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作 者:GUO Shou-jun ZHAO Xin-hua YANG Yong-li CHENG Dong-liang
机构地区:[1]Department of Chemistry, National Laboratory of Appied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China [2]Department of Biology, Hanshan Normal University, Chaozhou 521041, P. R. China
出 处:《Chemical Research in Chinese Universities》2005年第5期531-535,共5页高等学校化学研究(英文版)
基 金:Supported by the National Natural Science Foundation of China(No.29272048).
摘 要:A diterpenoid trisaccharide, smithoside A, and a saponin, smithoside B, as well as six known compounds, apigenin, apigenin-7-O-glucoside, daucosterol, shanzhiside methyl ester, 8-acetylshanzhiside methyl ester and acteoside, were isolated from Aster smithianus. On the basis of spectral evidence and chemical analytical results, smithosides A and B were identified as pimar-1 5 ( 16 ) -β-ene-8β, 11 α-diol-3β-O-β-D-glucopyranosyl ( 1→3 ) - [ β-glucopyranosyl( 1 →2 ) ] -β-D-glucopyranoside and 2β,3β, 16β,21β,23-pentahydroxy-12-ene-28 oleanoic acid lactone-3-O-β-D- glucopyranosyl ( 1→3 ) -β-D-glucopyranoside, respectively.A diterpenoid trisaccharide, smithoside A, and a saponin, smithoside B, as well as six known compounds, apigenin, apigenin-7-O-glucoside, daucosterol, shanzhiside methyl ester, 8-acetylshanzhiside methyl ester and acteoside, were isolated from Aster smithianus. On the basis of spectral evidence and chemical analytical results, smithosides A and B were identified as pimar-1 5 ( 16 ) -β-ene-8β, 11 α-diol-3β-O-β-D-glucopyranosyl ( 1→3 ) - [ β-glucopyranosyl( 1 →2 ) ] -β-D-glucopyranoside and 2β,3β, 16β,21β,23-pentahydroxy-12-ene-28 oleanoic acid lactone-3-O-β-D- glucopyranosyl ( 1→3 ) -β-D-glucopyranoside, respectively.
关 键 词:Aster smithianus Pimarene-type diterpenoid glucoside Triterpenoid glucoside Oleanolic acid lactone
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