华北蓝盆花化学成分研究(4)
化合物7 白色粉末(甲醇),mp 258~260 ℃。ESI-MS m/z 577[M+H]+。1H-NMR(pyridine-d5,300 MHz) δ: 0.93,0.90,0.88,0.87,0.86,0.66(6×CH3), 5.34(1H,m,H-6),5.00(1H,d,J=6.9 Hz,H-1′)。13C-NMR(pyridine-d5,75 MHz)δ: 37.5(C-1),30.3(C-2),78.1(C-3),39.4(C-4),140.9(C-5),121.9(C-6),32.2(C-7),32.1(C-8) ......
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