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Publication of BE676636ApublicationCriticalpatent/BE676636A/xx
C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
C07F9/02—Phosphorus compounds
C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
C07F9/645—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
C07F9/6509—Six-membered rings
C07F9/650952—Six-membered rings having the nitrogen atoms in the positions 1 and 4
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
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