ES314904A1 - A method for preparing unsaturated derivatives of the pregnan series. (Machine-translation by Google Translate, not legally binding)
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A method for preparing unsaturated derivatives of the pregnan series. (Machine-translation by Google Translate, not legally binding)
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Spofa Sdruzeni Podniku Pro Zdravotnickou Vyrobu
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Spofa Sdruzeni Podniku Pro Zdravotnickou Vyrobu
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C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
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
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General Health & Medical Sciences
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Steroid Compounds
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
A method for preparing unsaturated derivatives of the pregnane series having the general formula I: ** (See formula) ** wherein R1 represents hydrogen, alpha-methyl or beta-methyl or methylene, R2 and R3, which are identical or different, represent hydrogen or an acyloxy group of 1 to 6 carbon atoms, and a double of 16.17 may be present further bond, characterized in that a substituted 3-acyloxy-Delta3,5-pregnadiene of the partial general formula II is halogen: ** (See formula) ** wherein R4 represents an acyloxy group of 1 to 6 carbon atoms, the formed addition product is hydrolysed, and the 6 beta-halogen-Delta4-3-ketone obtained is dehydrohalogenated. (Machine-translation by Google Translate, not legally binding)
ES0314904A1964-10-101965-07-03A method for preparing unsaturated derivatives of the pregnan series. (Machine-translation by Google Translate, not legally binding)
ExpiredES314904A1
(en)
Procedure for the preparation of 3-alpha-aciloxi 11-oxo 20, 20-bis-phosphatomethyl 21-hydroxy 5-beta-pregnan (Machine-translation by Google Translate, not legally binding)
A method to produce new derivatives of indolilalcohil guanidine and salts from themselves (Machine-translation by Google Translate, not legally binding)