Synthesis and biological activity of 5,11-methylenetetrahydro-5-deazahomofolic acid
作者:Aleem Gangjee、Isaac O. Donkor、Roy L. Kisliuk、Yvette Gaumont、Janet Thorndike
DOI:10.1021/jm00106a022
日期:1991.2
key intermediate 3-amino-1-oxo-tetrahydropyrimido[4,5-c] [2,6]naphthyridine (6) was obtained by the regiospecific cyclocondensation of 2,4,6-triaminopyrimidine with ethyl 1-benzyl-3-oxo-4-piperidinecarboxylate followed by halogenation (of the resulting lactam 9) and catalytic hydrogenolysis. Selective reduction of 6 followed by arylation with tert-butyl p-fluorobenzoate, saponification, and coupling
据报道,5,10-亚甲基四氢叶酸(4)的一种稳定,半刚性的模拟物5,11-亚甲基-5-脱氮基-氢脱氢氟甲酸酯(5)的合成可能是胸苷酸合酶(TS)的抑制剂。关键中间体3-氨基-1-氧代-四氢嘧啶[4,5-c] [2,6]萘啶(6)是通过2,4,6-三氨基嘧啶与乙基1-苄基-3-的区域特异性环缩合获得的羰基-4-哌啶羧酸氧代,然后卤化(得到的内酰胺9)和催化氢解。选择性还原6,然后用对氟苯甲酸叔丁酯芳基化,皂化,再与L-谷氨酸二乙酯偶合,然后皂化,得到目标化合物5。测试了标题化合物作为Manca人淋巴瘤细胞生长的抑制剂,也作为Manca细胞和干酪乳杆菌的TS抑制剂,发现该化合物无活性。另外,化合物5也不能抑制干酪乳杆菌和Manca细胞的甘氨酰胺核糖核苷酸甲酰基转移酶。