反应详情

8-Bromo-2-[1-(2,2,2-trifluoro-ethyl)-1H-imidazol-2-yl]-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene (110.0 mg, 0.2557 mmol) dissolved in Acetonitrile (0.534 mL, 10.2 mmol) and with dissolved 2.00 M of Potassium carbonate in Water (0.256 mL). Degas by bubbling nitrogen for 5 min. The reaction was charged with 2-methyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-2-ol (102 mg, 0.384 mmol) then Tetrakis(triphenylphosphine)palladium(0) (41.36 mg, 0.03579 mmol). The reaction was heated in microwave at 140 C for 10 min. The reaction was cooled to r.t. then extracted with ethyl acetate. Combined organics concentrated and purified by reverse phase HPLC to give 355. MS: (ESI+)=490.1. 1H NMR (400 MHz, DMSO) δ 8.24 (d, J=8.3 Hz, 1H), 8.17 (s, 1H), 7.95 (s, 1H), 7.55 (s, 1H), 7.41 (dd, J=8.3, 1.8 Hz, 1H), 7.29 (d, J=1.8 Hz, 1H), 7.18 (d, J=1.2 Hz, 1H), 5.74 (q, J=8.9 Hz, 2H), 4.71 (s, 1H), 4.37 (t, J=5.0 Hz, 2H), 4.03 (s, 2H), 3.40 (t, J=5.0 Hz, 2H), 1.09 (s, 6H)

1. customDegas
2. customby bubbling nitrogen for 5 min
3. temperatureThe reaction was heated in microwave at 140 C for 10 min
4. extractionthen extracted with ethyl acetate
5. concentrationCombined organics concentrated
6. custompurified by reverse phase HPLC