Kahiricosides II-V, cycloartane glycosides from an Egyptian collection of Astragalus kahiricus.

Abstract:

:Four cycloartane-type saponins, kahiricosides II-V (1-4), were isolated from the aerial parts of Astragalus kahiricus of Egyptian origin. Their structures were established as 9beta,19-cyclolanost-24E-ene-3beta,6alpha,16beta,27-tetraol-3-O-beta-D-glucopyranoside, 9beta,19-cyclolanost-24E-ene-3beta,6alpha,16beta,27-tetraol-3-O-(2'-O-acetyl)-beta-D-glucopyranoside, 9beta,19-cyclolanost-24E-ene-3beta,6alpha,16beta,27-tetraol-3-O-(6'-O-acetyl)-beta-D-glucopyranoside, and 9beta,19-cyclolanost-24E-ene-3beta,6alpha,16beta,27-tetraol-3-O-beta-D-glucopyranosyl-27-O-beta-D-glucopyranoside based on chemical and spectral evidences. All compounds exhibited very weak cytotoxicity against the A2780 ovarian cancer cell line.

journal_name

Phytochemistry

journal_title

Phytochemistry

authors

Radwan MM,El-Sebakhy NA,Asaad AM,Toaima SM,Kingston DG

doi

10.1016/j.phytochem.2004.08.037

subject

Has Abstract

pub_date

2004-11-01 00:00:00

pages

2909-13

issue

21

eissn

0031-9422

issn

1873-3700

pii

S0031-9422(04)00418-2

journal_volume

65

pub_type

杂志文章
  • Cell-wall proteins from Sitka spruce xylem are selectively insolubilised during formation of dehydrogenation polymers of coniferyl alcohol.

    abstract::Extracts from the lignifying xylem of Sitka spruce that were enriched in cell-wall-associated glycoproteins contained peroxidase and oxidase activity and readily formed lignin-like water-insoluble dehydrogenation polymers (DHPs) from coniferyl alcohol (CA) when supplied with H2O2. During the formation of DHPs, the abu...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(01)00027-9

    authors: McDougall GJ

    更新日期:2001-05-01 00:00:00

  • Sulfur-containing constituents and one 1H-pyrrole-2-carboxylic acid derivative from pineapple [Ananas comosus (L.) Merr.] fruit.

    abstract::Two sulfur-containing compounds, (S)-2-amino-5-((R)-1-carboxy-2-((E)-3-(4-hydroxy-3-methoxyphenyl)allylthio)ethyl-amino)-5-oxopentanoic acid (1) and (S)-2-amino-5-((R)-1-(carboxymethylamino)-3-((E)-3-(4-hydroxyphenyl)allylthio)-1-oxopropan-2-ylamino)-5-oxopentanoic acid (2), and one 1H-pyrrole-2-carboxylic acid deriva...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2010.08.014

    authors: Zheng ZP,Ma J,Cheng KW,Chao J,Zhu Q,Chang RC,Zhao M,Lin ZX,Wang M

    更新日期:2010-12-01 00:00:00

  • Volatile constituents of wild and in vitro cultivated Gloeophyllum odoratum.

    abstract::The brown-rot fungus Gloeophyllum odoratum was collected from spruce stumps in southern Finland. The volatiles in the fruiting body and fungal cultures grown in malt extract and liquid medium were investigated. Chitin, chitosan and D-(+)-glucosamine at a concentration of 450 mgl-1 medium were used as elicitors. Chitos...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(00)90463-1

    authors: Kahlos K,Kiviranta JL,Hiltunen RV

    更新日期:1994-07-01 00:00:00

  • Biosynthesis of the irregular monoterpene artemisia ketone, the sesquiterpene germacrene D and other isoprenoids in Tanacetum vulgare L. (Asteraceae).

