New polysulphanes from aerial parts of Ferula behboudiana Rech. f. & Esfand.

abstract：:A new chalcone named as balanochalcone (1) together with eight known compounds, methyl caffeate (2), β-hydroxydihydrochalcone (3), methyl gallate (4), dimethyl-6,9,10-trihydroxybenzo[kl]xanthene-1,2-dicarboxylate (5), p-coumaric acid (6), quercetin (7), scopoletin (8) and pinoresinol (9) have been isolated from the et...

journal_title：Natural product research

authors： Quang DN,So TC,Thanh NTP,Hoa LTP,Dien PH,Luong TM,Tung NQ,Long LD,Dai TD,Tien NQ

更新日期：2018-04-01 00:00:00

abstract：:Three new flavonol glycosides (1-3), hippophins K-M, were isolated from the seed residue of Hippophae rhamnoides subsp. sinensis. The chemical structures of these three new compounds were identified by 1D, 2D NMR, mass spectroscopy and high resolution electrospray ionization mass spectrometry spectroscopic data and by...

journal_title：Natural product research

authors： Chen C,Gao W,Ou-Yang DW,Zhang J,Kong DY

更新日期：2014-01-01 00:00:00

abstract：:From analysis by gas chromatography/mass spectrometry (GC/MS), the presence of either 2,4,5-tribromo-1H-imidazole (1) or 3,4,5-tribromo-1H-pyrazole (2) was tentatively identified in lipophilic extracts from the egg masses of three muricid molluscs. Synthesis of these compounds, followed by comparison of the GC retenti...

journal_title：Natural product research

authors： Benkendorff K,Pillai R,Bremner JB

更新日期：2004-10-01 00:00:00

abstract：:The ethanolic extract of the stems of Viburnum fordiae Hance showed insecticidal and α-glucosidase inhibitory activities and then was fractionated by bioactivity-guided fractionation to obtain a rare C13-norisoprenoid (1), together with a new phenolic glycoside (2), and seven known compounds, alangionoside C (3), pisu...

journal_title：Natural product research

authors： Shao JH,Chen J,Zhao CC,Shen J,Liu WY,Gu WY,Li KH

更新日期：2019-09-01 00:00:00

abstract：:The chemical composition of the essential oil of Kurzamra pulchella (Lamiaceae) was determined. Twelve compounds were identified, with isomenthone (60.6%) and pulegone (37.1%) predominating. Chemotaxonomical considerations were discussed. ...

journal_title：Natural product research

authors： Echeverría J,Niemeyer HM

更新日期：2017-01-01 00:00:00

abstract：:Lavandin (Lavandula × intermedia Emeric ex Loiseleur) essential oils (EOs), from Abrial, Super and Grosso cultivars, cultivated and extracted in the South East of Spain, were analysed by using GC/MS to determine their composition, in both relative (peak area) and absolute (using standard curves) concentrations. Linalo...

journal_title：Natural product research

authors： Carrasco A,Martinez-Gutierrez R,Tomas V,Tudela J

更新日期：2016-01-01 00:00:00

abstract：:Pectins were isolated from bark, wood and pith of kenaf (Hibiscus cannabinus L.) variety Cuba108. Imidazole was used as extractant. The isolated pectins were studied by 13C nuclear magnetic resonance (13C-NMR) spectroscopy and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). From the spectroscopic...

journal_title：Natural product research

authors： Pappas CS,Tarantilis PA,Polissiou MG

更新日期：2003-06-01 00:00:00

abstract：:A new diterpenoid glycoside, 14,15-dinor-labdan-13-one-8-O-alpha-L-arabinopyranoside (1), was isolated from Conyza blinii. The structure of this new arabinoside was elucidated on the basis of extensive NMR and HRMS spectroscopy. In addition, the presence of 3R-hydroxyoctadecanoic acid in C. blinii was reported for the...

journal_title：Natural product research

authors： Su Y,Chen L,Wang D,Chai X,Guo D

更新日期：2008-04-15 00:00:00

abstract：:A series of new thiazolyl chalcones, 1-[2-amino-4-methyl-1,3-thiazol-5-yl]-3-aryl-prop-2-en-1-one were prepared by piperidine mediated Claisen-Schmidt condensation of thiazolyl ketone with aromatic aldehyde. These chalcones on cyclisation gave 2-amino-6-(2-amino-4-methyl-1,3-thiazol-5-yl)-4-aryl-4H-pyridine-3-carbonit...

journal_title：Natural product research

authors： Venkatesan P,Maruthavanan T

更新日期：2012-01-01 00:00:00

abstract：:The ethanol extract of Stellera chamaejasme roots exhibited significant bioactivity against Peries rapae. In the course of a search for the active compounds, S-(+)-1,5-diphenyl-3-hydroxy-1-pentanone (1) was isolated and this compound has never been found before in S. chamaejasme as far as we known. The structure was e...

