Triterpene saponins from Scabiosa rotata.


:Four new allose-containing triterpenoid saponosides, scabriosides A, B, C and D were isolated from the roots of Scabiosa rotata. Their structures were established as 3-O-beta-D-xylopyranosyl-28-O-[beta-D-allopyranosyl (1-->6)-beta-D-glucopyranosyl]-pomolic acid, 3-O-[alpha-L-rhamnopyranosyl (1-->2)-beta-D-xylopyranosyl]-28-O-[beta-D-allopyranosyl (1-->6)-beta-D-glucopyranosyl]-pomolic acid, 3-O-[alpha-L-rhamnopyranosyl (1-->2)-alpha-L-arabinopyranosyl]-28-O-[beta-D-allopyranosyl (1-->6)-beta-D-glucopyranosyl]-pomolic acid, and 3-O-[beta-D-glucopyranosyl (1-->3)-alpha-L-rhamnopyranosyl (1-->2)-beta-D-xylopyranosyl]-28-O-[beta-D-allopyranosyl(1-->6) -beta-D-glucopyranosyl]-pomolic acid, respectively, by the help of spectral evidence (IR, 1D- and 2D-NMR, FAB-MS).






Baykal T,Panayir T,Tasdemir D,Sticher O,Calis I




Has Abstract


1998-07-01 00:00:00














  • Galactan sulfate of Grateloupia indica: Isolation, structural features and antiviral activity.

    abstract::Natural compounds offer interesting pharmacological perspectives for antiviral drug development with regard to broad-spectrum antiviral properties and novel modes of action. In this study, we have analyzed polysaccharide fractions isolated from Grateloupia indica. The crude water extract (GiWE) as well as one fraction...


    pub_type: 杂志文章


    authors: Chattopadhyay K,Mateu CG,Mandal P,Pujol CA,Damonte EB,Ray B

    更新日期:2007-05-01 00:00:00

  • Diarylheptanoids from Myrica arborea.

    abstract::Investigations of the stem and root bark of Myrica arborea (Myricaceae) have yielded two novel diarylheptanoids, myricarborin and 11-O-beta-D-xylopyranosylmyricanol along with the known myricanol and 5-O-beta-D-glucopyranosylmyricanol. The structures of the novel compounds were determined by spectroscopic methods. ...


    pub_type: 杂志文章


    authors: Tene M,Wabo HK,Kamnaing P,Tsopmo A,Tane P,Ayafor JF,Sterner O

    更新日期:2000-08-01 00:00:00

  • N,beta-D-Glucopyranosyl vincosamide, a light regulated indole alkaloid from the shoots of Psychotria leiocarpa.

    abstract::From leaves of Psychotria leiocarpa, an indole alkaloid was isolated to which the structure N,beta-D-glucopyranosyl vincosamide (1) was assigned. This represents the first report of an N-glycosylated monoterpenoid indole alkaloid. In field-grown plants highest amounts of 1 were found in the leaves (2.5% of dry wt) and...


    pub_type: 杂志文章


    authors: Henriques AT,Lopes SO,Paranhos JT,Gregianini TS,Von Poser GL,Fett-Neto AG,Schripsema J

    更新日期:2004-02-01 00:00:00

  • Phosphoproteins analysis in plants: a proteomic approach.

    abstract::The study of phosphoproteome on a global scale represents one of the challenges in the post-genomic era. Here, we propose an integrated procedure starting from the crude protein extract, that consists of sequential purification steps, and ending up in the identification of phosphorylation sites. This involves (i) an e...


    pub_type: 杂志文章


    authors: Laugesen S,Messinese E,Hem S,Pichereaux C,Grat S,Ranjeva R,Rossignol M,Bono JJ

    更新日期:2006-10-01 00:00:00

  • Characterization of the 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase multigene family of Malus domestica Borkh.

    abstract::Two 1-aminocyclopropane-1-carboxylic acid (ACC) oxidase (ACO) genes have been cloned from RNA isolated from leaf tissue of apple (Malus domestica cv. Royal Gala). The genes, designated MD-ACO2 (with an ORF of 990bp) and MD-ACO3 (966bp) have been compared with a previously cloned gene of apple, MD-ACO1 (with an ORF of ...


