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1.
Three new monoterpene glucosides, lamiuamplexosides A–C ( 1 – 3 ), along with thirteen known glucosides, were isolated from the whole plant of Lamium amplexicaule L. The structures of 1 – 3 were elucidated on the basis of spectroscopic, chemical, and physicochemical evidence. 相似文献
2.
Bakhat Ali Rashad Mehmood Uzma Rasheed Mughal Abdul Malik Muhammad Safder Riaz Hussain Muhammad Imran Rasool Bakhsh Tareen 《Helvetica chimica acta》2012,95(4):586-593
Eremosides A–C ( 1 – 3 ), three new iridoid glucosides, were isolated from the AcOEt‐soluble fraction of the EtOH extract of the whole plant of Eremostachys loasifolia, along with buddlejoside B ( 4 ), 10‐O‐benzoylcatalpol ( 5 ), and pakiside A ( 6 ) reported for the first time from this species. The structures of these compounds were elucidated by spectroscopic data including 2D‐NMR, FAB‐MS, ESI‐MS, as well as by acid and basic hydrolyses. 相似文献
3.
Ren‐Qiang Mei Qing Lu Yan‐Fen Hu Hai‐Yang Liu Fu‐Kai Bao Yu Zhang Yong‐Xian Cheng 《Helvetica chimica acta》2008,91(1):90-96
Three new linear C14 polyyne (=polyacetylene) glucosides, cordifolioidynes A–C ( 1 – 3 ), together with two known polyynes, lobetyol ( 4 ) and lobetyolin ( 5 ), and five known phenylpropanoids, i.e., sinapinaldehyde ( 6 ), coniferaldehyde ( 7 ), coniferoside ( 8 ), sachaliside ( 9 ), and isoconiferin ( 10 ), were isolated from the roots of Codonopsis cordifolioidea. The structures of 1 – 3 were established from spectral evidences and by characterization of their hydrolysis products. Acid hydrolysis of 1 afforded the aglycone 1a , while hydrolysis of 2 and 3 gave the cyclization products 2a and 3a , respectively. Compounds 4 – 10 were isolated from this plant for the first time. The antibacterial activity of compounds 1 – 5 were assessed against eight microbial strains by the agar dilution method, none of them exhibited antibacterial effects at concentrations up to 100 μg/ml. 相似文献
4.
Ai‐Xue Zuo Yong Shen Zhi‐Yong Jiang Xue‐Mei Zhang Jun Zhou Jun Lü Ji‐Jun Chen 《Helvetica chimica acta》2010,93(3):504-510
Three new phenolic glucosides named orcinosides A, B, and C ( 1, 2 , and 3 , resp.) were isolated in low yields (4.0×10−6, 11.5×10−6, 4.5×10−6%, resp.) from the rhizomes of Curculigo orchioides. Their structures were elucidated by comprehensive spectroscopic analyses including FAB‐MS, HR‐ESI‐MS, IR, and 1D‐ and 2D‐NMR (HSQC, HMBC) data. Compounds 1 – 3 contained two orcinol‐glucoside moieties linked through a CH2 group. 相似文献
5.
Zheng‐Ren Xu Xing‐Yun Chai Chang‐Cai Bai Hong‐Yan Ren Ya‐Nan Lu Hai‐Ming Shi Peng‐Fei Tu 《Helvetica chimica acta》2008,91(7):1346-1354
Seven new phenolic glucosides, xylocosides A–G ( 1 – 7 ), together with 18 known compounds were isolated from the stems of Xylosma controversum Clos . In compounds 3 – 6 , the glucose residue is esterified at C(6) by 2‐hydroxycyclopentanecarboxylic acid. These new structures were established by spectroscopic‐data interpretation and chemical methods. 相似文献
6.
Caragisides A–C ( 1 – 3 , resp.), three new isoflavone glucosides, were isolated from the BuOH sub‐fraction of the EtOH extract of the whole plant of Caragana conferta, along with ononoside ( 4 ), reported for the first time from this species. The structures of the new compounds were elucidated by spectroscopic techniques including MS and 2D‐NMR spectroscopy. Compounds 1 – 3 showed significant inhibition of platelet aggregation. 相似文献
7.
Colocynthins A–C ( 1 – 3 , resp.), new pentacyclic cucurbitane type triterpene glucosides, have been isolated from the AcOEt‐soluble fraction of the fruits of Citrullus colocynthis, along with three known compounds, β‐sitosterol 3‐O‐β‐D ‐glucopyranoside, elaterinide, and bryoamaride. Their structures were determined on the basis of 1H‐ and 13C‐NMR spectra, DEPT, and COSY, NOESY, HMQC, and HMBC experiments. 相似文献
8.
