共查询到20条相似文献,搜索用时 15 毫秒
1.
Fan Yang Yan‐Fang Su Yan‐Ping Bi Jing Xu Zhi‐Qiang Zhu Guang‐Zhong Tu Xiu‐Mei Gao 《Helvetica chimica acta》2010,93(3):536-541
Three new kaempferol glycosides, kaempferol 3‐O‐β‐D ‐glucopyranosyl‐(1→6)‐β‐D ‐galactopyranosyl‐7‐O‐α‐L ‐rhamnopyranoside ( 1 ), kaempferol 3‐O‐β‐D ‐galactopyranosyl‐7‐O‐β‐D ‐glucopyranosyl‐(1→3)‐α‐L ‐rhamnopyranoside ( 2 ), and kaempferol 3‐O‐β‐D ‐glucopyranosyl‐(1→6)‐β‐D ‐galactopyranosyl‐7‐O‐β‐D ‐glucopyranosyl‐(1→3)‐α‐L ‐rhamnopyranoside ( 3 ), were isolated from the whole herbs of Cardamine leucantha, along with three known kaempferol glycosides, kaempferol 7‐O‐α‐L ‐rhamnopyranoside, kaempferitrin, and kaempferol 3‐O‐β‐D ‐galactopyranosyl‐7‐O‐α‐L ‐rhamnopyranoside. Their structures were elucidated on the basis of spectroscopic methods. 相似文献
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Adakarleny Sosa Carmelo Rosquete Luis Rojas Laurent Pouységu Stéphane Quideau Thomas Paululat Anne‐Claire Mitaine‐Offer Marie‐Aleth Lacaille‐Dubois 《Helvetica chimica acta》2011,94(10):1850-1859
Two new triterpenoid glycosides, together with two new ergostane glycosides, umbellatosides A–D ( 1 – 4 , resp.), have been isolated from the leaves of Hydrocotyle umbellata L. Their structures were established by 2D‐NMR spectroscopic techniques (1H,1H‐COSY, TOCSY, NOESY, HSQC, and HMBC) and mass spectrometry as 3β,22β‐dihydroxy‐3‐O‐[α‐L ‐rhamnopyranosyl‐(1→2)‐β‐D ‐glucuronopyranosyl]olean‐12‐en‐28‐oic acid 28‐O‐β‐D ‐glucopyranosyl ester ( 1 ), 3‐O‐[α‐L ‐rhamnopyranosyl‐(1→2)‐β‐D ‐glucuronopyranosyl]oleanolic acid 28‐O‐β‐D ‐glucopyranosyl ester ( 2 ), (3β,11α,26)‐ergosta‐5,24(28)‐diene‐3,11,26‐triol 3‐O‐(β‐D ‐glucopyranosyl)‐11‐O‐(α‐L ‐rhamnopyranosyl)‐26‐O‐β‐D ‐glucopyranoside ( 3 ), and (3β,11α,21,26)‐ergosta‐5,24(28)‐diene‐3,11,21,26‐tetrol 3‐O‐(β‐D ‐glucopyranosyl)‐11‐O‐(α‐L ‐rhamnopyranosyl)‐26‐O‐β‐D ‐glucopyranoside ( 4 ). 相似文献
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Two new phenolic glycosides,2-hydroxy-4-O-β-D-glucopyranosylphenylacetic acid methyl acetate(1) and 2-hydroxy-4-O-β-D-glucopyranosylphenylacetic acid(2) were isolated from the aerial parts of Andwsace umbellata.Their structures were elucidated by spectral techniques. 相似文献
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Kai‐Cheng Zhu Chun‐Hui Ma Guan Ye Ming‐Song Fan Cheng‐Gang Huang 《Helvetica chimica acta》2007,90(2):291-296
Two new secoiridoid glycosides, tripterospermumcin A ( 1 ) and B ( 2 ), were isolated from the EtOH extract of the aerial parts of Tripterospermum chinense (Migo ) H. Smith , along with three known compounds, secologanin, secologanol, and sweroside. Their structures were established on the basis of UV, IR, MS, and extensive 1D‐ and 2D‐NMR analyses, as well as by literature comparison of spectroscopic data. 相似文献
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Jing‐Quan Yuan Li Qiu Lu‐Hui Zou Qian Wei Jian‐Hua Miao Xin‐Sheng Yao 《Helvetica chimica acta》2015,98(4):482-489
Two new phenylethanoid glycosides, longissimosides A and B ( 1 and 2 , resp.), together with eight structurally related known compounds, were isolated from the EtOH extract of leaves and stems of Callicarpa longissima (Hemsl .) Merr . The structures of 1 and 2 were elucidated as 2‐(3,4‐dihydroxyphenyl)ethyl O‐(α‐L ‐rhamnopyranosyl)‐(1→3)‐O‐(2‐O‐syringoyl‐β‐D ‐xylopyranosyl)‐(1→6)‐ 4‐O‐[(E)‐caffeoyl]‐β‐D ‐glucopyranoside ( 1 ) and 2‐(3‐hydroxy‐4‐methoxyphenyl)ethyl O‐(α‐L ‐rhamnopyranosyl)‐(1→3)‐O‐(β‐D ‐apiofuranosyl)‐(1→6)‐4‐O‐[(E)‐isoferuloyl]‐β‐D ‐glucopyranoside ( 2 ) on the basis of spectroscopic data and acid hydrolysis. 相似文献
