反应详情

The product (5.2 g, 38.5 mmol) obtained in Step 2 was dissolved in AcOH (20 mL) and Ac2O (5 mL), heated to 60° C., reacted for 12 h, and concentrated to obtain a crude product (6 g, 88.0%).

1. customreacted for 12 h
2. concentrationconcentrated