申请人:The Trustees of Princeton University
公开号:US04927828A1
公开(公告)日:1990-05-22
The diastereoisomeric forms of N-(4-[2-(2-amino-4-hydroxy-5,6,7,8-tetrahydropyrido[2,3-d]-pyrimidin-6-yl) ethyl]benzoyl)-L-glutamic acid are antineoplastic agents. The compounds are prepared by separation of the diastereoisomeric form of the correspondingly protected glutamic derivatives and hydrolytic or hydrogenolytic removal of carboxylic acid and/or amino protecting groups. Typical embodiments are the (R,S) and (S,S) forms of N-(4-[2-(2-amino-4-hydroxy-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidin-6-yl)e thyl]benzoyl)-L-glutamic acid.
N-(4-[2-(2-氨基-4-羟基-5,6,7,8-四氢吡咯[2,3-d]嘧啶-6-基)乙基]苯甲酰)-L-谷氨酸的非对映异构体形式是抗肿瘤剂。该化合物通过分离相应保护的谷氨酸衍生物的非对映异构体形式,并通过羧酸和/或氨基保护基的水解或氢解去除而制备。典型实施例是N-(4-[2-(2-氨基-4-羟基-5,6,7,8-四氢吡咯[2,3-d]嘧啶-6-基)乙基]苯甲酰)-L-谷氨酸的(R,S)和(S,S)形式。