Triterpenoid saponins from the roots of Gypsophila trichotoma Wender.

abstract：:Nine undescribed compounds, including five xanthone derivatives, two flavonoids, one 2-pyrone derivative, and one undescribed naturally occurring compound, along with 30 known phenolic compounds, were isolated from Hypericum japonicum. In addition, hyperjaponols A and B were identified as racemates. The structures and...

journal_title：Phytochemistry

authors： Zhu W,Qiu J,Zeng YR,Yi P,Lou HY,Jian JY,Zuo MX,Duan L,Gu W,Huang LJ,Li YM,Yuan CM,Hao XJ

更新日期：2019-08-01 00:00:00

abstract：:Herbivory and wounding upregulate a large suite of defense genes in hybrid poplar leaves. A strongly wound- and herbivore-induced gene with high similarity to Arabidopsis vegetative storage proteins (VSPs) and acid phosphatase (AP) was identified among genes strongly expressed during the poplar herbivore defense respo...

journal_title：Phytochemistry

authors： Veljanovski V,Major IT,Patton JJ,Bol E,Louvet S,Hawkins BJ,Constabel CP

更新日期：2010-04-01 00:00:00

abstract：:Five phenylpropanoid esters of sucrose glycosides, trivially named smiglasides A-E, were isolated from the rhizomes of Smilax glabra. Their structures were elucidated on the basis of spectroscopic studies. ...

journal_title：Phytochemistry

authors： Chen T,Li JX,Xu Q

更新日期：2000-04-01 00:00:00

abstract：:Metabolomics or the large-scale phytochemical analysis of plants is reviewed in relation to functional genomics and systems biology. A historical account of the introduction and evolution of metabolite profiling into today's modern comprehensive metabolomics approach is provided. Many of the technologies used in metab...

journal_title：Phytochemistry

authors： Sumner LW,Mendes P,Dixon RA

更新日期：2003-03-01 00:00:00

abstract：:Parasitic diseases continue to be a major worldwide health problem, and there is an urgent need for development of therapeutic drugs. This paper describes synthesis of dehydrodiferulic acid dilactone 1 and dehydrodisinapic acid dilactone 2 furofuran lignans by oxidative coupling of ferulic and sinapic acids, respectiv...

journal_title：Phytochemistry

authors： Pereira AC,Esperandim VR,Ferreira da Silva D,Magalhães LG,Lima TC,Nanayakkara DN,Cunha WR,Bastos JK,Andrade e Silva ML

更新日期：2014-11-01 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：: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...

journal_title：Phytochemistry

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

abstract：:In a chemotaxonomic survey of 57 Pelargonium species, leaf exudate flavonoids were detected in 35% of the sample, mostly in trace amounts. However, chrysin and a related C-methylflavanone were identified as major leaf surface constituents of P. crispum, and a mixture of quercetin and kaempferol mono-, and di- and trim...

journal_title：Phytochemistry

authors： Williams CA,Harborne JB,Newman M,Greenham J,Eagles J

更新日期：1997-12-01 00:00:00

abstract：:Schizolobium parahyba seed chymotrypsin inhibitor (SPC) is a protein with M(r) of 20,000 and four half-cystine residues and no free thiol group. SPC is stable at temperatures up to 75 degrees at pH 7 but gradually loses activity when kept at 95 degrees for 1 hr and total inactivation occurs after 5 hr. Amino acid anal...

journal_title：Phytochemistry

authors： Souza EM,Mizuta K,Sampaio MU,Sampaio CA

更新日期：1995-06-01 00:00:00

abstract：:During the search for new protein tyrosine phosphatase (PTP) 1B inhibitors, EtOH extracts from the aerial parts of Lantana camara L. (lantana) collected at Manado (Indonesia) and two subtropical islands in Japan (Ishigaki and Iriomote Islands, Okinawa) exhibited potent inhibitory activities against PTP1B in an enzyme ...

journal_title：Phytochemistry

authors： Abdjul DB,Yamazaki H,Maarisit W,Rotinsulu H,Wewengkang DS,Sumilat DA,Kapojos MM,Losung F,Ukai K,Namikoshi M

更新日期：2017-12-01 00:00:00

abstract：:Benzoxazinoids are secondary metabolites of grasses that function as natural pesticides. While many steps of DIMBOA biosynthesis have been elucidated, the mechanism of the introduction of OCH(3)-group at the C-7 position was unknown. Inhibitor experiments in Triticum aestivum and Zea mays suggest that a 2-oxoglutarate...

journal_title：Phytochemistry

authors： Frey M,Huber K,Park WJ,Sicker D,Lindberg P,Meeley RB,Simmons CR,Yalpani N,Gierl A