    abstract::The incorporation of [1-13C]-labeled glucose into the irregular monoterpene artemisia ketone, the regular monoterpenes camphor and beta-thujone, the sesquiterpene germacrene D, the diterpene trans-phytol and beta-sitosterol and isofucosterol has been studied in axenic cultures of Tanacetum vulgare L. (Asteraceae). Qua...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2004.08.019

    authors: Umlauf D,Zapp J,Becker H,Adam KP

    更新日期:2004-09-01 00:00:00

  • Antioxidant phenylpropanoid glycosides from the leaves of Wasabia japonica.

    abstract::From the MeOH extract of the leaves of W. japonica, seven phenylpropanoid gentiobiosides (1-7) were isolated along with eight known phenylpropanoids (8-15). Structures of 1-7 were determined based on spectroscopic data and chemical evidence. The activity of compounds 1-15 to scavenge superoxide anion radicals was inve...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2007.08.021

    authors: Hosoya T,Yun YS,Kunugi A

    更新日期:2008-02-01 00:00:00

  • Flavonoids as chemotaxonomic markers in the genus Drosera.

    abstract::The botanical classification of the huge genus Drosera remains controversial since long. In the present study, the pattern of major phenolic compounds in ten Drosera species belonging to seven different subgenera and/or sections of the genus was investigated for chemotaxonomic allocation. The composition of flavonoids...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2015.08.017

    authors: Braunberger C,Zehl M,Conrad J,Wawrosch C,Strohbach J,Beifuss U,Krenn L

    更新日期:2015-10-01 00:00:00

  • Impact of sewage sludges on Medicago truncatula symbiotic proteome.

    abstract::The effects of sewage sludges were investigated on the symbiotic interactions between the model plant Medicago truncatula and the arbuscular mycorrhizal fungus Glomus mosseae or the rhizobial bacteria Sinorhizobium meliloti. By comparison to a control sludge showing positive effects on plant growth and root symbioses,...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2004.04.037

    authors: Bestel-Corre G,Gianinazzi S,Dumas-Gaudot E

    更新日期:2004-06-01 00:00:00

  • Monoterpene and sesquiterpene synthases and the origin of terpene skeletal diversity in plants.

    abstract::The multitude of terpene carbon skeletons in plants is formed by enzymes known as terpene synthases. This review covers the monoterpene and sesquiterpene synthases presenting an up-to-date list of enzymes reported and evidence for their ability to form multiple products. The reaction mechanisms of these enzyme classes...

    journal_title:Phytochemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.phytochem.2009.07.030

    authors: Degenhardt J,Köllner TG,Gershenzon J

    更新日期:2009-10-01 00:00:00

  • Biosynthesis of the hyperforin skeleton in Hypericum calycinum cell cultures.

    abstract::Hyperforin is an important antidepressant constituent of Hypericum perforatum (St. John's wort). Cell cultures of the related species H. calycinum were found to contain the homologue adhyperforin and to a low extent hyperforin, when grown in BDS medium in the dark. Adhyperforin formation paralleled cell culture growth...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2004.11.003

    authors: Klingauf P,Beuerle T,Mellenthin A,El-Moghazy SA,Boubakir Z,Beerhues L

    更新日期:2005-01-01 00:00:00

  • The structures of antioxidant and cytotoxic agents from natural source: anthraquinones and tannins from roots of Rumex patientia.

    abstract::A new anthraquinone glycoside, emodin-6-O-beta-D-glucopyranoside, and a new simple halogenated flavan-3-ol, 6-chlorocatechin, have been isolated from the roots of Rumex patientia L. together with seven known phenolic compounds. Their structures were elucidated on the basis of spectroscopic methods. Cytotoxic effects a...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(01)00337-5

    authors: Demirezer LO,Kuruüzüm-Uz A,Bergere I,Schiewe HJ,Zeeck A

    更新日期:2001-12-01 00:00:00

  • Identification of galloylated propelargonidins and procyanidins in buckwheat grain and quantification of rutin and flavanols from homostylous hybrids originating from F. esculentumxF. homotropicum.