journal_title：Natural product research

authors： Liu Q,Jia H,Xiao B,Chen L,Zhou B,Hou TP

更新日期：2008-03-10 00:00:00

abstract：:The lipid peroxidation inhibitory activities of four hydroxyxanthones, isolated from the whole plant Swertia decussata, were evaluated for the first time. The most promising antioxidant among the xanthones, 1,7,8-trihydroxy-3-methoxyxanthone (swertianine, 4) was also tested for its scavenging potential against DPPH an...

journal_title：Natural product research

authors： Patro BS,Chintalwar GJ,Chattopadhyay S

更新日期：2005-06-01 00:00:00

abstract：:Four new and seven known diterpenes have been isolated from the dichloromethane extract of the aerial parts of Calceolaria polifolia. The structures of the new compounds were established by spectroscopic evidence. ...

journal_title：Natural product research

authors： Garbarino JA,Piovano M,Chamy MC,Espinoza L

更新日期：2007-02-01 00:00:00

abstract：:Chemical investigation of the root bark of Morus alba led to the isolation of a new flavone, dioxycudraflavone A (1) and a new 2-arylbenzofuran, 5-hydroxyethyl moracin M (2), together with seven known compounds namely sanggenon V (3), morusin (4), morusignin L (5), licoflavone C (6), moracin C (7), alfafuran (8) and m...

journal_title：Natural product research

authors： Li M,Wu X,Wang X,Shen T,Ren D

更新日期：2018-01-01 00:00:00

abstract：:The chemical composition of the volatile extract (yield ≈ 0.13%, v/w) from the bark of Quercus leucotrichophora (Fagaceae) was analysed for the first time by GC-MS. Twenty-three constituents, amounting to 93.0% of the total detected contents of the volatile extract, were identified. The volatile extract contained appr...

journal_title：Natural product research

authors： Sati SC,Sati N,Sati OP,Biswas D,Chauhan BS

更新日期：2012-01-01 00:00:00

abstract：:A new isoflavonoid, excelsanone (2), was isolated from the ethyl acetate extract of Erythrina excelsa stem bark, together with three known compounds namely 6,8-diprenylgenistein (3), β-sitosterol (1) and sitosteryl-β-D-glucopyranoside (4). Their structures were elucidated using spectroscopic methods (HR-ESI-MS, NMR an...

journal_title：Natural product research

authors： Gbaweng AJY,Daïrou H,Zingué S,Emmanuel T,Tchinda AT,Frédérich M,Mbafor JT

更新日期：2020-03-01 00:00:00

abstract：:Marsdenia tinctoria is an indigo producing plant commonly found in Borneo, Malaysia. In this present study, one new flavone kapitone (1) and three known compounds, that is 3,2'-dihydroxyflavone (2), 1-methylcyclobutene (3) and dimethyl isatoate (4) were isolated from the Malaysia Borneo M. tinctoria R. Br. (Apocynacea...

journal_title：Natural product research

authors： Mohd Nasuha NA,Choo YM

更新日期：2016-07-01 00:00:00

abstract：:Three new (1-3) and 17 known (4-20) iridoid and secoiridoid glycosides were isolated from a methanol extract of the rhizomes and roots of Gentiana scabra. Their chemical structures were elucidated from 1D and 2D NMR, IR absorption, and HR-ESI-MS spectra, as well as comparisons of these data with reported values. The e...

journal_title：Natural product research

authors： Li W,Zhou W,Kim S,Koo JE,Kim Y,Koh YS,Shim SH,Ma JY,Kim YH

更新日期：2015-01-01 00:00:00

abstract：:Thirteen phenones were obtained from the 70% ethanol extract of Paeonia suffruticosa Andrews. Their structures were determined on the basis of chemical methods and spectral data. Among them, compound 1 was identified as a new compound, and compounds 5 and 13 were obtained from genus Paeonia for the first time. The inh...

journal_title：Natural product research

authors： Ding L,Zuo Q,Li D,Feng X,Gao X,Zhao F,Qiu F

更新日期：2017-02-01 00:00:00

abstract：:Teucrium marum and T. subspinosum have been extracted with different polarity solvents, each crude extract was analysed with (1)H-NMR to compare the overall metabolic component. The polar extracts showed antioxidant activity in vitro. Verbascoside and arabinosyl-verbascoside were isolated and identified. Their concent...

journal_title：Natural product research

authors： Poli F,Serrilli AM,Scartezzini P,Muzzoli M,Maxia A,Ballero M,Serafini M,Bianco A

更新日期：2007-10-01 00:00:00

abstract：:The structure of pregnane oligoglycosides, namely rocinine (1) and marsdinine (11), which have been isolated from the chloroform soluble extract of the dried stem of Marsdenia roylei, were elucidated using MS, (1)H NMR, (13)C NMR, (1)H-(1)H COSY, HSQC and TOCSY experiments as well as chemical degradation and derivatis...

