Hydrochloric Acid → HCID 18001022, compound

Participants

Reaction Steps

To dimethylsulfide (170 ml) is added dropwise with stirring aluminum chloride (23.6 g) under ice-cooling, and further thereto is added dropwise a solution of 5-methoxycarbonylmethyl-1-[4-(2-phenoxyacetylamino)-benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (16.76 g) in dichloromethane (150 ml), and the mixture is stirred at room temperature for two hours. The reaction mixture is poured into a mixture of conc. hydrochloric acid and crashed ice, and the mixture is extracted with dichloromethane. The organic layer is washed with water, dried over magnesium sulfate, and evaporated to remove the solvent. The residue is purified by silica gel column chromatography (solvent; dichloromethane:methanol=30:1) to give 5-carboxymethyl-1-[4-(2-phenoxyacetylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (13.67 g) as white powder.

Provenance & Evidence