Trifluoroacetic acid → 3-(2-(2-((4-(Piperazin-1-ylmethyl)phenyl)amino)-5-(trifluoromethyl)pyrimidin-4-yl)ethyl)benzamide

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Reaction Steps

tert-Butyl 4-(4-((4-(3-carbamoylphenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)benzyl)piperazine-1-carboxylate (I146) (65 mg, 0.11 mmol) was dissolved in DCM (10 mL) then TFA (1 mL) was added and the resulting mixture stirred at room temperature for 18 hours. The volatiles were evaporated under reduced pressure and the residue partitioned between 10% sodium hydroxide (25 mL) and ethyl acetate (25 mL). The aqueous phase was extracted with ethyl acetate (3×25 mL) then the combined ethyl acetate phases washed with brine, dried over sodium sulfate and evaporated. The residue was washed with toluene (2×2 mL) and DCM (2×0.5 mL) to give the title compound (37) (22 mg, 40% yield) as a white solid; 1H NMR (400 MHz, de-DMSO) δ 10.19 (s, 1H), 8.66 (s, 1H), 7.94 (s, 1H), 7.78 (s, 1H), 7.74-7.64 (m, 3H), 7.40-7.35 (m, 2H), 7.35-7.29 (m, 1H), 7.23 (d, J=8.2 Hz, 2H), 3.38 (s, 2H), 3.17-3.02 (m, 4H), 2.75-2.61 (m, 4H), 2.29 (s, 4H). LCMS Method C: rt 4.52 min; m/z 485.1 [M+H]+; m/z 483.1 [M−H]−.

Provenance & Evidence