Abstract
Regioselective ethanolysis of peracylated methyl β, α-D-glucopyranoside and methyl α-D-mannopyranoside in anhydrous organic solvent (n-hexane/EtOH = 99/1) could afford 6-OH derivatives exclusively by Candida rugosa lipase (CRL). No 4 → 6 acyl migration was observed in such an anhydrous solvent system. Substrates with propanoyl groups were more reactive than with acetyl groups on CRL-catalyzed reactions.
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