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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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Peng‐Fei Tu Zhi‐Hong Song Hai‐Ming Shi Yong Jiang Yu‐Ying Zhao 《Helvetica chimica acta》2006,89(5):927-935
Three new analogues of the arylethyl (= phenylethanoid) glycoside echinacoside ( 5 ), namely cistantubulosides A ( 1 ), B1/B2 ( 2a / 2b ), and C1/C2 ( 3a / 3b ), and one new oligosaccharide, cistantubulose A1/A2 ( 4a / 4b ), were isolated from the stems of Cistanche tubulosa (Schenk ) R. Wight , together with five known compounds, i.e., campneoside I, campneoside II ( 6 ), echinacoside ( 5 ), tubuloside, and cistanoside F. Among the compounds isolated, 2a / 2b, 3a / 3b, 4a / 4b , campneoside I, campneoside II ( 6 ), and cistanoside F each consisted of a pair of epimers. The structures of the new compounds were elucidated on the basis of spectral data. 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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Hai‐Yang Liu Hong‐Ping He Suo Gao Chang‐Xiang Chen Yue‐Mao Shen Xiao‐Jiang Hao 《Helvetica chimica acta》2006,89(5):1017-1022
Two new diterpenoids, pedunculatic acid A (= (4R,5α,7α)‐7‐ethoxy‐9β,13β‐dioxyabiet‐8(14)‐en‐18‐oic acid; 1 ) and pedunculatic acid B (= (4S,5α,12β)‐8β,14β‐epoxy‐12‐hydroxy‐11‐oxototaran‐19‐oic acid; 2 ), together with three known sesquiterpenoids, were isolated from the Chinese medicinal herb Callicarpa pedunculata R. Brown . Their structures were elucidated by spectroscopic analyses, including 1D‐ and 2D‐NMR, and by high‐resolution mass spectrometry. 相似文献
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Zhi‐Wang Zhou Sheng Yin Xiao‐Ning Wang Cheng‐Qi Fan Hui Li Jian‐Min Yue 《Helvetica chimica acta》2007,90(5):951-956
Two new lignan glycosides, lanicepsides A and B ( 1 and 2 ), along with the eight known compounds 3 – 6 , epipinoresinol, syringin, ethyl caffeate, and 5,6,7‐trihydroxy‐4′‐methoxyflavone, including sesquiterpene lactones, lignans, and a flavone, were isolated from the ethanol extract of Saussurea laniceps. Their structures were determined by spectroscopic methods especially 1D‐ and 2D‐NMR techniques. 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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Jun Lei Yun‐Chuan Xiao Jing Huang Min Tang Peng‐Chi Deng 《Helvetica chimica acta》2009,92(7):1439-1444
Two new kaempferol glycosides, 5‐hydroxy‐2‐(4‐hydroxyphenyl)‐4‐oxo‐7‐(α‐L ‐rhamnopyranosyloxy)‐4H‐chromen‐3‐yl 2‐O‐acetyl‐3‐O‐β‐D ‐glucopyranosyl‐α‐L ‐rhamnopyranoside ( 1 ) and 5‐hydroxy‐2‐(4‐hydroxyphenyl)‐4‐oxo‐7‐(α‐L ‐rhamnopyranosyloxy)‐4H‐chromen‐3‐yl β‐D ‐glucopyranosyl‐(1→2)‐6‐O‐[(2E)‐3‐(4‐hydroxyphenyl)prop‐2‐enoyl]‐β‐D ‐glucopyranosyl‐(1→2)‐β‐D ‐glucopyranoside ( 2 ), along with ten known compounds, were isolated from the 95% EtOH extract of the whole plant of Androsace umbellata. The structures of the new glycosides were determined on the basis of detailed spectroscopic analyses, including 1D‐ and 2D‐NMR, MS, and chemical methods. 相似文献
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Two new macrocyclic glycosides, clemahexapetoside A ( 1 ) and B ( 2 ), along with the known compound clemochinenoside A ( 3 ), were isolated from the roots and rhizomes of Clematis hexapetala. Their structures were elucidated on the basis of chemical, physicochemical, and spectroscopic evidence. 相似文献
