反应详情

Concentrated hydrochloric acid (0.026 ml, 0.31 mmol) was added to a 2-propanol (2.0 ml) solution of the compound (192 mg, 0.31 mmol) obtained in Example 70 and the resulting mixture was dissolved by heating. After stirring at room temperature for 18 hours, the precipitate was collected by filtration to give 173 mg (85%) of the title compound as a solid.

1. dissolutionthe resulting mixture was dissolved
2. temperatureby heating
3. filtrationthe precipitate was collected by filtration