| abstract |
THE PRESENT INVENTION RELATES TO AZETIDINONE DERIVATIVES FROM A PROCESS FOR THEIR PREPARATION. THESE DERIVATIVES ARE REPRESENTED BY THE FORMULA: (CF DRAWING IN BOPI) OR R IS A LOWER ALCOHYL SUBSTITUTED BY AN ARYL OR AN ARYLOXY, R IS A LOWER ALCOYL SUBSTITUTED BY AN ARYL, A LOWER ALCOYL SUBSTITUTED BY AN ARYLO OR AN ARYLOXY SUBSTITUTED BY A HALOGEN, R REPRESENTS: (CF DRAWING IN BOPI) (OR R IS A LOWER ALCOHYL), (CF DRAWING IN BOPI) (OR R IS AS DEFINED ABOVE), -S-SO-R (OR R IS AN ARYL), (CF DRAWING IN BOPI) (WHERE R AND R ARE SIMILAR OR DIFFERENT AND REPRESENTS LOWER ALCOYL OR PHENYL) OR (CF DRAWING IN BOPI) AND X IS HEDROGEN OR HALOGEN. |