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.)
Merck and Co Inc
Original Assignee
Merck and Co Inc
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 Merck and Co IncfiledCriticalMerck and Co Inc
Publication of ES250644A1publicationCriticalpatent/ES250644A1/en
C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J75/00—Processes for the preparation of steroids in general
Abstract
A process for preparing pregnadiene compounds comprising the reaction of a 21-acylate of 16 alpha-methyl-11 beta-17 alpha-trihydroxy-14-pregnadiene-320-dione with a dehydrating agent to produce the corresponding 21-acylate of 16 alpha-methyl- 17 alpha21-dihydroxy-149 (11) -pregnatriene-320-dione. (Machine-translation by Google Translate, not legally binding)
ES0250644A1958-06-191959-06-19Procedure for preparing pregnadine compounds (Machine-translation by Google Translate, not legally binding)
ExpiredES250644A1
(en)