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Application filed by Fisons Pharmaceucals LtdfiledCriticalFisons Pharmaceucals Ltd
Priority to OA53520ApriorityCriticalpatent/OA03858A/fr
Publication of OA03858ApublicationCriticalpatent/OA03858A/fr
C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
C07D493/04—Ortho-condensed systems
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Organic Chemistry
(AREA)
OA53520A1969-02-251969-02-25Procédé de préparation de benzodipyrones.
OA03858A
(fr)