反应详情

温度

150 °C

To a solution of 6-bromo-1-(1H-indol-5-yl)-1H-imidazo[4,5-b]pyrazin-2(3H)-one (27 mg, 0.08 mmol) in CH3CN (1 mL) in a Personal Chemistry microwave reaction vial was added 3,4,5-trimethoxyphenylboronic acid (17 mg, 0.08 mmol), bis(triphenylphosphine)-palladium(II) dichloride (6.0 mg, 0.008 mmol), and 1 M Na2CO3 (1 mL). The resulting mixture was de-gassed with Ar for 10 min, after which it was heated at 150° C. for 10 min in a Personal Chemistry Optimizer. The organic layer was separated, filtered, and concentrated in vacuo. The residue was purified by preparatory HPLC to yield the title compound (6.5 mg, 19%). 1H NMR (DMSO-d6, 300 MHz): δ 12.18 (s, 1H), 11.28 (s, 1H), 8.57 (s, 1H), 7.83 (d, J=1.8 Hz, 1H), 7.52 (d, J=8.4 Hz, 1H), 7.42 (m, 1H), 7.37 (dd, J=1.8, 8.4 Hz, 1H), 7.20 (s, 2H), 6.51 (m, 1H), 3.78 (s, 6H), 3.66 (s, 3H); HPLC retention time: 2.30 minutes; MS ESI (m/z): 418.4 (M+1)+, calc. 417.

1. customThe resulting mixture was de-gassed with Ar for 10 min
2. customThe organic layer was separated
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customThe residue was purified by preparatory HPLC