Hepatoprotective pyranocoumarins from the stems of Clausena emarginata.

abstract：:Investigation of a hairy root culture of Tripterygium wilfordii var. regelii transformed with Agrobacterium rhizogenes resulted in the isolation of new diterpenoid and sesquiterpenoid together with known triterpenoids. These structures were determined by spectroscopic analyses. ...

journal_title：Phytochemistry

authors： Nakano K,Yoshida C,Furukawa W,Takaishi Y,Shishido K

更新日期：1998-11-20 00:00:00

abstract：:Seven sesquiterpene lactones, 8-O-methacryloylelephanpane, 2,4-bis-O-methyl-8-O-methacryloylelephanpane, 4-O-ethyl-8-O-methacryloylelephanpane, 8-O-methacryloylisoelephanpane, 2-O-demethyltomenphantopin C, molephantin A, molephantin B, along with ten known ones, were isolated from Elephantopus mollis (Asteraceae). The...

journal_title：Phytochemistry

authors： Wu ZN,Zhang YB,Chen NH,Li MJ,Li MM,Tang W,Zhuang L,Li YL,Wang GC

更新日期：2017-05-01 00:00:00

abstract：:Fractionation of an ethanol extract of a Madagascar collection of the leaves and fruit of Cassipourea lanceolata Tul. led to the isolation of three euphane triterpenoids 1-3. The (1)H and (13)C NMR spectra of all compounds were fully assigned using a combination of 2D NMR experiments, including COSY, TOCSY, HSQC (HMQC...

journal_title：Phytochemistry

authors： Hou Y,Cao S,Brodie PJ,Miller JS,Birkinshaw C,Andrianjafy MN,Andriantsiferana R,Rasamison VE,TenDyke K,Shen Y,Suh EM,Kingston DG

更新日期：2010-04-01 00:00:00

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...

journal_title：Phytochemistry

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

更新日期：2005-04-01 00:00:00

abstract：:The degradation of the beta-conglycinin protein reserves in soybean seeds during germination and early growth begins with the proteolysis of its alpha and alpha' subunits by an enzyme called Protease C1. In the pathway, a number of proteolytic intermediates are produced and subsequently degraded. Determination of the ...

journal_title：Phytochemistry

authors： Tan-Wilson AL,Liu X,Chen R,Qi X,Wilson KA

更新日期：1996-05-01 00:00:00

abstract：:The essential oil of aerial parts of Capillipedium parviflorum (family Poaceae) was obtained by hydrodistillation in 0.4% yield on dry weight basis. The oil was analysed by capillary GC and GC-MS techniques. Two new compounds from plant source 4-nonanol 51.7% and 4-undecanone 23.5% predominated in the essential oil an...

journal_title：Phytochemistry

authors： Mahmood U,Kaul VK,Acharya R

更新日期：2004-07-01 00:00:00

abstract：:Chemical investigation of the methanol extract of the fertile form of Roccella montagnei collected in Vietnam afforded twelve secondary metabolites, including five new montagnetol derivatives, orsellinylmontagnetols A-D and a furanyl derivative together with seven known compounds. Their chemical structures were elucid...

journal_title：Phytochemistry

authors： Duong TH,Huynh BLC,Chavasiri W,Chollet-Krugler M,Nguyen VK,Nguyen THT,Hansen PE,Le Pogam P,Thüs H,Boustie J,Nguyen KPP

更新日期：2017-05-01 00:00:00

abstract：:Indole alkaloids, oxytrofalcatins A-F (1-6), together with five other known alkaloids (7-11), were isolated from the roots of Oxytropis falcata. Their structures were elucidated by comprehensive spectroscopic analyses, including using 1D and 2D NMR spectroscopy and mass spectrometry. This is the first report of N-benz...

journal_title：Phytochemistry

authors： Chen WH,Wu QX,Wang R,Shi YP

更新日期：2010-06-01 00:00:00

abstract：:(-)-Sabinene is the major monoterpene produced by a European strain of the liverwort Conocephalum conicum. A cell-free extract from in vitro cultured plants catalysed the cyclization of geranyl diphosphate to sabinene. The responsible monoterpene cyclase was partially purified and characterized as an operationally sol...

journal_title：Phytochemistry

authors： Adam KP,Croteau R

更新日期：1998-09-01 00:00:00

abstract：:Reinvestigation of the fermentation broth and mycelium of the coprophilous fungus Guanomyces polythrix, grown in static conditions, led to the isolation of several phytotoxic compounds, including two new naphthopyranone derivatives, namely (2S, 3R)-5-hydroxy-6,8-dimethoxy-2,3-dimethyl-2,3-dihydro-4H-naphtho[2,3-b]-pyr...

