CHEMICAL PROCESS

摘要

A process for preparing an optically active compound of Formula (II) or a salt thereof, (Formula II) where * indicates a stereogenic centre; and R<SUP>1 </SUP>and R<SUP>7 </SUP>are as defined in the specification, which process comprises the acid hydrolysis of an optically active compound of Formula (IV), (Formula IV) where R<SUP>5</SUP> and R<SUP>6</SUP> <SUP/>are as