[EN] MYCOPHENOLIC ACID RECYCLING IN A METHOD FOR THE PREPARATION OF MYCOPHENOLATE MOFETIL<br/>[FR] RECYCLAGE D'ACIDE MYCOPHÉNOLIQUE DANS UN PROCÉDÉ DE PRÉPARATION DE MYCOPHÉNOLATE MOFÉTIL
申请人:DSM IP ASSETS BV
公开号:WO2009010503A1
公开(公告)日:2009-01-22
The present invention provides a method for the preparation of mycophenolate mofetil wherein mycophenoiic acid is mixed with 2-morpholinoethanol in a water-immiscible solvent, followed by addition of water and adjustment of the pH to a value ranging from 0 to 3 or ranging from 7 to 10 and separating the organic and aqueous phases. Mycophenolate mofetil is isolated from the relevant phase and the mycophenoiic acid present in the alternate phase is re-used in a conversion of mycophenoiic acid to mycophenolate mofetil.
本发明提供了一种制备霉酚酸酯的方法,其中将霉酚酸与2-吗啉乙醇混合在不溶于水的溶剂中,然后加入水并将pH值调整到0至3或7至10之间,并分离有机相和水相。从相关相中分离出霉酚酸酯,并将另一相中存在的霉酚酸重新用于将霉酚酸转化为霉酚酸酯。