反应详情

The compound (63.9 mg) obtained in Example 3-2 was dissolved in anhydrous methanol (1.3 ml) and then added with 2-methoxybenzaldehyde (manufactured by Tokyo Kasei Kogyo Co., Ltd.) (0.0350 ml) and trimethyl orthoformate (manufactured by Tokyo Kasei Kogyo Co., Ltd.) (0.0560 ml), followed by stirring at room temperature for 30 minutes. The solution was added with sodium borohydride (19.3 mg), followed by stirring at room temperature for 15 minutes. After completion of the reaction, the solvent was distilled off. Then, the residue was added with water and extracted with chloroform, and the extract was washed with saturated saline solution, followed by drying with anhydrous magnesium sulfate. The solvent was distilled off and treated with hydrochloric acid. The residue was purified through a solid-phase extraction column (Sep-Pack®, tC18, manufactured by Waters Corporation), thereby obtaining hydrochloride (6.80 mg) of the subject compound as a white solid.

1. stirringby stirring at room temperature for 15 minutes
2. customAfter completion of the reaction
3. distillationthe solvent was distilled off
4. additionThen, the residue was added with water
5. extractionextracted with chloroform
6. washthe extract was washed with saturated saline solution
7. dry with materialby drying with anhydrous magnesium sulfate
8. distillationThe solvent was distilled off
9. additiontreated with hydrochloric acid
10. customThe residue was purified through a solid-phase extraction column (Sep-Pack®, tC18, manufactured by Waters Corporation)