ES339251A1 - A procedure for the preparation of 3-oxo 7 alpha-methyl estra-4,9-dieno. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the preparation of 3-oxo 7 alpha-methyl estra-4,9-dieno. (Machine-translation by Google Translate, not legally binding)
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.)
Sanofi Aventis France
Original Assignee
Roussel Uclaf SA
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
Application filed by Roussel Uclaf SAfiledCriticalRoussel Uclaf SA
Publication of ES339251A1publicationCriticalpatent/ES339251A1/en
A process for the preparation of a 3-oxo-7alpha-methyl estra-4,9-diene of the formula: ** (see formula) ** Characterized in that 3-oxo 7alfa-methyl-17beta-acetoxy estra-4,9-diene is saponified with an alkaline agent, the 3-oxo-7alpha-methyl-17beta-hydroxy-estra-4,9-diene obtained is esterified by of the hexahydrobenzyl chloroformate and the 3-oxo-7alpha-methyl-17beta-hexahydrobenzyloxycarbonyloxy estra-4,9-diene is isolated. (Machine-translation by Google Translate, not legally binding)
ES339251A1967-04-041967-04-13A procedure for the preparation of 3-oxo 7 alpha-methyl estra-4,9-dieno. (Machine-translation by Google Translate, not legally binding)
ExpiredES339251A1
(en)
A procedure for the preparation of 3-oxo 17-beta-metoxy 17-alpha-methyl estra-4.9, ii-triene. (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining hormones and vitamins, especially b 12 of slow effect via via injectable (Machine-translation by Google Translate, not legally binding)