Classical and Nonclassical Furo[2,3-d]pyrimidines as Novel Antifolates: Synthesis and Biological Activities
作者:Aleem Gangjee、Rajesh Devraj、John J. McGuire、Roy L. Kisliuk、Sherry F. Queener、Louis R. Barrows
DOI:10.1021/jm00034a015
日期:1994.4
(recombinant) human, P. carinii, T. gondii, and Lactobacillus casei DHFRs. The classical analogues showed moderate to good DHFR inhibitory activity (IC50 10(-6)-10(-8) M) with the N-CH3 analogue 2 about twice as potent as 1. The nonclassical analogues were inactive with IC50S > 3 x 10(-5) M. The classical analogues were also evaluated as inhibitors of TS (L. casei, (recombinant) human and human CCRF-CEM), glycinamide
含有新型呋喃[2,3-d]嘧啶环系统的经典抗叶酸类似物,其中包括N- [4- [N-[(2,4-二氨基呋喃[2,3-d]嘧啶-5-基]甲基]氨基合成了[苯甲酰基] -L-谷氨酸(1)及其N-9甲基类似物2作为潜在的胸苷酸合酶(TS)和二氢叶酸还原酶(DHFR)双重抑制剂和抗肿瘤剂。四种非经典的抗叶酸药,2,4-二氨基-5-(苯胺基甲基)呋喃[2,3-d]嘧啶3-6和3,4,5-三甲氧基,3,4,5-三氯,3,4-二氯,还分别合成了苯环中的2,5-二甲氧基取代基和2,5-二甲氧基取代基作为DHFR的潜在抑制剂,包括卡氏肺孢子虫和刚地弓形虫的DHFR,它们是艾滋病患者中机会性感染的生物。通过关键中间体2,4-二氨基-5-(氯甲基)呋喃并[2,3-d]嘧啶与适当的(对氨基苯甲酰基)-L-谷氨酸或取代的苯胺进行亲核置换,可获得经典和非经典类似物。依次由2,4-二氨基-6-羟基嘧啶和1,3-二氯丙酮