反应详情

温度

105 °C

3-Amino-5-bromo-1-methyl-1H-pyridin-2-one (392 mg, 1.93 mmol) was placed into 13 ml n-butanol. To this mixture under argon was added: Pddba2 (55.2 mg, 0.096 mmol), XPhos (91.2 mg, 0.191 mmol), acetic acid 2-(6-dimethylamino-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl)-6-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzyl ester (900 mg, 1.93 mmol), potassium phosphate (814 mg, 3.84 mmol) and 4 ml water. The mixture was heated under argon in a sealed flask for 45 minutes at 100-110° C. After cooling, the mixture was diluted with ethylacetate, washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by column chromathography using 5% methanol in dichloromethylene to afford 450 mg of Acetic acid 2-(5-amino-1-methyl-6-oxo-1,6-dihydro-pyridin-3-yl)-6-(6-dimethylamino-1-oxo-3,4-dihydro-1H-isoquinolin-2-yl)-benzyl ester (49% yield).

1. additionTo this mixture under argon was added
2. temperatureAfter cooling
3. washwashed with brine
4. dry with materialdried over sodium sulfate
5. concentrationconcentrated in vacuo
6. customThe residue was purified by column chromathography