反应详情

5-Chloro-6-chloromethyluracil (5.0 g), 2-iminopyrrolidine (6.14 g), and sodium ethoxide (5.24 g) were dissolved in N,N-dimethylformamide (50 ml) and the resultant solution was stirred for 14 hours at room temperature. Subsequently, precipitated crystals were collected through filtration, and the crystals were suspended in water (30 ml). The resultant suspension was neutralized with acetic acid and washed. Subsequently, insoluble matter was collected through filtration and was dissolved in 1N HCl (60 ml). Activated carbon was added to the resultant solution and the mixture was subjected to filtration. The filtrate was concentrated under reduced pressure, and the residue was washed with ethanol, followed by filtration, to thereby obtain 2.68 g of the title compound (38% yield).

1. customSubsequently, precipitated crystals
2. filtrationwere collected through filtration
3. washwashed
4. filtrationSubsequently, insoluble matter was collected through filtration
5. dissolutionwas dissolved in 1N HCl (60 ml)
6. additionActivated carbon was added to the resultant solution
7. filtrationthe mixture was subjected to filtration
8. concentrationThe filtrate was concentrated under reduced pressure
9. washthe residue was washed with ethanol
10. filtrationfollowed by filtration