“…U8.S Hz)7.49d IR: (nujol) 1655 (118) 'H-NMR: (CDClj) (118) See also 185. 223-224°( CHClj) (119) 228-231°( CHClj-EtOH) (130) 232-233°(MeOH) (115,119) UV: (MeOH) 230 (4.52), 283 (4.61), 320 (4.11); Xmi" 255 (4.17), 314 (4.10) (184) See also 115 C23H21N05: 390-42752 MP: 206-210°( CHCl3-MeOH) (47) [ct]D: 0° (47) UV: (EtOH) 230 (4.54), 284 IR: 1715, 1610 (49) See also 47, 156. 'H-NMR: (CDCl,) (47) See also 49, 156. NOE: 100 MHz (CDC13) (156) NCH, irr., H-l (30%), H-8 (23%) OCH3s irr., H-ll (24%); H-4 irr., H-5 (27%) MS: 405 (M+), 348, 299.5 (49) See also 47, 156. Sources: Rutaceae: Toddalia (49,91,231) Xylocarpus (37) Zantboxylum (47,146) C2,H25N05: 419.4817 MP: 206-208.5°(EtOAc) (9) lH-NMR: (CDC13) (9) MS: 419 (M+, 12), 349 (22), 348 (100), 333, 332 (17), 318 (12), 304, 290 (15), 276, 261, 247, 233, 218 (9) Sources:…”