Design, synthesis and biological evaluation of cyclic angiotensin II analogues with 3,5 side-Chain bridges
作者:Panagiota Roumelioti、Ludmila Polevaya、Panagiotis Zoumpoulakis、Nektarios Giatas、Ilze Mutule、Tatjana Keivish、Anastasia Zoga、Demetrios Vlahakos、E. Iliodromitis、Demetrios Kremastinos、Simona Golic Grdadolnik、Thomas Mavromoustakos、John Matsoukas
DOI:10.1016/s0960-894x(02)00474-2
日期:2002.9
agonist peptides is an essential stereo-electronic feature for Angiotensin II to exert its biological activity. A non-peptide mimetic of ANG II, 1-[2'-[(N-benzyl)tetrazol-5-yl]biphenyl-4-yl]methyl]-2-hydroxymethylbenzimidazole (BZI8) has been designed and synthesized. This molecule is more rigid and much less active than AT(1) non-peptide mimetic losartan probably because it lacks to mimic the orientation
新型酰胺连接的血管紧张素II(ANG II)环状类似物:γ,ε-环(3,5)-[Sar(1)-Glu(3)-Lys(5)-Ile(8)] ANG II(I)和γ,ε-环(3,5)-[Sar(1)-Glu(3)-Lys(5)-Phe(8)] ANG II(II)的设计,合成和生物测定依次在麻醉的兔子中进行揭示对受体激活很重要的结构环簇特征。Ile位于8位的类似物I是血管紧张素II的抑制剂,而Phe位于8位的类似物II是激动剂。据报道,环状化合物颠倒了位置3和5之间的连接。相似的结果表明,位置3和5不控制合成类似物的生物学活性。似乎还表明,激动剂肽中的芳香环簇(Tyr-His-Phe)是血管紧张素II发挥其生物学活性所必需的立体电子特征。设计并合成了ANG II的非肽模拟物,即1- [2'-[(N-苄基)四唑-5-基]联苯-4-基]甲基] -2-羟基甲基苯并咪唑(BZI8)。该分子比AT(1)