反应详情

To a stirred solution of (2S,5R)-1-(chloroacetyl)-5-ethynylpyrrolidine-2-carbonitrile (0.03 g, 0.15 mmol, Example 8D) in acetonitrile (1 mL) at room temperature was added 4-(4-aminocyclohexyloxy)-benzoic acid tert-butyl ester (89 mg, 0.31 mmol). The reaction mixture was stirred at room temperature for 18 hours, concentrated under reduced pressure and purified by flash chromatography with 3% methanol/97% dichloromethane to provide the titled compound. MS (ESI) m/z 452 (M+H)+; 1H NMR (CDCl3) δ 7.91 (d, 2H), 6.86 (d, 2H), 4.74 (m, 1H), 4.60 (m, 1H), 4.28 (m, 1H), 3.64 (m, 2H), 2.32-2.59 (m, 6H), 2.17 (m, 2H), 2.04 (m, 2H), 1.24-1.54 (m, 4H).

1. concentrationconcentrated under reduced pressure
2. custompurified by flash chromatography with 3% methanol/97% dichloromethane