Hydrochloric Acid → (2S)-3-[4-(2-{Butyl[2-fluoro-4-(trifluoromethyl)benzyl]amino}-2-oxoethoxy)phenyl]-2-ethoxypropanoic Acid

Participants

Reaction Steps

To a solution of ethyl(2S)-3-[4-(2-{butyl[2-fluoro-4-(trifluoromethyl)benzyl]amino}-2-oxoethoxy)phenyl]-2-ethoxypropanoate (0.748 g, 1.42 mmol) in acetonitrile (70 mL) was added aqueous 0.10 M LiOH (35 mL) and the reaction mixture was stirred at room temperature overnight. After neutralisation with 5% HCl, the solvent volume was reduced in vacuo and the remaining aqueous phase was acidified with 5% HCl and extracted with ethyl acetate (3×100 mL). The combined organic phase was washed with brine (100 mL), dried over Na2SO4, and concentrated in vacuo to afford 0.688 g (97%) of a pale yellow oil.

Provenance & Evidence