Preparation and use of new solvates of beclomethasone 17,21-dipropionate
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United States of America Patent
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Apr 3, 1990
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Jul 24, 1985
filing date -
Jul 25, 1984
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Abstract
Preparation of novel solvates of beclomethasone 17,21-dipropionate, by dissolution of beclomethasone 17,21-dipropionate in an ethereal or halogenated hydrocarbon solvent and precipitation by the addition of di-isopropyl ether. These new solvates are bulk stable, in both the micronized and non-micronized forms. The micronized form is especially suitable for the preparation of stable aerosol.
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