反应详情

The compound (675 mg) obtained in Example 36-3 was added with methanol (7.0 ml) and a 1 mol/l sodium hydroxide (7.0 ml), followed by stirring for 1 hour. After completion of the reaction, 1 mol/l hydrochloric acid (8.0 ml) was added to adjust the solution to pH 4. Then, the solvent was distilled off and the residue was washed with methanol, followed by drying. Consequently, the subject compound (677 mg) was obtained as a white solid.

1. additionwas added
2. distillationThen, the solvent was distilled off
3. washthe residue was washed with methanol
4. customby drying