Three new sesquilignans,1-3,a new sesquiterpenoid,4,and three known compounds were isolated from the stem barks of Illicium simonsii.The structures of new compounds(1-4)were elucidated by spectroscopic methods.A biosy...Three new sesquilignans,1-3,a new sesquiterpenoid,4,and three known compounds were isolated from the stem barks of Illicium simonsii.The structures of new compounds(1-4)were elucidated by spectroscopic methods.A biosynthetic pathway was proposed for simonsienols A-C(1-3).Anti-AChE activity and anti-BuChE activity were evaluated for all compounds except forα-cadinol ethyl ether(4).As a result,isodunnianol(7)exhibited anti-AChE activity with an IC50 value of 13.0μM.展开更多
A new sesquilignan, namely sinensiol A, was isolated from the plant of Selaginella sinensis （Desv.） Spring. Its structure was identified on the basis of various spectroscopic data analysis.
AIM: To investigate the chemical constituents of Selaginella sinensis(Desv.) Spring. METHODS: Chromatographic separations on Diaion HP-20, silica gel, and Sephadex LH-20 were used. The structures of the isolates were ...AIM: To investigate the chemical constituents of Selaginella sinensis(Desv.) Spring. METHODS: Chromatographic separations on Diaion HP-20, silica gel, and Sephadex LH-20 were used. The structures of the isolates were elucidated on the basis of spectroscopic analysis, as well as chemical methods. RESULTS: Eight compounds were obtained and their structures were identified as sinensioside A(1), syringaresinol-4-O-β-D-glucopyranoside(2),(+)-medioresinol-4-O-β-D-glucopyranoside(3), pinoresinol-4, 4′-di-O-β-D-glucopyranoside(4), quercetin(5), eucomic acid(6), shikimic acid(7), and 2, 3-dihydroamentoflavone(8). CONCLUSION: Compound 1 is a new dihydrobenzofuran sesquilignan glycoside from Selaginella sinensis.展开更多
基金supported by the National Natural Science Foundation(20872148).
文摘Three new sesquilignans,1-3,a new sesquiterpenoid,4,and three known compounds were isolated from the stem barks of Illicium simonsii.The structures of new compounds(1-4)were elucidated by spectroscopic methods.A biosynthetic pathway was proposed for simonsienols A-C(1-3).Anti-AChE activity and anti-BuChE activity were evaluated for all compounds except forα-cadinol ethyl ether(4).As a result,isodunnianol(7)exhibited anti-AChE activity with an IC50 value of 13.0μM.
文摘A new sesquilignan, namely sinensiol A, was isolated from the plant of Selaginella sinensis （Desv.） Spring. Its structure was identified on the basis of various spectroscopic data analysis.
基金supported by the National Key Technologies R&D Program of China(No.2013ZX09102-022)DoctoralScience Foundation of Henan University of Traditional Chinese Medicine(No.BSJJ2012-02)
文摘AIM: To investigate the chemical constituents of Selaginella sinensis(Desv.) Spring. METHODS: Chromatographic separations on Diaion HP-20, silica gel, and Sephadex LH-20 were used. The structures of the isolates were elucidated on the basis of spectroscopic analysis, as well as chemical methods. RESULTS: Eight compounds were obtained and their structures were identified as sinensioside A(1), syringaresinol-4-O-β-D-glucopyranoside(2),(+)-medioresinol-4-O-β-D-glucopyranoside(3), pinoresinol-4, 4′-di-O-β-D-glucopyranoside(4), quercetin(5), eucomic acid(6), shikimic acid(7), and 2, 3-dihydroamentoflavone(8). CONCLUSION: Compound 1 is a new dihydrobenzofuran sesquilignan glycoside from Selaginella sinensis.
