反应详情

A mixture of the compound (0.92 g) obtained in Example 29 and 4N hydrogen chloride-ethyl acetate solution was stirred at room temperature for 3 hr. The solvent was evaporated under reduced pressure, and the residue was washed with ethyl acetate to give the title compound (115 mg) as a colorless powder.

1. customThe solvent was evaporated under reduced pressure
2. washthe residue was washed with ethyl acetate