期刊
TETRAHEDRON
卷 64, 期 7, 页码 1474-1481出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.11.041
关键词
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Six new triterpene glycosides stryphnosides A-F (1-6) were isolated from the pericarps of Stryphnodendron fissuratum (Leguminosae). The structures of 1-6 were determined on the basis of extensive spectroscopic analysis, including two-dimensional (213) NMR data, and the results of hydrolytic cleavage. The sugar moieties of 3-6 are very unique in structure having not only novel sugar sequences but also the terminal alpha-L-arabinopyranosyl unit with a C-1(4) conformation. Stryphnosides C (3)-F (6) are the first representative of naturally occurring glycosides with the C-1(4) terminal alpha-L-arabinopyranosyl group. (c) 2007 Elsevier Ltd. All fights reserved.
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