2018/10/27 Saturday a 3C NMR 7007为2 8179ppm 183 3C NMR 8211 是8177ppm c () 22018/10/27 Saturday 2 183 O OH OH O 180 160 140 120 100 80 60 40 20 Chemical Shift (ppm) 12.43 13.20 29.59 22.76 30.26 29.84 41.19 44.51 45.39 71.71 76.64 76.79 77.21 77.00 81.69 112.40 144.91 179.32 77.00 76.25 Chemical S... 76.64 77.21 77.00 76.79 30.00 Chemical ... 29.59 30.26 29.84 H2C CH3 OH H O O H 4 H 3 H HO H 2 CH3  179 ppm 184 1 2 3 4 5 6 7 10 9 8 11 12 13 15 14 O O H O O H 50 45 40 35 30 25 20 15 Chemical Shift (ppm) 12.42 18.06 22.39 25.15 29.67 32.28 35.29 41.15 47.72 48.61 48.70 52.17 48.5 48.0 Chemica... 47.7248.61 48.70 200 180 160 140 120 100 80 60 40 20 0 Chemical Shift (ppm) Chloroform -d 18.06 12.42 22.39 25.15 29.67 32.28 41.15 35.29 47.72 48.61 52.17 77.21 77.00 76.79 80.52 177.62 201.40 211.03  177 ppm  211  201