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Hua Zhang Ai‐Min Tan Feng Feng Shi‐Bao Yang An‐Yuan Zhang Xin Huang 《Helvetica chimica acta》2008,91(8):1489-1493
Two new pregnane glycosides, (3β,5α,12β,14β,17α)‐3‐(β‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl benzoate ( 1 ) and (3β,5α,12β,14β,17α)‐3‐(β‐cymaropyranosyloxy)‐8,14,17,20‐tetrahydroxypregnan‐12‐yl cinnamate ( 2 ) were isolated from the stems of Marsdenia tenacissima. The structures and relative configurations of the new compounds were elucidated by spectroscopic methods, including mass spectrometry and NMR spectroscopy. 相似文献
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A new cardenolide and two new pregnane glycosides, periplogenin 3‐[O‐β‐glucopyranosyl‐(1→4)‐β‐sarmentopyranoside] ( 1 ), (3β,20S)‐pregn‐5‐ene‐3,17,20‐triol 20‐[O‐β‐glucopyranosyl‐(1→6)‐O‐glucopyranosyl‐(1→4)‐β‐canaropyranoside] ( 2 ), and (3β,14β,17α)‐3,14,17‐trihydroxy‐21‐methoxypregn‐5‐en‐20‐one 3‐[O‐β‐oleandropyranosyl‐(1→4)‐O‐β‐cymaropyranosyl‐(1→4)‐β‐cymaropyranoside] ( 3 ), were isolated from the root barks of Periploca sepium Bge , together with seven related known compounds, periplogenin, xysmalogenin, (3β,20S)‐pregn‐5‐ene‐3,17,20‐triol, (3β,14β,17α)‐3,14,17‐trihydroxy‐21‐methoxypregn‐5‐en‐20‐one, (3β,20S)‐pregn‐5‐ene‐3,20‐diol 3‐β‐glucopyranoside 20‐β‐glucopyranoside, (3β,20S)‐pregn‐5‐ene‐3,20‐diol 3‐[O‐2‐O‐acetyl‐β‐digitalopyranosyl‐(1→4)‐β‐cymaropyranoside] 20‐[O‐β‐glucopyranosyl‐(1→6)‐O‐β‐glucopyranosyl‐(1→2)‐β‐digitalopyranoside], and (3β,20S)‐ pregn‐5‐ene‐3,20‐diol 20‐[O‐β‐glucopyranosyl‐(1→6)‐β‐glucopyranoside]. Their structures were elucidated on the basis of spectroscopic analyses. 相似文献
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Qiu‐Ping Zhang Bin‐Feng Zhang Gui‐Xin Chou Zheng‐Tao Wang 《Helvetica chimica acta》2011,94(6):1130-1138
Two new megastigmane glycosides, eleganosides A and B ( 1 and 3 , resp.), and one new iridoid glycoside, gouwenoside A ( 4 ), together with two known compounds, foliasalacioside B1 ( 2 ) and loganin ( 5 ), were isolated from the aerial parts of Gelsemium elegans (Gardn. et Champ.) Benth. (Loganiaceae). Their structures were elucidated by spectroscopic methods including 1D‐ and 2D‐NMR techniques. The absolute configuration of 1 was determined by CD spectroscopy. 相似文献
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Six new C21 steroidal glycosides 1 – 6 were isolated from the stem parts of Cynanchum bungei Decne . The structures of the new glycosides were determined on the basis of spectroscopic analysis, including 1D‐ and 2D‐NMR and HR‐ESI‐MS techniques as well as by comparison of their spectral data with those of related compounds. 相似文献
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Jun‐Jie Tan Chang‐Heng Tan Mu Li Shan‐Hao Jiang Da‐Yuan Zhu 《Helvetica chimica acta》2007,90(1):143-148
The seven new iridoid diglycosides 1 – 7 , together with eleven known iridoid and phenylpropanoid glycosides, were isolated from the 50% EtOH extract of the roots of Lamiophlomis rotata. Their structures were elucidated by chemical and spectroscopic methods. 相似文献
