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:
Oct. 21, 1997
Filed:
Aug. 02, 1996
Armelle Bonfils, Paris, FR;
Daniel Philibert, La Varenne Saint Hilaire, FR;
Roussel Uclaf, , FR;
Abstract
The invention is a method of controlling fertility in male warm-blooded animals by administering a compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of alkyl of 1 to 12 carbon atoms and aralkyl of 7 to 15 carbon atoms or taken together form a saturated heterocycle of 5 to 6 ring members optionally having a second ring heteroatom selected from the group consisting of sulfur, oxygen and nitrogen, R.sub.3 is an .alpha.-alkyl of 1 to 8 carbon atoms, n is an integer from 2 to 15, R.sub.4 is alkyl of 1 to 12 carbon atoms, R.sub.5 is selected from the group consisting of hydrogen, alkyl of 1 to 12 carbon atoms and acyl of an organic carboxylic acid of up to 12 carbon atoms and the wavy lines indicate that the 17- and 20- asymmetrical centers are independent of the absolute R and S configurations and their non-toxic, pharmaceutically acceptable acid addition salts.