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。