反应详情

温度

80 °C

A mixture of (S)-methyl 2-(5-(4-(allyloxy)-4-methylpiperidin-1-yl)-2-(3-bromophenyl)-7,8-dimethylimidazo[1,2-a]pyridin-6-yl)-2-(tert-butoxy)acetate (0.25 g, 0.42 mmol, 1 equiv), Sphos (34 mg, 0.084 mmol, 0.2 equiv), (S)-2-(4,5-difluoro-2-(pent-4-en-2-yloxy)phenyl)-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione (0.18 g, 0.52 mmol, 1.25 equiv), K3PO4 (1.05 g, 4.59 mmol, 11 equiv), and Pd(OAc)2 (9 mg, 0.042 mmol, 0.1 equiv) in dioxane (5 mL) and water (1 mL) was heated at 80° C. for 1.5 h. Upon cooling to ambient temperature, the reaction mixture was diluted with EtOAc, washed with saturated aqueous sodium bicarbonate, dried (Na2SO4), and concentrated in vacuo. The crude product was purified by silica gel flash column chromatography (0-100% EtOAc [2% TEA]/hexane) to provide the product (0.25 g, 84%) as a white solid. LCMS (ESI, M+1): 716.70.

1. temperatureUpon cooling to ambient temperature
2. washwashed with saturated aqueous sodium bicarbonate
3. dry with materialdried (Na2SO4)
4. concentrationconcentrated in vacuo
5. customThe crude product was purified by silica gel flash column chromatography (0-100% EtOAc [2% TEA]/hexane)