ES226254A1 - A procedure for preparing new cyclopentan derivatives polyhydrophenantrenum (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for preparing new cyclopentan derivatives polyhydrophenantrenum (Machine-translation by Google Translate, not legally binding)
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Laboratoires Francais de Chimiotherapie SA
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Laboratoires Francais de Chimiotherapie SA
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Publication of ES226254A1publicationCriticalpatent/ES226254A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Abstract
A process for preparing the oestradiol hexahydrobenzoates of the general formula: in which r1 represents hydrogen acyl or hexahydrobenzoyl and r1 and r2 represents hydrogen or hexahydro-benzoyl with r1 and r2 being the same or different which is characterized by contacting a solution of a compound of the general formula: in which r represents hydrogen or a group that is easy to cleave with a hexahydrobenzoylating agent in the presence of a condensing agent; isolate the hexahydrobenzoylated derivative thus formed and regenerate the hydroxyl 3 in a timely manner. (Machine-translation by Google Translate, not legally binding)
ES0226254A1955-01-251956-01-24A procedure for preparing new cyclopentan derivatives polyhydrophenantrenum (Machine-translation by Google Translate, not legally binding)
ExpiredES226254A1
(en)
A procedure for the obtaining by synthesis of 4-amino-3-isoxazolidone and its derivatives (Machine-translation by Google Translate, not legally binding)