journal_title：Phytochemistry

authors： Macías M,Gamboa A,Ulloa M,Toscano RA,Mata R

更新日期：2001-11-01 00:00:00

abstract：:Six phragmalin limonoids, named tabulalin and tabulalides A-E, were isolated from the root bark of Chukrasia tabularis (Meliaceae). Their structures were determined by spectroscopic methods, and their antifeedant properties evaluated. ...

journal_title：Phytochemistry

authors： Nakatani M,Abdelgaleil SA,Saad MM,Huang RC,Doe M,Iwagawa T

更新日期：2004-10-01 00:00:00

abstract：:Six new iridoids, 6-O-alpha-L-(2"-O-, 3"-O-, 4"-O-tribenzoyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-cis-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-trans-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-benzoyl, 3"-O-trans-p-coumaroyl)rhamnopyranosylca...

journal_title：Phytochemistry

authors： Helfrich E,Rimpler H

更新日期：2000-05-01 00:00:00

abstract：:Two new flavone glucosides, nevadensin 5-O-beta-D-glucoside and nevadensin 5-O-beta-D-glucosyl(1-->6)beta-D-glucoside, have been isolated from the aerial parts of Lysionotus pauciflorus. The structures have been determined by means of UV, mass spectral and one- and two-dimensional 1H and 13C NMR techniques. ...

journal_title：Phytochemistry

authors： Liu Y,Wagner H,Bauer R

更新日期：1996-07-01 00:00:00

abstract：:The unique series of C-2''-acylated C-glycosylflavones is extended by the discovery of the C-8-glucosyl derivatives 2''-O-galloylvitexin and 2''-O-galloylorientin and their C-6 analogues 2''-O-galloylisovitexin and 2''-O-galloylisoorientin, representing the first described O-galloyl-C-glycosylflavones. They are accomp...

journal_title：Phytochemistry

authors： Latté KP,Ferreira D,Venkatraman MS,Kolodziej H

更新日期：2002-02-01 00:00:00

abstract：:Artemisinin was derivatized to dihydroartemisinin carboxymethylether in three steps, without disturbing the peroxide bridge, and then linked to either thyroglobulin (TGB) or bovine serum albumin (BSA). The artemisinin-TGB and -BSA conjugates were injected in female New Zealand rabbits but only the artemisinin-TGB conj...

journal_title：Phytochemistry

authors： Ferreira JF,Janick J

更新日期：1996-01-01 00:00:00

abstract：:Five new compounds (three esters and two glycosides) and seven previously reported compounds were isolated as biotransformation products of digitoxigenin by ginseng hairy root cultures. The new esters and glycosides were elucidated as digitoxigenin stearate, digitoxigenin palmitate, digitoxigenin myristate, 3-epidigit...

journal_title：Phytochemistry

authors： Kawaguchi K,Hirotani M,Yoshikawa T,Furuya T

更新日期：1990-01-01 00:00:00

abstract：:Unlike most Nicotiana species, leaf tissues of the globally significant weed Nicotiana glauca Grah. (Argentinian tree tobacco) contains anabasine as the main component of its alkaloid pool, with concentrations typically increasing several fold in response to wounding of plants. The Δ(1)-piperidinium ring of anabasine ...

journal_title：Phytochemistry

authors： DeBoer KD,Dalton HL,Edward FJ,Ryan SM,Hamill JD

更新日期：2013-02-01 00:00:00

abstract：:From the hexane extract of berries of Juniperus excelsa, one new and four known diterpenes were isolated besides a known sesquiterpene. The structures of the known diterpenes were identified as isopimaric, isocommunic, (-)ent-trans communic and sandracopimaric acids, along with the sesquiterpene 4a-hydroxycedrol and t...

journal_title：Phytochemistry

authors： Topçu G,Erenler R,Cakmak O,Johansson CB,Celik C,Chai HB,Pezzuto JM

更新日期：1999-04-01 00:00:00

abstract：:Oleanolic acid (3β-hydroxyolean-12-en-28-oic acid) is a pentacyclic triterpenoid compound with a widespread occurrence throughout the plant kingdom. In nature, the compound exists either as a free acid or as an aglycone precursor for triterpenoid saponins, in which it can be linked to one or more sugar chains. Oleanol...

journal_title：Phytochemistry

authors： Pollier J,Goossens A

更新日期：2012-05-01 00:00:00

abstract：:Three iridoid glycosides, picrorosides A (1), B (2) and C (3), and a cucurbitacin glycoside, scrophoside A (4), were isolated from the rhizomes of Neopicrorhiza scrophulariiflora (Scrophulariaceae), along with two known iridoid glycosides, picrosides I (5) and II (6), and three known cucurbitacin glycosides (7-9). The...

journal_title：Phytochemistry

authors： Kim IH,Uchiyama N,Kawahara N,Goda Y

更新日期：2006-12-01 00:00:00

abstract：:Plant cell suspension cultures of Rauvolfia are able to produce a high amount of arbutin by glucosylation of exogenously added hydroquinone. A four step purification procedure using anion exchange, hydrophobic interaction, hydroxyapatite-chromatography and chromatofocusing delivered in a yield of 0.5%, an approximatel...

