Hydrochloric Acid → 1-[(4-Hydroxypiperidin-1-yl)carbonyl]-5-[4-(trifluoromethoxy)phenyl]piperidine-3-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

828 mg (1.92 mmol) of methyl 5-(4-(trifluoromethoxy)phenyl)-1-[(4-hydroxypiperidin-1-yl)carbonyl]piperidine-3-carboxylate were dissolved in 70 ml of methanol, 2159 mg (19.24 mmol) of potassium tert-butoxide were added and the mixture was stirred at 60° C. overnight. For work-up, the reaction solution was diluted with water and acidified with 1N hydrochloric acid (pH 1). The mixture was extracted with ethyl acetate. The combined organic phases were dried with sodium sulphate and concentrated under reduced pressure. Yield: 749 mg (94% of theory)

Provenance & Evidence