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Application filed by Vladimir Ing NagyfiledCriticalVladimir Ing Nagy
Priority to CS836678ApriorityCriticalpatent/CS245511B1/cs
Publication of CS667883A1publicationCriticalpatent/CS667883A1/cs
Publication of CS245511B1publicationCriticalpatent/CS245511B1/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.