FIELD: organic chemistry. SUBSTANCE: product: 2-hydroxy-1-naphthylmethylenehydrazone of 5-nitro-2-furaldehyde, empirical formula is C16H11N3O4, m. p. is 200-201 C (with decomposition), LD50 is above 1000 mg/kg, minimal inhibiting concentration is 0.07-1.25 mcg/ml, minimal bactericidal concentration is 0.07-1.25 mcg/ml that exceeds furazolidone effect by several times. Reagent 1: 2-hydroxy-1-naphthaldehyde hydrazone. Reagent 2: 5-nitrofurfurol. Process conditions: in ethanol medium, at 50 C. Synthesized compounds were used in medicine. EFFECT: improved method of synthesis. 1 tbl
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