反应详情

温度

70 °C

To a stirred solution of 5-{4-[3-(2-Fluoro-5-methyl-phenylcarbamoyl)-phenoxy]-pyridin-2-yl}-1H-pyrrole-3-carboxylic acid methyl ester (140 mg, 0.3 mmol) in THF (8 ml) was added 5M NaOH solution (1 ml, 5 mmol). The mixture was heated at 70° C. for 3 hours, cooled to room temp, and poured into 100 ml of water. 2M HCl was added until pH=4. The precipitates were filtered, washed with water, and dried to give 5-{4-[3-(2-Fluoro-5-methyl-phenylcarbamoyl)-phenoxy]-pyridin-2-yl}-1H-pyrrole-3-carboxylic acid as white solid. Yield: 120 mg, 92%.

1. temperaturecooled to room temp
2. filtrationThe precipitates were filtered
3. washwashed with water
4. customdried