    abstract::The flavonoid rich grain of buckwheat (Fagopyrum esculentum Moench, Fam. Polygonaceae) is of high nutritional value. With the aim to improve its agronomic productivity, cultivars were crossed with the wild species F. homotropicum which, however, differs in its flavonoid content. The intention of this work was to deter...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2008.01.001

    authors: Olschläger C,Regos I,Zeller FJ,Treutter D

    更新日期:2008-04-01 00:00:00

  • Anti-inflammatory triterpene saponins of Pithecellobium dulce: characterization of an echinocystic acid bisdesmoside.

    abstract::A new bisdesmodic triterpenoid saponin, dulcin was isolated from the seeds of Pithecellobium dulce and was identified as 3-O-[beta-D-glucopyranosyl (1-->2)-alpha-L-arabinopyranosyl]- 28-O-[beta-D-xylopyranosyl (1-->6)-beta-D-glucopyranosyl]-echinocystic acid. The known oleanolic acid saponin PE, oleanolic acid 3-O-bet...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(00)90425-4

    authors: Sahu NP,Mahato SB

    更新日期:1994-11-01 00:00:00

  • Age and nutrient limitation enhance polyunsaturated aldehyde production in marine diatoms.

    abstract::Skeletonema marinoi produces 2,4-heptadienal, 2,4-octadienal, and 2,4,7-octatrienal, the latter only in traces. In nutrient-replete cultures, the production of potentially defensive polyunsaturated aldehydes (PUA) increases from the exponential to the stationary phase of growth from 1.2 fmol cell(-1) (+/-0.4 fmol cell...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2007.05.012

    authors: Ribalet F,Wichard T,Pohnert G,Ianora A,Miralto A,Casotti R

    更新日期:2007-08-01 00:00:00

  • Cordifolisides A, B, C: norditerpene furan glycosides from Tinospora cordifolia.

    abstract::Several glycosides were isolated, as polyacetates, from the n-BuOH fraction of the Tinospora cordifolia stems. The structures of three new norditerpene furan glycosides cordifoliside A, B and C have been established by 1D and 2D NMR spectroscopy. ...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(00)90358-3

    authors: Gangan VD,Pradhan P,Sipahimalani AT,Banerji A

    更新日期:1994-10-01 00:00:00

  • Xanthones from Hypericum roeperanum.

    abstract::Four new xanthones have been isolated from the roots of Hypericum roeperanum. Their structures have been established by a combination of spectroscopic and chemical methods as 1,6-dihydroxy-5-methoxy-4',5'-dihydro-4',4',5'-trimethylfurano- (2',3':3,4)-xanthone (5-O-methyl-2-deprenylrheediaxanthone B), 1,6-dihydroxy-5-m...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/0031-9422(96)00284-1

    authors: Rath G,Potterat O,Mavi S,Hostettmann K

    更新日期:1996-09-01 00:00:00

  • Norditerpene and diterpene alkaloids from Aconitum variegatum.

    abstract::Aerial parts of Aconitum variegatum L. from the Pyrenees furnished four norditerpene alkaloids, 16 beta-hydroxycardiopetaline, 8-ethoxysachaconitine, 14-acetylgenicunine B, N-deethyl-N-19-didehydrosachaconitine, five diterpene alkaloids 15-veratroyldictizine, 15-veratroyl-17-acetyldictizine, 15-veratroyl-17-acetyl-19-...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2005.01.019

    authors: Díaz JG,Ruiza JG,Herz W

    更新日期:2005-04-01 00:00:00

  • 5-Lipoxygenase-derived oxylipins from the red alga Rhodymenia pertusa.

    abstract::The lipid extract of the temperate red alga Rhodymenia pertusa has yielded four eicosanoid metabolites, three of which are new natural products. Using principally NMR and MS techniques, their structures were deduced as 5R,6S-dihydroxy-7(E),9(E),11(Z),14(Z)-eicosatetraenoic acid (5R,6S-diHETE), 5R*,6S*-dihydroxy-7(E),9...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(99)00445-8

    authors: Jiang ZD,Ketchum SO,Gerwick WH

    更新日期:2000-01-01 00:00:00

  • The latest hype on Hyp-O-glycosylation codes.

