Water → HCID 21349860, compound

Participants

Reaction Steps

Methyl (+)-3-(2-(3-(2-hydroxyphenyl)propylthio)ethyl)-2,3-dihydrobenzofuran-7-yloxyacetate (160 mg) was dissolved in methanol (4 ml), and a 2N sodium hydroxide aqueous solution (0.4 ml) was added to the resultant solution, and the mixture was stirred at room temperature for 1.5 hours. The reaction solution was poured into water and then extracted with ethyl acetate twice. The combined organic layers were washed with saturated brine, and dried over sodium sulfate. Sodium sulfate was filtered off, and the filtrate was concentrated. The residue was purified by Lober® column DIOL (elution solvent: hexane/ethyl acetate=1/2) to obtain (+)-3-(2-(3-(2-hydroxyphenyl)propylthio)ethyl)-2,3-dihydrobenzofuran-7-yloxyacetic acid (145 mg). This product was dissolved in chloroform, and diethanolamine was added to the resultant solution. The solvent was distilled off under reduced pressure, and the residue was recrystallized from hexane/ethanol to obtain the object compound (140 mg, yield 76%).

Provenance & Evidence