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Application filed by Stefan Ing Kulla, Helena Ing VallovafiledCriticalStefan Ing Kulla
Priority to CS8310135ApriorityCriticalpatent/CS247555B1/cs
Publication of CS1013583A1publicationCriticalpatent/CS1013583A1/cs
Publication of CS247555B1publicationCriticalpatent/CS247555B1/cs
Procedimiento para preparar derivados del acido 7beta-(carboxialquenoilamino)-(1-o,1-5 o 1-50)-3 cefem-4- carboxilico, y los intermediarios de aplicacion exclusiva en dicho procedimiento.