申请人:Jequier Pascal
公开号:US08633202B2
公开(公告)日:2014-01-21
The present invention relates to stable crystalline (6S)—N(5)-formyl-5,6,7,8-tetrahydrofolic acid, commonly referred to as levofolinic acid, in essentially pure 6S diastereomeric form, and to a process for its preparation.
本发明涉及稳定的晶体(6S)-N(5)-甲酰基-5,6,7,8-四氢叶酸,通常称为左旋叶酸酯,其本质上是纯的6S对映异构体形式,以及其制备方法。