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.)
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Pfizer Inc
Original Assignee
Pfizer Inc
Charles Pfizer and Co Inc
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Filing date
Publication date
Application filed by Pfizer Inc, Charles Pfizer and Co IncfiledCriticalPfizer Inc
Publication of ES226236A2publicationCriticalpatent/ES226236A2/en
Improvements introduced in the object of the main patent or in a procedure for the preparation of δ1 4 -pregnadien-11 β 17 α .21-triol-3 20-dione comprising contacting δ4 -pregnen-11 β 17 α 21-triol-3-20-dione with the oxidizing activity of an organism of the genus mycobactirium. (Machine-translation by Google Translate, not legally binding)
ES0226236A1955-01-241956-01-23A procedure for nuclear oxidation of a steroid compound (Machine-translation by Google Translate, not legally binding)
ExpiredES226236A2
(en)