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Glycosides (21):
Recent article
Glycosides
Xenobiotica (41)5 2011
Abstract
This chapter reports an overview of the recent advances in the analysis of neutral sugars by capillary electrophoresis (CE); furthermore, some relevant reviews and research articles in the field are tabulated. Comparison of CE with chromatography is also presented, with special attention to separati...
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PMID: 18392573
PDF is available here.
PDF is available here.
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Abstract
We describe a multi-step chromatographic strategy required to isolate three new endo-β-glucanases (denoted EG V, EG VI, and EG VII) with activity against cereal mixed-linkage β-glucans from the thermophilic fungus Talaromyces emersonii. This work also illustrates the challenges frequently involved...
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PMID: 20978986
PDF is available here.
PDF is available here.
Abstract
Phytochemical reinvestigation on the whole plants of Ypsilandra thibetica obtained five new spirostane glycosides, ypsilandrosides H-L (1-5), and a known saponin polyphylloside III (6). Among them, 1 and 2 are the first spirostane glycosides which possess novel 5(6-->7) abeo-steroidal aglycones. Com...
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PMID: 20558188
PDF is available here.
PDF is available here.
Abstract
Novel glycosidic compounds, 4,6-dialkoxy-1,3,5-triazin-2-yl β-lactosides (DAT-β-Lac), have been prepared directly in water from lactose. The reaction was carried out on a laboratory scale without protecting the hydroxy groups of lactose. The resulting triazine derivatives were found to be recogniz...
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PMID: 20835455
PDF is available here.
PDF is available here.
Abstract
Two new compounds 1 and 2 have been isolated from the aerial parts of Urena lobata L. The structures of the two new compounds were established as ceplignan-4-O-β-d-glucoside (1) and 2,5-dihydroxy benzoic acid-7-(2,6-dimethyl-6-hydroxy-2,7-octadienoic acid) anhydride-5-O-β-d-apiofuranosyl(1 → 2...
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PMID: 21061218
PDF is available here.
PDF is available here.
Abstract
Two new lignan glycosides, 2'-hydroxyl asarinin 2'-O-β-D-glucopyranoside (cuscutoside C, 1) and 2'-hydroxyl asarinin 2'-O-β-D-apiofuranosyl-(1 → 2)-[β-D-glucopyranosyl-(1 → 6)]-β-D-glucopyranoside (cuscutoside D, 2), were isolated from the seeds of Cuscuta chinensis Lam., along with six...
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PMID: 21061214
PDF is available here.
PDF is available here.
Molecular BioSystems (6)10 2010
Abstract
We show that several click-xylosides markedly inhibit the invasive capability of a highly invasive glioma cell line in vitro. These novel xylosides are promising chemical biology tools to probe the role of the proteoglycan glycome in regulating tumor biology....
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PMID: 20672151
PDF is available here.
PDF is available here.
Abstract
Two new cycloartane glycosides were isolated from the whole herbs of Camptosorus sibiricus Rupr. By means of chemical and spectroscopic methods (1D and 2D NMR, HRMS, ESI-MS), the structures were established as (24R)-3beta,7beta,24,25,30-pentahydroxycycloartane-30-O-coumaroyl-3-O-beta-D-glucopyranosy...
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PMID: 21121247
PDF is available here.
PDF is available here.
Abstract
To develop a HPLC-ELSD method for determination of ilexside II in leaves of Ilex cornuta.
The separation was performed on a Waters Syemmetry Shield RP18 column (4.6 mm x 250 mm, 5 microm) and methanol-water was used as mobile phase in gradient elution. The flow was 1.0 mL x min(-1), and the temperat...
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PMID: 21137345
PDF is available here.
PDF is available here.
Abstract
Two new dimeric xanthone O-glycosides, puniceasides A (1) and B (2), a new trimeric O-glycoside, puniceaside C (3), and two new trimeric C-glycosides, puniceasides D (4) and E (5), together with 12 known xanthones were isolated from the entire plant of Swertia punicea. The structures of 1-5 were det...
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PMID: 20677781
PDF is available here.
PDF is available here.
Anticancer Research (30)9 2010
Abstract
We observed previously that quercetin can increase the activity of the differentiation markers alkaline phosphatase and dipeptidyl peptidase in Caco-2 colon cancer cells. In the present work, we compared the effects of quercetin on cell proliferation and differentiation with the action of related fl...
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PMID: 20944146
PDF is available here.
PDF is available here.
