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You searched for: Publication year rev 7983-2017 Remove constraint Publication year rev: 7983-2017 Subject spectral analysis Remove constraint Subject: spectral analysis Subject term glucosides Remove constraint Subject term: glucosides
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1. 2-Carboxy-dihydrostilbene and flavan glycosides from Desmodium heterocarpon

Author:
Poolsak Sahakitpichan; Piyawadee Chadmuk; Nitirat Chimnoi; Anucha Namsa-aid; Somsak Ruchirawat; Tripetch Kanchanapoom
Source:
Phytochemistry letters 2017 v.19 pp. 94-97
ISSN:
1874-3900
Subject:
Desmodium heterocarpon; flavonoids; glucosides; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... A new 2-carboxy-dihydrostilbene glucoside, 2-carboxy-3,5,4′-trihydroxydihydrostilbene 3-O-β-d-glucopyranoside (1) and a new flavan diglycoside, (2S)-5,7,4′-trihydroxyflavan 7-O-β-d-apiofuranosyl-(1→6)-O-β-d-glucopyranoside (3) were isolated from the aerial portion of Thai origin Desmodium heterocarpon together with five known compounds, lunularic acid 4′-O-β-d-glucopyranoside (2), vitexin (4), iso ...
DOI:
10.1016/j.phytol.2016.12.011

2. Absolute configuration of resveratrol oligomer glucosides isolated from the leaves of Upuna borneensis

Author:
Tetsuro Ito; Hiromi Ito; Munekazu Iinuma
Source:
Phytochemistry letters 2017 v.20 pp. 26-31
ISSN:
1874-3900
Subject:
Dipterocarpaceae; chemical composition; glucosides; leaves; nuclear magnetic resonance spectroscopy; resveratrol; spectral analysis
Abstract:
... A comprehensive investigation of the chemical constituents of the leaves of Upuna borneensis (Dipterocarpaceae) was performed. Three new glucosides of resveratrol oligomers having a pentameric aglycone [upunoside E (1)] and dimeric aglycones [upunosides F (3) and G (4)], as well as 14 resveratrol derivatives (2, 5–17), were isolated. The absolute configurations of the new compounds were elucidated ...
DOI:
10.1016/j.phytol.2017.03.006

3. Anti-inflammatory and Antiosteoporosis Flavonoids from the Rhizomes of Helminthostachys zeylanica

Author:
Huang Yu-Ling; Shen Chien-Chang; Shen Yuh-Chiang; Chiou Wen-Fei; Chen Chien-Chih
Source:
Journal of natural products 2017 v.80 no.2 pp. 246-253
ISSN:
1520-6025
Subject:
Helminthostachys zeylanica; acid hydrolysis; anti-inflammatory activity; glucosides; inhibitory concentration 50; nitric oxide; osteoclasts; quercetin; rhizomes; spectral analysis; sugars
Abstract:
... Chemical investigation of the rhizomes of Helminthostachys zeylanica led to the isolation of eight new flavonoids including six cyclized geranylflavonoids, ugonins V–X (1–3), (10R,11S)-ugonin N (4), (10R,11S)-ugonin S (5), and ugonin Y (6), as well as two quercetin glucosides, quercetin-4′-O-β-d-glucopyranosyl-(1→2)-β-d-glucopyranoside (7) and quercetin-3-O-β-d-glucopyranosyl-4′-O-β-d-glucopyranos ...
DOI:
10.1021/acs.jnatprod.5b01164

4. Antioxidant and cytotoxic lignans from the roots of Bupleurum chinense

Author:
Dan-Qi Li; Di Wang; Le Zhou; Ling-Zhi Li; Qing-Bo Liu; Ying-Ying Wu; Jing-Yu Yang; Shao-Jiang Song; Chun-Fu Wu
Source:
Journal of Asian natural products research 2017 v.19 no.5 pp. 519-527
ISSN:
1477-2213
Subject:
2,2-diphenyl-1-picrylhydrazyl; Bupleurum chinense; antioxidant activity; bioactive compounds; cytotoxicity; ethanol; fluorouracil; free radical scavengers; glucosides; inhibitory concentration 50; lignans; neoplasm cells; nuclear magnetic resonance spectroscopy; roots; spectral analysis
Abstract:
... In the search for biologically active compounds from the roots of Bupleurum chinense D C., phytochemical investigation of its ethanol extract led to the isolation and identification of a new 8- O -4′ neolignan glucoside, saikolignanoside A (1), along with eight known lignans (2–9). Their structures were determined on the basis of IR, UV, HRESIMS, and NMR spectroscopic analyses. The antioxidant and ...
DOI:
10.1080/10286020.2016.1234456

