反应详情

3-(5-Isopropyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidine-4-carbonyl)-5-methyl-benzonitrile (37 mg, 0.124 mmol, 1.2 eq.) was dissolved in 1.5 mL DMF. Potassium carbonate (14 mg, 1 eq.) was added and the reaction was stirred at room temperature for 10 minutes. 3-Bromomethyl-2-fluoro-5-nitro-pyridine (27 mg, 0.103 mmol, 1 eq.) and lithium iodide (14 mg, 1 eq.) were added. The reaction was stirred at room temperature for 2 hours. Ethyl acetate was added to the reaction mixture, followed by washing with brine. The organic layer was concentrated down and purified (silica gel, 0-80% EtOAC/hexane) to give white powder (16 mg, 34%). LC-MS shows 449.9 (M−1). 1H NMR (300 MHz, CDCl3): δ 8.98 (d, 2H), 8.48 (m, 1H), 7.98 (s, 1H), 7.93 (s, 1H), 7.78 (m, 2H), 5.08 (d, 1H), 4.56 (d, 1H), 2.50 (s, 3H), 2.22 (m, 1H), 1.22 (dd, 6H).

1. stirringThe reaction was stirred at room temperature for 2 hours
2. washby washing with brine
3. concentrationThe organic layer was concentrated down
4. custompurified (silica gel, 0-80% EtOAC/hexane)