反应详情

温度

90 °C

5-(1-benzyl-1H-imidazol-2-yl)-2-bromo-4-(2,4-dichlorophenyl)thiophene-3-carbonitrile (107 mg, 0.219 mmol), N-[4-(trimethylstannyl)pyridin-2-yl]acetamide (85.0 mg, 0.284 mmol), Lithium chloride (30.0 mg, 0.708 mmol), Copper(I) iodide (4.70 mg, 0.0247 mmol) and Tetrakis(triphenylphosphine)palladium(0) (24.7 mg, 0.0214 mmol) were taken up in 1,4-Dioxane (3.0 mL) under an atmosphere of argon. The mixture was heated at 90° C. for 4 hours. The solvent was evaporated and the residue was purified using ISCO chromatography on silica gel, elution with 1-2% MeOH in DCM to give the product (0.071 g, 60%). LCMS: (FA) ES+ 544, 546. 1H NMR (400 MHz, d1-chloroform) δ: 8.59 (s, 1H), 8.40 (d, J=5.27 Hz, 1H), 8.03 (s, 1H), 7.52 (dd, J=5.27 Hz, 1.76 Hz, 1H), 7.30 (d, J=2.00 Hz, 1H), 7.27-7.16 (m, 6H), 6.87 (d, 1H), 6.77-6.75 (d, J=6.27 Hz, 2H), 4.90-4.78 (m, 2H), 2.25 (s, 3H).

1. customThe solvent was evaporated
2. customthe residue was purified
3. washon silica gel, elution with 1-2% MeOH in DCM