反应详情

4-Amino-5-chloro-N-(1-(4-(2,3-dihydro-1,3-dioxo-1H-isoindol-2-yl)butyl)piperidin-4-ylmethyl)-2-methoxybenzamide (8.3 g) was dissolved in ethanol (100 ml) and hydrazine hydrate (1.1 ml) was added at room temperature with stirring. The mixture was refluxed with stirring for 3 hr. The precipitated crystals were filtered off and the filtrate was concentrated under reduced pressure to give 4.4 g of 4-amino-N-(1-(4-aminobutyl)piperidin-4-ylmethyl)-5-chloro-2-methoxybenzamide.

1. temperatureThe mixture was refluxed
2. stirringwith stirring for 3 hr
3. filtrationThe precipitated crystals were filtered off
4. concentrationthe filtrate was concentrated under reduced pressure