An efficient method to synthesize novel 5-O-(6′-modified)-mycaminose 14-membered ketolides

Abstract

A new and facile procedure was developed to synthesize novel 5-O-(6′-modified)-mycaminose 14-membered ketolides by adopting different protective strategies and comparing various glycosylation conditions. Seven trichloroacetimidate donors which had different types of substituent groups at C-6 position were synthesized to couple with the erythronolide. Nine novel 5-O-(6′-modified)-mycaminose 14-membered ketolides were obtained to verify the utility of the method.