Synthesis and Structure-Activity Relationships of 2-(4-Benzhydryl-1-piperazinyl)-1-phenylethanols as New Calcium Blocker.
作者:Yutaka NOMURA、Tomio YAMAKAWA、Koichiro NISHIOKA、Tomohiro OMURA、Norihisa MIYAKE、Mitsuo MASAKI、Hiroyuki NOHIRA
DOI:10.1248/cpb.43.241
日期:——
A series of 2-(4-benzhydryl-1-piperazinyl)-1-phenylethanols (4) was synthesized and evaluated for calcium entry-blocking activity, assessed as inhibitory activity on calcium current in rat hippocampal pyramidal neurons by using a patch-clamp technique (10-5 M), and cerebral visodilating activity, assessed in terms of increase of vertebral blood flow after intravenous administration (1 mg/kg) in anesthetized dogs. Alkoxy substituents on the phenyl ring of the phenylethanol moiety conferred potent calcium entry-blocking activity and potent cerebral vesodilating activity.Among these compounds, 4i (NC-1100) was selected as the best analog. Some pharmacological properties of 4i are presented.
一系列2-(4-二苯甲基-1-哌嗪基)-1-苯乙醇(4)被合成并评估了它们阻止钙进入的活性,这种活性通过使用膜片钳技术(10-5 M)在鼠海马椎体神经元中测定钙电流的抑制活性,以及脑血管舒张活性,这种活性根据静脉给药后(1 mg/kg)在麻醉狗中椎动脉血流增加的程度来评估。苯乙醇部分的苯环上的烷氧基取代赋予了强大的阻止钙进入的活性和强大的脑血管舒张活性。在这些化合物中,4i(NC-1100)被选为最佳类似物。一些4i的药理特性被呈现。