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Priority to JP3434373ApriorityCriticalpatent/JPS5626677B2/ja
Publication of JPS49117491ApublicationCriticalpatent/JPS49117491A/ja
Publication of JPS5626677B2publicationCriticalpatent/JPS5626677B2/ja
Process for preparing certain pyrrolo (3 4-b)quinolines certain 1H-pyrano(3' 4':6,7)indolizino(1 2-b)quinolin-3 14(4H 12H)-diones and certain 8-methyl-7-(oxopropyl)-idolizino(1 2-b)quinolin-9(11H)-ones