Hydrochloric Acid → Agomelatine

Participants

Reaction Steps

To a solution of the compound obtained in Step C (125 mg, 0.45 mmol) in tert-butanol (1 mL) at reflux there is added potassium tert-butylate (200 mg, 1.8 mmol). The mixture is stirred for 3 hours under reflux and then hydrochloric acid (1N) is added. The aqueous phase is extracted with dichloromethane and the organic phases are washed with saturated NaCl solution, dried over magnesium sulphate, filtered and evaporated. The title compound is obtained after purification by flash column chromatography (ethyl acetate-petroleum ether: 90-10, then ethyl acetate-methanol: 90-10) in the form of a solid in a yield of 68%.

Provenance & Evidence