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Two New Sesquiterpenoid Glucosides from the Aerial Parts of Saussurea involucrate 被引量:3
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作者 Xlao-Ling Wang Suo-Lang Gesang +2 位作者 Wei Jiao Xun Liao li-sheng ding 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2007年第5期609-614,共6页
Two new sesqulterpenoid glucosides, namely α-hydroxycostic acid 6-β-D-glucopyranoside (compound 1) and 11 βH-11,13-dlhydrodehydrocostuslactone 8α-O-(6'-acetyl)-β-D-glucopyranoside (compound 2), along with ... Two new sesqulterpenoid glucosides, namely α-hydroxycostic acid 6-β-D-glucopyranoside (compound 1) and 11 βH-11,13-dlhydrodehydrocostuslactone 8α-O-(6'-acetyl)-β-D-glucopyranoside (compound 2), along with 11 known sesqulterpenoids (compounds 3-13) were isolated from the aerial parts of Saussurea involucrate (Kar. et Kir.) Sch.- BIp. The structures of the new sesquiterpenoid glucosides were established by one- and two-dimensional nuclear magnetic resonance and mass spectrometry analysis. 展开更多
关键词 6α-hydroxycostic acid 6-β-D-glucoside 11 βH-11 13-dihydrodehydrocostuslactone 8α-O-(6'-acetyl)- α-D-glucoside Saussureainvolucrate sesquiterpenoid glucoside.
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Panthogenins A and B,two novel norergostanol steroids from Dioscorea panthaica 被引量:3
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作者 Xiao-Qing Shan Shu-Lin Peng +3 位作者 Hai-Li Shi Xiao-Ling Wang li-sheng ding Xun Liao 《Chinese Chemical Letters》 SCIE CAS CSCD 2014年第9期1256-1258,共3页
Two novel 27-norergostanol steroids, panthogenins A (1) and B (2), possessing unusual rings E and F featuring a ketal moiety at C-25 were isolated from rhizomes ofDioscorea panthaica. Their structures and relative... Two novel 27-norergostanol steroids, panthogenins A (1) and B (2), possessing unusual rings E and F featuring a ketal moiety at C-25 were isolated from rhizomes ofDioscorea panthaica. Their structures and relative configurations were elucidated by extensive spectroscopic methods including 1D and 2D NMR techniques, and the structure of panthogenin A was further confirmed by X-ray crystallography. Both compounds showed potent in vitro insulin sensitizing activity. 展开更多
关键词 Dioscorea panthaica DIOSCOREACEAE Norergostanol steroids Structural elucidation Insulin sensitizing activity
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Two new eupodienone lignans from Gymnotheca chinensis 被引量:6
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作者 Shi-Ji Xiao Fang Chen +1 位作者 li-sheng ding Yan Zhou 《Chinese Chemical Letters》 SCIE CAS CSCD 2014年第3期463-464,共2页
Two new eupodienone lignans, named gymnothelignan T (1) and gymnothelignan U (2) were isolated from the whole plants of endemic medicinal plant of Gymnotheca chinensis (Saururaceae). The structures of the new co... Two new eupodienone lignans, named gymnothelignan T (1) and gymnothelignan U (2) were isolated from the whole plants of endemic medicinal plant of Gymnotheca chinensis (Saururaceae). The structures of the new compounds were elucidated by means of HRMS, 1D and 2D NMR. Compound I was tested for cytotoxic activity in HCT15, HCT116, A549, MCF-7 and HepG2 cells and exhibited no appreciable activity against these tested cell lines with IC50 values above 50 μmol/L. 展开更多
关键词 Gymnotheca chinensisSaururaceaeEupodienoneLignan
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Two novel 2,5-diphenyl oxazole derivatives from Gymnotheca chinensis 被引量:1
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作者 Shi-Ji Xiao Da-Le Guo +4 位作者 Mao-Sheng Zhang Shu-Ling Peng Fang Chen Yan Zhou li-sheng ding 《Chinese Chemical Letters》 SCIE CAS CSCD 2016年第7期1064-1066,共3页
Two novel 2,5-diphenyl oxazole derivatives,named gymnothecaoxazoles A(1) and B(2),were isolated from the whole parts of endemic medicinal plant of Gymnotheca chinensis(Saururaceae).The structures of the new comp... Two novel 2,5-diphenyl oxazole derivatives,named gymnothecaoxazoles A(1) and B(2),were isolated from the whole parts of endemic medicinal plant of Gymnotheca chinensis(Saururaceae).The structures of the new compounds were elucidated by extensive NMR and MS data,and the structure of compound 1was further confirmed by X-ray crystal diffraction analysis. 展开更多
关键词 Gymnotheca chinensis Saururaceae 2 5-Diphenyl oxazole ALKALOID Gymnothecaoxazole
