反应详情

To a solution of 5-(6-(1H-1,2,3-triazol-4-yl)-3H-imidazo[4,5-b]pyridin-3-yl)-2′,4′-difluoro-[1,1′-biphenyl]-3-amine (70 mg, 0.179 mmol) in DCM was added pyridine (42 mg, 0.53 mmol, 3.0 eq.) followed by ethanesulfonyl chloride (20 mg, 0.179 mmol, 1.0 eq.). The reaction was monitored by LCMS. After completion of the reaction the solvent was distilled off and the crude product was purified by preparative HPLC to give the product in 9.3% yield (8 mg). 1H NMR (300 MHz, DMSO): δ 10.4 (s, 1H) 9.0-8.97 (m, 2H), 8.64 (d, 1H), 7.92 (s, 1H), 7.75-7.64 (m, 3H), 7.47-7.43 (m, 3H), 3.31-3.24 (q, 2H), 1.39-1.34 (t, 3H); LC-MS (ESI): Calculated mass: 481.4; Observed mass: 481.8 [M+H]+ (rt: 1.36 min).

1. customAfter completion of the reaction the solvent
2. distillationwas distilled off
3. customthe crude product was purified by preparative HPLC
4. customto give the product in 9.3% yield (8 mg)
5. custom481.8 [M+H]+ (rt: 1.36 min)