河北医科大学药学院 空0 30 39 L机 5m5ma97为74203090270a7a TT 天然药物化学室史清文教授 16
河北医科大学药学院 天然药物化学室史清文教授 16 O O OH OCH3 H3CO HO 2 3 2 3a 3b 271 O O OH OCH3 H3CO HO 2 3 2 5.35 (dd) 13.2, 2.6 3a 3b 3.05 (dd) 2.56 (dd) 16.6, 13.3 16.6, 2.8 2 3a 3b 272 A F B E C D O CH3 5 3 4 2 6 1 O OH HO A' B' F' C' E' D' O OH CH3 HO H H 4b H 7 6 5 4 3 2 1 Chemical Shift (ppm) 1.01 2.90 1.97 1.81 1.00 8.00 1.10 1.03 1.52 2.06 1.00 0.93 0.92 0.89 0.57 7.00 6.95 6.90 6.85 6.80 6.75 Chemical Shift (ppm) 1.01 2.90 1.97 4.700 Chemical ... 1.00 3.9 3.8 3.7 3.6 3.5 Chemical Shift (ppm) 8.00 1.10 1.03 1.52 3.05 2.95 Chemical S... 2.06 2.4 2.3 2.2 Chemical Shift (ppm) 1.00 0.93 273 A F B E C D O CH3 5 3 4 2 6 1 O OH HO A' B' F' C' E' D' O OH CH3 HO H H 4b H 274 7 6 5 4 3 2 1 Chemical Shift (ppm) 2.98 2.00 1.75 2.02 2.09 11.34 2.05 6.90 6.85 6.80 Chemical Shift (ppm) 4.750 4.700 Chemical Shift (pp... 4.275 4.225 Chemical Shift (p... 3.15 3.10 3.05 3.00 Chemical Shift (ppm) O O H H MeO OH OMe HO OMe 275 4.5 4.0 3.5 Chemical Shift (ppm) 1.02 2.68 1.01 2.21 8.84 1.88 4.00 4 O 3 1 2 O 6 5 7 8 9 O HO O CH3 H3C 2' A F B E C D O O CH3 G4 G5 O G1 G2 G3 H OH HO HO G6 OH 276
河北医科大学药学院 对称的结构DMS 天然药物化学室史清文教授 17
河北医科大学药学院 天然药物化学室史清文教授 17 200 180 160 140 120 100 80 60 40 20 Chemical Shift (ppm) Acetone-d6 29.41 29.80 29.67 30.05 30.18 35.03 38.87 46.83 42.28 56.59 62.62 71.26 71.65 74.74 77.72 77.89 102.72 106.92 114.88 117.76 122.49 129.94 133.93 135.35 146.73 148.67 150.53 178.95 206.04 206.18 76 74 72 Chemical Shift (ppm) 71.26 71.65 74.74 77.72 77.89 4 O 3 1 2 O 6 5 8 7 9 O HO O CH3 H3C 2' A F B E C D O O CH3 G4 G5 O G1 G2 G3 H OH HO HO G6 OH 277 4 O 3 1 2 O 6 5 8 7 9 O HO O CH3 H C3 2' A F B E C D O O CH3 G4 G5 O G1 G2 G3 H OH HO HO G6 OH 278 2 O 3 1 4 5 8 O 7 6 1' 6' 2' 5' 3' 4' O O 7' O O H H DMSO 对称的结构 279 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 Chemical Shift (ppm) Chloroform-d 3 2 4 1 O 12 11 5 9 10 6 7 8 H3C 13 O H2C 15 CH3 14 H H H H H O 15a 15b 4 280 4.10 4.05 3 2 4 1 O 12 11 5 9 10 6 7 8 H3C 13 O H2C 15 CH3 14 H H H H H O 3.0 2.5 2.0 1.5 Chemical Shift (ppm) 4 9 2 11a 3a 6 5 11b12a 12b 14 13 281 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 Chemical Shift (ppm) 14 3.10 3.05 3.00 15 7 4 2 11a 3 9 5 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 Chemical Shift (ppm) 8a 11b 12a 12b 8b 8a 11b 8b 12a 12b H 4 O O H 12b H 12a H 3 H 5 H 9 H CH2 11a H 11b 6 CH2 OH H 7 H 8a H 8b H3C H 282