反应详情

温度

35 °C

To a solution of EXAMPLE 38A (0.455 g) in ethanol (3 mL) and tetrahydrofuran (1 mL) was added hydrogen peroxide (30% in water, 2 mL) followed by 1 N aqueous NaOH (1.024 ml) and heated to 35° C. for 3 hours. The reaction was poured into dichloromethane (50 mL) and 1N aqueous HCl (25 mL). The aqueous layer was extracted with dichloromethane (3×50 mL). The precipitate contained in the combined organic layers was collected by filtration to give the title compound.

1. extractionThe aqueous layer was extracted with dichloromethane (3×50 mL)
2. filtrationwas collected by filtration