5. Antiprotozoal activity of major constituents from the bioactive fraction of Verbesina encelioides

Author:
Shahira M Ezzat; Maha M Salama; Engy A Mahrous; Louis Maes; Cheol-Ho Pan; Essam Abdel-Sattar
Source:
Natural product research 2017 v.31 no.6 pp. 676-680
ISSN:
1478-6427
Subject:
Leishmania infantum; Plasmodium falciparum; Trypanosoma brucei; Trypanosoma cruzi; Verbesina encelioides; cytotoxicity; glucosides; in vitro studies; metabolites; petroleum; spectral analysis
Abstract:
... The bioactive petroleum ether fraction of Verbesina encelioides , previously studied by the authors, was chosen for the isolation of antiprotozoal metabolites. Pseudotaraxasterol-3β-acetate (1), benzyl 2,6-dimethoxy benzoate (2), 16β-hydroxy-pseudotaraxasterol-3β-palmitate (3) and pseudotaraxasterol (4), in addition to β -sitosterol glucoside (5) and β -sitosterol galactoside (6) were isolated and ...
DOI:
10.1080/14786419.2016.1180604

6. Apocynin derivatives from Iris tectorum

Author:
Chun-Lei Zhang; Guo-Ru Shi; Yan-Fei Liu; Yan Wang; Ruo-Yun Chen; De-Quan Yu
Source:
Journal of Asian natural products research 2017 v.19 no.2 pp. 128-133
ISSN:
1477-2213
Subject:
Iris (Iridaceae); chemical derivatives; chemical structure; glucosides; rhizomes; spectral analysis
Abstract:
... Phytochemical investigation of the rhizomes of Iris tectorum resulted in the isolation and characterization of three new apocynin derivatives, apocynin-4-O- β -D-(6′-O-syringyl)glucopyranoside (1), scrophenoside C-7-ethyl ether (2 , 3), together with a new naturally occurring compound but known by synthesis, apocynin-4-O- β -D-xylopyranoside (4), and five known ones (5–9). Their structures were el ...
DOI:
10.1080/10286020.2016.1268128

7. Bioactive steroids and sorbicillinoids isolated from the endophytic fungus Trichoderma sp. Xy24

Author:
Jin-Lian Zhao; Min Zhang; Ji-Mei Liu; Zhen Tan; Ri-Dao Chen; Ke-Bo Xie; Jun-Gui Dai
Source:
Journal of Asian natural products research 2017 v.19 no.10 pp. 1028-1035
ISSN:
1477-2213
Subject:
Human immunodeficiency virus 1; Trichoderma; cytotoxicity; endophytes; fungi; glucosides; human cell lines; inhibitory concentration 50; neuroglia; nitric oxide; spectral analysis; steroids; viruses
Abstract:
... A new steroid glucoside (1), along with nine known steroids (2–10) and four known sorbicillinoids (11–14), were isolated from the endophytic fungus Trichoderma sp. Xy24. Their structures were elucidated on the basis of spectroscopic data analyses and by comparison with reported data. Compounds 3 , 5–7 , 9 , 10 , and 13 exhibited significant inhibitory effects on HIV-1 virus with IC ₅₀ values rangi ...
DOI:
10.1080/10286020.2017.1285908

8. Clerodane Diterpenoid Glucosides from the Stems of Tinospora sinensis

Author:
Jiang Huan; Zhang Gui-Jie; Liu Yan-Fei; Wang Heng-Shan; Liang Dong
Source:
Journal of natural products 2017 v.80 no.4 pp. 975-982
ISSN:
1520-6025
Subject:
Tinospora sinensis; cytotoxicity; diterpenoids; ethyl acetate; glucosides; inhibitory concentration 50; nitric oxide; spectral analysis; stems
Abstract:
... Ten new clerodane diterpenoid glucosides (1–10) and three known analogues (11–13) were isolated from an EtOAc extract of the stems of Tinospora sinensis. Spectroscopic analyses and chemical methods were used to elucidate the structures of these isolates. The absolute configurations of tinosinenosides A–C (1–3) were established by using experimental and calculated ECD data. Their cytotoxicity again ...
DOI:
10.1021/acs.jnatprod.6b00976

