Sodium Hydroxide → 4-[3-{6-[3-Benzo[1,3]dioxol-5-yl-5-(3,3-difluoro-pyrrolidine-1-carbonyl)-phenoxy]-hexyl}-2-(2-carboxy-ethyl)-phenoxy]-butyric acid

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Reaction Steps

The title compound was prepared by the same method as 4-{2-(2-carboxy-ethyl)-3-[6-(5-dimethylcarbamoyl-3′,4′-difluoro-biphenyl-3-yloxy)-hexyl]-phenoxy}-butyric acid starting from 4-[3-{6-[3-benzo[1,3]dioxol-5-yl-5-(3,3-difluoro-pyrrolidine-1-carbonyl)-phenoxy]-hexyl}-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (120 mg, 0.163 mmol) and 1.0 N aqueous NaOH (1.63 mL) in EtOH (5.7 mL) to afford 4-[3-{6-[3-benzo[1,3]dioxol-5-yl-5-(3,3-difluoro-pyrrolidine-1-carbonyl)-phenoxy]-hexyl}-2-(2-carboxy-ethyl)-phenoxy]-butyric acid (73 mg, 66%) as a white amorphous solid.

Provenance & Evidence