    pub_type: 杂志文章


    authors: Binnie JE,McManus MT

    更新日期:2009-02-01 00:00:00

  • A benzoquinone and flavonoids from Cyperus alopecuroides.

    abstract::A benzoquinone, named alopecuquinone, was isolated from the ethanol extract of the inflorescences of Cyperus alopecuroides. Its structure was primarily elucidated by spectroscopic analysis including 1H, 13C NMR, APT, HMQC, 1H-1H COSY and CIMS. The known flavonoids, vicenin 2, orientin, diosmetin, quercetin 3,3'-dimeth...


    pub_type: 杂志文章


    authors: Nassar MI,Abdel-Razik AF,El-Khrisy Eel-D,Dawidar AA,Bystrom A,Mabry TJ

    更新日期:2002-06-01 00:00:00

  • Antimicrobial activities of sesquiterpene lactones and inositol derivatives from Hymenoxys robusta.

    abstract::Six compounds from the aerial parts of the Argentinean plant Hymenoxys robusta (Rusby) Parker were isolated and their structures elucidated using extensive spectroscopic analyses. These compounds comprise two inositol derivatives and four 3,4-seco-pseudoguaianolides, including vermeerin. Bioactivity assays of these co...


    pub_type: 杂志文章


    authors: Fortuna AM,Juárez ZN,Bach H,Nematallah A,Av-Gay Y,Sánchez-Arreola E,Catalán CA,Turbay S,Hernández LR

    更新日期:2011-12-01 00:00:00

  • Hierridin B and 2,4-dimethoxy-6-heptadecyl-phenol, secondary metabolites from the cyanobacterium Phormidium ectocarpi with antiplasmodial activity.

    abstract::Bioassay guided fractionation of the lipophilic extract of the marine cyanobacterium Phormidium ectocarpi yielded a new natural product hierridin B and the previously described compound 2,4-dimethoxy-6-heptadecyl-phenol. Both structures were secured by extensive spectroscopic analysis (1D and 2D NMR, MS, GC-MS, IR). T...


    pub_type: 杂志文章


    authors: Papendorf O,König GM,Wright AD

    更新日期:1998-12-01 00:00:00

  • The effect of growth temperature on the long-chain alkenes composition in the marine coccolithophorid Emiliania huxleyi.

    abstract::The hydrocarbon fraction of a pure culture of Emiliania huxleyi, composed of a mixture of C31, C33, C37 and C38 polyunsaturated n-alkenes, appeared strongly dependent on the growth temperature of the alga between 8 degrees C and 25 degrees C. The total hydrocarbon content increased linearly with decreasing temperature...


    pub_type: 杂志文章


    authors: Grossi V,Raphel D,Aubert C,Rontani JF

    更新日期:2000-06-01 00:00:00

  • Polygalasaponins XLII-XLVI from roots of Polygala glomerata.

    abstract::Five new oleanane-type saponins, polygalasaponins XLII-XLVI, along with two known saponins were isolated from the roots of Polygala glomerata Lour. The structures of polygalasaponins XLII-XLVI were elucidated as 3-O-beta-D-glucopyranosyl presenegenin 28-O-beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl- (1-->2)-{...


    pub_type: 杂志文章


    authors: Zhang D,Miyase T,Kuroyanagi M,Umehara K,Noguchi H

    更新日期:1998-02-01 00:00:00

  • Immunosuppressive diacetylenes, ceramides and cerebrosides from Hydrocotyle leucocephala.

    abstract::Three C-17 diacetylenic compounds (1-3), one monoterpenoid (4), seven ceramides (leucoceramides A-G, 5a-g), six cerebrosides (leucocerebrosides A-F, 6a-f) and nine known compounds were isolated from the methanolic extract of Hydrocotyle leucocephala. Their structures were established by spectroscopic methods. The isol...