Fitoterapia (81)6 2010
Abstract
A new glycocerebroside (1), along with one reported one (2), was isolated from the ethanol extract of Sagina japonica (Caryophyllaceae) and was fully characterized. The structures of two compounds were identified as (2S, 3S, 4R, 8E)-1-(beta-D-glucopyranosyl-3, 4-dihydroxy-2-[(R)-2'- hydroxypalmitoyl...
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PMID: 20080159
PDF is available here.
PDF is available here.
Fitoterapia (81)6 2010
Abstract
We report the complete spectroscopic assignments for 3.
Copyright (c) 2010 Elsevier B.V. All rights reserved....
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PMID: 20080158
PDF is available here.
PDF is available here.
Fitoterapia (81)6 2010
Abstract
Phytochemical investigation of Dodecadenia grandiflora leaves led to the isolation and identification of three phenolic glycosides, designated 1-[(4'-O-(E)-p-coumaroyl)-beta-D-glucopyranosyl]-oxy-2-phenol (1), 1-[(6'-O-(E)-p-coumaroyl)-beta-D-glucopyranosyl]-oxy-2-phenol (2) and 1-[O-beta-D-glucopyr...
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PMID: 20079814
PDF is available here.
PDF is available here.
Fitoterapia (81)6 2010
Abstract
Two secolignan glycoside isomers, urticaside A (1) and urticaside B (2), were isolated from the roots of Urtica triangularis Hand.-Mazz. Their structures were elucidated by means of spectral analyses including 1D, 2D NMR and HR-EI-MS.
Copyright (c) 2010 Elsevier B.V. All rights reserved.
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PMID: 20211227
PDF is available here.
PDF is available here.
Abstract
We examined the effect of alpha-oligoglucosylation of the sugar moiety of quercetin monoglucoside on its bioavailability in humans. Enzymatically modified isoquercitrin (EMIQ) was prepared by enzymatic deglycosylation and the subsequent of alpha-oligoglucosylation of quercetin 3-O-beta-rutinode (rut...
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PMID: 20638359
PDF is available here.
PDF is available here.
Abstract
Methodology toward the stereoselective 1,2-cis glycoside linkage using intramolecular aglycon delivery (IAD) has been extensively developed. In the last two decades, progress has been made using various mixed acetal linkages and a number of glycosyl donor moieties to develop novel IAD strategies, ma...
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PMID: 20585666
PDF is available here.
PDF is available here.
Abstract
We summarize current spectroscopic data describing the excited state energies and ultrafast dynamics of purified carotenoids in solution and bound in light-harvesting complexes from purple bacteria, marine algae, and green plants. Many of these complexes can be modified using mutagenesis or pigment...
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PMID: 20446691
PDF is available here.
PDF is available here.
Abstract
In the present study a method based on liquid chromatography with diode array detection (HPLC/DAD) coupled to an electrospray ionization (ESI) interface for the simultaneous determination of phenolic constituents in three aqueous preparations of the herbal medicinal drug Stachys recta. The developed...
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PMID: 20347244
PDF is available here.
PDF is available here.
Abstract
COR-D possesses significant anti-leukemic activity in U937 and HL-60 cell lines by acting on the mitochondrial apoptotic pathways. Since the necrotic body formation is low after COR-D treatment, the occurrence of inflammation in in vivo systems could be reduced, which represents a positive indicatio...
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PMID: 20033811
PDF is available here.
PDF is available here.
Abstract
Phenolic glycosides, especially the salicylates, are important secondary metabolites in the bark of willows (Salix spp.). Because of their anti-inflammatory, analgesic, and fever-reducing properties, they are of particular interest to society. Compared to the fabrication of synthetic salicylacetylic...
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PMID: 20593762
PDF is available here.
PDF is available here.
Abstract
Three new compounds were isolated from the dried bulbs of Allium macrostemon Bunge. Their structures were elucidated from their spectral data as (25R)-26-O-beta-D-glucopyranosyl-5alpha-furostane-3beta,12beta,22,26-tetraol-3-O-beta-D-glucopyranos-yl (1-->2) [beta-D-glucopyranosyl (1-->3)]-beta-D-gluc...
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PMID: 20657379
PDF is available here.
PDF is available here.
Nature Chemistry (2)7 2010
Abstract
We have prepared on-resin a biologically important glucoside containing multiple 1,2-cis-glycosidic linkages with complete anomeric control by using glycosyl donors having a participating (S)-(phenylthiomethyl)benzyl chiral auxiliary at C2. A branching point could be installed by using 9-fluorenylme...
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PMID: 20571573
PDF is available here.
PDF is available here.
Abstract
Several medicinal plants that stimulate glucose uptake in skeletal muscle cells were identified from among species used by the Cree of Eeyou Istchee of northern Quebec to treat symptoms of diabetes. This study aimed to elucidate the mechanism of action of one of these products, the b...
