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HYDRAZIDE OF 2-(5-NITRO-2-THIENYL)-CINCHONINIC ACID AS INTERMEDIATE PRODUCT IN SYNTHESIS OF ARYLHYDRAZIDES POSSESSING MUTAGENIC ACTIVITY AND METHOD OF OBTAINING SAME
HYDRAZIDE OF 2-(5-NITRO-2-THIENYL)-CINCHONINIC ACID AS INTERMEDIATE PRODUCT IN SYNTHESIS OF ARYLHYDRAZIDES POSSESSING MUTAGENIC ACTIVITY AND METHOD OF OBTAINING SAME