Ethoxalyl chloride → HCID 58541957, compound

Participants

Reaction Steps

3-[1-tert-Butyl-5-(5-methoxy-pyridin-3-yl)-1H-benzimidazol-2-yl]-N-hydroxy-benzamidine (0.500 g, 1.20 mmol) is dissolved in DMF (5 mL). Chloro-oxo-acetic acid ethyl ester (0.177 g, 1.30 mmol) is added followed by diisopropyl-ethylamine (1.5 mL). The reaction mixture is stirred at room temperature for 2 hours then heated at 110° C. for 16 hours. The solvent is removed in vacuum. The residue is purified by flash chromatography (silica gel 40 g, eluted with 0-100% ethyl acetate in hexane) to give the title compound (0.454 g, 76%). LCMS (ESMS): m/z 498.61 (M++1).

Provenance & Evidence