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:
Aug. 12, 1997
Filed:
Jun. 07, 1995
James Ronald Bull, Cape Town, ZA;
Karl-Heinrich Fritzemeier, Berlin, DE;
Christa Hegele-Hartung, Berlin, DE;
Schering Aktiengesellschaft, Berlin, DE;
Abstract
New 15,15-dialkyl-substituted derivatives of the estradiol of general formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, are each a hydrogen atom or a straight-chain alkanoyl group with 1 to 10 carbon atoms, a branched-chain alkanoyl group with 3-10 carbon atoms, an alkanoyl group of 3-10 carbon atoms containing a cycloaliphatic structure of 3-6 carbon ring atoms or a benzoyl group, and R.sup.3 and R.sup.4, independently of one another, are each a straight-chain alkyl group with 1 to 10 carbon atoms or a branched-chain alkyl group with 3 to 10 carbon atoms, are described, a process for their production and initial products for this process. The new compounds have--also after oral administration--high estrogenic effectiveness and are suitable for the production of pharmaceutical agents.