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.)
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Organon NV
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Organon NV
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Publication date
Application filed by Organon NVfiledCriticalOrganon NV
Priority to ES0292919ApriorityCriticalpatent/ES292919A3/en
Publication of ES292919A3publicationCriticalpatent/ES292919A3/en
Procedure for the preparation of Δ 4-19-nor-steroids characterized by a combination of the formula ** (See formula) ** where it is an acyl, alkyl, aryl or aralkyl group, R2 is H2, (H) OH or = 0 and R3 means = 0, (H) COCH3, (H) COCH3OR4, (OH) COCH2OR4, (H) OR4 , or (R5) OR4, wherein R4 is a hydrogen atom or an acyl group which is derived from a carboxylic acid having 1 to 10 carbon atoms and represents a methyl, ethyl or vinyl group, is reacted with an alkali metal in the presence of ammonia or a lower aliphatic primary amine with 1 to 6 carbon atoms. (Machine-translation by Google Translate, not legally binding)
ES0292919A1963-10-261963-10-26Procedure for the preparation of delta-19-nor-steroids (Machine-translation by Google Translate, not legally binding)
ExpiredES292919A3
(en)