反应详情

The compound (39.8 mg) obtained in Example 1-3 and pyridine-2-aldehyde (manufactured by Tokyo Kasei Kogyo Co., Ltd.) (16.1 mg) were dissolved in anhydrous methanol (2.0 ml). The solution was added with sodium cyanoborohydride (18.9 mg) and then adjusted to pH 5 with acetic acid, followed by stirring at room temperature for 39.5 hours. After completion of the reaction, the solvent was distilled off. The residue was dissolved in chloroform and then washed with a 1 mol/l sodium hydroxide and saturated saline solution, followed by drying with anhydrous magnesium sulfate. Subsequently, the residue was distilled off and the residue was then treated with hydrochloric acid. The residue was purified through silica gel column chromatography (chloroform/methanol/water), thereby obtaining hydrochloride (7.00 mg) of the subject compound as a yellow solid.

1. customAfter completion of the reaction
2. distillationthe solvent was distilled off
3. dissolutionThe residue was dissolved in chloroform
4. washwashed with a 1 mol/l sodium hydroxide and saturated saline solution
5. dry with materialby drying with anhydrous magnesium sulfate
6. distillationSubsequently, the residue was distilled off
7. additionthe residue was then treated with hydrochloric acid
8. customThe residue was purified through silica gel column chromatography (chloroform/methanol/water)