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C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
C07D491/04—Ortho-condensed systems
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FR920925A1963-01-091963-01-09Procédé de préparation du nu-oxyde de la 1-bêta-narcotine, de ses sels et produits conformes à ceux obtenus
ExpiredFR1348668A
(fr)
Procédé de préparation de la 1, 2-diphényl-3, 5-dioxo-4-gamma-oxobutyl-pyrazolidine, et produits conformes à ceux obtenus par le présent procédé ou procédé similaire
Procédé pour la préparation de chloro-pyridines et de leurs homologues alcoylsubstitués, et produits conformes à ceux obtenus par le présent procédé ou procédé similaire