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PMID: 20087853
PDF is available here.
PDF is available here.
Nature Chemistry (2)7 2010
Abstract
We have prepared on-resin a biologically important glucoside containing multiple 1,2-cis-glycosidic linkages with complete anomeric control by using glycosyl donors having a participating (S)-(phenylthiomethyl)benzyl chiral auxiliary at C2. A branching point could be installed by using 9-fluorenylme...
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PMID: 20571573
PDF is available here.
PDF is available here.
Nature Chemistry (2)7 2010
Abstract
We have prepared on-resin a biologically important glucoside containing multiple 1,2-cis-glycosidic linkages with complete anomeric control by using glycosyl donors having a participating (S)-(phenylthiomethyl)benzyl chiral auxiliary at C2. A branching point could be installed by using 9-fluorenylme...
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PMID: 20571573
PDF is available here.
PDF is available here.
Nature Chemistry (2)7 2010
Abstract
We have prepared on-resin a biologically important glucoside containing multiple 1,2-cis-glycosidic linkages with complete anomeric control by using glycosyl donors having a participating (S)-(phenylthiomethyl)benzyl chiral auxiliary at C2. A branching point could be installed by using 9-fluorenylme...
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PMID: 20571573
PDF is available here.
PDF is available here.
Nature Chemistry (2)7 2010
Abstract
We have prepared on-resin a biologically important glucoside containing multiple 1,2-cis-glycosidic linkages with complete anomeric control by using glycosyl donors having a participating (S)-(phenylthiomethyl)benzyl chiral auxiliary at C2. A branching point could be installed by using 9-fluorenylme...
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PMID: 20571573
PDF is available here.
PDF is available here.
Abstract
Six new cycloartane glycosides (1-6) were isolated from the rhizomes of Curculigo orchioides. The structures of 1-6 were determined by spectroscopic analyses and the results of hydrolytic cleavage. Compounds 1-6, and their common aglycone (1a), were evaluated for cytotoxic activity against HL-60 hum...
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PMID: 20524638
PDF is available here.
PDF is available here.
Abstract
A novel dioscin-glycosidase that specifically hydrolyzes multi-glycosides such as 3-O-alpha-L-(1 --> 4)-rhamnoside, 3-O-alpha-L-(1 --> 2)-rhamnoside, 3-O-alpha-L-(1 --> 4)-arabinoside and beta-D-glucoside on diosgenin was isolated from Absidia sp.d38 strain; and it was purified and characterized. Th...
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PMID: 20622501
PDF is available here.
PDF is available here.
Abstract
Three new secoiridoid glycoside dimers named swerilactosides A-C (1-3) were isolated from Swertia mileensis. Their structures were elucidated based on extensive spectral analyses (1D and 2D NMR, MS, and IR spectroscopic means).
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PMID: 20552496
PDF is available here.
PDF is available here.
Abstract
Potentilin A (1), a rare diflavonol ester of mu-truxinic acid and a new normonoterpenoid, 2,6-dimethyl-2,3-dihydro-4-oxo-4H-pyran-2-acetic acid (2), was isolated from Potentilla anserina, together with 19 known flavonol glycosides (3-21) and 2 known monterpenoids (22,23). Their structures were eluci...
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PMID: 20552494
PDF is available here.
PDF is available here.
Abstract
Two new compounds, lysidiside S (1) and 7-O-(+)-peltogynol-beta-d-glucopyranoside (2), together with six known phenolic glycosides (3-8) were isolated from the bark of Lysidice brevicalyx Wei. The structures of these compounds were characterized by chemical and spectroscopic methods. The antioxidant...
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PMID: 20552492
PDF is available here.
PDF is available here.
Abstract
Two new steroidal glycosides characterized with 2,6-dideoxypyranoses as component sugars have been isolated from roots of Cynanchum wallichii Wight. Their structure elucidation and cytotoxic activities against HL-60 and PC-3 cells are reported.
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PMID: 20552483
PDF is available here.
PDF is available here.
Abstract
I (1), and a new terpenic glycoside, breyniaionoside E (2), together with 10 known compounds, were isolated from the aerial parts of Breynia vitis-idaea (Euphorbiaceae), a traditional Chinese medicine used for the treatment of chronic bronchitis and wounds. Their structures were elucidated on the ba...
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PMID: 20552495
PDF is available here.
PDF is available here.
Abstract
A number of N- and S-substituted uracil and thiouracil glycosides were synthesized by coupling reaction of 5,6-dibenzyle pyrimidine derivatives with the corresponding acetobromosugar. The synthesized compounds were tested for their antiviral activity against hepatitis B virus. Plaque reduction infec...
