HCID 22379953, compound → HCID 22380348, compound

Participants

Reaction Steps

1-Ethyl-2-{[2-(3-fluorophenyl)-pyrazol-3-yl]methyl}-5-amino-1H-benzimidazole (274 mg) is treated with N,N-dimethylformamide azine hydrochloride (1 eq) in toluene (10 mL) and methoxyethanol (10 mL) and refluxed for 6 h. After cooling and concentrating, the residue is treated with water and extracted with dichloromethane (2×). The aqueous layer is adjusted to pH 8 with aqueous sodium bicarbonate and extracted with dichloromethane (2×). The combined organic extracts are washed with saturated aqueous sodium chloride, dried (MgSO4), concentrated, purified by preparative silica gel chromatography, and triturated with ether to afford 1-Ethyl-2-{[2-(3-fluorophenyl)-pyrazol-3-yl]methyl}-5-(1,2,4-triazol-1-yl)-1H-benzimidazole, which is converted to the hydrochloride salt in ethyl acetate. LCMS MH+ 406.2.

Provenance & Evidence