反应详情

NaBH4 (4.45 mg, 0.13 mmol) was added to 3′-fluoro-4′-(3-formyl-1H-pyrrolo[2,3-b]pyridin-5-yl)-N-methyl-[1,1′-biphenyl]-2-sulfonamide (18 mg, 0.044 mmol) in MeOH (0.52 mL). The mixture was stirred at rt for 1 h and then concentrated to dryness. The residue was subjected to FCC purification to give the title compound. MS (ESI): mass calcd. for C21H18FN3O3S, 411.11; m/z found, 412.2 [M+H]+. 1H NMR (500 MHz, CDCl3) δ 9.36 (s, 1H), 8.34 (s, 1H), 8.23 (dd, J=7.9, 1.2, 1H), 8.12 (s, 1H), 7.68-7.61 (m, 1H), 7.61-7.54 (m, 1H), 7.42-7.30 (m, 5H), 5.21 (s, 1H), 4.88 (s, 2H), 2.52 (dd, J=13.9, 5.3, 3H).

1. concentrationconcentrated to dryness
2. customThe residue was subjected to FCC purification