1-Hydroxybenzotriazole → 2'-Cyano-4'-methyl-5-(pyrrolidine-1-carbonyl)-N-((6-(trifluoromethyl)pyridin-3-yl)methyl)biphenyl-3-carboxamide

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Reaction Steps

A round-bottom flask was charged with 2′-cyano-4′-methyl-5-(pyrrolidine-1-carbonyl)biphenyl-3-carboxylic acid (50 mg, 0.1 mmol), N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (52 mg, 0.27 mmol), 1-hydroxybenzotriazole (36 mg, 0.27 mmol), N,N-diisopropylethylamine (35 mg, 0.27 mmol), methylene chloride (4 mL), 4-dimethylaminopyridine (1 mg), and C-(6-trifluoromethyl-pyridin-3-yl)-methylamine (47 mg, 0.27 mmol). The mixture was stirred at room temperature overnight, and then diluted with CH2Cl2, washed with aq. Na2HPO4, brine, and dried over Na2SO4, and concentrated. The residue was purified via preparative HPLC to afford the desired product as a white solid.

Provenance & Evidence