Synthesis of propyl and 2-aminoethyl glycosides of α-d-galactosyl-(1→3′)-β-lactoside
作者:Olga N Yudina、Andrei A Sherman、Nikolay E Nifantiev
DOI:10.1016/s0008-6215(01)00097-0
日期:2001.6
Propyl and 2-aminoethyl alpha-D-galactopyranosyl-(1-->3')-beta-lactosides (1 and 2) were prepared from the corresponding perbenzylated trisaccharide allyl glycoside 6 which, in turn, was obtained by methyl triflate promoted alpha-galactosylation of benzylated allyl lactoside acceptor 4 with thiogalactoside 3. Transformation of the allyl moiety in compound 6 into 2-azidoethyl one was achieved by cleavage