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An‐Yuan Zhang Xin Huang Ai‐Min Tan Shi‐Bo Yang Hua Zhang 《Helvetica chimica acta》2010,93(11):2256-2262
Three new glycosides, (3β,5α,8α,11α,12β,14β,17α,20R)‐3‐[(2,6‐dideoxy‐4‐O‐(6‐deoxy‐3‐O‐methyl‐β‐D ‐allopyranosyl)‐3‐O‐methyl‐β‐D ‐arabino‐hexopyranosyl)oxy]‐12‐O‐tigloyl‐8,20 : 11,20‐diepoxypregnane‐12,14‐diol ( 1 ), (3β,5α,8α,11α,12β,14β,17α,20R)‐3‐[(2,6‐dideoxy‐4‐O‐(6‐deoxy‐3‐O‐methyl‐β‐D ‐ allopyranosyl)‐3‐O‐methyl‐β‐D ‐arabino‐hexopyranosyl)oxy]‐12‐O‐(2‐methylbutanoyl)‐8,20 : 11,20‐diepoxypregnane‐12,14‐diol ( 2 ), and (3β,5α,11α,12β,14β,17α)‐12‐acetoxy‐3‐[(2,6‐dideoxy‐4‐O‐(6‐deoxy‐3‐O‐methyl‐β‐D ‐allopyranosyl)‐3‐O‐methyl‐β‐D ‐arabino‐hexopyranosyl)oxy]‐20‐oxo‐8,14‐epoxypregnan‐ 11‐yl isobutyrate ( 3 ) were isolated from the stems of Marsdenia tenacissima. The structures of the new compounds were elucidated by means of spectral data, including HR‐ESI‐MS, and 1D‐ and 2D‐NMR. 相似文献
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Three new iridoid glycosides, 4″‐O‐[(E)‐p‐coumaroyl]gentiobiosylgenipin ( 1 ), 6′‐O‐[(E)‐caffeoyl]deacetylasperulosidic acid methyl ester ( 2 ), and 6′‐O‐[(E)‐sinapoyl]gardoside ( 3 ), together with seven analogues, 4 – 10 , were isolated from the BuOH extract of the fruits of Gardenia jasminoides Ellis . Their structures were determined by means of spectroscopic analyses, including HR‐ESI‐MS, IR, and 1H‐ and 13C‐NMR, and 2D experiments (COSY, HSQC, and HMBC), and comparison with known related compounds. 相似文献
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Yi Lu Bai‐Bo Xie Chang‐Xiang Chen Wei Ni Yan Hua Hai‐Yang Liu 《Helvetica chimica acta》2011,94(1):92-97
Two new C22‐steroidal lactone glycosides, ypsilactosides A ( 1 ) and B ( 2 ), were isolated from the EtOH extract of the whole plant of Ypsilandra thibetica. Their structures were established as (3β,5α,16β,20S)‐3,16‐dihydroxy‐6‐oxopregnane‐20‐carboxylic acid γ‐lactone 3‐(β‐D ‐glucopyranoside) ( 1 ) and (3β,16β)‐3,16‐dihydroxypregna‐5,20‐diene‐20‐carboxylic acid γ‐lactone 3‐{O‐α‐L ‐rhamnopyranosyl‐(1→4)‐O‐α‐L ‐rhamnopyranosyl‐(1→4)‐O‐[α‐L ‐rhamnopyranosyl‐(1→2)]‐β‐D ‐glucopyranoside} ( 2 ) on the basis of extensive spectroscopic analyses and chemical degradations. 相似文献
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A New Megastigmane Glucoside and Three New Flavonoid Glycosides from Spiraea prunifolia var. simpliciflora 下载免费PDF全文
A new megastigmane glucoside, simplicifloranoside ( 1 ), and three new flavonol glycosides, prunifolianosides A–C ( 2 – 4 , resp.), were isolated from the aerial parts of Spiraea prunifolia var. simpliciflora. In addition, fifteen known compounds, including five phenolic acids, three lignans, four flavonoids, one eugenol glycoside, and two alkyl‐primeverosides, were also identified. Their structures were elucidated on the basis of detailed spectroscopic analyses and acid hydrolysis. 相似文献
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Two New Flavonoid Glycosides from Chrysanthemum morifolium 总被引:2,自引:0,他引:2
Jian ZHANG An Wei DING You Bin LI Da Wei QIAN Jin Ao DUAN Zhi Qi YIN 《中国化学快报》2006,17(8):1051-1053
The flowering heads of Chrysanthemum morifolium Ramat as an herbal tea in Chinese folklore has been widely cultivated in China. They have been found to posses antibacterial, antifungal, antiviral, antispirochetal and anti-inflammatory activities1. They ar… 相似文献