C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
C07D311/78—Ring systems having three or more relevant rings
Nouvelles 5-h pyrido (3', 4' : 4,5) (pyrrolo 3,2-c) pyridones, leur procede de preparation et leur application en tant qu'intermediaires de synthese