反应详情

The synthesis method of Example 55 was applied. The compound (486 mg) obtained in Example 33 and diethoxymethyl acetate (5 ml) were used as reagents. The mixture was reacted at 95° C. for 2 hours to give 282 mg of pale-brown crystals (yield 56%).

1. customThe synthesis method of Example 55
2. customThe mixture was reacted at 95° C. for 2 hours