Radical scavengers from the entomogenous deuteromycete Beauveria amorpha.

abstract：:One new triterpene, kudinchalactone A (1), and four new triterpenoid saponins, ilekudinchosides A-D (2- 5), were isolated from the leaves of Ilex kudincha C. J. Tseng along with eight known triterpenoids. These new compounds were elucidated by spectroscopic methods including 1D and 2D NMR, HR-TOF-MS, and CD spectra. C...

journal_title：Planta medica

authors： Zuo WJ,Dai HF,Chen J,Chen HQ,Zhao YX,Mei WL,Li X,Wang JH

更新日期：2011-11-01 00:00:00

abstract：:Two new acylated secoiridoid glycosides were isolated from the aqueous acetone extract of the whole herb of Gentiana algida. The structures of these new products were established by spectral and chemical methods as 6'-(2,3-dihydroxybenzoyl)sweroside and 6'-(2,3-dihydroxybenzoyl)swertiamarin, respectively. ...

journal_title：Planta medica

authors： Tan RX,Hu J,Dong LD,Wolfender JL,Hostettmann K

更新日期：1997-12-01 00:00:00

abstract：:A new activity of triterpenes and triterpenoid glycosides against phytovirus has been found. Based on the anti-TMV replication activity in vivo, 47 triterpenes and triterpenoid glycosides were screened through the leaf-disk method together with indirect ELISA. Structure-activity relationships were analyzed according t...

journal_title：Planta medica

authors： Zhang ZK,Ouyang MA,Wu ZJ,Lin QY,Xie LH

更新日期：2007-11-01 00:00:00

abstract：:The active ingredient dl-tetrahydropalmatine (THP) isolated from the traditional Chinese herb Corydalis racemosa has been found to have antihypertensive effects. However, severe cardiac and neurological toxic effects were reported from using this herb for the treatment of pain. In an isolated perfused rat heart model,...

journal_title：Planta medica

authors： Chan P,Chiu WT,Chen YJ,Wu PJ,Cheng JT

更新日期：1999-05-01 00:00:00

abstract：:Eight compounds were isolated from the CH (2)Cl (2) extracts of ERYTHRINA SENEGALENSIS to assess HIV-1 protease (PR) activity inhibition. The prenylated isoflavone structures, identified by spectroscopic analysis, were 8-prenylluteone ( 1), auriculatin ( 2), erysenegalensein O ( 3), erysenegalensein D ( 4), erysenegal...

journal_title：Planta medica

authors： Lee J,Oh WK,Ahn JS,Kim YH,Mbafor JT,Wandji J,Fomum ZT

更新日期：2009-02-01 00:00:00

abstract：:From leaves of Penstemon barbatus Nutt. a new iridoid glucoside has been isolated. The structure was established mainly by spectroscopic methods ( (1)H-NMR, (13)C-NMR, IR, MS). ...

journal_title：Planta medica

authors： Junior P

更新日期：1982-06-01 00:00:00

abstract：:One new diterpene, 2 alpha-hydroxy-12beta-hydroxy-isopimara-8(14), 15-diene, and six known compounds as triterpenes, sterols and fatty acid, were isolated from the stem bark of Tanaecium jaroba (Bignoniaceae), a Bolivian plant used in traditional medicine. Their structures were established mainly by 1D and 2D NMR (COS...

journal_title：Planta medica

authors： Mitaine-Offer AC,Sauvain M,Deharo E,Muñoz V,Zèches-Hanrot M

更新日期：2002-06-01 00:00:00

abstract：:According to traditional usage, the extract of Longan Arillus was tested for its anxiolytic-like effect by application of the Vogel-type anti-conflict method in mice. The extract indicated significant activity at a dose of 2 g/kg, s.c., and results of the bioassay-oriented isolation revealed adenosine to be the active...

journal_title：Planta medica

authors： Okuyama E,Ebihara H,Takeuchi H,Yamazaki M

更新日期：1999-03-01 00:00:00

abstract：:A methanolic extract of Commelina communis showed potent inhibitory activity against alpha-glucosidase. One pyrrolidine alkaloid, 2,5-dihydroxymethyl-3,4-dihydroxypyrrolidine (DMDP, 1) and four piperidine alkaloids, 1-deoxymannojirimycin (2), 1-deoxynojirimycin (3), alpha-homonojirimycin (4) and 7-O-beta-D-glucopyrano...

journal_title：Planta medica

authors： Kim HS,Kim YH,Hong YS,Paek NS,Lee HS,Kim TH,Kim KW,Lee JJ

更新日期：1999-06-01 00:00:00

abstract：:The medicinal plants, Coutarea latiflora Sesse & Moc. ex. DC. (Hintonia latiflora Bullock) (Rubiaceae) and Exostema caribaeum (Jacq.) Roem. et Schult. (Rubiaceae) were examined for antimalarial properties. Among different crude solvent extracts of the stem bark, the hydrolysed ethyl acetate extracts were shown to have...

