Triethylamine → 2-[5-(1-Methanesulfonyl-piperidin-3-yl)-4'-trifluoromethyl-biphenyl-3-yl]-4-methyl-pentanoic acid ethyl ester

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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 (833 mg, 1.86 mmol) in anhydrous CH2Cl2 (27 ml) was added methanesulfonyl chloride (0.95 ml, 12.2 mmol) and Triethylamine (2.34 ml, 16.3 mmol). The reaction stirred at room temperature for 2 hours, was diluted with dichlormethane and washed with sat. NaHCO3, and brine, dried and filtered to give a yellow oil. Purification by silica gel chromatography (Isco) gave the product as an off white solid, (662 mg, 68% ). Calcd for C27H34FNO4S (M+H) 525.62, Found 526.3

Provenance & Evidence