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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Toyama Chemical Co Ltd
Original Assignee
Toyama Chemical Co Ltd
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Filing date
Publication date
Application filed by Toyama Chemical Co LtdfiledCriticalToyama Chemical Co Ltd
Priority to ES458846ApriorityCriticalpatent/ES458846A1/es
Publication of ES458846A1publicationCriticalpatent/ES458846A1/es
Un procedimiento para la preparación de nuevas cefalosporinas de fórmula general (I) *** donde R1 representa un átomo de hidrógeno, un catión formador de sal o un grupo de bloqueo y R2 representa un grupo acetoxi, carbamoiloxi, 2-(5-metil-1,3,4-tiadiazolil)tio o 5-(1-metil-1,2,3,4-tetrazolil)tio, cuyo procedimiento consiste en hacer reaccionar un compuesto representado por la fórmula general (II): ***
ES458846A1977-05-161977-05-16Un procedimiento para la preparacion de nuevas cefalospori- nas.
ExpiredES458846A1
(es)