IMPROVED PROCESS FOR THE PREPARATION OF (ETHOXYMETHYL)-TROPAN DERIVATIVES

摘要

THE PRESENT INVENTION RELATES TO A PROCESS FOR PREPARING A 2-(ETHOXYMETHYL)-TROPANE DERIVATIVE OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, BY REACTING THE CORRESPONDING 2- (HYDROXYMETLHYL)-TROPANE DERIVATIVE WITH ETHYL BROMIDE IN THE PRESENCE OF A BASE, A PHASE TRANSFER CATALYST, AND OPTIONALLY A DILUENT, AND THEN OPTIONALLY TREATING WITH AN ACID.