更新日期：2003-02-01 00:00:00

abstract：:The antifungal glycoalkaloid alpha-tomatine of the tomato plant (Lycopersicon esculentum) is proposed to protect the plant against phytopathogenic fungi. Fusarium oxysporum f. sp. lycopersici, a vascular pathogen of tomato, produces a tomatinase enzyme which hydrolyses the glycoalkaloid into non-fungitoxic compounds. ...

journal_title：Phytochemistry

authors： Lairini K,Ruiz-Rubio M

更新日期：1997-08-01 00:00:00

abstract：:Due to their pronounced cytotoxic activity, a number of aryltetralin lignans (ATLs), such as podophyllotoxin (PTOX), are used as antitumor compounds. The production of such molecules from entire plants or plant cell-tissue-organ cultures is thus of interest to the pharmaceutical industry. Hairy root cultures constitut...

journal_title：Phytochemistry

authors： Cong LH,Dauwe R,Lequart M,Vinchon S,Renouard S,Fliniaux O,Colas C,Corbin C,Doussot J,Hano C,Lamblin F,Molinié R,Pilard S,Jullian N,Boitel M,Gontier E,Mesnard F,Laberche JC

更新日期：2015-07-01 00:00:00

abstract：:Five cucurbitacins, kuguacins A-E (1-5), together with three known analogues, 3beta,7beta,25-trihydroxycucurbita-5,(23E)-diene-19-al (6), 3beta,25-dihydroxy-5beta,19-epoxycucurbita-6,(23E)-diene (7), and momordicine I (8), were isolated from roots of Momordica charantia. Structures of 1-5 were elucidated by NMR and MS...

journal_title：Phytochemistry

authors： Chen J,Tian R,Qiu M,Lu L,Zheng Y,Zhang Z

更新日期：2008-02-01 00:00:00

abstract：:A lateral bud growth inhibitor was isolated from etiolated pea seedlings and identified as indole-3-aldehyde. The indole-3-aldehyde content was significantly higher in the diffusates from explants with apical bud and indole-3-acetic acid treated decapitated explants, in which apical dominance is maintained, than in th...

journal_title：Phytochemistry

authors： Nakajima E,Nakano H,Yamada K,Shigemori H,Hasegawa K

更新日期：2002-12-01 00:00:00

abstract：:A lignan diglycoside, (-)-isolariciresinol 3alpha-O-beta-apiofuranosyl-(1-->2)-O-beta-glucopyranoside, and a megastigmane glucoside, sauroposide, were isolated from the aerial part of Sauropus androgynus together with (+)-isolariciresinol 3alpha-O-beta-glucopyranoside, (-)-isolariciresinol 3alpha-O-beta-glucopyranosid...

journal_title：Phytochemistry

authors： Kanchanapoom T,Chumsri P,Kasai R,Otsuka H,Yamasaki K

更新日期：2003-08-01 00:00:00

abstract：:Chemical examination of the ethyl acetate solubles of the CH(3)OH:CH(2)Cl(2) (1:1) extract of the roots of Excoecaria agallocha L. collected from Godavary estuary resulted in the isolation of three more new diterpenoids, agallochins M-O (1-3). The structures of the new diterpenoids were elucidated by a study of their ...

journal_title：Phytochemistry

authors： Anjaneyulu AS,Rao VL

更新日期：2003-02-01 00:00:00

abstract：:Three anthocyanins, all acylated delphinidin 3,7,3',5'-tetraglucosides, and a naphthalene glycoside, 2-acetyl-1,5-dihydroxy-3 methyl-8-O(xylosyl-(1-->6)-glucosyl) naphthalene, have been isolated from the berries of two Dianella species, D. nigra and D. tasmanica. The anthocyanins show exceptional blueness at in vivo p...

journal_title：Phytochemistry

authors： Bloor SJ

更新日期：2001-11-01 00:00:00

abstract：:The genuine major benzylisoquinoline alkaloid occurring in the traditional medicinal plant greater celandine (Chelidonium majus L.) is 13,14-dihydrocoptisine and not - as described previously - coptisine. Structure of 13,14-dihydrocoptisine was elucidated. The discrepancy between the alkaloid pattern of the living pla...

journal_title：Phytochemistry

authors： Paulsen J,Yahyazadeh M,Hänsel S,Kleinwächter M,Ibrom K,Selmar D

更新日期：2015-03-01 00:00:00

abstract：:Three acylated flavonol glycosides have been identified from leaves of Planchonia grandis Ridley. They possess kaempferol as aglycone and two triglycosidic chains substituting hydroxyl groups at the 3- and 7-positions. The first glycosidic unit of each chain is esterified by a cis or trans p-coumaric acid. Structural ...

