反应详情

To a stirred mixture of 1-((trans)-4-(1-bromo-8-methylimidazo[1,5-a]pyrazin-3-yl)cyclohexyl)-N-methylmethanamine (0.148 mmol, 50 mg) and a 37% aqueous formaldehyde solution (0.445 mmol, 33.4 μL) was added sodium cyanoborohydride (0.163 mmol, 10.25 mg). After stirring for 30 minutes, acetic acid was added to adjust the pH of the reaction mixture to neutral. Stirring was continued for an additional hour during which time the pH was maintained neutral by addition of acetic acid. The reaction mixture was concentrated in vacuo. To the residue dichloromethane and 2N sodium hydroxide (aq) solution were added and the organic layer was separated. The aqueous layer was washed twice with dichloromethane. The combined organic layers were dried (Na2SO4) and concentrated in vacuo to give 1-((trans)-4-(1-bromo-8-methylimidazo[1,5-a]pyrazin-3-yl)cyclohexyl)-N,N-dimethylmethanamine (57 mg).

1. stirringStirring
2. waitwas continued for an additional hour during which time
3. concentrationThe reaction mixture was concentrated in vacuo
4. additionTo the residue dichloromethane and 2N sodium hydroxide (aq) solution were added
5. customthe organic layer was separated
6. washThe aqueous layer was washed twice with dichloromethane
7. dry with materialThe combined organic layers were dried (Na2SO4)
8. concentrationconcentrated in vacuo