Cesium fluoride → N-[2-(2-{4-[4-(2-Hydroxy-ethyl)-piperazin-1-yl]-phenylamino}-pyrrolo[2,1-f][1,2,4]triazin-7-yl)-phenyl]-N-methyl-methanesulfonamide

Participants

Reaction Conditions

Reaction Steps

Into a 8-dram vial, 2-[4-(4-Amino-phenyl)-piperazin-1-yl]-ethanol (0.134 g, 0.604 mmol), N-[2-(2-Methanesulfinyl-pyrrolo[2,1-f][1,2,4]triazin-7-yl)-phenyl]-N-methyl-methanesulfonamide (0.100 g, 0.274 mmol), Cesium fluoride (0.104 g, 0.686 mmol), N,N-Diisopropylethylamine (0.1051 mL, 0.6036 mmol) and tert-Butyl alcohol (1.50 mL) were added. The reaction was heated at 120° C. overnight. LCMS suggested presence of desired product. The solvent was removed under vacuum. The reaction mixture was purified via HPLC reverse phase chromatography with 0.1% TFA in Water and 0.1% TFA in ACN. The collected fractions were lyophilized to give N-[2-(2-{4-[4-(2-Hydroxy-ethyl)-piperazin-1-yl]-phenylamino}-pyrrolo[2,1-f][1,2,4]triazin-7-yl)-phenyl]-N-methyl-methanesulfonamide as a yellow solid (48 mg, 34%). LCMS (E/I+) 522.16 (M+H). NMR 1H (DMSO-d6)-9.15 (bs, 1H), 9.24 (s, 1H), 8.94 (s, 1H), 8.02 (d, 1H, J=7.91 Hz), 7.66 (d, 1H, J=7.34 Hz), 7.47-7.62 (m, 4H), 6.98 (d, 1H, J=4.52 Hz), 6.93 (d, 1H, J=4.52), 6.87 (d, 1H, J=8.47 Hz), 3.77 (bs, 2H), 3.70 (d, 2H, J=12.98 Hz), 3.58 (d, 2H, J=12.86 Hz), 3.13-3.30 (m, 2H), 3.08 (s, 1H), 2.97 (t, 2H, J=12.42 Hz), 2.89 (s, 3H).

Provenance & Evidence