Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Merck and Co Inc
Original Assignee
Merck and Co Inc
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Filing date
Publication date
Application filed by Merck and Co IncfiledCriticalMerck and Co Inc
Priority to FR7519356ApriorityCriticalpatent/FR2328471A2/fr
Publication of FR2328471A2publicationCriticalpatent/FR2328471A2/fr
Application grantedgrantedCritical
Publication of FR2328471B2publicationCriticalpatent/FR2328471B2/fr
C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
C07D498/04—Ortho-condensed systems
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Chemical & Material Sciences
(AREA)
Organic Chemistry
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)