Process for the preparation of the enant iomeric forms of 2-substituted 2- (2, 5-dioxoimidazolidin-1-yl) -acetic acid derivatives
申请人:——
公开号:US20030054507A1
公开(公告)日:2003-03-20
The present invention relates to a process for the preparation of the enantiomeric forms of 2-substituted 2-(2,5-dioxoimidazolidin-1-yl)acetic acid derivatives of the formula I,
1
wherein R
1
, R
2
and R
3
have the meanings given in the claims, by stereodifferentiating conversion of mixtures of the enantiomers with the aid of enzymes.
本发明涉及一种制备式 I 的 2-取代 2-(2,5-二氧代咪唑啉-1-基)乙酸衍生物对映体的工艺、
1
其中 R
1
, R
2
和 R
3
具有权利要求中给出的含义,方法是借助酶将对映体混合物进行立体分化转化。