反应详情

温度

60 °C

A mixture of Intermediate 149b (104 mg, 0.15 mmol) and morpholine (64 μL, 0.73 mmol) in THF (2 mL) was stirred at 60° C. for 18 h. The reaction mixture was cooled to RT, diluted with DCM (5 mL) and washed with water (5 mL) and brine (5 mL). The organic layer was passed through a phase separator and concentrated in vacuo and the resultant residue was purified by prep. HPLC, using 5-50% CH3CN in water, buffered with formic acid, on a Gemini C18 column, over 20 mins to afford the title compound as an off white solid (22 mg, 21%). LCMS (Method 5): Rt 2.66 min, m/z 704.6 [MH+]. 1H NMR (400 MHz, d6-DMSO): 1.28 (9H, s), 1.84-2.11 (6H, m), 2.13 (3H, s), 2.15-2.26 (2H, m), 2.31-2.40 (5H, m), 3.10-3.17 (1H, m, obscured by water), 3.51 (2H, s, obscured by water), 3.55 (4H, t, J=4.6 Hz), 3.99 (1H, t, J=8.0 Hz), 4.78-4.86 (1H, m), 5.39 (1H, t, J=4.2 Hz), 6.33 (1H, s), 7.06 (1H, d, J=8.6 Hz), 7.24-7.49 (9H, m), 7.75 (1H, d, J=9.7 Hz), 8.10 (1H, s), 8.19 (0.6H, br s), 8.24 (1H, d, J=1.8 Hz).

1. temperatureThe reaction mixture was cooled to RT
2. washwashed with water (5 mL) and brine (5 mL)
3. concentrationconcentrated in vacuo
4. customthe resultant residue was purified by prep
5. waitbuffered with formic acid, on a Gemini C18 column, over 20 mins