反应详情

温度

90 °C

0.9 g of potassium carbonate and 3.3 ml of 3-amino-1-propanol are successively added to a solution of 1 g of 2-methylpropan-2-yl 4-[4-(6-cyanopyridin-3-yl)-9H-carbazol-9-yl]-2-fluorobenzoate, obtained in stage 1 of Example 49, in 8 ml of dimethyl sulphoxide. The reaction mixture is heated at 90° C. for 1 and a half hours in a microwave, and then diluted with distilled water. The aqueous phase is washed twice with ethyl acetate and the combined organic phases are washed with water and a saturated solution of sodium chloride, dried over magnesium sulphate and filtered. The residue is purified by silica gel chromatography, elution being carried out with a mixture of cyclohexane and ethyl acetate (70/30 by volume), so as to give 0.7 g of 2-methylpropan-2-yl 4-[4-(6-cyanopyridin-3-yl)-9H-carbazol-9-yl]-2-[(3-hydroxypropyl)-amino]benzoate in the form of a yellow oil, the characteristics of which are the following:

1. washThe aqueous phase is washed twice with ethyl acetate
2. washthe combined organic phases are washed with water
3. dry with materiala saturated solution of sodium chloride, dried over magnesium sulphate
4. filtrationfiltered
5. customThe residue is purified by silica gel chromatography, elution
6. additionbeing carried out with a mixture of cyclohexane and ethyl acetate (70/30 by volume)