82543-18-8Relevant articles and documents
A drospirenone and intermediate preparation method (by machine translation)
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Paragraph 0088-0090, (2019/11/20)
The invention discloses a drospirenone and intermediate preparation method. Preparation method of this invention comprises the following steps: in the solvent, the compound 3 with hydrogen peroxide oxidation reaction shown below, to obtain compound 4 can be. Preparation method of this invention does not use a heavy metal reagent, reduces the toxicity of the preparation process, the use of the reagent are all conventional reagent, low cost, and is favorable for industrial large-scale production. (by machine translation)
Process for the preparation of drospirenone
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Page/Page column 7, (2008/06/13)
A process is described for preparing drospirenone, a synthetic steroid with progestogenic, antimineralocorticoid and antiandrogenic activity, useful for the preparation of pharmaceutical compositions with contraceptive action, starting from 5,6beta-epoxy-7beta-hydroxy-15beta,16beta-methylene-3beta-pivaloyloxy-5beta-androstan-17-one.
Synthese von Spirorenon, einem neuen stark wirksamen Aldosteron-Antagonisten
Bittler, Dieter,Hofmeister, Helmut,Laurent, Henry,Nickisch, Klaus,Petzoldt, Karl,et al.
, p. 718 - 719 (2007/10/02)
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