反应详情

The compound (255 mg) obtained in Example 121-2 was dissolved in chloroform (5.0 ml) and then added with manganese dioxide (chemically processed product) (366 mg), followed by stirring overnight at room temperature. After completion of the reaction, the solution was filtrated through Celite and the solvent was then distilled off, thereby obtaining the subject compound (245 mg) as a white solid.

1. customAfter completion of the reaction
2. filtrationthe solution was filtrated through Celite
3. distillationthe solvent was then distilled off