反应详情

温度

80 °C

86 mg (2.04 mmol) of lithium hydroxide monohydrate were added to a solution of 450 mg (1.02 mmol) of methyl (4-{[2-(4-chlorophenyl)-5-oxo-5,6-dihydro-4H-1,3,4-oxadiazin-4-yl]methyl}phenyl)(cyclopentyl)acetate in 10 ml of dioxane and 10 ml of water, and the mixture was stirred at 80° C. for 12 h. After removal of the dioxane under reduced pressure, the aqueous phase was adjusted to pH 2 using 1 M hydrochloric acid, which resulted in the flocculation of the product. The solution was filtered and the filter residue was dried under reduced pressure. This gave 373 mg (0.87 mmol, 86% of theory) of the title compound as a white solid.

1. customAfter removal of the dioxane under reduced pressure
2. customresulted in the flocculation of the product
3. filtrationThe solution was filtered
4. customthe filter residue was dried under reduced pressure