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
Priority to ES0223299ApriorityCriticalpatent/ES223299A2/es
Publication of ES223299A2publicationCriticalpatent/ES223299A2/es
Mejoras introducidas en el objeto de la Patente principal, o sea, en un procedimiento para preparar un compuesto de esteroide, que comprenden hacer reaccionar 21-hidroxi-alopregnano-3,20-diona con un agente acilador para asegurar la reacción en la posición 21 y para la producción de un compuesto que tenga la fórmula de la Memoria.
ES0223299A1955-08-011955-08-01Un procedimiento para preparar un compuesto de esteroide
ExpiredES223299A2
(es)