journal_title：Phytochemistry

authors： Arend J,Warzecha H,Stöckigt J

更新日期：2000-01-01 00:00:00

abstract：:From a water extract of whole plants of Sesamum indicum, two new, and six known phenylethanoid glycosides, and three new triglycosides which had the same sugar sequence were isolated. The structures of the new compounds were elucidated from chemical and spectroscopic evidence. ...

journal_title：Phytochemistry

authors： Suzuki N,Miyase T,Ueno A

更新日期：1993-10-01 00:00:00

abstract：:Four pairs of enantiomeric β-carboline alkaloids, (+/-)-kumudine A-D, along with their biosynthesis-related compound kumudine E, were obtained from the stems of Picrasma quassioides. Their structures, including the absolute configurations, were determined via extensive spectroscopic data combined with electronic circu...

journal_title：Phytochemistry

authors： Zhao WY,Zhou WY,Chen JJ,Yao GD,Lin B,Wang XB,Huang XX,Song SJ

更新日期：2019-03-01 00:00:00

abstract：:The challenges and opportunities for protecting agricultural production of food and other materials will be met through exploiting the induction of defence pathways in plants to control pests, diseases and weeds. These approaches will involve processes that can be activated by application of natural products, patented...

journal_title：Phytochemistry

authors： Pickett JA,Birkett MA,Bruce TJ,Chamberlain K,Gordon-Weeks R,Matthes MC,Napier JA,Smart LE,Woodcock CM

更新日期：2007-11-01 00:00:00

abstract：:A catechol oxidase from lemon balm (Melissa officinalis) moCO which only catalyzes the oxidation of catechols to quinones without hydroxylating tyrosine was purified. The molecular mass of the M. officinalis enzyme of 39,370 Da was obtained by MALDI mass spectrometry and the isoelectric point was determined to be 3.4....

journal_title：Phytochemistry

authors： Rompel A,Büldt-Karentzopoulos K,Molitor C,Krebs B

更新日期：2012-09-01 00:00:00

abstract：:An 80% acetone extract of Monarda punctata showed an inhibitory effect on lipase activity in isolated mouse plasma in vitro and carvacrol was obtained as the active constituent. It had an IC₅₀ value of 4.07 mM invitro and suppressed elevations in blood triacylglycerol levels in olive oil-loaded mice. Furthermore, from...

journal_title：Phytochemistry

authors： Yamada K,Murata T,Kobayashi K,Miyase T,Yoshizaki F

更新日期：2010-11-01 00:00:00

abstract：:Caralluma sinaica is sold on local markets of Saudi Arabia for various health benefits however no phytochemical study has specifically been performed on this species. NMR and UHPLC-ESI-TOF-MS profilings of the ethanolic extract of the whole plant reveal a very complex phytochemical composition dominated by pregnanes. ...

journal_title：Phytochemistry

authors： Al-Massarani SM,Bertrand S,Nievergelt A,El-Shafae AM,Al-Howiriny TA,Al-Musayeib NM,Cuendet M,Wolfender JL

更新日期：2012-07-01 00:00:00

abstract：:Six new and three synthetically known glycosides have been isolated from the leaves of Moringa oleifera, employing a bioassay-directed isolation method on the ethanolic extract. Most of these compounds, bearing thiocarbamate, carbamate or nitrile groups, are fully acetylated glycosides, which are very rare in nature. ...

journal_title：Phytochemistry

authors： Faizi S,Siddiqui BS,Saleem R,Siddiqui S,Aftab K,Gilani AH

更新日期：1995-03-01 00:00:00

abstract：:The first seco-uleine alkaloids, manilamine (1) (18-hydroxy-19,20-dehydro-7,21-seco-uleine) and N4-methyl angustilobine B (2), were isolated from the (pH 5) alkaloid extract of Philippine Alstonia scholaris leaves together with the known indole alkaloids 19,20-(E)-vallesamine (3), angustilobine B N4-oxide (4), 20(S)-t...

journal_title：Phytochemistry

authors： Macabeo AP,Krohn K,Gehle D,Read RW,Brophy JJ,Cordell GA,Franzblau SG,Aguinaldo AM

更新日期：2005-05-01 00:00:00

abstract：:Small molecules (xenobiotics) that inhibit cell-wall-localised enzymes are valuable for elucidating the enzymes' biological roles. We applied a high-throughput fluorescent dot-blot screen to search for inhibitors of Petroselinum xyloglucan endotransglucosylase (XET) activity in vitro. Of 4216 xenobiotics tested, with ...

journal_title：Phytochemistry

authors： Chormova D,Franková L,Defries A,Cutler SR,Fry SC

更新日期：2015-09-01 00:00:00