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PMID: 20607483
PDF is available here.
PDF is available here.
Abstract
Five compounds, styraxjaponoside A (1), matairesinoside (2), egonol glucoside (3), dihydrodehydrodiconiferyl alcohol 9'-O-glucoside (4), and styraxjaponoside B (5) were isolated from the stem bark of Styrax japonica. Among them, compounds 1 and 5 showed significantly high virus-cell fusion inhibitor...
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PMID: 20607490
PDF is available here.
PDF is available here.
Phytochemistry (71)8-9 2010
Abstract
In East African small-holder farming of maize, the cattle forage legume, Desmodium uncinatum is used as an intercrop due to its allelopathic inhibition of parasitism by Striga hermonthica, an obligate parasitic weed that can devastate the maize crop. Bioassay-guided fractionation of the root extract...
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PMID: 20211477
PDF is available here.
PDF is available here.
Phytochemistry (71)8-9 2010
Abstract
Six cycloartane-type triterpene glycosides were isolated from Astragalus icmadophilus along with two known cycloartane-type glycosides, five known oleanane-type triterpene glycosides and one known flavonol glycoside. The structures of the six compounds were established as 3-O-[alpha-L-arabinopyranos...
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PMID: 20231024
PDF is available here.
PDF is available here.
Cancer Letters (293)2 2010
Abstract
We analysed the effect of the natural occurring fusicoccanes, Fusicoccin-A (FC), Ophiobolin-A (OPH-A) and Ophiobolin-I (OPH-I) on various tumor cell lines. Both FC and OPH-A inhibit tumor cell growth efficiently, in contrast to OPH-I. Further analysis showed that FC is tumor specific, and that its e...
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PMID: 20153922
PDF is available here.
PDF is available here.
Carbohydrate Research (345)7 2010
Abstract
The use of pentenyl and thiophenyl glycosides of N-acetylglucosamine (GlcNAc) as glycosyl donors for the direct preparation of O-glycosides of GlcNAc promoted by N-iodosuccinimide (NIS) and metal triflates in dichloromethane has been investigated. Both glycosyl acceptors 1-octanol and (-)-menthol re...
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PMID: 20304386
PDF is available here.
PDF is available here.
Carbohydrate Research (345)7 2010
Abstract
Treatment of peracetylated alkyl and aryl 1,2-trans-glycosides with iodine in the presence of HMDS has been found to result in the anomerization leading to the formation of the respective 1,2-cis-glycosides. In the case of alkyl glycosides with aglycons of short alkyl chain length complete anomeriza...
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PMID: 20304387
PDF is available here.
PDF is available here.
Abstract
I (TOP1) and II (TOP2) of 74 plant-originated triterpenoids and triterpenoid glycosides were investigated. The cytotoxic compounds are primarily polyhydroxylated oleananes (GI(50) of A549: 1.0-10.19 microM). Sixteen cytotoxic aesculiosides isolated from Aesculus pavia inhibited TOP1 catalytic activi...
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PMID: 20371180
PDF is available here.
PDF is available here.
Abstract
Phytochemical analysis of active fraction showed the presence of flavonoids, glycosides and phenols. Biological testing of the active fraction demonstrated a significant antidiabetic activity by reducing the elevated blood glucose levels and glycosylated hemoglobin, improving hyperlipidemia and rest...
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PMID: 20178824
PDF is available here.
PDF is available here.
Neurochemical Research (35)5 2010
Abstract
The capacity of cornel iridoid glycoside (CIG) to suppress the manifestations of ischemic stroke was investigated. CIG was administered to rats by the intragastric route once daily for 7 days. Focal cerebral ischemia was induced by 2 h of middle cerebral artery occlusion followed by 24 h of reperfus...
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PMID: 20155318
PDF is available here.
PDF is available here.
YAKUGAKU ZASSHI (130)5 2010
Abstract
We have isolated triterpene glycosides from a Leguminosae plant, which improved liver disorder, and steroid glycosides from a plant of the Solanaceous with cytotoxic activity against human cancer cell lines. A biological activity test suggested an important role of the aglycone part and the sugar ch...
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PMID: 20460864
PDF is available here.
PDF is available here.
Bioconjugate Chemistry (21)4 2010
Abstract
Oligodeoxyribonucleotide glycoconjugates bearing two trivalent glycoclusters have been synthesized by two alternative methods based on solid-supported oximation of aminooxy functionalized oligonucleotides with glycoclusters constructed by click chemistry. In more detail, the trivalent glycoclusters...
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PMID: 20225822
PDF is available here.
PDF is available here.
