反应详情

温度

100 °C

To a solution of 4-(2-amino-3-nitrobenzoyl)amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide (3.88 g) in ethanol (40 ml) were added a solution of ammonium chloride (385 mg) in water (10 ml) and iron powder (2.01 g) and the mixture was stirred at 100° C. for 2 hours. The mixture was filtered through a bed of celite and the filtrate was concentrated in vacuo. The residue was diluted with ethyl acetate and the solution was washed with aqueous saturated sodium bicarbonate solution and brine. The organic layer was dried over magnesium sulfate and the solution was concentrated in vacuo to give 4-(2,3-diaminobenzoyl)amino-3-methoxy-N-methyl-N-[4-methyl-2-[5-(4-methylpiperazin-1-yl)carbonylpent-1-yloxy]phenyl]benzamide as a yellow powder (3.42 g).

1. filtrationThe mixture was filtered through a bed of celite
2. concentrationthe filtrate was concentrated in vacuo
3. additionThe residue was diluted with ethyl acetate
4. washthe solution was washed with aqueous saturated sodium bicarbonate solution and brine
5. dry with materialThe organic layer was dried over magnesium sulfate
6. concentrationthe solution was concentrated in vacuo