北京大学药学院.高等波谱解析 黄酮类化合物-2.ppt

* The 1H NMR Spectrum of III-C 3.95 1H, dt, J=3.5, 9.5Hz H-5b 3.70 1H, dd, J=5.5, 11.0Hz H-6b 3.66 1H, t, J=6.5Hz H-3 3.88 3H, s OMe-4 7.60 1H, dd, J=2.0, 8.5Hz H-6 7.47 1H, d J=2.0Hz H-2 7.15 1H, d J=8.5Hz H-5 6.83 1H, s H-3 6.82 1H, d J=2.0Hz H-8 6.49 1H, d J=2.0Hz H-6 5.44 OH-2 4.17 1H, d J=7.5Hz H-1 5.06 1H, d J=7.5Hz H-1 3.64 1H, t, J=5.5Hz H-5a 3.09 1H, ddd J=3.5, 8.8, 8.8Hz H-3 3.02 1H, dd J=3.5, 7.5Hz H-2 2.99 1H, dd, J=5.5, 11.0Hz H-6a 5 2 4 4 5.22 OH-4 5.18 OH-3 4.97 OH-2 4.95 OH-4 4.88 OH-3 12.95 1H, s, OH-5 9.45 1H, s, OH-3 The 13C NMR Spectrum of III-C The HSQC Spectrum of III-C 65.7 68.4 69.3 69.5 73.1 73.4 75.6 76.2 76.5 3.95 1H, dt, J=3.5, 9.5Hz 3.70 1H, dd, J=5.5, 11.0Hz 3.65 2H, dt, J=5.5, 9.5Hz 3.09 1H, ddd, J=4.0, 8.8, 8.8Hz 3.02 1H, t, J=3.5Hz 3.00 1H, t, J=5.5Hz 76.5 76.2 75.6 73.4 73.1 69.5 69.3 68.4 65.7 5b 6b 3 5a 5 2 4 4 3 2 6a The HSQC Spectrum of III-C 94.8 99.6 99.9 103.8 104.2 105.5 112.2 113.2 118.9 7.60 1H, dd J=2.0, 8.5Hz 6 7.47 1H, d J=2.5Hz 2 7.15 1H, d J=8.5Hz 5 6.83 1H, s 3 6.82 1H, dd J=2.0, 7.0Hz 8 6.49 1H, d J=2.0Hz 6 5.06 1H, d J=7.5Hz 1 4.17 1H, d J=7.5Hz 1 94.8 99.6 99.9 103.8 104.2 105.5 112.2 113.2 118.9 7.60 H-6 7.47 H-2 7.15 H5 6.82 H-8 6.83 H-3 5.06 H-1 4.17 H-1 6.49 H-6 The HSQC Spectrum of III-C 94.8 99.6 99.9 103.8 104.2 105.5 112.2 113.2 118.9 7.60 6 7.47 2 7.15 5 6.83 3 6.82 8 6.49 6 5.06 1 4.17 1 The HSQC Spectrum of III-C *