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Two New Triterpenoid Saponins from Gymnema sylvestre 被引量:1
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作者 Xu-Min Zhu Ping Xie +3 位作者 Ying-Tong Di Shu-Lin Peng li-sheng ding Ming-Kui Wang 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2008年第5期589-592,共4页
Two new oleanane-type triterpenoid saponins, gymnemoside-W1 and W2, together with seven known compounds were isolated from the leaves of Gymnema sylvestre R. Br. By means of spectral and chemical analysis, the structu... Two new oleanane-type triterpenoid saponins, gymnemoside-W1 and W2, together with seven known compounds were isolated from the leaves of Gymnema sylvestre R. Br. By means of spectral and chemical analysis, the structures of the new compounds were elucidated as 16 β-hydroxyl olean-12-en-3-O-[β-D-glucopyranosyl (1 →6)- β-D-glucopyranosyl]-28-O-β-D-glucopyranoside(1) and 16 β,21 β,28-trihydroxyl-olean-12-ene-3-O-glucoronopyranoside (2). The EtOH/H2O extracts of this plant were shown to be able to inhibit glucose absorption in rats. 展开更多
关键词 Gymnema sylvestre gymnemoside-W1 and W2 triterpenoid Saponin.
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Selective extraction of flavonoids from Ginkgo biloba leaves using human serum albumin functionalized magnetic nanoparticles 被引量:3
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作者 Xiao-Yun Ren Ying Xue +2 位作者 Jian Liang li-sheng ding Xun Liao 《Chinese Chemical Letters》 SCIE CAS CSCD 2013年第12期1099-1102,共4页
In a novel procedure, human serum albumin timctionalized magnetic nanoparticles ( HSA-MNPS ) were used to selectively extract nine flavonoids in the extract of Ginkgo biloba leaves. The chemical structures of those ... In a novel procedure, human serum albumin timctionalized magnetic nanoparticles ( HSA-MNPS ) were used to selectively extract nine flavonoids in the extract of Ginkgo biloba leaves. The chemical structures of those flavonoids were characterized with high performance liquid chromatography coupled with mass spectrometry (HPLC-MS). The selective extraction with HSA-MNPs coupled with structural elucidation with HPLC-MS shows powerful potential for analysis of bioactive components in traditional Chinese medicines. 展开更多
关键词 Ginkgo biloba Flavonoids HSA-MNPs High performance liquid chromatography Mass spectrometry
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Two new neolignans from Gymnotheca involucrata 被引量:1
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作者 Shi-Ji Xiao Mao-Sheng Zhang +3 位作者 Da-Le Guo Fang Chen Yan Zhou li-sheng ding 《Chinese Chemical Letters》 SCIE CAS CSCD 2017年第5期1049-1051,共3页
Two new biphenyl butyl neolignan derivatives,named gymnothebutyllignans A(1) and B(2),were isolated from the whole parts of endemic medicinal plant of Gymnotheca involucrata(Saururaceae).The structures of the ne... Two new biphenyl butyl neolignan derivatives,named gymnothebutyllignans A(1) and B(2),were isolated from the whole parts of endemic medicinal plant of Gymnotheca involucrata(Saururaceae).The structures of the new compounds were elucidated by extensive NMR and MS data,and the absolutely configuration of compound 1 was confirmed by X-ray crystal diffraction analysis. 展开更多
关键词 Gymnotheca involucrata Saururaceae Neolignan Gymnothebutyllignan Absolutely configuration
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Two new cyclic diarylheptanoids from the stems of Ostryopsis nobilis
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作者 Yan-Xia Zhang Bing Xia +2 位作者 Yan Zhou li-sheng ding Shu-Lin Peng 《Chinese Chemical Letters》 SCIE CAS CSCD 2013年第6期512-514,共3页
Two new cyclic diarylheptanoids named ostryopsitrienol(1) and ostryopsitriol(2),together with six known compounds,were isolated from the stems of endemic medicinal plant of Ostryopsis nobilis (Betulaceae).The st... Two new cyclic diarylheptanoids named ostryopsitrienol(1) and ostryopsitriol(2),together with six known compounds,were isolated from the stems of endemic medicinal plant of Ostryopsis nobilis (Betulaceae).The structures of the new compounds were elucidated by means of HRMS,~1D NMR,~2D NMR and X-ray crystallography analysis. 展开更多
关键词 Ostryopsis nobilis Cyclic diarylheptanoid Ostryopsitrienol Ostryopsitriol
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