OXAZOLIDINE DERIVATIVES OR THEIR PHARMACEUTICALLY ACCEPTABLE SALTS OR ESTERS AND METHOD OF THEIR SYNTHESIS Russian patent published in 1997 - IPC

FIELD: chemistry of heterocyclic compounds. SUBSTANCE: product: derivatives of oxazolidine of the formula (I) given in description where: R - C₁-C₈-alkyl; X - S or O; Y - H or group -A-COOW where: A - C₁-C₆-alkylene; W - H or C₁-C₆-alkyl; Ar - aryl group containing 6-10 carbon atoms in ring and possibly substituted with halogen, halide-C₁-C₄-alkyl, hydroxy-group, C₁-C₄-alkyl, C₁-C₄-alkoxy-group, or their salts and esters. Invention proposes method of synthesis of compounds of the formula (I). Synthesized compounds show hypoglycaemic activity. EFFECT: improved method of synthesis. 21 cl, 4 tbl