13.alpha.-alkyl-gonanes, their production, and pharmaceutical preparations containing same

US4780461A · kind A · utility

Assignee

• SCHERING CORPORATION · US

Inventors

• Gunter Neef · Berlin, DE
• Rudolf Wiechert · Berlin, DE
• Sybille Beier · Berlin, DE
• Walter Elger · Berlin, DE
• David Henderson · Berlin, DE

Key dates

• Filing date: Dec 18, 1985
• Grant date: Oct 25, 1988
• Expiry date: Dec 18, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07J71/001
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

13.alpha.-alkylgonanes of formula I ##STR1## where R is an acyl radical with as many as 10 C-atoms, and PA0 X is an oxygen atom or the grouping N--OH, have a strong antigestagenic effect and can be used for postcoital fertility control.