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C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
C07D487/04—Ortho-condensed systems
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Organic Chemistry
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
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Nitrogen Condensed Heterocyclic Rings
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SU1613262A1971-01-25СПОСОБ ПОЛУЧЕНИЯ ПРОИЗВОДНЫХ 2,6-бис- (ДИАЛКАНОЛАМИНО)-ПИРИМИДО
SU379093A1
(ru)