反应详情

To a solution of amine 54 (260 mg, 0.57 mmol, crude) in DMF (6 mL), were added acid 27 (108 mg, 0.52 mmol) and HOBt (77 mg, 0.57 mmol). After stirring for 5 min, EDC (120 mg, 0.63 mmol) was added, and the reaction mixture was stirred at room temperature for additional 4 hours and concentrated under reduced pressure. The residue was purified by preparative HPLC (column Aquasil C-18, gradient, MeOH 60% to MeOH 95% in water) to afford title compound 48 (160 mg, 46% yield) as a white solid. 1H NMR (DMSO-d6) δ (ppm): 10.87 (bs, 1H), 10.75 (s, 1H), 9.62 (s, 1H), 8.60 (d. 1H), 8.17 (s, 1H), 8.02 (m, 3H), 7.89 (d, 1H), 7.74 (d, 2H), 7.51 (m, 1H), 7.05 (m, 2H), 6.90 (t, 1H), 6.79 (d, 1H), 4.39 (d, 1H), 6.57 (d, 1H), 3.84 (s, 2H), 3.69 (s, 2H), 3.35 (m, 2H), 3.06 (m, 3H), 2.00 (m, 2H), 1.87 (m, 2H). MS (m/z): 610.0 (M+H).

1. stirringthe reaction mixture was stirred at room temperature for additional 4 hours
2. concentrationconcentrated under reduced pressure
3. customThe residue was purified by preparative HPLC (column Aquasil C-18, gradient, MeOH 60% to MeOH 95% in water)