藏药甘青乌头化学成分研究(4)
化合物7 黄色无定型粉末。mp 201~202 ℃;ESI-MS m/z 901[M-H]-;1H-NMR(DMSO-d6,600 MHz)δ:6.42(1H,d,J=1.8 Hz,H-6),6.75(1H,d,J=1.8 Hz,H-8),7.53(1H,d,J=1.2 Hz,H-2′),6.82(1H,d,J=8.4 Hz,H-5′),7.72(1H,dd,J=8.4,1.8 Hz,H-6′),5.57(1H,d,J=7.8Hz,H-1″),5.06(1H,br s,H-1),4.38(1H,br s,H-1″″),5.54(1H,br s,H-1″″′),0.80(3H,d,J=8.4 Hz,H-6),1.05(3H,d,J=6.0 Hz,H-6″″),1.13(3H ......
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