A class of novel nitronyl nitroxide labeling basic and acidic amino acids: Synthesis, application for preparing ESR optionally labeling peptides, and bioactivity investigations
作者:Jianwei Zhang、Ming Zhao、Guohui Cui、Shiqi Peng
DOI:10.1016/j.bmc.2008.01.022
日期:2008.4.1
beta-carboxyl of L-Asp-OH and the gamma-carboxyl of L-Glu-OH with ethylamino as a linker. It was explored that the synthetic 30 novel ESR labeling amino acid derivatives were stable enough to the reaction conditions of peptide synthesis. Their incorporation led to 12 novel ESR optionally labeling PAK, RGDS, RGDV, and ECG. A series of NO related chemical tests, the in vitro and in vivo assays of these
瞄准任选的ESR标记,将2-(4'-羟基)苯基-4,4,5,5-四甲基咪唑啉-3-氧化物-1-氧基引入到L-Arg-OH的胍基中,以甲基羧基为连接基的L-Lys-OH,和以乙氨基为连接基的L-Asp-OH的β-羧基和L-Glu-OH的γ-羧基。研究表明,合成的30种新型ESR标记氨基酸衍生物对肽合成的反应条件足够稳定。他们的加入导致了12种新颖的ESR,可选地标记了PAK,RGDS,RGDV和ECG。一系列与NO相关的化学测试,这些肽的体外和体内测定证实了该策略是可行的。