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Application filed by Kamil Ing Csc WichterlefiledCriticalKamil Ing Csc Wichterle
Priority to CS838854ApriorityCriticalpatent/CS241213B1/cs
Publication of CS885483A1publicationCriticalpatent/CS885483A1/cs
Publication of CS241213B1publicationCriticalpatent/CS241213B1/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.