9. Cornusides A–O, Bioactive Iridoid Glucoside Dimers from the Fruit of Cornus officinalis

Author:
Xian-Sheng Ye; Jun He; Yung-Chi Cheng; Lei Zhang; Hao-Yi Qiao; Xue-Ge Pan; Jia Zhang; Shu-Na Liu; Wei-Ku Zhang; Jie-Kun Xu
Source:
Journal of natural products 2017 v.80 no.12 pp. 3103-3111
ISSN:
1520-6025
Subject:
Cornus officinalis; chemical structure; fruits; glucosides; human cell lines; inhibitory concentration 50; iridoid glycosides; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Fifteen new and rare iridoid glucoside dimers, cornusides A–O (1–15), and 10 known iridoid glucosides (16–25) were isolated from the fruit of Cornus officinalis. These new chemical structures were established through spectroscopic analysis (UV, IR, HRESIMS, 1D and 2D NMR). Compounds 1–25 were tested for their inhibitory activities by measuring IL-6-induced STAT3 promoter activity in HepG2 cells, a ...
DOI:
10.1021/acs.jnatprod.6b01127

10. Cytotoxic Cardiac Glycoside from the Parasitic Plant Cuscuta reflexa

Author:
Muhammad Ali Versiani; Asma Kanwal; Shaheen Faizi; Ahsana Dar Farooq
Source:
Chemistry of natural compounds 2017 v.53 no.5 pp. 915-922
ISSN:
0009-3130
Subject:
Cuscuta reflexa; anticarcinogenic activity; beta-sitosterol; bioassays; chemical structure; coumarins; cytotoxicity; fractionation; glucosides; nuclear magnetic resonance spectroscopy; parasitic plants; prostatic neoplasms; spectral analysis; stable isotopes; ursolic acid
Abstract:
... Bioassay guided fractionation of the cytotoxic extract of the plant Cuscuta reflexa, employing cytotoxic assay against a panel of 60 cell lines, led to the isolation of 13 compounds identified as odoroside H (1), 21-hydroxyodoroside H (2), neritaloside (3), strospeside (4), 16-β-hydroxydigitoxin (5), N-trans and cis feruloyl tyramines (6 and 7), ethyl caffeate (8), coumarins (9 and 10), ursolic ac ...
DOI:
10.1007/s10600-017-2154-5

11. Divaccinosides A-D, four rare iridoid glucosidic truxillate esters from the leaves of Vaccinium bracteatum

Author:
Yong-Mei Ren; Chang-Qiang Ke; Chunping Tang; Sheng Yao; Yang Ye
Source:
Tetrahedron letters 2017 pp. -
ISSN:
0040-4039
Subject:
Vaccinium bracteatum; X-ray diffraction; chemical structure; cycloaddition reactions; esters; glucosides; leaves; spectral analysis
Abstract:
... Divaccinosides A-D (1-4), four rare iridoid glucoside cyclodimers in the truxillate forms, were characterized from the leaves of Vaccinium bracteatum. They were presumably biosynthesized from two known iridoid glucoside monomers, vaccinoside (5) and 10-O-trans-p-coumaroyl-6α-hydroxyl-dihydromonotropein (6), via a [2+2] cycloaddition reaction. The structures of the new compounds were established by ...
DOI:
10.1016/j.tetlet.2017.05.013

12. Enzymatic biosynthesis of novel neobavaisoflavone glucosides via Bacillus UDP-glycosyltransferase

Author:
Tao MA; Yi-Qun DAI; Nan LI; Qiang HUO; Hong-Mei LI; Yu-Xin ZHANG; Zheng-Hao PIAO; Cheng-Zhu WU
Source:
Chinese journal of natural medicines 2017 v.15 no.4 pp. 281-287
ISSN:
1875-5364
Subject:
Oriental traditional medicine; biosynthesis; cytotoxicity; glucosides; glycosylation; high performance liquid chromatography; human cell lines; humans; inhibitory concentration 50; mass spectrometry; neoplasms; nuclear magnetic resonance spectroscopy; spectral analysis; transferases; water solubility
Abstract:
... The present study was designed to perform structural modifications of of neobavaisoflavone (NBIF), using an in vitro enzymatic glycosylation reaction, in order to improve its water-solubility. Two novel glucosides of NBIF were obtained from an enzymatic glycosylation by UDP-glycosyltransferase. The glycosylated products were elucidated by LC-MS, HR-ESI-MS, and NMR analysis. The HPLC peaks were int ...
DOI:
10.1016/S1875-5364(17)30045-6

