反应详情

Benzenesulfonic acid monohydrate (30 mg, 0.17 mmol) was added to a 2-propanol (1.0 ml) solution of the compound (104 mg, 0.17 mmol) obtained in Example 70 and the resulting mixture was dissolved by heating. After stirring at room temperature for 24 hours, the precipitate was collected by filtration to give 116 mg (89%) of the title compound as a solid.

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