Citric Acid → HCID 23157506, compound

Participants

Reaction Steps

To a solution of ethyl 3-[4-({4-[(3-tert-butyl-5-phenyl-1H-pyrazol-1-yl)methyl]benzyl}amino)-2-fluorophenyl]propanoate (150 mg, 0.29 mmol) in ethanol (5 mL) and tetrahydrofuran (5 mL) was added 1 M aqueous sodium hydroxide solution (2 mL), and the mixture was stirred at room temperature for 2 hr. The reaction mixture was poured into water, and the mixture was weakly acidified with 10% aqueous citric acid solution and extracted with ethyl acetate. The ethyl acetate layer was dried using a Presep Dehydration tube (manufactured by Wako Pure Chemical Industries, Ltd.), and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (20%-80% ethyl acetate/hexane) to give the title compound (91 mg, yield 65%) as a yellow oil.

Provenance & Evidence