Acetic Acid → HCID 11677024, compound

Participants

Reaction Steps

The compound (116.3 mg) obtained in Example 44-6 was dissolved in methanol (5.81 ml) and added with 1-methyl-2-imidazole carboxaldehyde (52.0 mg) and sodium cyanoborohydride (39.6 mg). The solution was adjusted to pH 4 with acetic acid and stirred at room temperature for 6 days. The reaction solution was concentrated under reduced pressure. The residue was dissolved in chloroform, washed with a 1 mol/l sodium hydroxide aqueous solution and a saturated saline solution, and dried with anhydrous sodium sulfate, followed by concentration under reduced pressure. The residue was purified through silica gel column chromatography (chloroform/methanol) and treated with hydrochloric acid, thereby obtaining a hydrochloride (163.4 mg) of the subject compound as a white solid.

Provenance & Evidence