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Application filed by Jan Jakes, Jares Frantisek, Oldrich Rybar, Exner Milan, Augustin Frey, Michna Vladimir, Vladimir Ing Holata, Lili Ing KucerovafiledCriticalJan Jakes
Priority to CS835600ApriorityCriticalpatent/CS239279B1/cs
Publication of CS560083A1publicationCriticalpatent/CS560083A1/cs
Publication of CS239279B1publicationCriticalpatent/CS239279B1/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.