journal_title：Phytochemistry

authors： Crublet ML,Long C,Sévenet T,Hadi HA,Lavaud C

更新日期：2003-09-01 00:00:00

abstract：:Seven pure flavonoids were isolated and identified from five moss species. The flavonoids were the flavones apigenin, apigenin-7-O-triglycoside, lucenin-2, luteolin-7-O-neohesperidoside, saponarine and vitexin; and the biflavonoid bartramiaflavone. Some of these flavonoids were shown to have pronounced antibacterial e...

journal_title：Phytochemistry

authors： Basile A,Giordano S,López-Sáez JA,Cobianchi RC

更新日期：1999-12-01 00:00:00

abstract：:The major component (35-65%) of the volatile oil obtained by steam distillation of the leaves of Melaleuca triumphalis has been identified as (rel)-1beta-pentyl-1alpha,6alpha-dihydroxy-3,3,5,5-tetramethylcyclohexa-2,4-dione (trivial name triumphalone). Relative stereochemistry was established by nuclear Overhauser exp...

journal_title：Phytochemistry

authors： Brophy JJ,Craig DC,Goldsack RJ,Fookes CJ,Leach DN,Waterman PG

更新日期：2006-09-01 00:00:00

abstract：:A series of 3α,5-cycloandrostane analogues with a range of functionality (6α and 6β alcohols and ketone) at carbon 6 were tested in the endogenous lactonization pathway in Aspergillus tamarii KITA. This metabolic route converts progesterone to testololactone in high yield through a four step enzymatic pathway. To date...

journal_title：Phytochemistry

authors： Hunter AC,Patel S,Dedi C,Dodd HT,Bryce RA

更新日期：2015-11-01 00:00:00

abstract：:The CHCl(3) extract of the bark of Garcinia speciosa contained four 17,14-friedolanostanes and five lanostanes as well as friedelin and common plant constituents. The friedolanostanes were the previously known methyl ester of (24E)-3 alpha,23 alpha-dihydroxy-17,14-friedolanostan-8,14,24-trien-26-oic acid and the methy...

journal_title：Phytochemistry

authors： Vieira LM,Kijjoa A,Silva AM,Mondranondra IO,Kengthong S,Gales L,Damas AM,Herz W

更新日期：2004-02-01 00:00:00

abstract：:A new flavonol tetraglycoside, together with two known flavonol glycosides, kaempferol 7-rhamnoside and kaempferol 3-rhamnosyl(1-->6) galactoside-7-rhamnoside, were isolated from fresh plant material of Cephalocereus senilis. The structure of the new compound was established as kaempferol 3-O-beta-D-glucopyranosyl(1--...

journal_title：Phytochemistry

authors： Liu Q,Liu M,Mabry TJ,Dixon RA

更新日期：1994-05-01 00:00:00

abstract：:The thiol redox-sensitive and the total proteome in harvest-ripe grains of closely related genotypes of wheat (Triticum aestivum L.), with either a dormant or a non-dormant phenotype, were investigated using hybrid lines of spring wheat double haploid population segregating transgressively, to gain further insight int...

journal_title：Phytochemistry

authors： Bykova NV,Hoehn B,Rampitsch C,Hu J,Stebbing JA,Knox R

更新日期：2011-07-01 00:00:00

abstract：:Silene species are known for their use in traditional medicine in treating several diseases. To the authors' knowledge there is no report on the chemical composition of S. odontopetala. Therefore, the phytochemical investigation of the methanol extract of S. odontopetala was carried out, leading to the isolation of si...

journal_title：Phytochemistry

authors： Ün RN,Masullo M,Karayildirim T,Nalbantsoy A,Alankus O,Piacente S

更新日期：2020-08-01 00:00:00

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...

journal_title：Phytochemistry

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

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...

journal_title：Phytochemistry

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

abstract：:Four meroterpenoids, 1-hydroxychevalone C, 1-acetoxychevalone C, 1,11-dihydroxychevalone C, and 11-hydroxychevalone C and two ester epimers, 2S,4S-spinosate and 2S,4R-spinosate, together with seven known compounds, chevalones B, C, and E, tryptoquivaline, nortryptoquivaline, tryptoquivaline L, and quinadoline A were i...

journal_title：Phytochemistry

authors： Rajachan OA,Kanokmedhakul K,Sanmanoch W,Boonlue S,Hannongbua S,Saparpakorn P,Kanokmedhakul S

更新日期：2016-12-01 00:00:00