Hydrochloric Acid → 2-(2-Hydroxy-5-(1-methylpiperidin-4-yl)benzamido)-4-phenylbenzoic acid

Participants

Reaction Conditions

Reaction Steps

A 2.0 mol/L aqueous solution of sodium hydroxide (0.33 mL) was added to a methanol (2.0 mL) suspension of the obtained methyl 2-(2-hydroxy-5-(1-methylpiperidin-4-yl)benzamido)-4-phenylbenzoate (0.058 g), followed by stirring at 60° C. for 9 hours and 20 minutes. The reaction mixture was cooled to room temperature, and 6 mol/L hydrochloric acid (0.11 mL) was added thereto. The solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography [eluent: 95-85% chloroform/methanol] to obtain 0.019 g of 2-(2-hydroxy-5-(1-methylpiperidin-4-yl)benzamido)-4-phenylbenzoic acid as a white solid.

Provenance & Evidence