Heptane → HCID 178524447, 화합물

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A solution of 4-chloro-quinoline-3-carboxylic acid ethyl ester (11.8 mg, 0.5 mmol) and 4-hydrazino-benzoic acid (7.6 mg, 0.5 mmol) in n-butanol (0.5 mL) was stirred at 115° C. over night in a sealed tube. After cooling to 50-70° C., heptane (1.0 mL) was added and the product was allowed to crystallize upon further cooling to room temperature. The solvent was removed and the product was washed with heptane and dried under vacuum to yield 4-(3-oxo-3,5-dihydro-pyrazolo[4,3-c]quinolin-2-yl)-benzoic acid (13 mg). 1H NMR (400 MHz, DMSO-d6) δ 12.9 (1H, s), 8.77 (1H, d), 8.38 (2H, d), 8.25 (1H, d), 8.03 (2H, d), 7.65-7.77 (2H, m), 7.58 (1H, t).

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