Sodium hydride → 1-{4'-[3-Methyl-4-(3-phenyl-pyrazol-1-ylmethyl)-isoxazol-5-yl]-biphenyl-4-yl}-cyclopropanecarboxylic acid

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Reaction Steps

1-[4′-(4-Bromomethyl-3-methyl-isoxazol-5-yl)-biphenyl-4-yl]-cyclopropanecarboxylic acid ethyl ester (0.132 g, 0.3 mmol) and 3-phenyl-1H-pyrazole (0.043 g, 0.3 mmol) were combined in DMF. Sodium hydride (60% in mineral oil; 0.014 g, 0.35 mmol) was added, and the reaction was stirred at room temperature for 1.5 hours. Once no starting material was seen by analytical LCMS, the mixture was diluted with EtOAc and 1N aqueous HCl. The aqueous layer was extracted with EtOAc, and the combined organic layers were washed with H2O and brine, and then dried over Na2SO4, filtered, and concentrated. The residue was purified by preparative HPLC to give the title compound.

Provenance & Evidence