PROCESS FOR INTRODUCING A DOUBLE BOND INTO POSITION 15, 16 OF A STEROID

PROCESS FOR INTRODUCING A DOUBLE BOND INTO POSITION 15, 16 OF A STEROID

The invention relates to a process for the preparation of a compound of formula wherein R1 and R2 are as defined in the description, by reaction of a compound of formula (II) with a base. Compound (I) is an intermediate useful in the preparation of gestodene.

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Bibliographische Detailangaben
Hauptverfasser: DILLENSCHNEIDER JEAN-MARC, MOUTOU JEAN-LUC, PELLEGRINO GILLES, LAFAY JEAN, MOUTON FLORENT
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
STEROIDS
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Beschreibung
Zusammenfassung:The invention relates to a process for the preparation of a compound of formula wherein R1 and R2 are as defined in the description, by reaction of a compound of formula (II) with a base. Compound (I) is an intermediate useful in the preparation of gestodene.