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Application filed by Zdenek Dr Ing JandafiledCriticalZdenek Dr Ing Janda
Priority to CS838477ApriorityCriticalpatent/CS847783A1/cs
Publication of CS847783A1publicationCriticalpatent/CS847783A1/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.