An optically active lactic acid derivative represented by the following formula (I): ##STR1## wherein R is a saturated or unsaturated hydrocarbon group of a linear, branched or cyclic structure having 4 to 20 carbon atoms; Ra is --CO--Rb or --CH.sub.2 --Rc wherein Rb is a releasable chemically active group, and Rc is a releasable chemically active group; and C with * represents an asymmetric carbon atom.
一种光学活性的
乳酸衍
生物,其
化学式如下(I):##STR1## 其中,R是一个具有4至20个碳原子的线性、支链或环状结构的饱和或不饱和碳氢基团;Ra是--CO--Rb或--CH.sub.2--Rc,其中Rb是一个可释放的
化学活性基团,Rc是一个可释放的
化学活性基团;C与*表示一个不对称的碳原子。