[EN] PREPARATION OF SUBSTITUTED-4,5-DIHYDROPYRROLO[4,3,2-de][2,6]NAPHTHYRIDIN-3(1H)-ONES [FR] PRÉPARATION DE 4,5-DIHYDROPYRROLO[4,3,2-DE][2,6]NAPHTYRIDIN-3(1H)-ONES SUBSTITUÉES
[EN] PREPARATION OF SUBSTITUTED-4,5-DIHYDROPYRROLO[4,3,2-de][2,6]NAPHTHYRIDIN-3(1H)-ONES [FR] PRÉPARATION DE 4,5-DIHYDROPYRROLO[4,3,2-DE][2,6]NAPHTYRIDIN-3(1H)-ONES SUBSTITUÉES