反应详情

A mixture of the compound (0.18 g) obtained in Example 3 and 4N hydrogen chloride-ethyl acetate solution was stirred at room temperature for 1 hr. The solvent was evaporated under reduced pressure, and the residue was washed with ethyl acetate to give the title compound (0.17 g) as a colorless powder.

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