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Application filed by Merrell Dow PharmafiledCriticalMerrell Dow Pharma
Publication of PH20563ApublicationCriticalpatent/PH20563A/en
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.