Hydrochloric Acid → HCID 58476188, compound

Participants

Reaction Steps

A mixture of methyl 3,3-dimethyl-2-(3-(piperidine-1-carbonyl)phenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylate (68 mg, 0.24 mmol) in methanol (6 mL) and 1N sodium hydroxide aqueous solution (2.5 mL, 2.5 mmol) was heated to reflux for 1 h. LC-MS showed the reaction was complete. The solvent was removed in vacuo to give white solid, which was dissolved in water and acidified with 1N hydrochloric acid solution to pH=2. The precipitated white solid was collected by filtration and back-dissolved in aqueous sodium hydroxide solution, then was acidified with 1 M hydrochloric acid solution again to pH=7. The white precipitated solid was collected by filtration and dried in vacuo to afford 55 mg of 3,3-dimethyl-2-(3-(piperidine-1-carbonyl)phenyl)-1,2,3,4-tetrahydroquinoline-6-carboxylic acid. Yield: 83.8%. LC-MS(M+1)=393.2.

Provenance & Evidence