A novel class of sodium/calcium exchanger inhibitor: design, synthesis, and structure–activity relationships of 3,4-dihydro-2(1H)-quinazolinone derivatives
作者:Hirohiko Hasegawa、Masami Muraoka、Mikiko Ohmori、Kazuki Matsui、Atsuyuki Kojima
DOI:10.1016/j.bmc.2005.03.019
日期:2005.6
Design, synthesis, and structure-activity relationships of 3,4-dihydro-2(1H)-quinazolinone derivatives as inhibitors of the sodium/calcium (Na(+)/Ca(2+)) exchanger are discussed. These studies, based on a lead compound 9a, which was identified in our library, involved systematic modification of three regions and revealed that (1) the 3,4-dihydro-2(1H)-quinazolinone having a tertiary amino alkyl side
设计,合成,和构效关系的3,4-dihydro-2(1H)-quinazolinone衍生物作为钠/钙(Na(+)/ Ca(2+))交换剂的抑制剂进行了讨论。这些研究基于在我们的图书馆中鉴定出的先导化合物9a,涉及三个区域的系统修饰,并揭示了(1)3,4-二氢-2(1H)-喹唑啉酮在3位对活性至关重要,(2)非取代的苯环最适合高活性,并且(3)引入4-取代的哌啶部分增强了活性,特别是4-苄基哌啶-1-基显示出很强的活性。抑制活性。基于这些SAR研究,发现了一种结构新颖且高效的Na(+)/ Ca(2+)交换剂12g(SM-15811)抑制剂。特别是,SM-15811直接抑制Na(+)依赖的Ca(2+)流入,通过具有高效力的心肌细胞中的Na(+)/ Ca(2+)交换剂。该活性比先导化合物9a和SM-15811对心肌缺血再灌注损伤具有保护作用的效力强了将近两个数量级。这些Na(+)/ Ca(2+