Norsteroid intermediates and process for their preparation

Norsteroid intermediates and process for their preparation

The present invention relates to a new stereoselective process for the synthesis of 17(α)-17-acetyl-17-hydroxy-estr-4-en-3-one of formula (I), as well as to the new intermediates of the process. The 17(α)-17-acetyl-17-hy droxy-estr-4-en-3 -one (gestonorone) is an important intermediate in the synthe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Santa Csaba, Csoergei Janos, Maho Sandor, Horvath Janos, dr. Beni Zoltan, Horvath Anita
Format: Patent
Sprache:eng ; hun
Schlagworte:
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
STEROIDS
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Beschreibung
Zusammenfassung:The present invention relates to a new stereoselective process for the synthesis of 17(α)-17-acetyl-17-hydroxy-estr-4-en-3-one of formula (I), as well as to the new intermediates of the process. The 17(α)-17-acetyl-17-hy droxy-estr-4-en-3 -one (gestonorone) is an important intermediate in the synthesis of the active ingredients having progestogen activity - such as gestonorone capronate and nomegestroi acetate. Formulas (I), (II) and (III).