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Laboratoires Francais de Chimiotherapie SA
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Laboratoires Francais de Chimiotherapie SA
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Publication of ES232433A1publicationCriticalpatent/ES232433A1/en
A process to prepare ketosteroids Δ 1,4-diºnicos, which is characterized by treating a dihalogenated 3-ketosteroid, whose cycle, has the general structure: ** (See formula) ** wherein X and X 'constitute halogens which may be the same, by the coupling: lithium halide-lithium carbonate, in a solvent constituted by a disubstituted amide of a lower fatty acid, heat and isolate the Δ 1 , 4-ketosteroid, thus formed, by the usual procedures. (Machine-translation by Google Translate, not legally binding)
ES0232433A1955-12-131956-12-12A procedure for preparing cestosteroids delta 1,4-dienic (Machine-translation by Google Translate, not legally binding)
ExpiredES232433A1
(en)
A procedure for obtaining fluorite cartridges as a basis for the manufacture of fluoridation trays (Machine-translation by Google Translate, not legally binding)