反应详情

Following the general procedure for Intermediate 2 using 4-fluoro-3-nitro-N,N-bis(2,2,2-trifluoroethyl)benzamide (75 mg, 0.215 mmol) and 4-aminomethyltetrahydropyran (27 mg, 0.236 mmol) in 3 mL of EtOH containing Et3N (0.045 mL, 0.323 mmol). The product was purified by flash chromatography on silica gel using 2:1/hexanes:EtOAc as eluent. Yield: 87 mg (91%); 1H NMR (CDCl3) 1.47 (m, 2H), 1.75 (m, 2H), 1.98 (m, 1H), 3.27 (t, J=5.47 Hz, 2H), 3.43 (m, 2H), 4.03 (m, 2H), 4.24 (q, J=8.33 Hz, 6H), 6.93 (d, J=8.98 Hz, 1H), 7.54 (d, J=8.98 Hz, 1H), 8.30 (s, 1H), 8.40 (brs, 1H); MS (ESI) 444.31 (MH+).

1. customThe product was purified by flash chromatography on silica gel using 2:1/hexanes