蜈蚣草全草石油醚部位的化学成分研究(4)
化合物Ⅶ:白色针状结晶(氯仿),分子式:C29H48O,熔点:160~162 ℃,ESI-MS:m/z 411[M-H]-,10%硫酸乙醇反应显紫红色。1H -NMR(CDCl3,500 MHz)δ:5.12(1H,dd,J=8.5,15.3 Hz,H-22),5.00(1H,dd,J=8.5,15.4 Hz,H-23),3.49(1H,t-like,H-3)。13C-NMR(CDCl3,150 MHz)δ:37.1(C-1),31.5(C-2),71.6(C-3),42.5(C-4),140.9(C-5),122.0(C-6),40.3(C-7),31.9(C-8),50.0(C-9),36.1(C-10),20.9(C-11),39.4(C-12),42.1(C-13),56.8(C-14),22.7(C-15) ......
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