Verfahren zur Herstellung neuer Essigsäure-Derivate

摘要

Title acids of formula (I) (where each Y is identical and is CF3, p-Cl-phenyl or phenyl) and their salts with salt-forming cations which are useful as hypocholesterolaemics and hypolipaemics are prepd. by saponifying cpds, of formula (II) (where R is 1-4C alkyl) at a temperature at which partial decarboxylation occurs.