NOVEL DERIVATIVES OF 5-0-DESOSAMINYL 6-O-METHYL ERYTHRONOLIDE A, THEIR PREPARATION PROCESS AND THEIR APPLICATION TO THE PREPARATION OF BIOLOGICALLY ACTIVE PRODUCTS

摘要

Compounds of formula (I), wherein R is a carboxylic acid residue containing up to 18 carbon atoms, are disclosed. The compounds of formula (I) may be used for preparing antibiotics.