Conversion of 2-acetamido-2-deoxy-β-D-glucopyranose (N-acetylglucosamine) into 2-acetamido-2-deoxy-β-D-galactopyranose (N-acetylgalactosamine) using a biotransformation to generate a selectively deprotected substrate for SN2 inversion

Abstract
A procedure is described for the conversion of N-acetylglucosamine 2 into N-acetyigalactosamine 1, in which use is made of a 4,6-acetyl migration in a precursor selectively deprotected by a biotransformation procedure.