反应详情

温度

160 °C

A mixture of 1-cyclopentyl-3-ethyl-5-amino-1H-pyrazole-4-carboxamide (2.19 g, 9.86 mmol), 4-[2-(4-morpholinyl)ethoxy]benzaldehyde (3.5 g) and xylenes (10 ml) was heated at 160° C. overnight. p-Toluenesulfonic acid (0.2 g) was added and the mixture was heated at 160° C. overnight. The reaction mixture was cooled to room temperature, and the precipitate which formed was slurried with methanol, collected by filtration and washed with methanol, and then ether. The product was recrystallized from acetonitrile to afford 1-cyclopentyl-3-ethyl-6-[4-[2-(4-morpholinyl)ethoxy]phenyl]pyrazolo[3,4-d]pyrimidin-4-one.

1. temperaturethe mixture was heated at 160° C. overnight
2. temperatureThe reaction mixture was cooled to room temperature
3. customthe precipitate which formed
4. filtrationcollected by filtration
5. washwashed with methanol
6. customThe product was recrystallized from acetonitrile