反应详情

温度

70 °C

A solution of potassium hydroxide (0.139 g, 2.48 mmol) in absolute ethanol (3.0 mL) was added to a pressure tube charged with 4-(ethylamino)-6-methyl-2-(methylthio)pyrimidine-5-carbaldehyde (0.229 g, 1.08 mmol), prepared using procedures similar to those described for Intermediate 1, and 2-(1H-imidazol-5-yl)acetonitrile (0.174 g, 162 mmol) and heated to 70° C. After 12 h, the reaction was allowed to cool to room temperature and concentrated in vacuo affording 8-ethyl-6-(1H-imidazol-5-yl)-4-methyl-2-(methylthio)pyrido[2,3-d]pyrimidin-7(8H)-imine as a solid. The product was used in the subsequent step without further purification.

1. customprepared
2. temperatureto cool to room temperature
3. concentrationconcentrated in vacuo