METALOSULFONATE SALTS OF 3-ESTERS OF ABIRATERONA AND RECOVERY OF SALTS OF 3-ESTERS OF ABIRATERONA FROM A SOLUTION OF METAL TERC-BUTIL ETER.

摘要

The salt of a compound of formula (I): ** (See formula) ** in which R 'represents a lower acyl group with between 2 and 4 carbon atoms and R represents a hydrogen atom or an alkyl group of 1 -4 carbon atoms; with methanesulfonic acid.