反应详情

温度

140 °C

The mixture of N-{4-[4-bromo-5-(1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-1,2,4-triazol-3-yl)-1,3-thiazol-2-yl]pyridin-2-yl}acetamide (0.0340 g, 0.0686 mmol), 2,6-dimethylphenylboronic acid (20.6 mg, 0.137 mmol), tetrakis(triphenylphosphine)palladium (0) (9.1 mg, 0.0073 mmol), and 2 M sodium carbonate in water (0.0850 mL, 0.170 mmol) in 1,4-dioxane (2.0 mL) in capped vial was heated to 140° C. for 19 hours. Additional tetrakis(triphenylphosphine)palladium(0) (7.1 mg, 0.0057 mmol) was added and the mixture was heated to 140° C. for 1 additional day. The mixture was filtered through celite/Na2SO4, washed with EtOAc, and evaporated under reduced pressure to give a crude intermediate. The material was treated with TFA (2.0 mL, 26 mmol) in dry DCM (2.0 mL) for 5 hours. The solvent was evaporated under reduced pressure and azeotroped with toluene to give a crude product. HPLC purification gave 0.002 g of pure product as a white powder (7.5%). LCMS: (FA) ES+ 391 and ES− 389. 1H NMR (400 MHz, d4-Methanol) δ 8.73 (s, 1H), 8.40 (d, J=5.84 Hz, 1H), 8.35 (s, 1H), 7.68 (d, J=5.84 Hz, 1H), 7.20 (m, 1H), 7.11 (s, 1H), 7.09 (d, J=7.35 Hz, 1H), 2.21 (s, 3H), 2.03 (s, 6H).

1. temperaturethe mixture was heated to 140° C. for 1 additional day
2. filtrationThe mixture was filtered through celite/Na2SO4
3. washwashed with EtOAc
4. customevaporated under reduced pressure
5. customto give a crude intermediate
6. customThe solvent was evaporated under reduced pressure
7. customazeotroped with toluene
8. customto give a crude product
9. customHPLC purification