    pub_type: 杂志文章


    authors: Ramos F,Takaishi Y,Kawazoe K,Osorio C,Duque C,Acuña R,Fujimoto Y,Sato M,Okamoto M,Oshikawa T,Ahmed SU

    更新日期:2006-06-01 00:00:00

  • 14-Decarboxyquinovic and quinovic acid glycosides from Zygophyllum album.

    abstract::Further investigation of the leaves and stems of Zygophyllum album afforded four triterpene glycosides which were characterized as 14-decarboxyquinovic acid-3 beta-O-beta-D-quinovopyranosyl (1-->4)-quinovopyranoside, quinovic acid 28-O-beta-D-glucopyranosyl (2-->1)beta-D-glucopyranosyl ester, quinovic acid 27-O-beta-D...


    pub_type: 杂志文章


    authors: Hassanean HA,el-Hamouly MM,el-Moghazy SA,Bishay DW

    更新日期:1993-06-01 00:00:00

  • The first prenylation step in hyperforin biosynthesis.

    abstract::Prenylation reactions contribute considerably to the diversity of natural products. Polyprenylated secondary metabolites include hyperforin which is both quantitatively and pharmacologically a major constituent of the medicinal plant Hypericum perforatum (St. John's wort). Cell cultures of the related species Hypericu...


    pub_type: 杂志文章


    authors: Boubakir Z,Beuerle T,Liu B,Beerhues L

    更新日期:2005-01-01 00:00:00

  • Anti-inflammatory lignans and phenylethanoid glycosides from the root of Isodon ternifolius (D.Don) Kudô.

    abstract::Five undescribed lignans, three undescribed phenylethanoid glycosides and eight known compounds were isolated from the root of Isodon ternifolius (D.Don) Kudô (Lamiaceae). The structures of all of the isolated constituents were characterized by physical data analyses including NMR, MS and ECD. The anti-inflammatory ac...


    pub_type: 杂志文章


    authors: Zhang Y,Wang K,Chen H,He R,Cai R,Li J,Zhou D,Liu W,Huang X,Yang R,Deng S,Li J,Guan X

    更新日期:2018-09-01 00:00:00

  • Antibacterial bromophenols from the marine red alga Rhodomela confervoides.

    abstract::Two bromophenols, together with three known compounds, were isolated from the methanolic extract of the marine alga, Rhodomela confervoides. By means of MS and NMR spectroscopic analyses, they were identified as 3-bromo-4-[2,3-dibromo-4,5-dihydroxyphenyl] methyl-5-(hydroxymethyl) 1,2-benzenediol (1) and 3-bromo-4-[2,3...


    pub_type: 杂志文章


    authors: Xu N,Fan X,Yan X,Li X,Niu R,Tseng CK

    更新日期:2003-04-01 00:00:00

  • Relationship between chemotypic and genetic diversity of natural populations of Artemisia herba-alba Asso growing wild in Tunisia.

    abstract::A total of 80 individuals collected from eight populations growing wild in different geographic zones were considered to assess the intraspecific variability of essential oil composition, genetic diversity and population structure of Artemisia herba-alba. The essential oil composition varied significantly between popu...


    pub_type: 杂志文章


    authors: Younsi F,Rahali N,Mehdi S,Boussaid M,Messaoud C

    更新日期:2018-04-01 00:00:00

  • Indole alkaloids of Psychotria as multifunctional cholinesterases and monoamine oxidases inhibitors.

    abstract::Thirteen Psychotria alkaloids were evaluated regarding their interactions with acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and monoamine oxidases A and B (MAO-A and MAO-B), which are enzymatic targets related with neurodegenerative diseases. Two quaternary β-carboline alkaloids, prunifoleine and 14-oxop...


    pub_type: 杂志文章


    authors: Passos CS,Simões-Pires CA,Nurisso A,Soldi TC,Kato L,de Oliveira CM,de Faria EO,Marcourt L,Gottfried C,Carrupt PA,Henriques AT

    更新日期:2013-02-01 00:00:00

  • The AOC promoter of tomato is regulated by developmental and environmental stimuli.

