桂花果实的化学成分研究(3)
化合物7白色针晶(氯仿-甲醇);EI-MS m/z 414(M+·)(100),396(59),381(44),329(51),303(60),273(40),255(40),231(21),213(41),173(23);1H-NMR(CDCl3,500 MHz)δ:5.30(1H,br d,J=5.2 Hz,H-6),3.49(1H,m,H-3),0.64(3H,s,H-18),1.01(3H,s,H-19),0.91(3H,d,J=8.1 Hz,H-21),0.83( 3H,d,J=7.5 Hz,H-26),0.81(3 H,d,J=7.5 Hz,H-27),0.84(3 H,t,J=8.1 Hz,H-29);13C-NMR(CDCl3,125 MHz)δ:37.4(t,C-1),31.6(t,C-2),71.7(d,C-3),42.3(t,C-4),140.7(s,C-5),121.6(d ......
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