作者:Michael R. Carrasco、Oscar Silva、Katherine A. Rawls、Marisol S. Sweeney、Adria A. Lombardo
DOI:10.1021/ol061289d
日期:2006.8.1
Peptides containing N-alkylaminooxy amino acids were chemoselectively alkylated with allylic, benzylic, and alpha-carbonyl bromides, N-ethylmaleimide, and hexyl acrylate in mildly acidic aqueous/organic solutions. Alkylation at the aminooxy nitrogen proceeds in good yields with excellent to complete chemoselectivity in the presence of all common amino acids except cysteine. This reaction complements
在温和的酸性水溶液/有机溶液中,将含有N-烷基氨基氧基氨基酸的肽与烯丙基,苄基和α-羰基溴化物,N-乙基马来酰亚胺和丙烯酸己酯进行化学选择性烷基化。在存在除半胱氨酸之外的所有常见氨基酸的情况下,氨氧基氮上的烷基化反应的收率高,且具有优异的化学选择性。该反应补充了N-烷基氨基氧基的选择性糖基化和酰化,并为合成包含多种新糖肽和新脂肽的肽阵列提供了途径。