beta-Acyl glucuronides are readily prepared in two steps from allyl D-glucuronate 1 in 14 to 29% overall yields. (C) 1997 Elsevier Science Ltd.
Synthesis and reactions of α- and β-d-glucopyranosyluronic esters of amino acids
作者:Djurdjica Ljevaković、Dina Keglević
DOI:10.1016/s0008-6215(00)84580-2
日期:1980.11
The synthesis of the fully benzylated α- and β-d-glucopyranosyluronic esters of 1-benzyl N-benzyloxycarbonyl-l-aspartic and -glutamic acids and N-(tert-butoxycarbonyl)-l-phenylalanine, followed by hydrogenolysis, afforded the respective anomers of the 1-O-acyl-d-glucopyranuronic acids 2, 7, and 12. Esterification of both anomers of the N-acetylated derivatives of 2 and 7 by diazomethane was accompanied