Structural variations of piritrexim, a lipophilic inhibitor of human dihydrofolate reductase: synthesis, antitumor activity and molecular modeling investigations
作者:Mario Zink、Harald Lanig、Reinhard Troschütz
DOI:10.1016/j.ejmech.2004.09.001
日期:2004.12
Piritrexim (PTX) (1), a lipophilic inhibitor of the human dihydrofolate reductase, has been evaluated as an anticancer agent. The synthesis of four structural variations (2-5) of PTX is reported. The PTX analogues 2-5 were obtained by reaction of suitable C3-building blocks with pyrimidine-2,4,6-triamine (14) or with cyanacetamide (7) and guanidine (10). The evaluation of 2-4 for antitumor activity
人二氢叶酸还原酶的亲脂性抑制剂Piritrexim(PTX)(1)已被评估为抗癌剂。报道了PTX的四个结构变异(2-5)的合成。通过合适的C3结构单元与嘧啶-2,4,6-三胺(14)或与氰乙酰胺(7)和胍(10)反应获得PTX类似物2-5。2-4针对一组60种人类癌细胞系的抗肿瘤活性的评估显示出对细胞系生长的抑制作用。这些数据得到分子建模和对接研究的支持,这些研究表明化合物2-4在DHFR活性位点内具有相同的结合模式。此外,估计的配体结合能与实验活性数据非常吻合。