反应详情

Using a method similar to Example 365 step 2, and using 3-phenyl-pyrollidine (0.150 g, 1.02 mmol), 6-(4-formyl-2-ethoxy-phenoxy)-nicotinonitrile (0.201 g, 0.749 mmol), sodium triacetoxyborohydride (0.237 g, 1.12 mmol), and acetic acid (0.064 mL, 1.12 mmol) in 1,2-dichloroethane (7.5 mL), after silica gel chromatography (1:1 hexanes:ethyl acetate), provides 0.182 g (61%) of the title compound as a clear syrup: mass spectrum (electrospray): m/z=400.2 (M+1); 1H NMR (CDCl3): 8.41 (d, 1H, J=2.0 Hz), 7.86 (dd, 1H, J=2.4, 9.3 Hz), 7.29-7.26 (m, 4H), 7.20-7.14 (m, 1H), 7.07-7.03 (m, 2H), 6.99 (d, 1H, J=7.8 Hz), 6.94 (dd, 1H, J=2.0, 7.8 Hz), 4.01-3.92 (m, 2H), 3.69 (d, 1H, J=13.2 Hz), 3.62 (d, 1H, J=13.2 Hz), 3.41-3.31 (m, 1H), 3.99 (dd, 1H, J=7.8, 8.8 Hz), 2.86-2.78 (m, 1H), 2.77-2.70 (m, 1H), 2.54 (dd, 1H, J=7.3, 9.3 Hz), 2.40-2.29 (m, 1H), 1.96-1.85 (m, 1H).