Water → (+/-)-1-[3-({Cyclopentyl[4-(trifluoromethyl)phenyl]acetyl}amino)benzyl]cyclopropanecarboxylic acid

Participants

Reaction Steps

4.83 g (9.63 mmol) of (+/−)-tert-butyl 1-[3-({cyclopentyl[4-(trifluoromethyl)phenyl]acetyl}-amino)benzyl]cyclopropanecarboxylate were dissolved in 25 ml of dichloromethane and, after addition of a drop of water, 7.5 ml of TFA were added at RT. The reaction mixture was stirred at RT for 2 h and then concentrated under reduced pressure. The crude product was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 4:1→2:1). This gave 3.89 g (90.8% of theory) of the target compound.

Provenance & Evidence