Potassium Carbonate → 2-methylpropan-2-yl 4-[4-(6-cyanopyridin-3-yl)-9H-carbazol-9-yl]-2-[(8-methyl-8-azabicyclo[3.2.1]oct-3-yl)amino]benzoate

関与物質

反応条件

反応手順

0.89 g of potassium carbonate and 6 g of 8-methyl-8-azabicyclo[3.2.1]octan-3-amine 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 100° C. for 1 hour and 40 minutes in a microwave, and then diluted with distilled water. The aqueous phase is extracted 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 concentrated to dryness under reduced pressure. The residue is purified by silica gel chromatography, elution being carried out with a mixture of dichloromethane and methanol (92/8 as mixtures), so as to give 0.34 g of 2-methylpropan-2-yl 4-[4-(6-cyanopyridin-3-yl)-9H-carbazol-9-yl]-2-[(8-methyl-8-azabicyclo[3.2.1]oct-3-yl)amino]benzoate in the form of a white powder, the characteristics of which are the following:

情報源と証拠