Three new diterpenoids from the resin of Liquidambar formosana.

abstract：:The chemical composition of the solvent extracted fixed oil of black cumin (Nigella sativa L.) seeds was determined by capillary GC and GC/MS. Thirty-two fatty acids (99.9%) have been identified in the fixed oil. The major fatty acids were linoleic acid (50.2%), oleic acid (19.9%), margaric acid (10.3%), cis-11,14-eic...

journal_title：Natural product research

authors： Amin S,Mir SR,Kohli K,Ali B,Ali M

更新日期：2010-07-01 00:00:00

abstract：:Two new myrsinol-type diterpene polyesters 3,5,13,17-tetra-O-acetyl-7-O-benzoyl-15-hydroxymyrsinol (1) and 3,5,13,17-tetra-O-acetyl-7-O-butanoyl-13-hydroxymyrsinol (2), with a tricyclic carbon skeleton have been isolated from Euphorbia decipiens Boiss. & Buhse. The structure elucidation of the isolated compounds was b...

journal_title：Natural product research

authors： Ahmad VU,Hussain J,Hussain H,Farooq U,Farmanullah,Lodhi MA,Choudhary MI

更新日期：2005-04-01 00:00:00

abstract：:Pigments synthesised by Chryseobacterium sp. kr6 growing on feather waste were extracted and characterised. The pigment extract was characterised by KOH test, UV-vis, CIELAB colour system, HPLC-DAD-MS, FTIR and its antioxidant capacity was evaluated. A positive bathochromic shift was observed when kr6 colonies or pigm...

journal_title：Natural product research

authors： Jiménez MEP,Pinilla CMB,Rodrigues E,Brandelli A

更新日期：2019-06-01 00:00:00

abstract：:A new xanthone named cratoxylumxanthone A (1), together with five known compounds: dulcisxanthone B (2), alpha-mangostin (3), beta-mangostin (4), 2-geranyl-1,3,7-trihydroxy-4-(3-methylbut-2-enyl)xanthone (5) and tectochrystin (6), was isolated from Cratoxylum cochinchinense stems. The structure of new compound was cha...

journal_title：Natural product research

authors： Phuwapraisirisan P,Udomchotphruet S,Surapinit S,Tip-Pyang S

更新日期：2006-12-01 00:00:00

abstract：:Three new aconitine-type C19-diterpenoid alkaloids, taipeinines A-C (1-3), were isolated from the roots of Aconitum taipaicum. The chemical structures of these three compounds were established as (1α,6α,8α,14α,16α)-20-ethyl-8,14-dihydroxy-1,6,16-trimethoxy-4-(methoxymethyl)-aconitane (1), (1α,6α,8α,14α,16β)-20-ethyl-8...

journal_title：Natural product research

authors： Guo ZJ,Xu Y,Zhang H,Li MY,Xi K

更新日期：2014-01-01 00:00:00

abstract：:Eleven compounds were isolated from the rhizomes of Paris polyphylla Smith var. yunnanensis. Their structures were elucidated on the basis of rigorous 1D and 2D NMR experiments as well as comparison with the literature data. To the best of our knowledge, compound 1 was only predicted by UPLC/Q-TOF MSE and the NMR spec...

journal_title：Natural product research

authors： Jing S,Wang Y,Li X,Man S,Gao W

更新日期：2017-03-01 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：:This paper aims to investigate, for the first time, physicochemical characteristics and antioxidant capacity of Psidium myrtoides ripe and unripe fruit. In addition, essential oil was extracted from fresh leaves (PM-EO) collected in dry and rainy seasons to investigate the influence of seasonality and, after that, to ...

journal_title：Natural product research

authors： Dias ALB,Batista HRF,Sousa WC,Bailão EFLC,Rocha JD,Sperandio EM,Fernandes CC,Souchie EL,Miranda MLD

更新日期：2020-11-09 00:00:00

abstract：:Phytochemical investigation on the stem bark of Shorea maxwelliana yielded five oligostilbenoids identified as α-viniferin (1), maximol A (2), vaticanol A (3), suffruticosol A (4) and vaticanol G (5). Chemotaxonomy of isolated compounds was discussed briefly. Major compounds were tested for neurotoxic and cytotoxic ac...

journal_title：Natural product research

authors： Zawawi NK,Ahmat N,Mazatulikhma MZ,Shafiq RM,Wahid NH,Sufian AS

更新日期：2013-01-01 00:00:00

abstract：:32 medicinal plants that are unique to the Russian Pharmacopeia have 693 isolated natural products associated with them (an average of 21.66 compounds per plant). This is in contrast to the US Pharmacopeia plants that have delivered 2366 known natural products (an average of 42.25 compounds per plant). ...

journal_title：Natural product research

authors： Chupakhin E,Babich O,Prosekov A,Asyakina L,Gureev M,Krasavin M

更新日期：2020-02-21 00:00:00

abstract：:Among phenolic compounds, Agave americana L. extract contained puerarin (38.4%) and p-coumaric acid (12.29%) (pCa). From the Lineweaver-Burk plots, pCa and puerarin demonstrated a competitive and a non competitive inhibitions towards human α-amylase activity, respectively. PCa exhibited a higher human inhibitory activ...

