反应详情

温度

70 °C

Compound 15 (0.5 g, 1.94 mmol) was dissolved in anhydrous DMF (20 mL) and sodium azide (1.26 g, 19.43 mmol) was added, followed by stirring of the reaction mixture at 70° C. for 16 hours. The remaining procedure was followed as described for compound 16 to obtain compound 17. Yield: 0.340 g (80%). 1H NMR (500 MHz, CDCl3): δ 1.86 (tt, 2H, J=6.5, 13.5 Hz, Hc), 2.93 (s, 3H, NCH3, Ha), 3.36 (t, 2H, J=6.5 Hz, Hd), 3.40 (t, 2H, J=7.5 Hz, Hb), 3.79 (s, 3H, OMe), 6.20-6.25 (m, 1H, Hi), 6.26-6.30 (m, 1H, Hg), 6.33-6.38 (m, 1H, He), 7.10-7.18 (m, 1H, Hf); 13C NMR (125 MHz, CDCl3): δ 26.32 (Cc), 38.56 (Ca), 49.14 (Cd), 49.77 (Cb), 55.10 (OCH3), 98.90 (Ci), 101.16 (Ce), 105.39 (Cg), 129.91 (Cf), 150.47 (Cj), 160.81 (Ch). EI-MS: [M+H]+ C11H17N4O calcd 221.14, obsd 221.12.