3.2.5. Compound **9**

Colorless gum (4.0 mg, 14%); UV (MeOH) λmax (log ε) 241 (3.90), 326 (2.94) nm; IR (UATR) νmax 3458, 2981, 1747, 1705, 1278, 1199, 1165, 1078, 1026, 975, 712 cm<sup>−</sup>1; 1H NMR (800 MHz, CD3OD) δ<sup>H</sup> 3.83 (3H, s, 7-OMe), 3.97 (3H, s, 6-OMe), 4.60 (2H, s, H-9), 7.16 (1H, m, H-13), 7.24 (2H, m, H-11, H-15), 7.27 (1H, s, H-5), 7.38 (1H, s, H-8), 7.40 (2H, m, H-12, H-14), 7.61 (1H, d, *J* = 5.7 Hz, H-4), 8.22 (1H, d, *J* = 5.7 Hz, H-3); 13C NMR (200 MHz, CD3OD) δ<sup>C</sup> 42.5 (C-9), 56.3 (7-OMe), 56.5 (6-OMe), 105.5 (C-8), 106.5 (C-5), 120.6 (C-4), 124.3 (C-8a), 127.4 (C-13), 129.6 (2C, C-11, C-15), 129.5 (2C, C-12, C-14), 135.5 (C-4a), 140.5 (C-10), 140.8 (C-3), 151.7 (C-7), 154.6 (C-6), 158.9 (C-1); (+)-LRESIMS *m*/*z* (rel. int.) 280 (100) [M + H]+; (+)-HRESIMS *m*/*z* 280.1327 [M + H]<sup>+</sup> (calcd for C18H18NO2, 280.1332).
