反应详情

Combine 6-(4-formyl-phenoxy)-nicotinamide (compound of example 332, step 1) (0.152 g, 0.628 mmol), 2-phenyl-piperidine hydrochloride salt (0.122 g, 0.620 mmol), triethylamine (0.178 mL, 1.28 mmol) in methanol (6.0 mL) and stir. After 21 hours, add sodium borohydride (0.108 g, 2.85 mmol). After about 24 hours, concentrate and purify the residue by silica gel chromatography (25:1→4:1 methylene chloride:methanol) then reverse-phase HPLC to provide 0.0047 g (2%) of the title compound as a white solid: mass spectrum (electrospray): m/z=388.2 (M+1); 1H NMR (methanol-d4): 8.66 (d, 1H, J=2.4 Hz), 8.29 (dd, 1H, J=2.4, 8.3 Hz), 7.52 (d, 2H, J=7.3 Hz), 7.41 (t, 2H, J=7.3 Hz), 7.37-7.28 (m, 3H), 7.11 (d, 2H, J=8.3 Hz), 7.02 (d, 1H, J=8.8 Hz), 3.81 (d, 1H, J=10.7 Hz), 3.39 (s, 2H), 3.20-2.94 (m, 2H), 2.17 (s br, 1H), 1.93-1.61 (m, 4H), 1.59-1.44 (m, 1H).

1. waitAfter about 24 hours
2. concentrationconcentrate
3. custompurify the residue by silica gel chromatography (25:1→4:1 methylene chloride:methanol)