    abstract::The allene oxide cyclase (AOC) catalyzes the formation of cis-(+)-12-oxophytodienoic acid, an intermediate in jasmonate biosynthesis and is encoded by a single copy gene in tomato. The full length AOC promoter isolated by genome walk contains 3600 bp. Transgenic tomato lines carrying a 1000 bp promoter fragment and th...


    pub_type: 杂志文章


    authors: Stenzel I,Hause B,Proels R,Miersch O,Oka M,Roitsch T,Wasternack C

    更新日期:2008-06-01 00:00:00

  • Cyanogenic and non-cyanogenic glycosides from Manihot esculenta.

    abstract::In addition to lotaustralin and linamarin, a novel cyanogenic glycoside, 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)oxy)-2-met hylbutanenitrile , two novel non-cyanogenic glycosides, (2S)-((6-O-(beta-D-apiofuranosyl)-beta-D- glucopyranosyl)oxy)butane and 2-((6-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl)o...


    pub_type: 杂志文章


    authors: Prawat H,Mahidol C,Ruchirawat S,Prawat U,Tuntiwachwut-tikul P,Tooptakong U,Taylor WC,Pakawatchai C,Skeleton BW,White AH

    更新日期:1995-11-01 00:00:00

  • Comparative analysis of CYP93E proteins for improved microbial synthesis of plant triterpenoids.

    abstract::Cytochrome P450-dependent monooxygenases (P450s) belonging to the CYP93E subfamily catalyze the C-24 oxidation of the triterpene backbone during the biosynthesis of triterpenoid saponins, which are bioactive plant natural products. In our attempts to produce plant triterpenoids in the yeast Saccharomyces cerevisiae, w...


    pub_type: 杂志文章


    authors: Moses T,Thevelein JM,Goossens A,Pollier J

    更新日期:2014-12-01 00:00:00

  • Comparative phytochemical analysis of four Mexican Nymphaea species.

    abstract::Four Mexican Nymphaea species, N. ampla, N. pulchella, N. gracilis and N. elegans belonging to subgenera Brachyceras were analyzed. In this work two 5-glycosyl isoflavones, 7,3',4'-trihydroxy-5-O-beta-D-(2''-acetyl)-xylopyranosylisoflavone (1) and 7,3',4'-trihydroxy-5-O-alpha-L-rhamnopyranosylisoflavone (2), were isol...


    pub_type: 杂志文章


    authors: Marquina S,Bonilla-Barbosa J,Alvarez L

    更新日期:2005-04-01 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-...


    pub_type: 杂志文章


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

    更新日期:1994-11-01 00:00:00

  • Enzymatic preparation of 20(S, R)-protopanaxadiol by transformation of 20(S, R)-Rg3 from black ginseng.

    abstract::20(S)-protopanaxadiol (PPD(S)) and 20(R)-protopanaxadiol (PPD(R)), the main metabolites of ginsenosides Rg3(S) and Rg3(R) in black ginseng, are potential candidates for anti-cancer therapy due to their pharmacological activities such as anti-tumor properties. In the present study, we report the preparation of PPD(S, R...


    pub_type: 杂志文章


    authors: Liu L,Zhu XM,Wang QJ,Zhang DL,Fang ZM,Wang CY,Wang Z,Sun BS,Wu H,Sung CK

    更新日期:2010-09-01 00:00:00

  • Differential incorporation of 1-deoxy-D-xylulose into (3S)-linalool and geraniol in grape berry exocarp and mesocarp.

    abstract::In vivo feeding experiments with [5,5-(2)H(2)]mevalonic acid lactone (MVL) and [5,5-(2)H(2)]-1-deoxy-D-xylulose (DOX) indicate that the novel mevalonate-independent 1-deoxy- D-xylulose 5-phosphate/2C-methyl- D-erythritol 4-phosphate (DOXP/MEP) pathway is the dominant metabolic route for monoterpene biosynthesis in gra...


    pub_type: 杂志文章


    authors: Luan F,Wüst M

    更新日期:2002-07-01 00:00:00

  • Biosynthesis of 20-hydroxyecdysone in plants: 3β-hydroxy-5β-cholestan-6-one as an intermediate immediately after cholesterol in Ajuga hairy roots.

