PROCESS FOR PREPARING CHIRAL BETA-ADRENOCEPTOR ANTAGONISTS AND INTERMEDIATES THEREOF

摘要

The S-isomer of a compound of the formula (V), wherein Ar is an optionally substituted aryl, heteroaryl or heterocyclic group, and R<1> is phenyl optionally substituted by C1-6alkoxy or C1-6alkyl and its use in a process for the preparation of the S-isomer of compounds of formula (VII), wherein the group R<2>R<3>CH- is optionally substituted alkyl.