反应详情

温度

150 °C

A mixture of N-ethyl-3-fluoro-5-(3-iodo-1H-indazol-6-yl)-4-methylbenzamide (Intermediate 19, 2.34 g), 1,1-dimethylethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,6-dihydro-1(2H)-pyridinecarboxylate (1.71 g), aqueous sodium hydrogen carbonate (1M, 11.1 ml) and tetrakis(triphenylphosphine)palladium(0) (129 mg) in isopropanol (10 ml) was divided into three portions then stirred in sealed vials at 150° C. for 25 min in a microwave oven. The reaction mixtures were combined, the solvent was removed under vacuum and the residue was partitioned between ethyl acetate and water. The organic layer was separated using a hydrophobic filter tube, the solvent was evaporated and the residue was purified by chromatography on a silica column eluting with an ethyl acetate:cyclohexane gradient, to give the title compound as a yellow foam (1.76 g).

1. customThe reaction mixtures
2. customthe solvent was removed under vacuum
3. customthe residue was partitioned between ethyl acetate and water
4. customThe organic layer was separated
5. customthe solvent was evaporated
6. customthe residue was purified by chromatography on a silica column
7. washeluting with an ethyl acetate