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Expired
Application number
GB25506/55A
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Organon NV
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Organon NV
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Application filed by Organon NVfiledCriticalOrganon NV
Publication of GB763946ApublicationCriticalpatent/GB763946A/en
C07J3/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by one carbon atom
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
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Organic Chemistry
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Health & Medical Sciences
(AREA)
General Health & Medical Sciences
(AREA)
Steroid Compounds
(AREA)
Abstract
The invention comprises saturated compounds of the cyclopentanophenanthrene series containing a keto group as substituent in 3-position, a free or functionally derived hydroxyl group in 11a -position and in 17-position a free or functionally derived carboxyl group. In an example 3b ,11a - diacetoxyetiocholanic acid methyl ester is hydrolysed to produce 3b -hydroxy-11a -acetoxy-etiocholanic acid methyl ester, which is subsequently oxidized to 3-keto-11a -acetoxy-etiocholanic acid methyl ester. Specification 763,947 is referred to.
GB25506/55A1952-07-121953-07-10Improved etiocholanic acid derivatives and methods for their production
ExpiredGB763946A
(en)
Procedure for the obtaining of progestativally active energy esters of the carboxylicode acid the pregnadine-17 alfaol-3,20-diona (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining esters of strictly progressive activity of the carboxylic acid of 1-alopregnene-17 a-o1-3,20-diona (Machine-translation by Google Translate, not legally binding)