Synthesis and biological activity of novel calcium channel blockers: 2,5-dihydro-4-methyl-2-phenyl-1,5-benzothiazepine-3-carboxylic acid esters and 2,5-dihydro-4-methyl-2-phenyl-1,5-benzodiazepine-3-carboxylic acid esters
作者:Karnail S. Atwal、James L. Bergey、Anders Hedberg、Suzanne Moreland
DOI:10.1021/jm00387a009
日期:1987.4
5-Dihydro-4-methyl-2-phenyl-1,5-benzothiazepine-3-carboxylic acid esters, based on the structures of dihydropyridines and diltiazem, were synthesized from o-aminothiophenol and 2-(phenylmethylene)- 3-oxobutanoic acid esters. Biological evaluation in the potassium-depolarized rabbit aorta suggests that these compounds are calcium channel blockers. The in vitro activity was further confirmed by electrophysiological
基于二氢吡啶和地尔硫ze的结构,由邻氨基苯硫基苯酚和2-(苯基亚甲基)-3-合成了2,5-二氢-4-甲基-2-苯基-1,5-苯并硫氮杂-3-羧酸酯氧代丁酸酯。钾去极化的兔主动脉的生物学评估表明,这些化合物是钙通道阻滞剂。通过电生理技术进一步证实了体外活性。对芳族取代的结构活性研究表明,2-硝基衍生物是体外最有效的化合物(IC50 = 0.3 microM),而乙基酯比相应的甲基酯稍好。用氮原子代替硫,得到2,5-二氢-4-甲基-2-(3-硝基苯基)-1,5-苯并二氮杂-3-羧酸乙酯 其活性仅略低于相应的苯并噻氮平。在带有(二甲基氨基)乙基(存在于地尔硫卓)的2,5-二氢-4-甲基-2-(3-硝基苯基)-1,5-苯并硫氮杂-3-羧酸甲酯中将氮衍生化,得到2, 5-二氢-5-[(二甲基氨基)乙基] -4-甲基-2-(3-硝基苯基)-1,5-苯并硫氮杂-3-羧酸甲酯,发现在体外与地尔硫卓等效。使