Sodium Hydroxide → {[2-Methyl-4-({1-[4'-(trifluoromethyl)-4-biphenylyl]pentyl}oxy)phenyl]oxy}acetic acid

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To a solution of ethyl {[2-methyl-4-({1-[4′-(trifluoromethyl)-4-biphenylyl]pentyl}oxy)phenyl]oxy}acetate (310 mg, 0.62 mmol) in dioxan (6 mL) and water (3 mL), was added aqueous NaOH (2M, 2.43 mL, 1.22 mmol), and the mixture stirred at rt for 1 hour. The dioxan was removed under vacuum and brine (5 mL) added to the residue. The precipitate was collected by filtration and dried under vacuum to give the title compound as a white solid (250 mg).

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