Synthesis of classical and nonclassical 2-amino-4-oxo-6-benzylthieno-[2,3-<i>d</i>]pyrimidines as potential thymidylate synthase inhibitors
作者:Aleem Gangjee、Yibin Qiu、Roy L. Kisliuk
DOI:10.1002/jhet.5570410613
日期:2004.11
A series of seven nonclassical 2-amino-4-oxo-6-substituted thieno[2,3-d]pyrimidines 2-8 and one classical N-[4-(2-amino-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-6-ylmethyl)benzoyl]-L-glutamic acid 9 (Table I) were designed as the first in a series of 6-substituted 6-5 fused ring analogs as potential thymidylate synthase (TS) inhibitors and as antitumor agents. The target compounds were synthesized via
一系列七个非经典的2-氨基-4-氧代-6-取代的噻吩并[2,3- d ]嘧啶2-8和一个经典的N- [4-(2-氨基-4-氧代-3,4-二氢噻吩并) [2,3 - d ]嘧啶-6-基甲基)苯甲酰基] -L-谷氨酸9(表I)被设计为一系列6-取代的6-5稠合环类似物中的第一个,作为潜在的胸苷酸合酶(TS)抑制剂和抗肿瘤药。目标化合物通过适当取代的碘代苯与烯丙醇的Heck偶联,然后使用氰基乙酸酯和硫粉环化,得到取代的噻吩。然后将所得的噻吩与氯甲hydro盐酸盐进行环缩合,得到2-氨基-4-氧代-6-取代的噻吩并[2,3- d ]嘧啶2-8和26。水解26,然后与L-谷氨酸二乙酯偶联,得到28。通过水解28得到经典的类似物9。除了IC 50值为100μm的9个化合物外,所有目标化合物均未抑制23μm的人重组胸苷酸合酶。