Synthesis of 5-methyl-5-deaza nonclassical antifolates as inhibitors of dihydrofolate reductases and as potential antipneumocystis, antitoxoplasma, and antitumor agents
作者:Aleem Gangjee、Jufang Shi、Sherry F. Queener、Louis R. Barrows、Roy L. Kisliuk
DOI:10.1021/jm00074a026
日期:1993.10
A series of 2,4-diamino-5-methyl-6-(anilinomethyl)pyrido[2,3-d]pyrimidines 4-9 were synthesized as 5-deaza nonclassical antifolates containing trimethoxy, dichloro-, or trichlorophenyl substitutions and a N-H, N-CH3, or N-CHO at the 10-position. The compounds were evaluated as inhibitors of dihydrofolate reductases (DHFR) from Pneumocystis carinii (P. carinii), Toxoplasma gondii (T. gondii), rat liver
合成了一系列2,4-二氨基-5-甲基-6-(苯胺基甲基)吡啶并[2,3-d]嘧啶4-9,作为含有三甲氧基,二氯或三氯苯基取代基和NH的5-deaza非经典抗叶酸酯。 ,N-CH3或N-CHO位于10位。该化合物被评估为卡氏肺孢子虫(P. carinii),弓形虫(T. gondii),大鼠肝脏(RL)和干酪乳杆菌(干酪乳杆菌)的二氢叶酸还原酶(DHFR)抑制剂;作为培养中弓形虫和卡氏疟原虫细胞生长的抑制剂;并作为抗肿瘤药。通过改进经典的5-脱氮叶酸的方法制备化合物。2,4-二氨基-5-甲基-6-[((3',4',5'-三甲氧基-N-甲基苯胺基)甲基]吡啶基[2,3-d]嘧啶(5a)表现出高效能和选择性(与RL DHFR相比)对卡氏疟原虫和弓形虫DHFR。化合物5a是已知的弓形虫DHFR最有效和选择性最强的非经典叶酸抑制剂之一。N-10甲酰基类似物2,4-二氨基-5-甲基-6-[(N-甲酰基