PROCESS FOR PREPARING 4'-SUBSTITUTED-9-DEOXO-9A-AZA-9A-HOMOERYTHROMYCIN A DERIVATIVES

摘要

The invention relates to processes for preparing compounds of formula (3) wherein R4 is as defined herein, and to pharmaceutically acceptable salts thereof, as well as intermediates useful in such processes. The compounds of formula (3) are intermediates in the synthesis of antibacterial agents.