Preparation of building blocks for glycopeptide synthesis by glycosylation of Fmoc amino acids having unprotected carboxyl groups
作者:Lourdes A. Salvador、Mikael Elofsson、Jan Kihlberg
DOI:10.1016/0040-4020(95)00224-v
日期:1995.5
Nα-Fmoc aminoacids with an unprotected α-carboxyl group have been glycosylated with carbohydrate 1,2-trans peracetates using Lewis acids as promoters. Aliphatic and phenolic O- and S-glycosides of aminoacids, with a 1,2-trans anomeric configuration, were obtained as products in 34–65% yields. The glycosylated buildingblocks have the protective groups of choice (i.e. O-acetyl and Nα-Fmoc) for direct