13. Eremophilane-type glucosides from the leaves of Ligularia calthifolia Maxim

Author:
Ludmila P. Ponomarenko; Sophia D. Ermolaeva; Roman V. Doudkin; Sergey A. Dyshlovoy; Petr G. Gorovoy
Source:
Phytochemistry letters 2017 v.21 pp. 264-268
ISSN:
1874-3900
Subject:
Ligularia; glucose; glucosides; humans; leaves; neoplasm cells; prostatic neoplasms; spectral analysis
Abstract:
... Three eremophilane-type glucosides (1–3) along with three known congeners alticolosides A, B and D (4–6) have been isolated from the leaves of Ligularia calthifolia Maxim. (Asteraceae). The structures of 1–3 have been elucidated by spectroscopic analysis as well as by chemical transformations. A distinctive feature of the compounds 1–3 is the presence of an acetyl group in the glucose residues. Th ...
DOI:
10.1016/j.phytol.2017.07.013

14. Flavanonol glucosides from the aerial parts of Agrimonia pilosa Ledeb. and their acetylcholinesterase inhibitory effects

Author:
U. Min Seo; Duc Hung Nguyen; Bing Tian Zhao; Byung Sun Min; Mi Hee Woo
Source:
Carbohydrate research 2017 pp. -
ISSN:
0008-6215
Subject:
Agrimonia; acetylcholinesterase; aerial parts; glucosides; inhibitory concentration 50; isomers; spectral analysis
Abstract:
... Two new flavanonol glucoside isomers, (2R,3S)-dihydrokaempferol 3-O-β-D-glucoside (1) and (2S,3R)-dihydrokaempferol 3-O-β-D-glucoside (2), were isolated from the aerial parts of Agrimonia pilosa Ledeb., along with eight known flavanonol glucosides (3–10). Their structures were determined on the basis of spectroscopic analysis. In addition, these compounds were evaluated to determine their acetylch ...
DOI:
10.1016/j.carres.2017.04.014

15. Four new ent-kaurene diterpene glucosides from Mikania micrantha

Author:
Li-Mei Dong; Xu-Chao Jia; Qing-Wen Luo; Yi-Ming Peng; Qiang Zhang; Bi Luo; Jian-Wen Tan
Source:
Phytochemistry letters 2017 v.20 pp. 155-159
ISSN:
1874-3900
Subject:
Gram-negative bacteria; Mikania micrantha; aerial parts; antibacterial properties; anticarcinogenic activity; chemical structure; diterpenoids; glucosides; humans; neoplasms; spectral analysis
Abstract:
... Phytochemical study on the aerial parts of Mikania micrantha led to the isolation of four new ent-kaurene diterpene glucosides, β-d-glucopyranosyl-15α-(3-hydroxy-3-methylbutanoyloxy)-9β-hydroxy-ent-16-kauren-19-oate (1), β-d-glucopyranosyl-15α-(3-methylbutanoyloxy)-9β-hydroxy-ent-16-kauren-19-oate (2), β-d-glucopyranosyl-15α-(2-methylbutanoyloxy)-9β-hydroxy-ent-16-kauren-19-oate (3), β-d-glucopyra ...
DOI:
10.1016/j.phytol.2017.04.029

16. Four new glycosides from the stems of Dendrobium fimbriatum Hook

Author:
Feng-Qing Xu; Wei-Wei Fan; Cheng-Ting Zi; Fa-Wu Dong; Dan Yang; Jun Zhou; Jiang-Miao Hu
Source:
Natural product research 2017 v.31 no.7 pp. 797-801
ISSN:
1478-6427
Subject:
Dendrobium; glucosides; spectral analysis; spectroscopy; stems
Abstract:
... Four new glucosides, named as gigantol-5- O - β - d -glucopyranoside (1), 9,10-dihydro-aphyllone A-5- O - β - d -glucopyranoside (2), ficusal-4- O - β - d -glucopyranoside (3), botrydiol-15- O - β - d -glucopyranoside (4), together with eight known compounds (5–12) were isolated from the n -BuOH extract of the stems of Dendrobium fimbriatum Hook. Their structures were elucidated by the analyses of ...
DOI:
10.1080/14786419.2016.1247076

