Triethylamine → HCID 59175839, compound

Participants

Reaction Steps

To a stirring solution of 4-(3-(cyclopropylmethyl)ureido)benzoic acid (0.337 mmol, 79 mg), 1-(4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)benzyl)piperazin-2-one (0.281 mmol, 100 mg) and triethylamine (0.842 mmol, 85 mg) in dichloromethane (10 ml) was added 1-propanephosphonic acid cyclic anhydride (0.421 mmol, 268 mg; 50% solution in ethyl acetate). The reaction mixture was stirred at room temperature for 2 hours. The reaction mixture was diluted with dichloromethane (20 mL) and washed with saturated aqueous sodium hydrogen carbonate solution (30 mL). The organic phase was concentrated and the resulting residue was purified by column chromatography on silica gel (eluting with 5% methanol/95% dichloromethane) to afford the title compound (36 mg). MS (ESI) m/z 573.0 [M+H]+

Provenance & Evidence