摘要:
New oxamides, derivatives Of D-glucosamine and aliphatic or aromatic amines were prepared by acylation of methyl 3,4,6-tri-O-acetyl-2-acetamido-2-deoxy-alpha- or -beta -D-glucopyranoside (1c or 1d) with oxalyl chloride, followed by reaction with amine. The reaction was assumed to proceed by the intermediate of N-carbomethoxy N-(methyl 3,4,6-tri-O-acetyl-2-deoxy-alpha or beta -D-glucopyranosid-2-yl) oxamic acid chloride which reacted with amines, and afforded N-acetyl, N-(methyl 3,4,6-tri-O-acetyl-2-deoxy-alpha- or -beta -D-glucopyranosid-2-yl), N'-alkyl or aryloxamide (5-7), and N-(methyl 3,4,6-tri-O-acetyl-2-deoxy-alpha- or -beta -D-glucopyranosid-2-yl), N'-alkyl or aryloxanlide (8-13).