... (1 H,t), 5,53 (1 H,t) 5,08 (2 H,m), 4,72 (2 H,d), 4,64 (2 H,d), 3,96 (3 H,s), 3,95 (3 H,s), 3,87 (3 H,s), 2,02 2,14 (8 H,m), 1,77 (3 H,s), 1,68 (3 H,s), 1,67 (3 H,s), 1,66 (3 H,s), 1,64 (3 H,s) 1,59 (3 H,s). ... IR (KBr), (cm-1): 2926, 1757, 1630, 1610, 1469, 1363, 1224, 1096, 820; 1H-NMR( CDCl3), (ppm): 7,73 (1 H,d), 7,63 (1 H,dd),7,16 (1 H,d), 6,88 (1 H,s), 3,93 (3 H,s), 3,90 (3 H,s), 3,79 (3 H,s), ... 6,49 (1 H,s), 6,13 (2 H,m), 5,46 (1 H,m), 5,36 (1 H,m), 5,33 (1 H,m), 5,21 (1 H,m), 4,72 (1 H,t), 4,71 (1 H ,t), 4,62 (2 H,t), 4,61 (2 H,t), 3,96 (3 H,s), 3,95 (3 H,s), 3,87 (3 H,s). Thử hoạt tính độc tế...