Synthesis and KCNQ2 opener activity of N-(1-benzo[1,3]dioxol-5-yl-ethyl, N-[1-(2,3-dihydro-benzofuran-5-yl)-ethyl, and N-[1-(2,3-dihydro-1H-indol-5-yl)-ethyl acrylamides
作者:Yong-Jin Wu、Li-Qiang Sun、Huan He、Jie Chen、John E Starrett、Pierre Dextraze、Jean-Paul Daris、Christopher G Boissard、Rick L Pieschl、Valentin K Gribkoff、Joanne Natale、Ronald J Knox、David G Harden、Mark W Thompson、William Fitzpatrick、David Weaver、Dedong Wu、Qi Gao、Steven I Dworetzky
DOI:10.1016/j.bmcl.2004.06.035
日期:2004.9
Because of its high potency and moderate efficacy as well as its convenient synthesis, (+/-)-3 was selected as a reference compound for analyzing efficacies of KCNQ openers in electrophysiology studies. Compounds (S)-4 and (S)-5 demonstrated significant activity in reducing neuronal hyperexcitability in rat hippocampal slices. The synthesis and the KCNQ2 opener activity of these acrylamides are described
生物甾体置换研究导致鉴定出N-(1-苯并[1,3]二氧杂-5-基-乙基)-3-(2-氯-苯基)-丙烯酰胺((S)-3)是高效的KCNQ2开放剂和3-(2,6-二氟-苯基)-N- [1-(2,3-二氢-苯并呋喃-5-基)-乙基]-丙烯酰胺((S)-4)和N- [1-(2,3-二氢-1H-吲哚-5-基)-乙基] -3-(2-氟-苯基)-丙烯酰胺((S)-5)作为高效的KCNQ2开启剂。相反,即使在最高测试浓度(10 microM)下,它们各自的R对映异构体也显示出明显较少或没有明显的KCNQ2开启剂活性。由于其高效,适中的功效以及方便的合成方法,(+/-)-3被选作参考化合物,用于在电生理研究中分析KCNQ开放剂的功效。化合物(S)-4和(S)-5表现出显着的活性,可降低大鼠海马切片的神经元过度兴奋性。描述了这些丙烯酰胺的合成和KCNQ2开启剂活性。