反应详情

5.1 g (20.8 mmol) of the compound from Example 8A in 7.1 ml (6.2 g, 41.8 mmol) of dimethylformamide diethyl acetal are heated at 100° C. for 16 h. After cooling, the mixture is concentrated under reduced pressure.

1. temperatureAfter cooling
2. concentrationthe mixture is concentrated under reduced pressure