Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH1594563Aexternal-prioritypatent/CH484084A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES307441A1publicationCriticalpatent/ES307441A1/en
Procedure for obtaining an steroid with an ostrogenic effect, specifically 7α, 17α-dimethyl-ostradiol or its 3-methyl ether, characterized in that in a compound of the formula **(See formula)** where R1 represents hydrogen, a free or esterified hydroxy group or a methyl or hydroxymethyl group and R2 the group (see formula) or a transformable residue in this group, and where there can also be another double bond at position 1,2, ring A is aromatized and, if necessary, the substituent at position 17 is transformed into the group (see formula) and/or the 3-hydroxy group in a 3-methoxy group. (Machine-translation by Google Translate, not legally binding)
ES0307441A1963-12-241964-12-22Procedure for obtaining a steroid of ostrogenic effect. (Machine-translation by Google Translate, not legally binding)
ExpiredES307441A1
(en)
Procedure for preparation of 3,11 beta, 17 beta-trihidroxi 17 alpha.etinil delta, (10) -estratriene (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of 3-espiro-3-diazirinaesteroides or 3-espiro-3-diaziridina steroides. (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of steroids of the pregnan series, replaced by chlorine in the position 2. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of 3-or2'-amino tiazolo - (5 ', 4'-16,17) - estra 1,3,5 (10), 16-tetraens. (Machine-translation by Google Translate, not legally binding)