反应详情

The synthesis method of Example 55 was applied. The compound (551 mg) obtained in Example 35 and diethoxymethyl acetate (8 ml) were used as reagents. The mixture was reacted at 90° C. for 2 hours to give 442 mg of white powdery crystals (yield 78%).

1. customThe synthesis method of Example 55
2. customThe mixture was reacted at 90° C. for 2 hours