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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
MX9205748A1991-10-081992-10-07
CYCLE DERIVATIVES OF CETAL, PROCEDURE FOR ITS PREPARATION AND PHARMACEUTICAL COMPOSITION THAT CONTAINS THEM.
MX9205748A
(en)
METHANE SULFONAMIDE DERIVATIVES, FARDERIVED COMPOSITIONS OF METHANOSULFONAMIDE, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND PROCEDURE FOR SMACEUTICS THAT CONTAIN THEM AND PROCEDURE FOR U PREPARATION. ITS PREPARATION.
NEW STEROIDS, PROCEDURE FOR THEIR PREPARATION NEW STEROIDS, PROCEDURE FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITION CONTAINING THEM. ON AND PHARMACEUTICAL COMPOSITION THAT CONTAINS THEM.