New Fluorinated Peptidomimetics through Tandem Aza-Michael Addition to α-Trifluoromethyl Acrylamide Acceptors: Synthesis and Conformational Study in Solid State and Solution
作者:Santos Fustero、Gema Chiva、Julio Piera、Juan F. Sanz-Cervera、Alessandro Volonterio、Matteo Zanda、Carmen Ramirez de Arellano
DOI:10.1021/jo9001867
日期:2009.4.17
from the highly efficient aza-Michael addition of different amines to α-trifluoromethyl acrylamide acceptors. Subsequent deprotection of the amino group furnishes the key common intermediate for the synthesis of other families of peptidomimetics: dipeptides, tripeptides, peptidomimetics containing a urea moiety, and structures containing two units of α-trifluoromethyl-β2-alanine. Finally, a conformational
合成了一系列包含水解稳定的CH 2 CH(CF 3)CO单元的部分修饰的Retro(PMR)ψ[NHCH 2 ]肽模拟物。第一种拟肽模拟物是从不同的胺向α-三氟甲基丙烯酰胺受体的高效氮杂-迈克尔加成反应中获得的。氨基的脱保护配料密钥常见的肽模拟物的其他家庭的合成中间体:含有α -三氟甲基- β的两个单元的二肽,三肽,含有脲部分肽模拟物,和结构2-丙氨酸 最后,借助X射线分析和NMR技术对几种新合成的拟肽进行了构象研究,结果表明,无论是在固态还是在溶液中,其结构均呈β-转角状构象。