    abstract::Contemporary glycobiology reflects the intense interest in glycoproteins and their biological roles. Addition of saccharides by N- or O-glycosylation is precise rather than random and forms a uniquely interactive molecular surface. We designate these well conserved glycomotifs as glycomodules to emphasize their functi...

    journal_title:Phytochemistry

    pub_type: 杂志文章,评审

    doi:10.1016/s0031-9422(01)00029-2

    authors: Kieliszewski MJ

    更新日期:2001-06-01 00:00:00

  • Dammarane-type saponins from Gynostemma pentaphyllum.

    abstract::Seven dammarane glycosides, gypenosides GC1 to GC7, together with ten known compounds, gypenosides V, XIV, XLII-XLVI, gynosaponins TN-1, -2, and gymnemaside VI, were isolated from the methanol extract of the aerial parts of Gynostemma pentaphyllum. Their structures were elucidated by both analysis of 1D and 2D NMR spe...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2011.04.003

    authors: Kim JH,Han YN

    更新日期:2011-08-01 00:00:00

  • Two glycosides from the stem bark of Tetracentron sinense.

    abstract::Two glycosides, tetracentronsides A and B, were isolated from the stem bark of Tetracentron sinense Oliv., along with ten known compounds, beta-sitosterol, lupeol, betulinic acid, oleanolic acid, vanillic aldehyde, vanillic acid, maslinic acid, huazhongilexin, daucosterol and catechin. On the basis of spectral and che...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(99)00457-4

    authors: Yi JH,Zhang GL,Li BG,Chen YZ

    更新日期:2000-04-01 00:00:00

  • PTP1B inhibitory and cytotoxic C-24 epimers of Δ28-24-hydroxy stigmastane-type steroids from the brown alga Dictyopteris undulata Holmes.

    abstract::Ten stigmastane-type steroids bearing unusual Δ28-24-hydroxy side chains, dictyopterisins A-J, including three pairs of C-24 epimers, dictyopterisins B/C, F/G, and I/J, were isolated from the brown alga Dictyopteris undulata Holmes, together with two previously reported analogues, (24S)- and (24R)-saringosterol. Their...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2017.11.013

    authors: Feng MT,Wang T,Liu AH,Li J,Yao LG,Wang B,Guo YW,Mao SC

    更新日期:2018-02-01 00:00:00

  • Sesquiterpenes from Warburgia ugandensis and their antimycobacterial activity.

    abstract::The dichloromethane extract of the stem bark of Warburgia ugandensis afforded three new coloratane sesquiterpenes, namely: 6alpha,9alpha-dihydroxy-4(13),7-coloratadien-11,12-dial (1), 4(13),7-coloratadien-12,11-olide (2), and 7beta-hydroxy-4(13),8-coloratadien-11,12-olide (3), together with nine known sesquiterpenes, ...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2005.07.018

    authors: Wube AA,Bucar F,Gibbons S,Asres K

    更新日期:2005-10-01 00:00:00

  • Polyamine synthesis in plants. Purification and properties of amidinotransferase from soybean (Glycine max) axes.

    abstract::Three-day-old soybean (Glycine max) seedlings were exposed to 0.4 M sorbitol solution for 4 h to induce amidinotransferase activity, with the corresponding enzyme being purified to homogeneity by chromatographic separation on DEAE-Sephacel, Sephacryl S-300 and L-arginine Sepharose 4B. The purified enzyme used L-argini...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(02)00401-6

    authors: Lee GT,Kim WJ,Cho YD

    更新日期:2002-12-01 00:00:00

  • Cytotoxic coumarins from Calophyllum dispar.

