反应详情

The title compound of example 24.1 (21.30 g, 95.83 mmol) was set stirring in 1 M sodium hydroxide in a cold water bath. Iodomethane (21.76 g, 153.3 mmol) in ethanol (63 mL) was added to the reaction. As the reaction progressed, solid began to precipitate out. The reaction was allowed to stir at RT for 12 hours. The reaction mixture was extracted with dichloromethane and the organic extracts were washed with brine, dried and concentrated to afford the title compound as a white solid (22 g, 97%).

1. customto precipitate out
2. extractionThe reaction mixture was extracted with dichloromethane
3. washthe organic extracts were washed with brine
4. customdried
5. concentrationconcentrated