Patent · US Expired

6,6-eth ylene-15,16-methylene-3-oxo-17.alpha.-pregn-4-ene-21,17-carbolactones, processes for the production thereof, and pharmaceutical preparations containing them

US4584288A · kind A · utility

7Cited by

2References

18Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Klaus Nickish · Berlin, DE
Dieter Bittler · Berlin, DE
Henry Laurent
Rudolf Wiechert · Berlin, DE
Sybille Beier · Berlin, DE
Walter Elger · Berlin, DE

Key dates

Filing date	Jan 18, 1985
Grant date	Apr 22, 1986
Priority date	—
Expiry date	Jan 18, 2005

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07J53/008
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

6,6-ethylene-15,16-methylene-3-oxo-17.alpha.-pregn-4-ene-21,17.alpha.-carbo lactones of general Formula I ##STR1## wherein ##STR2## is a CC-single of CC-double bond, R.sub.1 is a hydrogen atom or a methyl group, PA0 R.sub.2 is a methyl or ethyl group, and ##STR3## exhibit strong gestagen potency and an aldosterone-antagonistic activity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.