反应详情

To a solution of (E)-4-amino-1-((4-(5,5-dimethyl-2,4-dioxoimidazolidin-1-yl)-2,6-dimethylstyryl)sulfonyl)piperidine-4-carbonitrile (675 mg, 1.50 mmol) in methanol (7.5 mL) and dimethylsulfoxide (0.195 mL) at room temperature, a 2 N aqueous sodium hydroxide solution (1.6 ml, 1.6 mmol) was added and then a 30% aqueous hydrogen peroxide solution (0.2 mL, 1.95 mmol) were slowly added dropwise. The mixture was stirred at room temperature for one hour. Ethyl acetate, hexane, and a saturated aqueous ammonium chloride solution were added to the reaction mixture. The solid was collected by filtration, washed, and dried to afford (E)-4-amino-1-((4-(5,5-dimethyl-2,4-dioxoimidazolidine-1-yl)-2,6-dimethylstyryl)sulfonyl)piperidine-4-carboxamide (498 mg, 72%).

1. filtrationThe solid was collected by filtration
2. washwashed
3. customdried