A new phenylethanoid glycoside from Isodon sculponeatus
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Abstract:
新 phenylethanoid glycoside , sculponiside ( 1 )从 Isodon sculponeatus ( Vaniot )的天线部分被孤立名声与六已知的混合物 martynoside ( 2 )一起, verbascoside ( 3 ),(+) -hydroxypinoresinol-8-O--d-glucoside ( 4 ), cedrusin ( 5 ), 7-megastigmene-3S,5R,6R,7E,9S-tetrol ( 6 )和 4-oxo--ionol--d-glucopyranoside ( 7 )。他们的化学结构从物理化学的数据并且由酸的水解作用被阐明。Keywords:
Phenylethanoid
Verbascoside
Glucoside
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有二已知的混合物的新 C21-steroidal glycoside 从 Cynanchum Stauntonii 的根被孤立。基于光谱分析,包括 MS ,( 1 ) H NMR ,( 13 )6号元素碳的化学符号 NMR ,系,( 1 ) H ( 1 ) H 舒适,( 13 )6号元素碳的化学符号( 1 ) H 舒适, HMQC 和 HMBC ,他们的化学结构作为 glaucogenin-C 3-O-α-l-cymaropyranosyl-是 determinated ( 1 → 4 ) -β-d-digitoxopyranosyl-(1 → 4 ) -β-d-canaropyranoside ( 1 ),耻辱甾醇( 2 )和 ursolic ( 3 )。
Ursolic acid
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试图调查 Selaginella sinensis (Desv ) 的成分触发的化学药品。Diaion HP-20,硅石胶化,和 Sephadex LH-20 上的方法色析法的分离被使用。isolates 的结构根据分光镜的分析,以及化学方法被阐明。结果八混合物被获得,他们的结构作为 sinensioside A ( 1 )被识别,syringaresinol-4- O -- D-glucopyranoside ( 2 ),(+) -medioresinol-4-O--D-glucopyranoside ( 3 ), pinoresinol-4 , 4-di-O--D-glucopyranoside ( 4 ),橡黄素( 5 ), eucomic 酸( 6 ), shikimic 酸( 7 ),并且 2 , 3-dihydroamentoflavone ( 8 )。结论化合物 1 是从 Selaginella sinensis 的新 dihydrobenzofuran sesquilignan glycoside。
Selaginella
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Schisandra
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ObjectiveTo 学习 Epimedium koreanum.MethodsSeparation 的化学成分通过硅石胶化和 Sephadex LH-20 列层析和 HPLC 方法被执行。化学结构被分光镜的方法包括 1D-NMR 和 2D-NMR .ResultsA 阐明新 furanflavonol glycoside (1 ) 被孤立并且 1 是的 identified.ConclusionCompound 新 furanflavonol glycoside,和它的结构作为 5,4 ′-dihydroxyfurano 被支持[2 ″ , 3 ”:7,8 ] 黄酮醇 3-O--L-rhamnoside。
Sephadex
Furan
Epimedium
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Phenylethanoid
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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-15(16)-β-ene-8β,11α-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.
Glucoside
Trisaccharide
Daucosterol
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A new neolignan glycoside, 4-O-β-D-glucopyranosyl-9-O-β-D-glucopyranosyl-(7R,8S)-dehydrodiconiferyl alcohol was isolated from the fresh roots of Angelica dahurica. The structure of the new compound was elucidated on the basis of spectral analysis.
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Natural product
Spectral Analysis
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二新 phenylpropanoid glycosides, 9-O-[6-O-acetyl--d-glucopyranosyl ]-4-hydroxycinnamic 酸(1 ) 和 8-O--d-glucopyranosyl-(R)-(+)-3,4,8-trihydroxy 甲基 phenylpropionate (2 ) 从 Sanguisorba officinalis 的根的 80% EtOH 摘录被孤立。他们的结构被分光镜的分析和化学方法描绘,包括 1D NMR, 2D NMR,和 HR-ESI-MS。1 和 2 展出了的混合物对所有克积极、克否定的细菌的中等抗菌剂活动测试了。
Phenylpropanoid
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新 C21 类固醇 glycoside, 11-O-tigloyl-12- β -O 乙酰 tenacigenin B 3-O- β -d-glucopyranosyl-(1 → 4 )- β -d-glucopyranosyl-(1 → 4 )-3-O-methyl-6-deoxy- β -d-allopyranosyl-(1 → 4 ) β - d-oleandropyranoside (1 ) ,命名 tenacissoside N 从 Marsdenia tenacissima 的茎被孤立。glycoside 的结构被 HR ESI MS 和 NMR 系列识别。
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