Novel ester linked glycosyl amino acids: convenient building blocks for the synthesis of glycopeptide libraries
作者:Richard J. Tennant-Eyles、Antony J. Fairbanks
DOI:10.1016/s0957-4166(99)00013-0
日期:1999.1
The completely orthogonally protected aspartic acid derivative FmocAsp(OBn)OtBu is readily synthesized on a large scale. Deprotection of the β-carboxylic acid allows coupling to various sugar derivatives via free hydroxyl groups to produce novel glycosyl amino acids. Subsequent deprotection of either the α-acid or nitrogen is achieved cleanly to allow elaboration into an oligopeptide, whilst selective
完全正交保护的天冬氨酸衍生物FmocAsp(OBn)O t Bu易于大规模合成。β-羧酸的去保护基团允许通过游离羟基与各种糖衍生物偶联以产生新的糖基氨基酸。干净地实现随后的α-酸或氮的脱保护,以使其能够精加工成寡肽,同时也易于实现对PMB保护的糖羟基的选择性脱保护。这样的新颖的糖基氨基酸构件可以用于新颖的糖肽文库的组合合成。