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Application filed by Oleg S Cechov, Boris T Vasiljev, Ruslav Z Chiterev, Michail G Berengarten, Tatana I Bondareva, Anatolij G Vorotnikov, Ivan I Rumjancev, Jurij I KiprijanovfiledCriticalOleg S Cechov
Priority to CS83337ApriorityCriticalpatent/CS251223B1/cs
Publication of CS33783A1publicationCriticalpatent/CS33783A1/cs
Publication of CS251223B1publicationCriticalpatent/CS251223B1/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.