journal_title：Planta medica

authors： Noster S,Kraus L

更新日期：1990-02-01 00:00:00

abstract：:A known sesquiterpene lactone, encelin, isolated from the Mexican species Montanoa speciosa (Compositae), was assayed for biocidal activity on fungal cells of Mucor rouxii. The results indicate that encelin has a determining action on growth and the morphogenetic process of fungal cells. ...

journal_title：Planta medica

authors： Sabanero M,Quijano L,Rios T,Trejo R

更新日期：1995-04-01 00:00:00

abstract：:Capillary GC, GC-MS, IR, GC-IR, (1)H- and (13)C-NMR studies of the essential oil from the leaves and cones of ELSHOLTZIA POLYSTACHYA collected from two different locations in India revealed that one oil contained 1,8-cineol (37.3%), the other one perillene (61.2%) as the main constituent. ...

journal_title：Planta medica

authors： Mathela CS,Melkani AB,Bisht JC,Pant AK,Bestmann HJ,Erler J,Kobold U,Rauscher J,Vostrowsky O

更新日期：1992-08-01 00:00:00

abstract：:Bioactivity-guided fractionation of Saururus chinensis (Saururaceae) using a lymphoproliferation assay led us to isolate 5 lignans (compounds 1 - 5). Compounds 1 - 5 were identified as sauchinone, (-)-saucerneol, saucerneol C, manassantin A, and manassantin B, respectively, by spectroscopic analyses. The immunosuppres...

journal_title：Planta medica

authors： Park SY,Lee SH,Choi WH,Koh EM,Seo JH,Ryu SY,Kim YS,Kwon DY,Koh WS

更新日期：2007-06-01 00:00:00

abstract：:Astilbin, a flavonoid compound, was isolated from the rhizome of Smilax glabra Roxb. This study was conducted to investigate the efficacy of astilbin on experimental diabetic nephropathy (DN) in vivo and in vitro and its possible mechanisms. Astilbin was added in high glucose stimulated HK-2 cells, streptozotocin-indu...

journal_title：Planta medica

authors： Li GS,Jiang WL,Yue XD,Qu GW,Tian JW,Wu J,Fu FH

更新日期：2009-11-01 00:00:00

abstract：:Olive oil has been shown to exhibit beneficial effects in the prevention of cardiovascular diseases although its molecular mechanism still remains unclear. In the present study, we investigated the effect of hydroxytyrosol (HT), a major phenolic component in olive oil and leaves from OLEA EUROPAEA L. (Oleaceae family...

journal_title：Planta medica

authors： Zrelli H,Matsuka M,Araki M,Zarrouk M,Miyazaki H

更新日期：2011-10-01 00:00:00

abstract：:Two new compounds, methyl 3-chloro-6-hydroxy-2-(4-hydroxy-2-methoxy-6-methylphenoxy)-4-methoxybenzoate (1) and (2 S,5' R,E)-7-hydroxy-4,6-dimethoxy-2-(1-methoxy-3-oxo-5-methylhex-1-enyl)-benzofuran-3(2H)-one (2), together with four known compounds, griseofulvin (3), dechlorogriseofulvin (4), bostrycin (5), and deoxybo...

journal_title：Planta medica

authors： Xia X,Li Q,Li J,Shao C,Zhang J,Zhang Y,Liu X,Lin Y,Liu C,She Z

更新日期：2011-10-01 00:00:00

abstract：:This review describes the current status of the development of techniques combining liquid chromatography and nuclear magnetic resonance and their use in the context of natural products. HPLC-NMR methods have a rapidly growing impact on natural products research by enabling structure determination of natural products ...

journal_title：Planta medica

authors： Jaroszewski JW

更新日期：2005-08-01 00:00:00

abstract：:Phytochemical investigation of the dichloromethane extract of the leaves of Peltophorum pterocarpum, a tropical ornamental tree, led to the isolation of twelve compounds (1-12). One new derivative of peltogynoid ophioglonin (1) and a new 2-phenoxychromone (2) with its 3'-O-β-D-glucoside derivative (3) are described he...

journal_title：Planta medica

authors： Polasek J,Queiroz EF,Marcourt L,Meligova AK,Halabalaki M,Skaltsounis AL,Alexis MN,Prajogo B,Wolfender JL,Hostettmann K

更新日期：2013-04-01 00:00:00

abstract：:A quantitative analysis using (1)H-NMR (Q-NMR) has been developed for the determination of strychnine and brucine in Strychnos nux-vomica seeds and stems. The advantages of the method are that no reference alkaloids are needed for calibration curves, the quantification could be directly realized on a crude extract, st...

journal_title：Planta medica

authors： Frédérich M,Choi YH,Verpoorte R

更新日期：2003-12-01 00:00:00

abstract：:Five new dibenzocyclooctane lignans, schisanwilsonins K-O, together with eighteen known lignans were isolated from the stems of Schisandra wilsoniana. The structures of these new compounds were elucidated by spectroscopic methods, including 2D-NMR techniques. Several compounds were found to show anti-HIV and anti-HBV ...

