Design, Synthesis, and Biological Evaluation of Classical and Nonclassical 2-Amino-4-oxo-5-substituted-6-methylpyrrolo[3,2-<i>d</i>]pyrimidines as Dual Thymidylate Synthase and Dihydrofolate Reductase Inhibitors
作者:Aleem Gangjee、Wei Li、Jie Yang、Roy L. Kisliuk
DOI:10.1021/jm701052u
日期:2008.1.1
and synthesized a classical antifolate N-4-[(2-amino-6-methyl-4-oxo-3,4-dihydro-5 H-pyrrolo[3,2- d]pyrimidin-5-yl)methyl]benzoyl}- l-glutamic acid 4 and 11 nonclassical analogues 5- 15 as potential dual thymidylate synthase (TS) and dihydrofolate reductase (DHFR) inhibitors. The key intermediate in the synthesis was N-(4-chloro-6-methyl-5 H-pyrrolo[3,2- d]pyrimidin-2-yl)-2,2-dimethylpropanamide, 29,
我们设计并合成了一种经典的抗叶酸剂 N-4-[(2-amino-6-methyl-4-oxo-3,4-dihydro-5 H-pyrrolo[3,2-d]pyrimidin-5-yl)methyl ]苯甲酰基}-l-谷氨酸 4 和 11 个非经典类似物 5-15 作为潜在的双胸苷酸合酶 (TS) 和二氢叶酸还原酶 (DHFR) 抑制剂。合成的关键中间体是 N-(4-chloro-6-methyl-5H-pyrrolo[3,2-d]pyrimidin-2-yl)-2,2-二甲基丙酰胺, 29, 其中各种 5-benzyl连接了取代基。对于经典类似物 4,从 N-苄基化反应中获得的酯被脱保护并与 l-谷氨酸二乙酯偶联,然后进行皂化。化合物 4 是人 TS(IC 50 = 46 nM,比培美曲塞强约 206 倍)和 DHFR(IC 50 = 120 nM,比培美曲塞强约 55 倍)的有效双重抑制剂。