反应详情

温度

17 °C

A solution of 5-amino-N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)-2-fluorobenzamide (372 mg, 1.08 mmol), dihydro-2H-pyran-4(3H)-one (108 mg, 1.08 mmol) and AcOH (0.05 mL) in MeOH (20 mL) was stirred at 17° C. for 2 h. Then NaBH3CN (109 mg, 1.63 mmol) was added and the resulting solution was stirred at 17° C. for 4 h. The solution was concentrated and the residue was purified by column chromatography to afford the title product (121.5 mg, Yield 17.5%). 1H NMR (CD3OD, 400 MHz): δ 7.16-7.07 (m, 3H), 7.03 (dd, J=2.9, 5.9 Hz, 2H), 6.95 (dd, J=8.9, 10.7 Hz, 1H), 6.79 (td, J=3.6, 8.8 Hz, 1H), 4.11 (quin, J=6.0 Hz, 1H), 3.98 (d, J=11.5 Hz, 2H), 3.80-3.69 (m, 2H), 3.64-3.40 (m, 5H), 2.98-2.81 (m, 4H), 2.72-2.60 (m, 2H), 1.99 (d, J=12.8 Hz, 2H), 1.56-1.39 (m, 2H). LCMS (m/z): 428.2 (M+1).

1. concentrationThe solution was concentrated
2. customthe residue was purified by column chromatography