Acetic Acid → HCID 18001088, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 7-chloro-5-[(4-methyl-1-piperazinyl)carbonyl-methyl]-1-(2-methoxy-2-aminobenzoyl)-2,3,4,5-tetrahydro-1H-benzazepine (0.8 g) in methanol (30 ml) are added o-tolualdehyde (0.35 ml) and acetic acid (1 ml), and the mixture is stirred at 50-60° C. for 2-3 hours. To the mixture is added sodium cyanoborohydride (0.11 g) at room temperature, and the mixture is stirred for two hours. The mixture is evaporated to remove the solvent, and to the residue is added water. The mixture is extracted with ethyl acetate, and the extract is dried, and evaporated. The residue is purified by silica gel column chromatography (solvent; dichloromethane:methanol =50:1→25:1), and recrystallized from acetone/diethyl ether to give 7-chloro-5-[(4-methyl-1-piperazinyl)carbonylmethyl]-1-[2-methoxy-4-(2-methylbenzylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (0.71 g) as white powder.

Provenance & Evidence