NOVEL 5-H PYRIDO (3 ', 4': 4,5) (PYRROLO 3,2-C) PYRIDONES, THEIR PREPARATION PROCESS AND THEIR APPLICATION AS SYNTHESIS INTERMEDIATES

摘要

New derivatives of formula IMAGE in which X denotes hydrogen or chlorine and R1 denotes hydrogen or a lower alkyl or benzyl group. Synthesis intermediates in the preparation of new compounds which can be employed in the pharmaceuticals industry.