Benzoyl Ring Halogenated Classical 2-Amino-6-methyl-3,4-dihydro-4-oxo-5-substituted Thiobenzoyl-7<i>H</i>-pyrrolo[2,3-<i>d</i>]pyrimidine Antifolates as Inhibitors of Thymidylate Synthase and as Antitumor Agents
作者:Aleem Gangjee、Hiteshkumar D. Jain、John J. McGuire、Roy L. Kisliuk
DOI:10.1021/jm040144e
日期:2004.12.1
folate-based thymidylate synthase (TS) inhibitors that require folylpoly-gamma-glutamate synthetase (FPGS) for their antitumor activity, we designed and synthesized two classical 6-5 ring-fused analogues, N-[4-[(2-amino-6-methyl-3,4-dihydro-4-oxo-7H-pyrrolo[2,3-d]pyrimidin-5-yl)thio]-2 '-fluorobenzoyl]-l-glutamic acid (4) and N-[4-[(2-amino-6-methyl-3,4-dihydro-4-oxo-7H-pyrrolo[2,3-d]pyrimidin-5-yl)thio]-2
为了避免对临床上需要叶酸聚γ-谷氨酸合成酶(FPGS)的基于叶酸的胸苷酸合酶(TS)抑制剂的耐药性和毒性,我们设计并合成了两个经典的6-5环稠合类似物,N- [4-[((2-氨基-6-甲基-3,4-二氢-4-氧代-7H-吡咯并[2,3-d]嘧啶-5-基)硫代] -2'-氟苯甲酰基] -1-谷氨酸(4)和N- [4-[(2-氨基-6-甲基-3,4-二氢-4-氧代-7H-吡咯并[2,3-d]嘧啶-5-基)硫代] -2'-氯苯甲酰基] -1-谷氨酸(5),用作TS抑制剂和抗肿瘤剂。这些经典类似物合成中的关键中间体是硫醇10和11,它们分别通过还原硝基并随后将胺重氮化而分别从相应的硝基化合物6和7获得。类似物4和5的合成是通过将2-卤代-4-巯基苯甲酸乙酯(16或17)的钠盐氧化加成到2-氨基-6-甲基-3,4-二氢-4-基上而完成的。在碘存在下的oxo-7H-吡咯并[2,3-d]嘧啶(18)。使