Water → HCID 22936458, compound

Participants

Reaction Steps

7-Methoxy-4-((5-nitro-2-pyridyl)oxy)-6-quinolinecarboxamide (93.0 mg, 273 mmol), iron powder (76.0 mg, 1.36 mmol) and ammonium chloride (146 mg, 2.73 mmol) were heated and stirred in ethanol (4 ml)-water (1 ml) at 80° C. for 20 minutes. After completion of the reaction, the reaction mixture was filtered with celite and washed in an ethyl acetate-tetrahydrofuran mixed solvent. After washing the organic layer with water and saturated saline and drying over anhydrous magnesium sulfate, the drying agent was filtered out and the filtrate was distilled off under reduced pressure. The obtained crude product was subjected to silica gel column chromatography (eluent-ethyl acetate:methanol=20:1), and the fraction containing the target substance was concentrated, suspended in ethyl acetate and diluted with hexane, after which the crystals were filtered out, washed with hexane and then blow-dried to obtain the title compound (61.0 mg, 197 mmol, 72%) as yellow crystals.

Provenance & Evidence