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Application filed by Konstantin A Telnov, Zoja M Kosaceva, Jevgenij A Semjonkov, Igor J Ziborov, Vladimir S BiberinfiledCriticalKonstantin A Telnov
Priority to CS831659ApriorityCriticalpatent/CS247138B1/cs
Publication of CS165983A1publicationCriticalpatent/CS165983A1/cs
Publication of CS247138B1publicationCriticalpatent/CS247138B1/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.