The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 1990
Filed:
Sep. 16, 1988
Lucien Nedelec, Le Raincy, FR;
Andre Claussner, Villemomble, FR;
Daniel Philibert, La Varenne Saint-Hilaire, FR;
Martine Moguilewsky, Paris, FR;
Roussel Uclaf, Paris, FR;
Abstract
Steroids with a 17-spiro substituent of 3,4 or 6 ring members of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of carbocyclic aryl, heterocyclic aryl and aralkyl, R.sub.2 is a hydrocarbon of 1 to 18 carbon atoms in the .alpha.-or .beta.-position, the wavy line of the spiro ether indicates the oxygen is .alpha.-or .beta.-, X is selected from the group consisting of --CH.dbd.CH--CH.sub.2 --CH.sub.2 -- and --(CH.sub.2).sub.n --, n is 1, 2 or 4, the A and B rings have a structure selected from the group consisting of ##STR2## R' and R' are individually hydrogen or alkyl of 1 to 4 carbon atoms, R.sub.e is selected from the group consisting of hydrogen, alkyl of 1 to 6 carbon atoms, substituted alkyl of 1 to 6 carbon atoms and acyl and their non-toxic, pharmaceutically acceptable acid addition salts having a remarkable antiprogestomimetic activity.