反应详情

温度

50 °C

A mixture of 6-cyclopropyl-3-(2,4-dimethoxybenzyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (2 g), 4′-(bromomethyl)-3′-fluorobiphenyl-2-carbonitrile (1.8 g), potassium carbonate (1.5 g) and acetonitrile (200 mL) was stirred at 50° C. for 2 hr. Insoluble material was filtered off, and the solvent was evaporated under reduced pressure. The obtained residue was dissolved in trifluoroacetic acid (50 mL), and the mixture was stirred at 50° C. for 2 hr. To the reaction mixture was added toluene (50 mL), and the mixture was concentrated under reduced pressure. To the obtained residue was added ethyl acetate (50 mL), and the mixture was concentrated under reduced pressure. The precipitated solid was collected by filtration to give the title compound as a colorless solid (1.5 g, 64%).

1. filtrationInsoluble material was filtered off
2. customthe solvent was evaporated under reduced pressure
3. dissolutionThe obtained residue was dissolved in trifluoroacetic acid (50 mL)
4. stirringthe mixture was stirred at 50° C. for 2 hr
5. additionTo the reaction mixture was added toluene (50 mL)
6. concentrationthe mixture was concentrated under reduced pressure
7. additionTo the obtained residue was added ethyl acetate (50 mL)
8. concentrationthe mixture was concentrated under reduced pressure
9. filtrationThe precipitated solid was collected by filtration