Guangyin Wang Junzeng Zhang Marianna Kulka Fujiang Guo Yiming Li 《Helvetica chimica acta》2014,97(7):985-991
Three new eremophilane glucosides, namely, petasitosides A–C, and seven known eremophilane‐type sesquiterpenoids were isolated from the roots of Petasites japonicus. Their structures were elucidated by spectroscopic techniques including 1D‐ and 2D‐NMR spectroscopy and mass spectrometry. This is the first report on eremophilane glycosides from the genus Petasites. 相似文献
9.
Masafumi Kikuchi Rie Kakuda Yasunori Yaoita Masao Kikuchi 《Helvetica chimica acta》2008,91(7):1236-1243
Four new secoiridoid glucosides, swertiajaposides C–F ( 1 – 4 , resp.), were isolated from the whole plant of Swertia japonica Makino together with two known compounds, 8‐hydroxy‐10‐hydrosweroside ( 5 ) and senburiside IV ( 6 ). The structures of 1 – 4 were elucidated on the basis of spectroscopic, chemical, and physicochemical evidence. 相似文献
10.
Juan Li Hang Chang Wenyu Zhao Huifang Pi Hanli Ruan Peng Zhang 《Helvetica chimica acta》2014,97(5):689-693
Two new amide alkaloids, vaginatunine A and B ( 1 and 2 , resp.), and a new C18‐diterpenoid alkaloid vaginatunine C ( 3 ), together with four known alkaloids, were isolated from the tubers of Aconitum vaginatum. Their structures were determined by means of spectroscopic analyses and comparison of the data with those reported previously. 相似文献
11.
Cao‐Mao Xiao Jing Huang Xue‐Mei Zhong Xiao‐Yan Tan Peng‐Chi Deng 《Helvetica chimica acta》2009,92(12):2587-2595
Two new homo‐aro‐cholestane glycosides and a new cholestane glycoside, along with three known saponins, were isolated from the 95% EtOH extract of the roots and rhizomes of Paris polyphylla var. pseudothibetica. The structures of the new compounds were elucidated as 3β‐O‐{α‐L ‐rhamnopyranosyl‐(1→4)‐α‐L ‐rhamnopyranosyl‐(1→4)‐[α‐L ‐rhamnopyranosyl‐(1→2)]}‐β‐D ‐glucopyranosylhomo‐aro‐cholest‐5‐ene‐26‐O‐β‐D ‐glucopyranoside (parispseudoside A, 1 ), 3β‐O‐α‐L ‐rhamnopyranosyl‐(1→2)‐β‐D ‐glucopyranosylhomo‐aro‐cholest‐5‐ene‐26‐O‐β‐D ‐glucopyranoside (parispseudoside B, 2 ), and (25R)‐3β‐O‐{α‐L ‐rhamnopyranosyl‐(1→4)‐α‐L ‐rhamnopyranosyl‐(1→4)‐[α‐L ‐rhamnopyranosyl‐(1→2)]}‐β‐D ‐glucopyranosyl‐cholesta‐5,17(20)‐diene‐16,22‐dione‐26‐O‐β‐D ‐glucopyranoside (parispseudoside C, 3 ) by spectroscopic methods, including 1D‐ and 2D‐NMR, and MS experiments, as well as chemical evidences. 相似文献
12.
Guo‐Fang Lai Xian‐You Wang Yi‐Fen Wang Jian‐Xin Cao Shi‐De Luo Peng Ju 《Helvetica chimica acta》2009,92(3):470-480
13.
Chia‐Ching Liaw Yao‐Haur Kuo Tsong‐Long Hwang Ya‐Ching Shen 《Helvetica chimica acta》2008,91(11):2115-2121
Phytochemical investigation of Eupatorium chinense var. tozanense has resulted in the isolation of three new germacranolides, designated as eupatozansins A–C ( 1 – 3 ), along with five known compounds, (5S,6R,7R,8R)‐8‐angeloyloxy‐2‐oxoguaia‐1(10),3,11(13)‐trien‐12,6‐olide ( 4 ), costunolide ( 5 ), leptocarpin ( 6 ), 2α‐hydroxyeupatolide 8‐O‐angelate ( 7 ), and quercetin ( 8 ). The structures of the new compounds were identified by 1D and 2D NMR experiments, as well as high‐resolution mass spectrometry. The in vitro cytotoxic activities of compounds 1 – 8 were evaluated. 相似文献
14.
Li‐Qin Wang You‐Xing Zhao Jiang Miao Hu Ai‐Qun Jia Jun Zhou 《Helvetica chimica acta》2008,91(1):159-164
Three new stilbene derivatives, gnetumelin A ( 1 ), gnetumelin B ( 2 ), and gnetumelin C ( 3 ), along with the nine known stilbene derivatives 4 – 12 were isolated from Gnetum montanum Markgr . f. megalocarpum Markgr. Their structures were determined by spectroscopic analysis and comparison of the data with reported ones. 相似文献
15.
