反应详情

4-Amino-N-(1-(6-aminohexyl)piperidin-4-ylmethyl)-5-chloro-2-methoxybenzamide (1.00 g) was dissolved in dimethylformamide (15 ml). A solution of phenyl isocyanate (0.30 ml) in methylene chloride was dropwise added under ice-cooling. The mixture was stirred at room temperature for 12 hr. and the reaction mixture was concentrated under reduced pressure. The obtained residue was purified by silica gel chromatography to give 0.30 g of 4-amino-5-chloro-2-methoxy-N-(1-(6-phenylureido)hexyl)piperidin-4-ylmethyl)benzamide.

1. temperaturecooling
2. concentrationand the reaction mixture was concentrated under reduced pressure
3. customThe obtained residue was purified by silica gel chromatography