桂花的化学成分研究(3)
化合物3白色结晶(丙酮);EI-MS m/z 472[M]+·;1H-NMR(CD3OD,500 MHz) δ:5.26(1H,br s,H-12),3.63(1H,m,H-3),3.31(1H,br s,H-2),2.91(1H,dd,J=14.1,4.2 Hz,H-18),1.17(3H,s,H-27),1.03(3H,s,H-25),1.02(3H,s,H-28),0.97(3H,s,H-23),0.95(3H,s,H-29),0.84(3H,s,H-30),0.83(3H,s, H-26);13C-NMR(CD3OD ......
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