Triethylamine → HCID 178427057, compound

Participants

Reaction Steps

A solution of 0.10 g (0.43 mmol) of 3-methyl-4-(pyrrolidin-1-ylcarbonyl)benzoic acid, 0.184 g (0.450 mmol) of 1-(5-fluoro-1H-benzimidazol-2-yl)ethylamine×2(CF3COOH) (prepared analogously to Methods 1a, 10b, 10c) and 0.35 mL (2.50 mmol) of triethylamine in 3 mL of dimethylsulfoxide is stirred at ambient temperature and combined with 0.193 g (0.600 mmol) of TBTU. The reaction mixture is stirred for 1 hour at ambient temperature, then diluted with ethyl acetate and washed successively with 10% aqueous citric acid, twice with 2 molar sodium hydroxide solution and with water. The organic phase is dried with sodium sulfate and concentrated. The crude product is taken up in ethyl acetate, precipitated with tert-butylmethylether, and dried. Yield: 83 mg (49% of theory); Rf value: 0.34 (silica gel; ethyl acetate/ethanol=9:1); C22H23FN4O2 (394.45); mass spectrum: (M+H)+=395

Provenance & Evidence