    abstract::3β-Hydroxy-5β-cholestan-6-one was identified in the EtOAc extract of Ajuga hairy roots by micro-analysis using LC-MS/MS in the multiple reaction mode (MRM). Furthermore, administration of (2,2,4,4,7,7-(2)H6)- and (2,2,4,4,6,7,7-(2)H7)-cholesterols to the hairy roots followed by LC-MS/MS analysis of the EtOAc extract o...


    pub_type: 杂志文章


    authors: Fujimoto Y,Maeda I,Ohyama K,Hikiba J,Kataoka H

    更新日期:2015-03-01 00:00:00

  • Antiplasmodial dimeric chalcone derivatives from the roots of Uvaria siamensis.

    abstract::Four dimeric chalcone derivatives, 8″,9″-dihydrowelwitschin H, uvarins A-C, a naphthalene derivative, 2-hydroxy-3-methoxy-6-(4'- hydroxyphenyl)naphthalene, and the known dimeric chalcones, dependensin and welwitschin E, flavonoids, a cyclohexane oxide derivative, an aromatic aldehyde were isolated from the roots of Uv...


    pub_type: 杂志文章


    authors: Salae AW,Chairerk O,Sukkoet P,Chairat T,Prawat U,Tuntiwachwuttikul P,Chalermglin P,Ruchirawat S

    更新日期:2017-03-01 00:00:00

  • Odd-numbered very-long-chain polyunsaturated fatty acids from the dinoflagellate Amphidinium carterae identified by atmospheric pressure chemical ionization liquid chromatography-mass spectrometry.

    abstract::A method is described for the enrichment of odd very-long-chain polyunsaturated fatty acids (VLCPUFAs) by means of RP-HPLC and argentation TLC from total fatty acids of the dinoflagellate A. carterae and their identification as picolinyl esters by means of microbore liquid chromatography-mass spectrometry with atmosph...


    pub_type: 杂志文章


    authors: Rezanka T,Nedbalová L,Sigler K

    更新日期:2008-11-01 00:00:00

  • Triterpenoid glycosides from Adina rubella.

    abstract::Two new triterpenoid glycosides, quinovic acid-3 beta-O-beta-D- glucopyranosyl-(1-->4)-alpha-L-rhamnopyranoside and quinovic acid-3 beta-O-beta-D-glucopyranosyl-(1-->3)-beta-D-fucopyranoside (named rubelloside A and B, respectively), were isolated from roots of Adina rubella. Their structures were elucidated by spectr...


    pub_type: 杂志文章


    authors: Fang SY,He ZS,Gao JH,Wang P

    更新日期:1995-07-01 00:00:00

  • Phosphorylation-mediated regulation of a rice ABA responsive element binding factor.

    abstract::OREB1 is a rice ABRE binding factor characterized by the presence of multiple highly-conserved phosphorylation domains (C1, C2, C3, and C4) and two kinase recognition motifs, RXXS/T and S/TXXE/D, within different functional domains. An in vitro kinase assay showed that OREB1 is phosphorylated not only by the SnRK2 kin...


    pub_type: 杂志文章


    authors: Hong JY,Chae MJ,Lee IS,Lee YN,Nam MH,Kim DY,Byun MO,Yoon IS

    更新日期:2011-01-01 00:00:00

  • Cassane diterpenoids from the stem of Caesalpinia pulcherrima.

    abstract::Cassane diterpenoids: pulcherrin A, pulcherrin B, pulcherrin C, neocaesalpin P, neocaesalpin Q and neocaesalpin R, together with eight known compounds: isovouacapenol C, 6beta-cinnamoyl-7beta-hydroxy-vouacapen-5alpha-ol, pulcherrimin E, pulcherrimin C, alpha-cadinol, 7-hydroxycadalene, teucladiol and bonducellin were ...


    pub_type: 杂志文章


    authors: Pranithanchai W,Karalai C,Ponglimanont C,Subhadhirasakul S,Chantrapromma K

    更新日期:2009-01-01 00:00:00