    abstract::Six coumarins have been isolated from the fruits and the stem bark of Calophyllum dispar (Clusiaceae). The structures of these minor components were established by means of spectroscopic analysis, including extensive 2D NMR studies. Some of these coumarins exhibited a significant cytotoxic activity against KB cells. ...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(01)00285-0

    authors: Guilet D,Séraphin D,Rondeau D,Richomme P,Bruneton J

    更新日期:2001-10-01 00:00:00

  • Triterpene saponins and flavonoids in the seeds of Trifolium species.

    abstract::Seeds of 57 species of the genus Trifolium have been studied for the occurrence and concentration of soyasapogenol B glycosides and flavonoids. It was shown that all tested species contained soyasaponin I and in some species astragaloside VIII and/or 22-O-glucoside and 22-O-diglucoside of soyasaponin I were also prese...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(02)00230-3

    authors: Oleszek W,Stochmal A

    更新日期:2002-09-01 00:00:00

  • An acylated cyanidin glycoside in the red-purple flowers of x Laeliocattleya cv mini purple.

    abstract::A new acylated anthocyanin was isolated from the red-purple flowers of x Laeliocattleya cv Mini Purple as one of the major anthocyanins. The structure of this pigment was determined to be cyanidin 3-O-[6-O-(malonyl)-beta-D-glucopyranoside]-7-O-[6-O-(trans-p- coumaryl)-beta-D-glucopyranoside]-3'-O-[6-O-[trans-4-O-[6-O-...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(00)89553-9

    authors: Tatsuzawa F,Saito N,Yokoi M,Shigihara A,Honda T

    更新日期:1994-11-01 00:00:00

  • The S8 serine, C1A cysteine and A1 aspartic protease families in Arabidopsis.

    abstract::The Arabidopsis thaliana genome has over 550 protease sequences representing all five catalytic types: serine, cysteine, aspartic acid, metallo and threonine (MEROPS peptidase database, http://merops.sanger.ac.uk/), which probably reflect a wide variety of as yet unidentified functions performed by plant proteases. Re...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2003.09.005

    authors: Beers EP,Jones AM,Dickerman AW

    更新日期:2004-01-01 00:00:00

  • Converting S-limonene synthase to pinene or phellandrene synthases reveals the plasticity of the active site.

    abstract::S-limonene synthase is a model monoterpene synthase that cyclizes geranyl pyrophosphate (GPP) to form S-limonene. It is a relatively specific enzyme as the majority of its products are composed of limonene. In this study, we converted it to pinene or phellandrene synthases after introducing N345A/L423A/S454A or N345I ...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/j.phytochem.2017.02.017

    authors: Xu J,Ai Y,Wang J,Xu J,Zhang Y,Yang D

    更新日期:2017-05-01 00:00:00

  • Purification and characterization of a Ca(2+)-dependent protein kinase from sandalwood (Santalum album L.): evidence for Ca(2+)-induced conformational changes.

    abstract::An early development-specific soluble 55 kDa Ca(2+)-dependent protein kinase has been purified to homogeneity from sandalwood somatic embryos and biochemically characterized. The purified enzyme, swCDPK, resolved into a single band on 10% polyacrylamide gels, both under denaturing and non-denaturing conditions. swCDPK...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/s0031-9422(01)00231-x

    authors: Anil VS,Sankara Rao K

    更新日期:2001-09-01 00:00:00

  • Caffeic glycoside esters from Jasminum nudiflorum and some related species.

    abstract::Poliumoside, forsythoside B, echinacoside and arenarioside, caffeic glycoside esters, were isolated from several species of Oleaceae. The poliumoside/forsythoside ratio distinguishes Jasminum nudiflorum from J. mesnyi. Arenarioside and forsythoside B act in Forsythia species as good hybridization markers. ...

    journal_title:Phytochemistry

    pub_type: 杂志文章

    doi:10.1016/0031-9422(92)80032-a

    authors: Andary C,Tahrouch S,Marion C,Wylde R,Heitz A

    更新日期:1992-03-01 00:00:00