[Non-steroid anti-inflammatory agents. Stereoisomers of 2-(-4-biphenylyl)-3-oxybutyric acid]

The synthesis, diastereoisomeric separation, attribution to erythro and threo series, and resolution of the enantiomers of 2-(4-biphenylyl)-3-oxybutyric acid are described. The four isomers were tested for anti-inflammatory activity: the preliminary results are interesting, particular those for the (--) erythro enantiomer.