BI-OR TRI-ENIC ESTERS OF ERYTHROMYCIN A, PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL AND COSMETIC COMPOSITIONS CONTAINING SAME

摘要

P BI OR TRI-ENIC LINEAR FATTY ESTERS OF ERYTHROMYCIN A, CHARACTERIZED BY THE FACT THAT THEY MEET THE FOLLOWING GENERAL FORMULA: BR/ (CF DRAWING IN BOPI) BR/ IN WHICH R OR R REPRESENTS A C OR TRI-ENICALLY LINEAR ACYL RADICAL WITH STEREOCHIMIC CONFIGURATION ALL CIS Z AND R OR R REPRESENTING A HYDROGEN ATOM. / P