作者:Jianhui Yin、Wenjing Huang、Changyong Guo、Chao Liu、Fei Gao、Honggang Hu
DOI:10.1016/j.cclet.2023.109244
日期:2024.6
Tryptophan (Trp) carries a unique heteroaromatic indole sidechain and plays a critical role in peptide or protein modification. Herein, we have reported a metal-free photoinduced N-H alkylation strategy using -aryl glycines for specific modification of tryptophan-containing peptides. The robustness of our approach is demonstrated by its wide substrate scope, excellent isolated yields, as well as almost
A novel oxidative side-chain transformation of α-amino acids and peptides by methyltrioxorhenium/H2O2 system
作者:Francesco Lazzaro、Marcello Crucianelli、Francesco De Angelis、Veronica Neri、Raffaele Saladino
DOI:10.1016/j.tetlet.2004.10.074
日期:2004.12
N-Boc derivatives of Met, Cys, and Trp, the properties of which resemble those of the respective amino acid residues present in proteins, are efficiently oxidized by methyltrioxorhenium and H2O2. A high regioselectivity for the oxidation of these residues when embedded into peptides was also found. (C) 2004 Elsevier Ltd. All rights reserved.