journal_title：Planta medica

authors： Ma WH,Lu Y,Chen DF

更新日期：2013-08-01 00:00:00

abstract：:When added to suspension cultures of CATHARANTHUS ROSEUS, abscisic acid (ABA) stimulated intracellular accumulation of the indole alkaloids catharanthine and ajmalicine in both flask and 30 litre fermenter-scale systems. The response varied, and depended upon the cell line, the concentration and source of the ABA, and...

journal_title：Planta medica

authors： Smith JI,Smart NJ,Kurz WG,Misawa M

更新日期：1987-10-01 00:00:00

abstract：:The phytochemical investigation of the aerial parts of LACTUCA SALIGNA L. revealed the presence of lactucin, lactucopicrin, and a new guaianolide named 11beta,13-dihydrolactucopicrin. The structural configuration was established through spectral data. ...

journal_title：Planta medica

authors： Khalil AT,El-Fattah HA,Mansour ES

更新日期：1991-04-01 00:00:00

abstract：:Leaves and stem barks of S. scheffleri Gilg afforded eight dihydroindole alkaloids. Four tertiary monomers (O-methyl Na-acetylstrychnosplendine, Na-acetylstrychnosplendine, strychnobrasiline and strychnofendlerine) have been isolated from leaf material while stem barks yielded one tertiary monomer (desacetylisoretulin...

journal_title：Planta medica

authors： Caprasse M,Angenot L

更新日期：1981-08-01 00:00:00

abstract：:Antroquinonol ( 1), an ubiquinone derivative, was isolated from the solid-state fermented mycelium of Antrodia camphorata (Polyporaceae, Aphyllophorales), a parasitic fungus indigenous to Taiwan. The structure of compound 1 was elucidated by the analysis of their spectroscopic data. Its cytotoxic activities were evalu...

journal_title：Planta medica

authors： Lee TH,Lee CK,Tsou WL,Liu SY,Kuo MT,Wen WC

更新日期：2007-10-01 00:00:00

abstract：:(1)H- and (13)C-NMR spectral data are presented for six p-terphenylquinone derivatives (and for two monosubstituted quinones 1 and 2, used as model compounds) and for 9,10-phenanthraquinone and retenequinone. The chemical shifts were confirmed through correlation spectroscopy and NOE measurements. ...

journal_title：Planta medica

authors： Jokela R,Lounasmaa M

更新日期：1997-08-01 00:00:00

abstract：:Tuberculosis is the main cause of death from a single infectious agent. Globally, according to the World Health Organization, in 2018, there were an estimated 1.2 million tuberculosis deaths. Moreover, there is a continuous appearance of drug-resistant strains. Thus, development of new antituberculosis medicines shoul...

journal_title：Planta medica

authors： Guzmán-Gutiérrez SL,Silva-Miranda M,Krengel F,Huerta-Salazar E,León-Santiago M,Díaz-Cantón JK,Espitia Pinzón C,Reyes-Chilpa R

更新日期：2020-05-11 00:00:00

abstract：:Andrographis paniculata contains four major active diterpenoids, including andrographolide (1), 14-deoxy-11, 12-didehydroandrographolide (2), neoandrographolide (3), and 14-deoxyandrographolide (4), which exhibit differences in types and/or degrees of their pharmacological activity. Previous pharmacokinetic studies in...

journal_title：Planta medica

authors： Pholphana N,Panomvana D,Rangkadilok N,Suriyo T,Ungtrakul T,Pongpun W,Thaeopattha S,Satayavivad J

更新日期：2016-01-01 00:00:00

abstract：:The hypoglycemic activity of olive leaf was studied. Maximum hypoglycemic activity was obtained from samples collected in the winter months, especially in February. One of the compounds responsible for this activity was oleuropeoside, which showed activity at a dose of 16 mg/kg. This compound also demonstrated antidia...

journal_title：Planta medica

authors： Gonzalez M,Zarzuelo A,Gamez MJ,Utrilla MP,Jimenez J,Osuna I

更新日期：1992-12-01 00:00:00

abstract：:Blue cohosh, Caulophyllum thalictroides (L.) Michx. is a popular herb, roots and rhizomes of which have been extensively used for women's health. Alkaloids and saponins are considered to be responsible for its pharmacological effects. In this investigation the methanolic extract of the roots of blue cohosh, the alkalo...

journal_title：Planta medica

authors： Madgula VL,Ali Z,Smillie T,Khan IA,Walker LA,Khan SI

更新日期：2009-03-01 00:00:00

abstract：:The concentrations of taxol and related compounds in the bark and needles of Taxus cuspidata grown on Mt. Jiri, Mt. Sobaek, and Cheju Island, and T. cuspidata var. latifolia on Ullung Island in Korea were determined by high performance liquid chromatography (HPLC). The taxane content significantly varied with the loca...

journal_title：Planta medica

authors： Choi MS,Kwak SS,Liu JR,Park YG,Lee MK,An NH

更新日期：1995-06-01 00:00:00