反应详情

温度

80 °C

To a stirred solution of N-(4-(cyclopropyl(6-methoxypyridin-3-yl)methoxy)-3-methoxybenzyl)-5-(1-methyl-1H-pyrazol-4-yl)-3-nitropyridin-2-amine (1.10 g, 2.13 mmol) and ammonium chloride (0.564 g, 10.54 mmol) in ethanol (8 mL) and water (2 mL) was added iron powder (0.596 g, 10.67 mmol). The mixture was heated to 80° C. After 2 h, the mixture was allowed to cool to room temperature and was filtered through Celite. The filtrate was concentrated. Chromatographic purification of the residue (neutral alumina, 2% methanol in dichloromethane elute) afforded 0.984 g (95%) of N2-(4-(cyclopropyl(6-methoxypyridin-3-yl)methoxy)-3-methoxybenzyl)-5-(1-methyl-1H-pyrazol-4-yl)pyridine-2,3-diamine as a brown solid.

1. temperatureto cool to room temperature
2. filtrationwas filtered through Celite
3. concentrationThe filtrate was concentrated
4. customChromatographic purification of the residue (neutral alumina, 2% methanol in dichloromethane elute)