反应详情

To a stirred suspension of 5-methyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-sulfonyl chloride (1.0 g, 12 mmol) in DCM (10 mL) at 0° C. was added Hünig's base (0.79 mL, 4.5 mmol) followed by N1,N1-dimethylpropane-1,3-diamine (0.52 mL, 4.2 mmol) and the solution stirred at ambient temperature for 2 hours. The suspension was adjusted to pH 8 with 2N hydrochloric acid, the precipitate collected by filtration, washed with water, diethyl ether and dried under vacuum to give the product as off-white solid (1.12 g, 89%).

1. filtrationthe precipitate collected by filtration
2. washwashed with water, diethyl ether
3. customdried under vacuum