A new method for producing antifolate agents having glutamic acid part in their structure is developed by protecting carboxyl groups of glutamic acid or its N-subsituted derivatives as cyanomethyl ester to give compounds of formula (II) which are hydrolyzed under very mild conditions to afford antifolate agents in high yield with high analytical and optical purity.
一种新的制备具有谷
氨酸部分结构的抗叶酸剂的方法被开发出来,通过保护谷
氨酸或其N-取代衍
生物的羧基为
氰甲酯,得到式(II)的化合物,这些化合物在非常温和的条件下
水解,以高产率和高分析和光学纯度得到抗叶酸剂。