EFFICIENT CHEMICAL SYNTHESIS OF METHYL β-GLYCOSIDES OF β-(1->6)-LINKED D-GALACTO-OLIGOSACCHARIDES BY A STEPWISE AND A BLOCKWISE APPROACH

Article abstract of DOI:10.1016/S0008-6215(00)90266-0

Bromoacetylation of methyl 2,3,4-tri-O-benzoyl-β-D-galactopyranoside (1) followed by cleavage of the methoxyl group from the resulting 6-O-bromoacetyl derivative 2 with 1,1-dichloromethyl methyl ether gave 2,3,4-tri-O-benzoyl-6-O-bromoacetyl-α-D-galactopy