反应详情

温度

60 °C

Triethylamine (71.0 μl, 0.51 mol), 1-hydroxybenzotriazole hydrate (35 mg, 0.26 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (49.0 mg, 0.26 mol) were added to an N,N-dimethylformamide solution (0.5 mL) of 2,6-bis(4-fluorophenyl)pyridine-4-carboxylic acid (53.0 mg, 0.17 mmol) and 6-(tetrazol-5-yl)spiro[chroman-2,4′-piperidin]-4-one hydrochloride (82.0 mg, 0.26 mol), and stirred at 60° C. for 3 hours. The reaction liquid was concentrated under reduced pressure, and the resulting residue was purified through high-performance preparative liquid chromatography (0.1% TFA, water/acetonitrile) to obtain the title compound as a white solid. 1H-NMR (400 MHz, DMSO-d6) δ: 8.42 (1H, d, J=2.0 Hz), 8.31 (4H, dd, J=8.7, 5.7 Hz), 8.25 (1H, dd, J=8.7, 2.3 Hz), 7.94 (2H, s), 7.39-7.33 (5H, m), 4.35-4.32 (1H, m), 3.46-3.32 (3H, m), 2.99 (2H, s), 2.13-2.10 (1H, m), 1.91-1.87 (3H, m). MS [M+H]+=579.

1. customThe reaction liquid
2. concentrationwas concentrated under reduced pressure
3. customthe resulting residue was purified through high-performance preparative liquid chromatography (0.1% TFA, water/acetonitrile)