反应详情

To an AcOEt (200 ml) solution of the compound (42.0 g) obtained in Example 8-(2), 4N HCl-AcOEt solution (200 ml) was added and the mixture was stirred at room temperature for 4 hours. The solvent was distilled off under reduced pressure to give a crude form of the titled compound (35.0 g).

1. distillationThe solvent was distilled off under reduced pressure