Benzaldehyde → HCID 19734538, compound

Participants

Reaction Steps

N-cyano-N'-[2-(4-aminophenyl)ethyl]-3-pyridinecarboximidamide (0.20 g, 0.75 mmol) was dissolved in methanol (15 ml), and benzaldehyde (0.12 g, 1.13 mmol) and sodium cyanoborohydride (0.10 g, 1.59 mmol) were added. The mixture was stirred at room temperature for 2 hours. After the reaction was completed, the reaction solution was concentrated under reduced pressure. The residue thus obtained was extracted with chloroform (50 ml×3). The chloroform layer was washed with water (100 ml), dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residual concentrate was subjected to chromatography on a silica gel column (WAKO GEL C-200, 50 g) eluting with chloroform-methanol (100:1). The eluted fractions were concentrated under reduced pressure and crystallized from methanol-diethyl ether to give the title compound (0.12 g, 0.34 mmol, yield: 75%) as colorless needles.

Provenance & Evidence