Schering Aktiengesellschaft

Gudrun Bertram

Kurt Ponsold

Anatoli Kurischko

Helmut Kasch

Gerd Schubert

Bernd Menzenbach

Heidemarie Rohrig

The invention relates to 11.beta.-aryl-gona-4,9-dienes of formula I ##STR1## wherein the variables are defined in the specification. The compounds are progesterone synthesis inhibitors and are suitable for inducing labor or an abortion, and for treating endometriosis, dysmenorrhea, and endocrine hormone-dependent tumors.

11 Beta-aryl-gona-4, 9-dien-3-ones

This invention relates to 11.beta.-aryl-gona-4,9-dienes of the general formula I ##STR1## wherein the variables are defined in the specification. The compounds are progesterone antagonists and are suitable for inducing labor or an abortion.

11.beta.-aryl-gona-4,9-dien-3-ones

11.sym.-Aryl-16.alpha.,17.alpha.-cyclohexano-estra-4,9-dienes of formula ##STR1## wherein R.sup.1 is H or a methyl group;

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Jena, Germany

Gudrun Bertram