Various 18-substituted progesterones |
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Authors: | R A Auel R W Freerksen D S Watt |
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Institution: | Department of Chemistry University of Colorado Boulder, Colorado 80309, U.S.A. |
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Abstract: | In order to test the potential biological activity of 18-substituted progesterones, 3,20-dioxo-4-pregene-18-carbonitrile (ld approximately) was converted to 3,20-dioxo-4-pregnene-18-carboxylic acid (lb approximately) and methyl 3,20-dioxo-4-pregnene-18-carboxylate (ld approximately) via a sequence of reactions involving an intramolecular hydrolysis of the 18--arbonitrile. Lithium aluminum hydride reduction of the bisethylene ketal derived from la approximately furnished 18-aminomethyl-5-pregnene-3,20-dione 3,20-bisethylene ketal (8 approximately). Acetylation and hydrolysis furnished 18-acetamidomethyl-4-pregnene-3,20-dione (lf approximately) and simple hydrolysis of 8 approximately furnished 3'alpha H-5' 6'-dihydro-2',19 beta-dimethyl-3-oxo-4-goneno 13,17-c]pyridine (9 approximately). None of the compounds exhibited any activity in Clauberg or anti-Clauberg tests. |
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Keywords: | Author to whom correspondence should be addressed |
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