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Application filed by Rathousky JirifiledCriticalRathousky Jiri
Priority to CS838703ApriorityCriticalpatent/CS237639B1/cs
Publication of CS870383A1publicationCriticalpatent/CS870383A1/cs
Priority to BG6600184Aprioritypatent/BG44995A1/xx
Priority to HU436184Aprioritypatent/HU194995B/hu
Publication of CS237639B1publicationCriticalpatent/CS237639B1/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.