Abstract

Methyl l-sibirosaminide and N-acylkansosamine were synthesized via the same intermediate, methyl 4-amino-4,6-dideoxy-2,3- O-isopropylidene-3- C-methyl-α- l-mannopyranoside ( 7), from l-rhamnose in 7 and 10 steps, respectively. Conversion of 7 into the title compounds was performed by N-methylation or N-(2-methoxypropanoyl)ation followed by appropriate derivatization.

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