Abstract
We may conclude that C. cyminum is a potent immunomodulator and may develop as a lead to recover the immunity of immuno-compromised individuals.
Copyright 2010 Elsevier Ireland Ltd. All rights reserved....
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PMID: 20156427
PDF is available here.
PDF is available here.
Chemical Communications (46)14 2010
Abstract
We describe multivalent biorecognition of adsorbed lectin layers by biomimetic sensing nanoplatforms based on dynamic glycovesicles in a continuous flow QCM setup.
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PMID: 20379552
PDF is available here.
PDF is available here.
Abstract
PMS incubation attenuated A/R-induced injury in a concentration-dependent manner, as evidenced by a decrease in LDH activity and an increase in cell viability. PMS exerted its protective effect by inhibiting the A/R-mediated elevation of MDA content, as well as by promoting the recovery of SOD and G...
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PMID: 20228828
PDF is available here.
PDF is available here.
Abstract
OBJECTIVE: To investigate chemical constituents from an ethanolic extract of the branch of Fraxinus sieboldiana (Oleaceaue) METHOD: The constituents were isolated and purified by a combination of various chromatographic techniques including silica gel, macroporous adsorbent resin, Sephadex LH-20, an...
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PMID: 20617678
PDF is available here.
PDF is available here.
Abstract
We exposed the herbaceous annual Impatiens pallida, which is native to North America, to fractionated A. petiolata extracts at four developmental stages (germination, presymbiosis growth, symbiosis formation, and symbiosis growth) by using exposure levels expected to be similar to field levels. Surp...
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PMID: 20229215
PDF is available here.
PDF is available here.
Abstract
The purification of the MeOH extract from the rhizome of Sparganium stoloniferum Buch.-Hamil. (Sparganiaceae) using column chromatography furnished one new phenylpropanoid glycoside (7) and known phenolic compounds (1-6, and 8-13). The structural elucidation of 7 was based on 1D- and 2D-NMR spectros...
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PMID: 20422359
PDF is available here.
PDF is available here.
Fitoterapia (81)3 2010
Abstract
Oxidative modification of LDL plays an important role in the genesis of arteriosclerosis. This study focused on the effects of the leaves of Baeckea frutescens in the prevention of arteriosclerosis. The leaves of B. frutescens have afforded, besides known flavonoid and chromone glycosides, a novel b...
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PMID: 19699785
PDF is available here.
PDF is available here.
Fitoterapia (81)3 2010
Abstract
We investigated the antinociceptive and anti-inflammatory activities of iridoid glycosides extract of L. rotata (IGLR) in mice. Our results showed that the iridoid glycosides extract could decrease acetic-acid-induced writhings times and formalin-induced lickings times, inhibit carrageenan-induced h...
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PMID: 19698769
PDF is available here.
PDF is available here.
Fitoterapia (81)3 2010
Abstract
Two new phenolic glycosides (1, 2), along with fourteen known compounds (3-16) have been isolated from the fruit of Cupressus sempervirens. The structures of these compounds were determined by spectroscopic analysis and were evaluated for their inhibitory activity against glycogen phosphorylase and...
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PMID: 19686818
PDF is available here.
PDF is available here.
Abstract
Column chromatographic isolation of the MeOH extract of the seeds of Amomum xanthioides afforded a new diterpene glycoside, amoxanthoside A (1), two new monoterpene glycosides, (1 S,4 S,5 S)-5- EXO-hydroxycamphor 5-O-beta-D-glucopyranoside (2) and (1 R,4 R,5 S)-5-ENDO-hydroxycamphor 5-O-beta-D-gluco...
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PMID: 19830656
PDF is available here.
PDF is available here.
Abstract
In the present work, a fast and simple method for the separation and purification of triterpene saponins from Actaea racemosa was successfully established. Accelerated solvent extraction was used for defatting and extracting of the subaerial parts, giving a triterpene enriched crude extract. Size ex...
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PMID: 19847744
PDF is available here.
PDF is available here.
Abstract
Synthesis of glycosyl derivatives of hydroxyanthraquinones (6-10) potentially useful for kidney stone therapy is presented. These compounds were analyzed as inhibitors of calcium oxalate crystals formation as well as substances with the ability of dissolving crystalline calcium oxalate. In addition,...
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PMID: 20005021
PDF is available here.
PDF is available here.
Abstract
OBJECTIVE: To study the chemical constituents from n-BuOH fraction of the stems of Periploca forrestii. METHOD: The compounds were separated and purified by various chromatographic techniques and recrystallisation. The physico-chemical properties and spectral data were applied to identify structure...
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PMID: 20506822
PDF is available here.
PDF is available here.