journal_title：Natural product research

authors： Gupta V,Kumar A,Khare A,Khare NK

更新日期：2009-01-01 00:00:00

abstract：:Further studies on Plectranthus sp. (Lamiaceae) led to the isolation of terpenes and phenol esters from Plectranthus strigosus Benth. ent-16-Kauren-19-ol (1), ent-16-kauren-19-oic acid (2), xylopic acid (3), xylopinic acid (4), hinokiol (5), 4 beta,6 beta-dihydroxy-1 alpha,5 beta(H)-guai-9-ene (6) 4 beta,6 beta-dihydr...

journal_title：Natural product research

authors： Gaspar-Marques C,Simões MF,Valdeira ML,Rodríguez B

更新日期：2008-01-20 00:00:00

abstract：:Two new sphingofungins G (1) and H (2) with a five-membered lactone ring were identified from the solid-state fermentation of Aspergillus penicilliodes Speg., a dominant microorganism isolated previously from the post-fermentation of ripe Pu-er tea, together with six known metabolites. Their structures were elucidated...

journal_title：Natural product research

authors： Zhang H,Zhu HT,Wang D,Yang CR,Zhang YJ

更新日期：2019-05-01 00:00:00

abstract：:Tannic acid, a rich of natural and process-derived phenolic compound, has been shown to be an effective antagonist against viruses and bacteria. In this study, we determined the antimicrobial activity and mechanisms of tannic acid against Staphylococcus aureus with emphasis on inhibiting effect on biofilm formation. B...

journal_title：Natural product research

authors： Dong G,Liu H,Yu X,Zhang X,Lu H,Zhou T,Cao J

更新日期：2018-09-01 00:00:00

abstract：:The aim of the present study was to study the effect of seeds of Asteracantha longifolia on the sexual behaviour of male albino rats. The ethanolic extract of seeds of A. longifolia was administered to groups of rats in 100, 150 and 200 mg kg⁻¹ doses for a period of 28 days, and the action compared with control rats. ...

journal_title：Natural product research

authors： Chauhan NS,Sharma V,Dixit VK

更新日期：2011-09-01 00:00:00

abstract：:Two new sesquiterpenoid glycosides as dihydrophaseic acid 4'-O-[6″-O-(4″'-hydroxy-3″', 5″'-dimethoxy) benzoyl)]-β-D-glucopyranoside (1) and dihydrophaseic acid 4'-O-[6″-O-(3″'-methoxy- 4″'-hydroxy) benzoyl)]-β-D-glucopyranoside (2), were isolated from the stems of Zanthoxylum armatum in the study. The compound 1 and 2...

journal_title：Natural product research

authors： Liu YL,Gao LL,Song TT,Guo T,Chang J

更新日期：2020-11-01 00:00:00

abstract：:A novel monoterpenoid indole alkaloid, melognine (1) possessing an unprecedented skeleton with a 6/6/5/5/6/6 hexatomic rearranged ring system was isolated from the stems of Melodinus fusiformis. The structure with absolute configuration of 1 was established by extensive spectroscopic analyses and quantum ECD calculati...

journal_title：Natural product research

authors： Zhou J,Du SY,Fang ZY,Feng JH

更新日期：2019-11-01 00:00:00

abstract：:Physalis angulata is an annual herb which has tremendous medicinal uses. The antioxidant activity of the whole plant extract of Physalis angulata was investigated using DPPH radical scavenging activity. Purified compounds were isolated using column chromatography method. Their structures were determined using various ...

journal_title：Natural product research

authors： Odusina BO,Onocha PA

更新日期：2020-11-23 00:00:00

abstract：:The anti-enteroviral activity of three stilbenoids isolated from the leaves of Macaranga barteri was investigated using the cytopathic effect reduction assay. The stilbenes were inactive against echovirus E13 but showed activity against echoviruses E7 and E19. In particular, vedelianin (2), schweinfurthin G (3) and ma...

journal_title：Natural product research

authors： Segun PA,Ogbole OO,Akinleye TE,Faleye TOC,Adeniji AJ

更新日期：2019-07-25 00:00:00

abstract：:In the present study, hydroxy-2-methyl-4H-pyran-4-one was isolated from the methanol root extract of Senecio laetus and was identified by FT-IR, 1H, 13C NMR and GC-MS. The larvicidal potential of the compound 3-hydroxy-2-methyl-4H-pyran-4-one was evaluated against the 4th instar larvae of Anopheles stephensi, Aedes ae...

journal_title：Natural product research

authors： Ali SI,Venugopalan V

更新日期：2019-06-27 00:00:00

abstract：:The brown seaweed, Sargassum linearifolium (Turner) C. Agardh, 1820 is commonly available along the south-east coast of India. Its compound fucosterol was isolated and confirmed through spectral characterisation and chemical transformation methods. The antiplasmodial effect of the isolated fucosterol was investigated ...

journal_title：Natural product research

authors： Perumal P,Sowmiya R,Prasanna Kumar S,Ravikumar S,Deepak P,Balasubramani G

更新日期：2018-06-01 00:00:00