K. Matta, J. Barlow
1976
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Journal
Carbohydrate research
Abstract
Reaction of 2,3,4,6-tetra-O-acetyl-alpha-D-galactopyranosyl bromide with p-nitrophenyl 2-acetamido-2-deoxy-4,6-O-(p-methoxybenzylidene)-alpha-D-galactopyranoside under the usual conditions, followed by removal of the p-methoxybenzylidene group and O-deacylation, gave crystalline p-nitrophenyl 2-acetamido-2-deoxy-3-O-beta-D-galactopyranosyl-alpha-D-galactopyranoside. The synthesis of p-nitrophenyl 2-acetamido-2-deoxy-3-O-beta-D-galactopyranosyl-beta-D-galactopyranoside has also been accomplished by a similar reaction-sequence.