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C_(21)甾体皂苷inamoside E的结构解析 被引量：2

The Identification of A Glycoside With Polysaccharide
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摘要 文章以从竹灵消(Cynanchum inamoenum(Maxim.)Loes)中分离得到的一个C21甾体四糖苷in-amoside E为例,详细介绍了利用二维核磁共振技术解析多糖苷结构的过程。 The identification of glycosides with polysaccharide is very diffcult due to the overlap of the signals of the sugars in the NMR spectra. Using the 2D - NMR spectroscopic technique, the identification is easy. In this report, the identification of in- amoside E from Cynanchum inamoenum shows the method of the identification of glycosides with polysaccharide.
作者 王利勤 廖佳敏 李国梅
机构地区 云南师范大学化学化工学院
出处 《云南师范大学学报（自然科学版）》 2008年第6期44-49,共6页 Journal of Yunnan Normal University:Natural Sciences Edition
关键词 二维核磁共振技术 多糖苷 inamoside E 2D - NMR spectroscopic technique, glycosides with polysaccharide, inamoside E
分类号 O629.2 [理学—有机化学]
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  • 1[1]R.Z.Fang,G.G.Michael,S.W.Douglas,B.T.Li,Flora of China,vol.16,Science Press (Beijing),Missouri Botanical Garden Press (St.Louis),pp.217,1995.
  • 2[2]Z.X.Zhang,J.Zhou,K.Hayashi,H.Misuhashi,Chem.Pharm.Bull.33 (1985) 1507.
  • 3[3]N.Q.Zhu,M.F.Wang,C.T.Ho,Phyto.52 (1999) 1351.
  • 4[4]The partial 1H NMR(500MHz)data of 1,2 and 3(δin ppm,Jin Hz,in C5D5N)Compound 1:δ 0.85(s,3H,H-19),1.54(s,3H,H-21),6.49(s,1H,H-18),5.41 (m,1H,H-6),1.47 (d,3H,5.9 Hz,H-6' β-D-ole),3.46 (s,3H,H-3'-OMe β-D-ole),1.43 (d,3H,5.4 Hz,H-6'' β-D-digit),1.65 (d,3H,5.9 Hz,H-6'''β-D-ole),3.51 (s,3H,H-3'''-OMe β-D-ole),4.82 (d,1H,9.8 Hz,H-1' β-D-ole),5.51 (d,1H,8.8 Hz,H-1''β-D-digit),4.73 (d,1H,8.3 Hz,H-1'''β-D-ole),5.10 (d,1H 7.8 Hz,H-1''''β-D-glc); Compound 2:δ 0.84 (s,3H,H-19),1.54 (s,-3H,H-21),6.51 (s,1H,H-18),5.43 (m,1H,H-6),1.45 (overlap,3H,H-6' β-D-ole),3.55 (s,3H,H-3'-OMe β-D-ole),1.35 (d,3H,5.1 Hz,H-6''β-D-digit),1.45 (3H,overlap,H-6'''α-L-cym),3.45 (s,3H,H-3'''-OMe α-L-cym),4.85 (d,1H,10.2 Hz,H-1'β-D-ole),5.41 (d,1H,8.3 Hz,H-1'' β-D-digit),4.96 (s,1H,H-1'''α-L-cym),4.99 (d,1H,7.7 Hz,H-1''''β-D-glc),5.21 (d,1H,9.0 Hz,H-1'''''β-D-glc); Compound 3:δ 0.83 (s,3H,H-19),1.53 (s,3H,H-21),6.48 (s,1H,H-18),5.39 (m,1H,H-6),1.38 (d,3H,6 Hz,H-6'β-D-3-demethyl-),1.27 (d,3H,6 Hz,H-6'' β-D-digit),1.44 (d,3H,6.5 Hz,H-6"'α-L-cym),3.53(s,3H,H-3"'-OMe α-L-cym),4.88 (d,1H,9.4 Hz,H-1'β-D-3-demethyl-),5.28 (d,1H,9.8 Hz,H-1"β-D-digit),4.92 (s,1H,H-1"'α-L-cym),4.98(d,1H,7.7 Hz,H-1""β-D-glc),5.22 (d,1H,9.0 Hz,H-1""'β-D-glc).

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云南师范大学学报（自然科学版）
2008年 第6期

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