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Expired
Application number
GB36683/57A
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Laboratoires Francais de Chimiotherapie SA
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Laboratoires Francais de Chimiotherapie SA
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Publication of GB817177ApublicationCriticalpatent/GB817177A/en
C07J41/00—Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J75/00—Processes for the preparation of steroids in general
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Health & Medical Sciences
(AREA)
General Health & Medical Sciences
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
The invention comprises the 3,20-disemicarbazone of each of the following compounds: 17a - hydroxy - 21 - acetoxy - pregnane - 3,11,20-trione, 11b ,17a ,21 - trihydroxy - pregnane - 3,20-dione and 11b ,17a -dihydroxy-21-acetoxy-pregnane - 3,20 - dione. The 3,20-disemicarbazones may be prepared by the method described in Specification 817,175.
GB36683/57A1955-07-291956-04-27Improvements in or relating to cyclopentanophenanthrene compounds
ExpiredGB817177A
(en)
Procedure for the preparation of 16 alpha, 17alfa-oxido-5alfa- and 5 beta-pregnano-3, 11, 20-triona (Machine-translation by Google Translate, not legally binding)