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Four new triterpenoid saponins from Conyza blinii
Su, YF1; Guo, D1; Guo, HZ1; Liu, JS1; Zheng, JH1; Koike, K1; Nikaido, T1
刊名JOURNAL OF NATURAL PRODUCTS
2001
DOI10.1021/np000310v
64期:1页:32-36
收录类别SCI ; IC
文章类型Article
WOS标题词Science & Technology
类目[WOS]Plant Sciences ; Chemistry, Medicinal ; Pharmacology & Pharmacy
研究领域[WOS]Plant Sciences ; Pharmacology & Pharmacy
英文摘要

Three new bisdesmosidic saponins named conyzasaponins A, B, and C (1-3) and one new monodesmosidic saponin, conyzasaponin G (4), were isolated from the aerial parts of Conyza blinii. Their structures were elucidated on the basis of extensive NMR (DEPT, DQF-COSY, HOHAHA, HMQC, HMBC, and NOESY) and MS studies. Compounds 1-3 share a common prosapogenin, bayogenin 3-O-beta -D-xylopyranosyl-(1-->3)-beta -D-glucopyranoside, which is identical with conyzasaponin G (4), and differ in the structures of the ester-linked sugar moieties at C-28. Conyzasaponin A (1) is the 28-O-beta -D-apiofuranosyl-(1-->3)-beta -D-xylopyranosyl-(1-->4)-alpha -L-rhamnopyranosyl-(1-->2)-alpha -L-arabinopyranosyl ester, conyzasaponin B (2), the 28-O-beta -D-apiofurano-syl-(1-->3)-beta -D-xylopyranosyl-(1-->4)-[alpha -L-arabinopyranosyl-(1-->3)]-alpha -L-rhamnopyranosyl-(1-->2)-alpha -L-arabnnopyranosyl ester, and conyzasaponin C (3), the 28-O-alpha -L-rhamnopyranosyl-(1-->3)-beta -D-xylopyranosyl-(1-->4)-[beta -D-apiofuranosyl-(1-->3)]-alpha -L-rhamnopyranosyl-(1-->2)-alpha -L-arabinopyranosyl ester of the prosapogenin, respectively.

语种英语
WOS记录号WOS:000166696400008
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/50177
专题北京大学药学院
作者单位1.Peking Univ, Sch Pharmaceut Sci, Beijing 100083, Peoples R China
2.Toho Univ, Sch Pharmaceut Sci, Chiba 2748510, Japan
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GB/T 7714
Su, YF,Guo, D,Guo, HZ,et al. Four new triterpenoid saponins from Conyza blinii[J]. JOURNAL OF NATURAL PRODUCTS,2001,64(1):32-36.
APA Su, YF.,Guo, D.,Guo, HZ.,Liu, JS.,Zheng, JH.,...&Nikaido, T.(2001).Four new triterpenoid saponins from Conyza blinii.JOURNAL OF NATURAL PRODUCTS,64(1),32-36.
MLA Su, YF,et al."Four new triterpenoid saponins from Conyza blinii".JOURNAL OF NATURAL PRODUCTS 64.1(2001):32-36.
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