Process for the Preparation of Biphosphonic Acids and Salts Thereof
摘要:
A process for the preparation of biphosphonic acids and pharmaceutical acceptable salts thereof, comprises reacting a carboxylic acid with phosphorous trichloride and phosphorous acid in the presence of an aprotic polar solvent. Formula (I):
信息查询
0/0