Water → 2-{4-[Hydroxy(2-oxothiolan-3-yl)methyl]phenyl}propionic acid

Participants

Reaction Steps

Ethyl 2-{4-[hydroxy(2-oxothiolan-3-yl)methyl]phenyl}propionate (106 mg) obtained in Example 32 was dissolved in 1,4-dioxane (2.0 ml), and to the solution was added 30% aqueous sulfuric acid (2.0 ml), and the solution was stirred overnight at room temperature. After completion of the reaction, to the reaction mixture was added water, and the mixture was extracted with ethyl acetate, and the organic layer was washed with water and saturated brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (chloroform/methanol=10/1) to give the title compound (64 mg, 66%).

Provenance & Evidence