反应详情

温度

120 °C

To a solution 2-amino-5-((1S,4S)-5-methyl-2,5-diazabicyclo[2.2.1]heptan-2-yl)benzamide (Intermediate 31D) (1 g, 3.83 mmol) in methanol (15 ml) was added trimethyl orthoformate (812 mg, 7.66 mmol) and ammonium acetate (0.60 g, 7.66 mmol). The vessel was sealed and the reaction heated at 120° C. for 4 hours. The methanol was then removed and the product chromatographed on silica elueting with 5% methanol in dichloromethane to afford 6-((1S,4S)-5-Methyl-2,5-diazabicyclo[2.2.1]heptan-2-yl)quinazolin-4(3H)-one (0.60 g, 2.33 mmol) as an off-white solid.

1. customThe vessel was sealed
2. customThe methanol was then removed
3. customthe product chromatographed on silica elueting with 5% methanol in dichloromethane