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
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Filing date
Publication date
Priority claimed from FR614Aexternal-prioritypatent/FR1514086A/en
Application filed by Roussel Uclaf SAfiledCriticalRoussel Uclaf SA
Publication of ES321259A1publicationCriticalpatent/ES321259A1/en
A method of preparing steroid derivatives of general formula ** (See formula) ** characterized in that the 3-oxo 5 (10), 9 (11) -bis-dehydro steroid is subjected to the precursors, such as the corresponding ketal or enamine, to the action of a substituted p-benzoquinone, representing R in the formula above a lower alkyl radical, such as a methyl, an ethyl or a propyl, and x the radical of a pentagonal or hexagonal cycle, optionally substituted. (Machine-translation by Google Translate, not legally binding)
ES0321259A1964-12-311965-12-29A procedure for preparation of steroid derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES321259A1
(en)
A procedure for preparing the 21-hydroxy steroids of the pregnan series esterified in the position 21. (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)