反应详情

Add to a stirring mixture of 4-(3-phenyl-indole-1-sulfonyl)-benzoic acid (5.0 g, 13.25 mmol) and 2-aminomethyl-5-fluoropyridine (dihydrochloride) (2.9 g, 14.57 mmol) in anhydrous methylene chloride (60 mL), EDCI (3.8 g, 19.82 mmol) and 4-DMAP (6.0 g, 49.10 mmol). Stir the resulting solution overnight at room temperature, concentrate to a paste, and partition between ethyl acetate (100 mL), water (100 mL), and brine (100 mL). Dry the organic layer over sodium sulfate and concentrate to an oil. Dissolve the oil in methylene chloride and add to a biotage 65 cartridge. Elute with 1:1 ethyl acetate/hexanes to provide isolation of the pure 3 (N-(5-Fluoro-pyridin-2-ylmethyl)-4-(3-phenyl-indole-1-sulfonyl)-benzamide as a solid, 5.7 g (89%): 1H NMR (DMSO-d6) δ 9.32 (t, J=5.9 Hz, 1H), 8.46 (d, J=2.9 Hz, 1H), 8.20 (d, J=8.3 Hz, 2H), 8.12 (s, 1H), 8.03 (m, 3H), 7.82 (d, J=7.8 Hz, 1H), 7.72 (d, J=6.8 Hz, 2H), 7.62 (dt, J=2.9, 8.8 Hz, 1H), 7.50 (t, J=7.3 Hz, 2H), 7.39 (m, 4H), 4.50 (d, J=5.9 Hz, 2H); MS (ESI) m/z 486 (m+H).

1. concentrationconcentrate to a paste
2. custompartition between ethyl acetate (100 mL), water (100 mL), and brine (100 mL)
3. dry with materialDry the organic layer over sodium sulfate
4. concentrationconcentrate to an oil
5. dissolutionDissolve the oil in methylene chloride
6. additionadd to a biotage 65 cartridge
7. washElute with 1:1 ethyl acetate/hexanes