Triterpene glycosides ofScheffleropsis angkae. II. Structure of glycosides L-E1, L-E2, L-K1, and L-K2 |
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| Authors: | A S Stolyarenko V I Grishkovets A S Shashkov V Ya Chirva |
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| Institution: | (1) V. I. Vernadskii Tavricheskii National University, ul. Yaltinskaya, 4, 95007 Simferopol;(2) N. D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, B-335, Leninskii pr., 47, 117913 Moscow |
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| Abstract: | The structures of four triterpene glycosides from leaves ofScheffleropsis angkae (Araliaceae) are established using chemical and NMR methods. The structures 3-O- -D-glucopyranosyl-(1-3)-O- -L-arabinopyranosides of oleanic and ursolic acids and their 28-O--L-rhamnopyranosyl-(1-4)-O--gentiobiosyl ethers are proposed for L-E1, L-E2, L-K1, and L-K2, respectively. L-K1 and L-K2 are new triterpene glycosides.Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 239–241, May–June, 2000. |
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| Keywords: | Sheffleropsis angkae triterpene glycosides 3-O- -D-glucopyranosyl-(1-3)-O- gif" alt="beta" align="MIDDLE" BORDER="0">-D-glucopyranosyl-(1-3)-O- -L-arabinopyranosyl and-28-O-gif" alt="agr" align="BASELINE" BORDER="0">-L-arabinopyranosyl and-28-O--L-rhamnopyranosyl-(1-4)-O- gif" alt="agr" align="BASELINE" BORDER="0">-L-rhamnopyranosyl-(1-4)-O--gentiobiosyl ethers of oleanic and ursolic acids" target="_blank">gif" alt="beta" align="MIDDLE" BORDER="0">-gentiobiosyl ethers of oleanic and ursolic acids |
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