21甾体成分研究> 青阳参中C21甾体成分研究(7)
化合物11 白色不定型粉末;1H-NMR(pyridine-d5,500 MHz)δ:3.87(1H,m,H-3),5.27(1H,s,H-6),5.33(1H,dd,J=4.0,11.0 Hz,H-12),2.09(3H,s,H-18),1.30(3H,s,H-19),2.42(3H,s,H-21),8.30(1H,d,J=8.5 Hz,H-3′),7.23(1H,d,J=8.5,H-4′),7.23(1H,d,J=8.5 Hz,H-6′),8.30(1H,d,J=8.5 Hz,H-7′),5.48(1H,d,J=9.5 Hz,H-1″),4.64(1H,m,H-3″),3.51(1H,m,H-4″),4.30(1H,m,H-5″) ......
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