Qiu‐Fen Hu Xue‐Sen Li Hai‐Tao Huang Huai‐Xue Mu Pen‐Fei Tu Gan‐Peng Li 《Helvetica chimica acta》2012,95(2):349-352
Three new benzofuranylpropanoids, lanceolunes A–C ( 1 – 3 ), were isolated from the roots of Codonopsis lanceolata. Their structures were determined by means of HR‐ESI‐MS, extensive 1D‐ and 2D‐NMR spectroscopic, and chemical evidence. 相似文献
16.
Ya‐Na Shi Yi‐Ping Zhou Chun‐Lin Long Ma‐Lin Li Yue‐Hu Wang Xing‐Yu Li Rong Guo Hong‐Sheng Wang 《Helvetica chimica acta》2009,92(8):1545-1549
The phytochemical investigation of Dipteronia dyeriana (Aceraceae) resulted in the isolation and identification of three new cycloheximide derivatives: dipteronines A–C ( 1 – 3 ). Their structures were elucidated based on the 1D‐ and 2D‐NMR spectra. Dipteronine A ( 1 ) is the first example of a 10,11‐secocycloheximide. Cytotoxic and antifungal activities of these isolates were also evaluated. 相似文献
17.
Three new glycosides with the same saccharides, namely miliusoside A ( 1 ), miliusoside B ( 2 ), and miliusoside C ( 3 ), together with five known compounds were isolated from the stems of Miliusa balansae. Their structures were elucidated on the basis of detailed spectroscopic analysis and by comparison with the spectra of related model compounds. There was a rarely encountered α‐D ‐apiose moiety occurring in all new compounds. 相似文献
18.
Xing‐Ping Zheng Qiong‐Fang Cui Jing‐Feng Zhao Li‐Juan Yang Hong‐Bin Zhang Xiao‐Dong Yang Liang Li 《Helvetica chimica acta》2014,97(12):1638-1643
Three new phthalides, gnaphalides A–C ( 1 – 3 , resp.), together with three known phthalides, were isolated from the aerial part of Gnaphalium adnatum. The structures of the new compounds were elucidated as 6‐(1,1‐dimethylprop‐2‐en‐1‐yl)‐5,7‐dihydroxy‐2‐benzofuran‐1(3H)‐one ( 1 ), 5‐hydroxy‐7‐[(2‐hydroxy‐3‐methylbut‐3‐en‐1‐yl)oxy]‐2‐benzofuran‐1(3H)‐one ( 2 ), and 1,3‐dihydro‐7‐[(3‐methylbut‐2‐en‐1‐yl)oxy]‐1‐oxo‐2‐benzofuran‐5‐yl β‐D ‐glucopyranoside ( 3 ) on the basis of spectral analyses. The structure of 1 was also confirmed by X‐ray crystallographic analysis. The three known phthalides, identified as 5,7‐dihydroxyisobenzofuran‐1(3H)‐one ( 4 ), anaphatol ( 5 ), and 7‐O‐(β‐glucopyranosyl)‐5‐hydroxyisobenzofuran‐1(3H)‐one ( 6 ), were isolated from the genus Gnaphalium for the first time. 相似文献
19.
Chuan‐Rui Zhang Hong‐Bing Liu Shi‐Hui Dong Yan Wu Jian‐Min Yue 《Helvetica chimica acta》2013,96(3):499-504
Three new alkaloids, macrodumines A–C ( 1 – 3 , resp.), along with ten known analogs, were isolated from the twigs and leaves of Daphniphyllum macropodum. Their structures were elucidated on the basis of spectroscopic methods. The 11‐OH configuration of the known alkaloid hydroxydaphgraciline ( 4 ) was assigned as α for the first time by comparing the NMR data with those of macrodumine C ( 3 ). 相似文献
20.
Yong Shen Hong‐Lian Ai Tuan‐Wu Cao Jian‐Jun Wang Shu‐Hui Zi Xue‐Mei Zhang Ji‐Jun Chen 《Helvetica chimica acta》2012,95(3):509-513
Three new C19‐diterpenoid alkaloids, named aconitramines A ( 1 ), B ( 2 ), and C ( 3 ), were isolated from Aconitum transsectum. By UV, IR, 1D‐ and 2D‐NMR, and MS analyses, their structures were elucidated as 18‐methoxyvilmoraconitine, 18‐demethoxydolichotine A, and 18‐demethoxydolichotine B. Compound 1 is the second known C19‐diterpenoid alkaloid with a three‐membered ring formed by C(8), C(9), and C(10). 相似文献