Design and synthesis of new 1,4-dihydropyridines containing 4(5)-chloro-5(4)-imidazolyl substituent as a novel calcium channel blocker
作者:Maryam Iman、Asghar Davood、Ali Reza Nematollahi、Ahmad Rerza Dehpoor、Abbas Shafiee
DOI:10.1007/s12272-011-0902-9
日期:2011.9
New analogues of nifedipine, in which the ortho-nitro phenyl group at position 4 has been replaced by 4(5)-chloro-5(4)-imidazolyl substituent and which are able to interact with the receptor by hydrogen binding were designed, synthesized, and evaluated as calcium channel antagonists. The designed dihydropyridines were synthesized using the Hantzsch condensation and evaluated as calcium channel antagonists
设计、合成了硝苯地平的新类似物,其中 4 位的邻硝基苯基已被 4(5)-氯-5(4)-咪唑基取代,并且能够通过氢键与受体相互作用,并评估为钙通道拮抗剂。设计的二氢吡啶是使用 Hantzsch 缩合合成的,并使用豚鼠回肠纵向平滑肌的高 K+ 收缩评估为钙通道拮抗剂。使用 AutoDock4 程序进行对接研究,并使用多元线性回归获得 QSAR 方程。我们的计算研究表明,酯的氧 (O10) 和咪唑环的 N3' 分别与 HIS 363 的 NH 和 LYS354 的 NH 形成氢键相互作用,BEHp5 和 RDF075p 的总和是最重要的描述符。钙通道拮抗剂评估的结果表明,增加 C3 和 C5 酯取代基的链长会增加活性。最有效的化合物是双苯丙酯 (5l) 衍生物,因为它比参考药物硝苯地平的活性更强,而且双苯乙酯 (5k) 衍生物的活性与硝苯地平相当。目前的研究表明,4(5)-氯-5(4)-咪唑基部