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Priority to JP20931984ApriorityCriticalpatent/JPS6187726A/ja
Publication of JPS6187726ApublicationCriticalpatent/JPS6187726A/ja
Publication of JPH0432092B2publicationCriticalpatent/JPH0432092B2/ja
Triple ions of 1,2- and 1,4-dicarbonyl compounds and analogs thereof containing nitrogen and containing two strategic oxygen or nitrogen groups and process for producing same