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
Priority claimed from FR7226Aexternal-prioritypatent/FR92108E/en
Application filed by Roussel Uclaf SAfiledCriticalRoussel Uclaf SA
Publication of ES321325A2publicationCriticalpatent/ES321325A2/en
Improvements introduced in the object of the main Patent No. 521,259 requested on December 29, 1965, by: "A method of preparing steroid derivatives", in particular a 3-oxo-4,9,11-trienic steroid derivative, characterized in that 3-oxo-17beta-hydroxy-13beta-ethyl-17alpha-methyl-5-gone (10), 9 (11) -diene or a precursor thereof is subjected to the action of a substituted p-benzoquinone and especially to the action of , 3-dichloro 5,6-dicyano p-benzoquinone. (Machine-translation by Google Translate, not legally binding)
ES0321325A1965-02-261965-12-30A procedure for preparation of steroid derivatives. (Machine-translation by Google Translate, not legally binding)
ExpiredES321325A2
(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)
A procedure for preparation of 3,16 beta-dihydroxy 16 alphaetinyl 19-nor 1,3,5 (10) -androstatrene. (Machine-translation by Google Translate, not legally binding)