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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
C07D493/08—Bridged systems
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Chemical & Material Sciences
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Organic Chemistry
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Pharmaceuticals Containing Other Organic And Inorganic Compounds
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MX9205748A1991-10-081992-10-07Derivados ciclicos de cetal, procedimiento para su preparacion y composicion farmaceutica que los contiene.
MX9205748A
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Derivados de metano sulfonamida, composiciones farderivados de metanosulfonamida, composiciones farmaceuticas que los contienen y procedimiento para smaceuticas que los contienen y procedimiento para u preparacion. su preparacion.
Nuevos esteroides, procedimiento para su preparacinuevos esteroides, procedimiento para su preparacion y composicion farmaceutica que los contiene. on y composicion farmaceutica que los contiene.