... (C -14 ), 25 ,4 (C -15 ), 28 ,9 (C -16 ), 56,0 (C -17 ), 12 , 2 (C -18 ), 19 ,0 (C -19 ), 40,5 (C -20 ), 19 ,4 (C - 21 ), 13 8,3 (C -22 ), 12 9 ,3 (C -23 ), 51, 3 (C -24 ), 31, 9 (C- 25 ), 19 ,0 (C -26 ), 21 ,1 (C- 27 ), 25 ,4 (C -28 ), ... (CD3Cl, 12 5 MHz) (ppm): 37,3 (C -1) , 31, 7 (C -2) , 71, 8 (C-3), 42, 4 (C-4), 14 0,8 (C-5), 12 1 ,7 ( C-6), 31, 9 (C-7), 31, 9 (C-8), 50 ,2 (C-9), 36,6 (C -10 ), 21 ,1 (C -11 ), 39,7 (C- 12 ) , 42, 3 (C -13 ), 56,9 ... 1, 10 (3H, s, CH3- 31) ; 1, 64 (3H, t, J = 4 ,1 Hz, CH3 -27 ); 2, 30 (1H, ddd, J = 2, 6, 4 ,2, 14 ,0 Hz, H-2A); 2, 70 (1H, dt, J = 6,4, 14 ,0 Hz, H-2B); 4,67 (br s, H 2 -26 ). - Phổ 13 C-NMR: xem bảng...