反应详情

温度

90 °C

2-({2-[(tert-butoxy)carbonylamino]ethyl}amino)-6-(4-cyanophenyl)pyrimidin-4-yl (trifluoromethyl)sulfonate (134 mg, 0.275 mmol) was dissolved in a 2 M solution of morpholine in acetonitrile and the resulting solution heated to 90° C. for 18 h. The solution was cooled, water added and the suspension extracted thoroughly with ethyl acetate. Concentration of the combined organic layers gave a crude solid which was chromatographed (silica gel, 2% methanol/methylene chloride) to afford 234 mg of (tert-butoxy)-N-(2-{[4-(4-cyanophenyl)-6-morpholin-4-ylpyrimidin-2-yl]amino}ethyl)-carboxamide as a off white solid. Removal of the tert-butoxy protecting group was accomplished in the following manner: the (tert-butoxy)-N-(2-{[4-(4-cyanophenyl)-6-morpholin-4-ylpyrimidin-2-yl]amino}ethyl)carboxamide produced as described above was dissolved in anhydrous hydrogen chloride in dioxane (2 mL of a 2M solution) and stirred at room temperature for 2 h. Concentration gave 134 mg of 4-{2-[(2-aminoethyl)amino]-6-imidazolyl-4-ylpyrimidin-4-yl}benzenecarbonitrile as its (2×) hydrochloride salt.

1. temperatureThe solution was cooled
2. extractionthe suspension extracted thoroughly with ethyl acetate
3. customConcentration of the combined organic layers gave a crude solid which
4. customwas chromatographed (silica gel, 2% methanol/methylene chloride)