反应详情

The synthesis method of Example 96 was applied. The compound (1.50 g) obtained in Example 29 and trimethylorthobenzoate (5.0 ml) were used. The mixture was reacted at 150° C. for 2 hours. The resulting crystals were collected by filtration and purified by a method similar to the method of Example 98, whereby crystals (1.53 mg) were obtained (yield 66%). The crystals were recrystallized from methanol to give colorless transparent plate crystals.

1. customThe synthesis method of Example 96
2. customThe mixture was reacted at 150° C. for 2 hours
3. filtrationThe resulting crystals were collected by filtration
4. custompurified by a method similar to the method of Example 98