paper describes a unified approach toward diglycosylamines using methanolic ammonia. All the glycosylamines prepared have been fully characterized, and their anomeric configuration has been determined. The article presents a novel method for the N-acylation of diglycosylamines and other electron-poor glycosylamines, which employs nitromethane as a solvent in carboxylic anhydride acylation under acidic conditions
Synthesis of N-glycoconjugates of glycyrrhetic acid
作者:S. R. Mustafina、L. A. Baltina、R. M. Kondratenko、L. A. Baltina、F. Z. Galin、G. A. Tolstikov
DOI:10.1007/s10600-006-0037-2
日期:2006.1
New N-glycoconjugates that are analogs of glycyrrhizic acid were synthesized by condensation of α-L-rhamnopyranosylamine and β-D-lactosylamine with acid succinate and phthalate of glycyrrhetic acid methyl ester using N,N′-dicyclohexylcarbodiimide (DCC) or DCC-N-hydroxybenzotriazole.