反应详情

温度

70 °C

To a solution of methyl 3-chloro-2-oxo-1,2-dihydroquinoxaline-6-carboxylate (200 mg, 0.84 mmol) in DMSO (2 mL) was added (S)-2-methylpiperidine (166 mg, 1.7 mmol) and DIEA (217 mg, 1.7 mmol). The resulting solution was stirred at 70° C. for 3 h and then quenched by water (10 mL), the solids were collected by filtration to afford (S)-methyl 3-(2-methylpiperidin-1-yl)-2-oxo-1,2-dihydroquinoxaline-6-carboxylate as a light yellow solid (200 mg, 79%).

1. customquenched by water (10 mL)
2. filtrationthe solids were collected by filtration