黑龙骨化学成分研究(3)
化合物8 白色无定形粉末。1H,NMR(C5D5N,400 MHz) δ:5.38(1H,d,J=4.8 Hz,H,6),4.13(1H,q,J=6 Hz,H,20),1.51(3H,d,J=6 Hz,H,21),1.07(3H,s,H,19),0.80(3H,s,H,18);13C,NMR(C5D5N,100 MHz) δ:37.8(C,1),32.2(C,2),71.3(C,3),43.5(C,4),141.9(C,5),121.3(C,6),32.6(C,7),32.4(C,8),50.4(C,9),36.9(C,10),21.0(C,11),38.5(C,12),46.0(C,13),51.9(C,14),24.0(C,15),31.7(C,16),85.7(C ......
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