Sodium Hydroxide → HCID 57964332, compound

Participants

Reaction Steps

To a solution of 2.8 g (12.8 mmol) of 4-{2-[4-(3-ethoxycarbonylphenyl)piperazin-1-yl]ethyl}piperidine-1-carboxylic acid tert-butyl ester are added 12.8 mL of 1N aqueous sodium hydroxide solution. The mixture is stirred overnight at room temperature then concentrated under reduced pressure. The residue is acidified with 12.8 mL of 1N aqueous hydrochloric acid solution. The product is extracted with ethyl acetate, washed with water, dried over magnesium sulfate, filtered and concentrated under reduced pressure to give 2.5 g (47%) of 4-{2-[4-(3-carboxyphenyl)piperazin-1-yl]ethyl}piperidine-1-carboxylic acid tert-butyl ester.

Provenance & Evidence