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首页> 外文期刊>Archiv der Pharmazie >Synthesis, QSAR and Calcium Channel Antagonist Activity of New 1,4-Dihydropyridine Derivatives Containing 1-Methyl-4,5-dichloroimidazolyl Substituents.
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Synthesis, QSAR and Calcium Channel Antagonist Activity of New 1,4-Dihydropyridine Derivatives Containing 1-Methyl-4,5-dichloroimidazolyl Substituents.

机译:含1-甲基-4,5-二氯咪唑基取代基的新型1,4-二氢吡啶衍生物的合成,QSAR和钙通道拮抗活性。

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摘要

A group of dialkyl and diarylester analogues of nifedipine, in which the ortho-nitrophenyl group at position 4 was replaced by a 1-methyl-4,5-dichloroimidazolyl substituent, were synthesized and evaluated as calcium-channel antagonists using the high K(+ )concentration of guinea-pig ileum longitudinal smooth muscle. The structure of all compounds was confirmed by IR,( 1)H-NMR, and mass spectra. The calcium-channel antagonist activity of compounds 10a-f demonstrated that compound 10b was the most active and 10f the least active one. With unsymmetrical diesters 12a-k, the most active compound was the ethyl, phenethyl derivative. Structural parameters on the calcium-channel antagonist activity were evaluated by QSAR analysis and a linear correlation was found between the -log IC(50) values of these compounds and their constitutional and topological properties.
机译:合成了一组硝苯地平的二烷基和二芳基酯类似物,其中第4位的邻硝基苯基被1-甲基-4,5-二氯咪唑基取代基取代,并使用高K(+ )豚鼠回肠纵向平滑肌的浓度。通过IR,(1)H-NMR和质谱确认所有化合物的结构。化合物10a-f的钙通道拮抗活性表明,化合物10b活性最高,而10f活性最低。对于不对称的二酯12a-k,活性最高的化合物是乙基苯乙基衍生物。通过QSAR分析评估了钙通道拮抗剂活性的结构参数,发现这些化合物的-log IC(50)值与其组成和拓扑特性之间存在线性关系。

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