To (2′-hydroxymethyl-6-methoxy-4′-trifluoromethyl-biphenyl-3-yl)-acetic acid methyl ester (0.158 g, 0.44 mmol), 5-methyl-5-phenylhydantoin (0.102 g, 0.53 mmol), and triphenylphosphine (0.141 g, 0.53 mmol) in THF (3 mL) was added diisopropyl azodicarboxylate (0.1 mL, 0.53 mmol), and the reaction was stirred overnight at room temperature. Once no starting material was seen by analytical LCMS, the mixture was concentrated and purified by silica gel chromatography (0-50% EtOAc in hexanes) to give the title compound.
