1-Methyl-2-imidazolecarboxaldehyde → HCID 11656139, compound

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Reaction Steps

The compound (15.1 mg) obtained in Example 8-1 was dissolved in methanol (1.5 ml). The solution was added with 1-methyl-2-imidazole carboxaldehyde (5.0 mg) and sodium cyanoborohydride (4.8 mg). The solution was adjusted to pH 4 by addition of acetic acid, followed by stirring at room temperature for 2.5 hours. Then, the solution was added with a saturated aqueous sodium hydrogen carbonate solution to stop the reaction and then subjected to extraction with chloroform. After that, the organic layer was washed with water and a saturated saline solution and then dried with anhydrous sodium sulfate. After the solvent was distilled off, the residue was purified through silica gel column chromatography (chloroform/methanol) and treated with hydrochloric acid, thereby obtaining a hydrochloride (16.5 mg) of the subject compound as a pale-yellow solid.

Provenance & Evidence