反应详情

A mixture of EXAMPLE 56A (8.01 g, 21.6 mmol) and 20% aqueous sodium hydroxide (12 mL, 21.6 mmol) in 1,4-dioxane (75 mL) was heated at 50° C. for 90 minutes. The mixture was concentrated and the residue triturated with water, filtered, and concentrated to give the title compound.

1. concentrationThe mixture was concentrated
2. customthe residue triturated with water
3. filtrationfiltered
4. concentrationconcentrated