17. Four new iridoid glucosides containing the furan ring from the fruit of Cornus officinalis

Author:
Jun He; Xian-Sheng Ye; Xiao-Xue Wang; Ya-Nan Yang; Pei-Cheng Zhang; Bing-Zhi Ma; Wei-Ku Zhang; Jie-Kun Xu
Source:
Fitoterapia 2017 pp. -
ISSN:
0367-326X
Subject:
Cornus officinalis; chemical structure; circular dichroism spectroscopy; glucosides; iridoid glycosides; neuroprotective effect; nuclear magnetic resonance spectroscopy; spectral analysis; sugars
Abstract:
... Four new and rare iridoid glucosides, cornusfuroside A–D (1–4), containing the furan ring were identified from water extract of the fruit of Cornus officinalis. These new chemical structures were determined through extensive spectroscopic analysis, including 1D and 2D NMR, IR, HRESIMS, experimental and calculated electronic circular dichroism (ECD). Notably, this study is the first report on the i ...
DOI:
10.1016/j.fitote.2017.06.003

18. Furofuran lignan glucosides from the leaves of Vitex negundo var. cannabifolia

Author:
Yue-Ting Li; Man-Man Li; Jing Sun; Zhi-Xiang Zhu; Yue-Lin Song; Dao-Ran Pang; Jiao Zheng; Yun-Fang Zhao; Peng-Fei Tu; Jun Li
Source:
Natural product research 2017 v.31 no.8 pp. 918-924
ISSN:
1478-6427
Subject:
Vitex negundo; glucosides; inhibitory concentration 50; leaves; lignans; nitric oxide; spectral analysis; spectroscopy
Abstract:
... Two new furofuran lignan glucosides, cannabilignin (1) and isocannabilignin (2), together with four known compounds (3 – 6), were isolated from the leaves of Vitex negundo var. cannabifolia . The structures of the isolates were elucidated by analysis of spectroscopic data. Compound 3 exhibited weak inhibition of nitric oxide production in lipopolysaccharide-stimulated BV-2 microglial cells with IC ...
DOI:
10.1080/14786419.2016.1255887

19. Hepatoprotective hemiterpene glycosides from the rhizome of Cibotium barometz (L.) J. Sm

Author:
Mei-Ping Xie; Lan Li; Hua Sun; An-Qi Lu; Bo Zhang; Jian-Gong Shi; Dan Zhang; Su-Juan Wang
Source:
Phytochemistry 2017 v.138 pp. 128-133
ISSN:
0031-9422
Subject:
Cibotium barometz; cytotoxicity; glucosides; hepatoprotective effect; liver; neuroprotective effect; nuclear magnetic resonance spectroscopy; rhizomes; spectral analysis
Abstract:
... Five previously undescribed hemiterpene glycosides, cibotiumbarosides E−I, and two known hemiterpene glucosides, were isolated from the rhizome of Cibotium barometz (L.) J. Sm. The structures of cibotiumbarosides E−I were established by 1D and 2D NMR spectroscopic analyses and HRMS. The absolute configuration of the aglycone of cibotiumbaroside E was assigned by calculated ECD with the TDDFT metho ...
DOI:
10.1016/j.phytochem.2017.02.023

20. Megastigmane glucosides isolated from Dichrocephala benthamii

Author:
Bo SONG; Jin-Guang SI; Meng YU; Xiao-Hui TIAN; Gang DING; Zhong-Mei ZOU
Source:
Chinese journal of natural medicines 2017 v.15 no.4 pp. 288-291
ISSN:
1875-5364
Subject:
Oriental traditional medicine; chemical composition; cytotoxicity; glucosides; hepatoma; humans; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... The present study was designed to investigate the chemical constituents of the whole herb of Dichrocephala benthamii. A new megastigmane glucoside (compound 1), together with its four known analogues (compounds 2−5), was obtained. Their structures were elucidated on the basis of spectroscopic analyses (UV, IR, MS, and 1D and 2D NMR). The absolute configuration of compound 1 was assigned on the bas ...
DOI:
10.1016/S1875-5364(17)30046-8