Diisopropylethylamine → 2-{5-[1-(3-Fluoro-5-trifluoromethyl-benzyl)-piperidin-3-yl]-4'-trifluoromethyl-biphenyl-3-yl}-4-methyl-pentanoic acid

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Reaction Steps

To a solution of compound 33b, 4-Methyl-2-(5-piperidin-3-yl-4′-trifluoromethyl-biphenyl-3-yl)-pentanoic acid ethyl ester (44.6 mg, 0.10 mmol) in CH3CN (5 ml) was added 3-Fluoro-5-trifluoromethyl benzyl bromide) (77 mg, 0.3 mmol) and diisopropylethylamine (35 μl, 0.20 mmol). The reaction was microwaved at 130° C. for 10 minutes, then diluted with EtOAc and washed with brine, sat. NaHCO3, and brine, dried and filtered. Purification by silica gel chromatography (Isco) gave the desired product, (53 mg, 85%). Calcd for C34H36F7N1O2 (M+H) 623.64, Found 624.3

Provenance & Evidence