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Application filed by Kalas Vaclav, Milan Ing Csc Zalman, Zdenko Ing HarvanekfiledCriticalKalas Vaclav
Priority to CS836065ApriorityCriticalpatent/CS239159B1/cs
Publication of CS606583A1publicationCriticalpatent/CS606583A1/cs
Publication of CS239159B1publicationCriticalpatent/CS239159B1/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.