反应详情

温度

70 °C

A mixture of Intermediate 26a (340 mg, 0.95 mmol), Intermediate 31c (372 mg, 0.95 mmol), and DIPEA (248 μL, 1.43 mmol) in dioxane (5 mL) was stirred at 70° C. for 18 h. After cooling to RT, the reaction mixture was partitioned between DCM and water. The organic layer was dried through a phase separator and then concentrated in vacuo. The resultant residue was purified by FCC, using 0-10% MeOH in DCM to afford the title compound (536 mg, 94%) as a brown solid. An aliquot of the compound thus obtained (100 mg) was further purified by MDAP (Method 7) to afford the title compound (45 mg). LCMS (Method 5): Rt 4.08 min, m/z 600 [MH+]. 1H NMR (400 MHz, DMSO): 1.20 (9H, s), 1.81-2.19 (4H, m), 3.66 (2H, d, J=6.1 Hz), 3.93 (2H, t, J=6.0 Hz), 4.78-4.84 (1H, m), 4.98 (1H, br s), 5.51 (1H, t, J=4.3 Hz), 6.05 (1H, s), 7.06 (1H, d, J=8.6 Hz), 7.23-7.30 (1H, m), 7.32-7.38 (4H, m), 7.60 (1H, td, J=7.5, 1.3 Hz), 7.68 (1H, td, J=7.7, 1.9 Hz), 7.73 (2H, td, J=7.5, 1.3 Hz), 7.82-7.92 (2H, m), 8.17 (1H, s).

1. temperatureAfter cooling to RT
2. customthe reaction mixture was partitioned between DCM and water
3. customThe organic layer was dried through a phase separator
4. concentrationconcentrated in vacuo
5. customThe resultant residue was purified by FCC