反应详情

(S)-2-fluoro-4-(2-(2-((6-(1-methyl-1H-pyrazol-4-yl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-1-yl)-methyl)morpholino)pyrimidin-5-yl)benzaldehyde (41 mg, 0.09 mmol) was dissolved in dichloromethane (3 mL), and then AcOH (0.006 mL, 0.10 mmol) and 1-methylpiperazine (0.02 mL, 0.17 mmol) were added. The mixture was stirred at room temperature for 30 minutes, and then NaBH(OAC)3 (28 mg, 0.13 mmol) was added, followed by stirring at room temperature for 13 hours. When the reaction was completed, the reaction mixture was adjusted to pH 8 with 5% K2CO3, followed by extraction with dichloromethane and water two times or more. The organic layer was extracted with ethyl acetate and water, and the extra water was removed by sodium sulfate, followed by concentration under reduced pressure. PLC using 10% dichloromethane/methanol gave (S)-4-(5-(3-fluoro-4-((4-methylpiperazin-1-yl)methyl)phenyl)pyrimidin-2-yl)-2-((6-(1-methyl-1H-pyrazol-4-yl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-1-yl)methyl)morpholine (20 mg, 0.034 mmol) with a yield of 46%.

1. stirringby stirring at room temperature for 13 hours
2. extractionfollowed by extraction with dichloromethane and water two times
3. extractionThe organic layer was extracted with ethyl acetate and water
4. customthe extra water was removed by sodium sulfate
5. concentrationfollowed by concentration under reduced pressure