The design of dipeptide helical mimetics: The synthesis, tachykinin receptor affinity and conformational analysis of 1,1,6-trisubstituted indanes
作者:David C. Horwell、William Howson、Giles S. Ratcliffe、Henriëtte M.G. Willems
DOI:10.1016/0968-0896(95)00169-7
日期:1996.1
The design and synthesis of conformationally constrained, nonpeptide templates (1,1,6-trisubstituted indanes) which allow the incorporation of two adjacent amino acid side chains, plus a third binding group in an orientation similar to that found in alpha-helices are reported. Six racemic and two homochiral Phe-Phe and Trp-Phe mimetics were synthesised and evaluated in tachykinin receptor binding assays
报道了构象受限的非肽模板(1,1,6-三取代的茚满)的设计和合成,该模板允许并入两个相邻的氨基酸侧链,以及与α-螺旋相似方向的第三个结合基团。合成了六个外消旋和两个同手性的Phe-Phe和Trp-Phe模拟物,并在速激肽受体结合试验中评估了它们作为内源肽结合构象的分子探针。发现一些以微摩尔亲和力结合至NK1和/或NK3受体。用X射线晶体分析法分析了一种手性茚满的构型,(1R)-N-(((S)-1-羟甲基苄基)-1,6-二苄基茚满-1-羰基酰胺)。 α-螺旋构象。