反应详情

Needles; mp 183-184° C.; UV (MeOH) λmax (log ε) 330.5 (4.43), 319.5 (4.49), 218 (4.49) nm; IR (NaCl) γmax 3356, 2924, 1617, 1456 cm−1; 1H NMR (CD3OD, 500 MHz) δ 1.72 (3H, s, H-4″), 1.74 (3H, s, H-5″), 3.32 (2H, brd, H-1″), 5.35 (1H, m, H-2″), 6.23 (1H, t, J=2.2 Hz, H-4′), 6.74 (2H, d, J=2.2 Hz, H-2′), 6.84 (1H, s, H-3), 6.87 (1H, s, H-7), 7.18 (1H, s, H-4); 13C NMR (CD3OD, 125 MHz) δ 17.8 (C-4″), 26.0 (C-5″), 29.5 (C-1″), 97.8 (C-7), 102.2 (C-3), 103.3 (C-4′), 103.8 (C-2′), 121.4 (C-4), 122.7 (C-9), 124.4 (C-2″), 126.2 (C-5), 132.8 (C-3″), 134.0 (C-1′), 154.6 (C-6), 155.5 (C-2), 155.7 (C-8), 159.9 (C-3′); EIMS m/z 310 (M+, 76), 255 (100), 254 (56), 226 (10).