Benzenesulfonyl chloride → HCID 66582892, compound

Participants

Reaction Steps

To a solution of 1,1,1-trifluoro-2-(4-((2S)-2-(((1-methylethyl)amino)methyl)-4-(2-thiophenylsulfonyl)-1-piperazinyl)phenyl)-2-propanol (0.150 g, 0.305 mmol, Example 195, Step 1) in CH2Cl2 (5.0 mL) was added 4-dimethylaminopyridine (0.0075 g, 0.061 mmol), benzenesulfonyl chloride (0.108 g, 0.610 mmol), and Hünig's base (0.159 mL, 0.915 mmol). The resulting mixture was stirred at room temperature. After 2 h, the mixture was concentrated and the crude product was purified by column chromatography (40 g of silica, 10 to 40% acetone in hexanes) to give N-(1-methylethyl)-N-(((2R)-4-(2-thiophenylsulfonyl)-1-(4-(2,2,2-trifluoro-1-hydroxy-1-methylethyl)phenyl)-2-piperazinyl)methyl)benzenesulfonamide (0.176 g) as a mixture of two isomers.

Provenance & Evidence