4-Iodopyridine → HCID 86680495、化合物

To a stirred solution of 4-iodopyridine (0.3 g, 1.463 mmol) in THF (10 mL) was added n-BuLi (0.6 mL, 0.96 mmol) at −78° C. and stirred for 10 min. A solution of 1-(3-(4-fluorophenyl)isoxazol-5-yl)ethanone (0.1 g, 0.484 mmol) in THF (5 mL) was added to the reaction and the mixture stirred at −78° C. for 2 h. The reaction was quenched with saturated ammonium chloride solution (10 mL) and diluted with ethyl acetate (50 mL). The organic layer was separated, washed with saturated ammonium chloride (3×150 mL) followed by brine solution (2×20 mL). The organic layer was dried over sodium sulfate, filtered and concentrated under reduced pressure to obtain crude product. The crude product was purified by column chromatography (100-200μ silica gel; 50% ethyl acetate in hexane) to obtain 3-(4-fluorophenyl)-5-(1-(pyridin-4-yl)ethyl)isoxazole as off-white solid (0.04 g, 29% yield). 1H NMR (400 MHz, DMSO-d6): δ 8.55 (d, 2H), 7.91 (dd, 2H), 7.46 (d, 2H), 7.32 (t, 2H), 6.81 (s, 1H), 7.04 (s, 1H), 1.86 (s, 3H); LC-MS m/z calculated for [M+H]+285.10. found 285.1.