河北医科大学药学院 BC NMR 豆醇 Stigmasterol L BC NMR BC NMR m BC NMR BC NMR *漆 天然药物化学教研室史清文教授 9 河北医科大学药学院 天然药物化学教研室 史清文教授 9 7 6 5 4 3 2 1 Chemical Shift (ppm) Chloroform-d 6.5 6.4 6.3 6.2 Chemical Shift (ppm) 5.20 5.15 5.10 Chemical Shift (ppm) 4.00 3.95 3.90 Chemical Shift (ppm) H3C HO CH3 CH3 OH H H CH3 CH3 H3C OH Stigmasterol 229 豆甾醇 H3C HO CH3 CH3 OH H H CH3 CH3 H3C OH Stigmasterol 230 231 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 232 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  201 233 Formula C15H20O3 FW 248.3175 Acquisition Time (sec) 0.9789 Comment 09st412 Yucheng Gu ZML-16 Date Dec 9 2009 Date Stamp Dec 9 2009 File Name \\friapfil04\NMRprocessor\MReid Projects\09st412\CARBON_01.fid\fid Frequency (MHz) 150.85 Nucleus 13C Number of Transients 2048 Original Points Count 32768 Points Count 262144 Pulse Sequence s2pul Receiver Gain 60.00 Solvent CHLOROFORM-d Spectrum Offset (Hz) 16433.1406 Spectrum Type STANDARD Sweep Width (Hz) 33472.80 Temperature (degree C) 25.000 6 O 7 10 8 9 5 4 3 2 14 13 12 11 O 16 CH2 17 O 1 CH3 18 H C3 15 184 176 168 160 152 144 136 128 120 112 104 96 88 80 72 64 56 48 40 32 24 16 8 0 Chemical Shift (ppm) 16.33(13) 17.94(18) 29.40(12) 23.84(15) 32.44(4) 36.94(10) 37.26(11) 37.56(14) 39.40(5) 61.05(2) 67.39(3) 75.04(6) 123.66(17) 136.57(9) 169.53(8) No. Atom Exp. Shift (ppm) 1 2 61.05 2 3 67.39 3 4 32.44 4 5 39.40 5 6 75.04 6 8 169.53 7 9 136.57 8 10 36.94 9 11 37.26 10 12 29.40 11 13 16.33 12 14 37.56 13 15 23.84 14 17 123.66 15 18 17.94  169 ppm 234 HO OAc O OBz H O O OH O NH OH O AcO 2 4 7 10 13 15 1' 2' 18 19 20 16 3' 5 6 3 14 1 12 11 17 8 紫杉醇