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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Fujisawa Pharmaceutical Co Ltd
Original Assignee
Fujisawa Pharmaceutical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujisawa Pharmaceutical Co LtdfiledCriticalFujisawa Pharmaceutical Co Ltd
Priority to ES507974ApriorityCriticalpatent/ES8207183A1/es
Publication of ES507974A0publicationCriticalpatent/ES507974A0/es
Publication of ES8207183A1publicationCriticalpatent/ES8207183A1/es
UN PROCEDIMIENTO PARA PREPARAR COMPUESTOS DE CEFEM. CONSISTE EN HACER REACCIONARE UN COMPUESTO DE FORMULA GENERAL (I), EN QUE A ES ALCOHILENO INFERIOR QUE CONTIENE OXO, O UN SAL DEL MISMO CON UN COMPUESTO DE FORMULA R4ONH2 O UNA SAL DEL MISMO. SE OBTIENE EL COMPUESTO DE FORMULA GENERAL (II), EN QUE OPCIONALMENTE SE PUEDEN AFECTUAR DIVERSAS TRANSFORMACIONES. R'' ES UN GRUPO AMINO-HETEROCICLICO SUSTITUIDO, QUE PUEDE CONTENER HALOGENO O UN GRUPO AMINO PROTEGIDO-HETEROCICLICO; R2 ES CARBOXI PROTEGIDO; A12 ES ALCOHILENO INFERIOR QUE CONTIENE UN GRUPO = NOR4.
ES507974A1981-12-151981-12-15Un procedimiento para preparar compuestos de cefem .
ExpiredES8207183A1
(es)