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Hasan Kırmızıbekmez Engin Celep Milena Masullo Carla Bassarello Erdem Yeşilada Sonia Piacente 《Helvetica chimica acta》2009,92(9):1845-1852
Three new phenylethyl glycosides, 3′′′′‐O‐methylmaxoside (=2‐(3,4‐dihydroxyphenyl)ethyl O‐β‐D ‐glucopyranosyl‐(1→3)‐O‐[β‐D ‐glucopyranosyl‐(1→6)]‐4‐O‐(E)‐feruloyl‐β‐D ‐glucopyranoside; 1 ), digilanatosides A (=2‐(3,4‐dihydroxyphenyl)ethyl O‐6‐O‐(E)‐sinapoyl‐β‐D ‐glucopyranosyl‐(1→3)‐4‐O‐(E)‐caffeoyl‐β‐D ‐glucopyranoside; 2 ), and digilanatoside B (=2‐(3,4‐dihydroxyphenyl)ethyl O‐6‐O‐(E)‐p‐coumaroyl‐β‐D ‐glucopyranosyl‐(1→3)‐4‐O‐(E)‐caffeoyl‐β‐D ‐glucopyranoside; 3 ) were isolated from the aerial parts of Digitalis lanata, along with two known phenylethyl glycosides, purpureaside A and maxoside, a phenylpropanoid glucose ester, 1‐O‐(E)‐feruloyl‐β‐glucopyranose, a benzoquinolethanoid glucoside, cornoside, a cardenolide, lanatoside C, a furostane‐type steroidal saponin, purpureagitoside, and a disaccharide, sucrose. Their structures were elucidated on the basis of spectroscopic evidence (1D‐ and 2D‐NMR, and HR‐MALDI‐MS). 相似文献
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The tuber of Ophiopogon japonicus Ker-Gawl. is recorded to have various functions, such as against cardiovascular diseases and anti-bacteria, and used as a potent drug to treat different diseases, especially heart diseases1. Since the first steriodal glycoside was isolated from the plant by Japanese scholars2, much attention has been paid to the studies of the chemical components of O. japonicus in recent decades. Steroidal glycosides as the major glycosides with the aglycones of ruscogenin … 相似文献
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Two New Chromone Glycosides from Selaginella uncinata 总被引:1,自引:0,他引:1
Two new chromone glycosides,5-hydroxy-2,6,8-trimethylchromon-7-O-β-D-gluco-pyranoside,named uncinoside A;5-acetoxy-2,6,8-trimethylchromone-7-O-β-D-glucopyranoside, named uncinoside B,and a known chromone compound named 8-methyl eugenitol were isolated from Selaginella uncinate. Their structures were elucidated by spectra analysis of FAB-MS,1D NMR and 2D NMR including ^1H NMR,^13C NMR,HMQC,HMBC and single-crystal X-ray diffraction techniques. 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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Jens Linnek Anne‐Claire Mitaine‐Offer Tomofumi Miyamoto Chiaki Tanaka Thomas Paululat Sibel Avunduk Özgen Alankuş‐Çalişkan Marie‐Aleth Lacaille‐Dubois 《Helvetica chimica acta》2011,94(2):230-237
Nine cycloartane‐type glycosides were isolated from three species of the genus Astragalus (Fabaceae): From the aerial parts of A. cicer L., two new saponins, cicerosides A and B ( 1 and 2 , resp.), i.e., a tetradesmosidic and tridesmosidic cycloartane‐type glycosides besides one known compound, from the roots of A. sempervirens Lam ., one known saponin, and from the roots of A. ptilodes Boiss . var. cariensis Boiss ., five known compounds. Their structures were established mainly by 600‐MHz 2D‐NMR techniques (1H,1H‐COSY, TOCSY, NOESY, HSQC, and HMBC) and mass spectroscopy. 相似文献
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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