反应详情

温度

90 °C

3.99 g (20.0 mmol) of the compound from Example 1A are dissolved in 13.7 ml of dimethylformamide diethyl acetal, and the mixture is stirred with microwave irradiation at 90° C. for 30 min. The mixture is then concentrated on a rotary evaporator, and the residue is chromatographed on silica gel 60 (mobile phase: dichloromethane→dichloromethane/methanol 20:1).

1. concentrationThe mixture is then concentrated on a rotary evaporator
2. customthe residue is chromatographed on silica gel 60 (mobile phase: dichloromethane→dichloromethane/methanol 20:1)