反应详情

4-(4-Methylpiperazin-1-ylmethyl)benzoic acid (ca 0.19 g), 6-[2-(4-fluoro-phenyl)-chroman-6-yloxy]pyridin-3-ylamine (0.18 g) and 1-(3-dimethylamino-propyl)-3-ethylcarbodiimide hydrochloride (0.12 g) were added into dichloromethane (12 ml). The mixture was stirred at room temperature and after 4 hours more 4-(4-methylpiperazin-1-ylmethyl)-benzoic acid (ca 0.11 g) and 1-(3-dimethyl-amino-propyl)-3-ethylcarbodiimide hydrochloride (0.0.46 g) were added. Stirring was continued for additional 3 hours. Water and dichloromethane were added and organic and water phases were separated. Water phase was extracted with dichloromethane. The product was purified by column chromatography using dichloromethane-methanol (9:1) as an eluent to give N-{6-[2-(4-fluorophenyl)chroman-6-yloxy]-pyridin-3-yl}-4-(4-methylpiperazin-1-ylmethyl)benzamide. 1H NMR (300 MHz, d6-DMSO) δ: 1.90-2.08 (m, 1H), 2.11-2.21 (m, 1H), 2.18 (s, 3H), 2.38 (bs, 8H), 2.68-2.79 (m, 1H), 2.91-3.05 (m, 1H), 3.54 (s, 2H), 5.13 (dd, 1H, J 2.0, 10.1 Hz), 6.86 (d, 2H, J 1.2 Hz), 6.90 (s, 1H), 6.98 (d, 1H, J 8.8 Hz), 7.19-7.27 (m, 2H), 7.43-7.54 (m, 4H), 7.92 (d, 2H, J 8.2 Hz), 8.18 (dd, 1H, J 2.7, 8.9 Hz), 8.48 (d, 1H, J 2.7 Hz), 10.31 (s, 1H).

1. additionwere added
2. customorganic and water phases were separated
3. extractionWater phase was extracted with dichloromethane
4. customThe product was purified by column chromatography