journal_title：Natural product research

authors： Sahnoun M,Bejar S,Daoud L,Ayadi L,Brini F,Saibi W

更新日期：2019-03-01 00:00:00

abstract：:A new 5-O-beta-D-glucopyranosyl-4-(4-hydroxyphenyl)-7-methoxy-2H-chromen-2-one (1), together with four known compounds, one coumarin, 5-O-beta-D-galactopyranosyl-4-(4-hydroxyphenyl)-7-methoxy-2H-chromen-2-one (2) and three cucurbitacins, 23,24-dihydrocucurbitacin F (3), 23,24-dihydro-25-acetylcucurbitacin F (4) and 2-...

journal_title：Natural product research

authors： Olmedo D,Rodríguez N,Vásquez Y,Solís PN,López-Pérez JL,Feliciano AS,Gupta MP

更新日期：2007-06-01 00:00:00

abstract：:Two new lanostane triterpnenoids named endertiins A and B (1 and 2) together with two known compounds as ganodecalone A (3) and ergosterol (4) have been successfully isolated from the cultivated fruit bodies of the mushroom Humphreya endertii Stey (Ganodermataceae). Their structures were elucidated by a combination of...

journal_title：Natural product research

authors： Quang DN,Long LD,Tung NQ,Thanh NN,Tham LX

更新日期：2020-08-03 00:00:00

abstract：:The aryltetralin lignans 6-methoxypodophyllotoxin, 5'-demethoxy-6-methoxypodophyllotoxin as well as the corresponding 8'-epimers 6-methoxypicropodophyllin, and 5'-demethoxy-6-methoxypicropodophyllin were isolated from suspension cultures of Linum cariense, and 4'-demethyl-6-methoxypodophyllotoxin together with 6-metho...

journal_title：Natural product research

authors： Konuklugil B,Ionkova I,Vasilev N,Schmidt TJ,Windhövel J,Fuss E,Alfermann AW

更新日期：2007-01-01 00:00:00

abstract：:A new protostane-type triterpenoid bearing an oxetane ring in the side-chain, named alisol W (1), has been obtained from the dried rhizome of Alisma plantago-aquatica subsp. orientale. The structure and absolute configuration of compound 1 was determined from extensive spectroscopic analysis. In addition, the vasorela...

journal_title：Natural product research

authors： Li HM,Liu D,Dai WF,Chen XQ,Li RT

更新日期：2019-11-01 00:00:00

abstract：:A total of 25 compounds including terpenoids, flavonoids, biflavonoids and ginkgolic acids were identified and quantified with a reliable, simple, and simultaneous method from Ginkgo leaves, seed coats and embryoids with different tree ages (approximately identified as 25, 500, 1000 and 2000 years). Leaves had the hig...

journal_title：Natural product research

authors： Chen X,Zhong W,Shu C,Yang H,Li E

更新日期：2020-07-01 00:00:00

abstract：:In this study, phytochemical composition, antioxidant, enzyme inhibition and cytotoxic activities of methanol and dichloromethane (DCM) extracts of Bougainvillea glabra (B. glabra) flowers were investigated. Methanol extract was found to have higher total bioactive contents and UHPLC-MS analysis of methanol extract re...

journal_title：Natural product research

authors： Saleem H,Htar TT,Naidu R,Zengin G,Ahmad I,Ahemad N

更新日期：2020-09-01 00:00:00

abstract：:Two new xanthone derivatives, penixanthones A (1) and B (2), together with three known compounds, aspenicillide (3), 1,5-dihydroxy-3-methoxy-7-methyl-anthracene-9,10-dione (4) and 1,2-indandiol (5), were isolated from the ethyl acetate extract of a culture of the fungus Penicillium sp. SYFz-1, which was separated from...

journal_title：Natural product research

authors： Tao H,Wei X,Lin X,Zhou X,Dong J,Yang B

更新日期：2017-10-01 00:00:00

abstract：:The stem bark of Cussonia bancoensis is used traditionally for the treatment of different types of infection and pain. A bioassay guided fractionation of the methanol stem bark extract led to the isolation of five pentacyclic triterpenes and glycosides identified based on spectroscopic data as 23-hydroxyursolic acid (...

journal_title：Natural product research

authors： Mireku EA,Mensah AY,Amponsah IK,Danquah CA,Anokwah D,Kwesi Baah M

更新日期：2020-03-01 00:00:00

abstract：:A new propanamide analogue (1), along with one known alkaloid (2) and four known diketopiperazines (3-6), was isolated from a cultured broth of the actinomycete Streptomyces sp. Q24 that was obtained from a sample of mangrove soil. The structures of these isolates were characterised as 3-acetylamino-N-2-thienyl-propan...

journal_title：Natural product research

authors： Ye X,Chai W,Lian XY,Zhang Z

更新日期：2017-06-01 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：:A new carotenoid glycoside, namely neo-rehmannioside (1), together with five known compounds, 6-O-seco-hydroxyaeginetoyl ajugol (2), oxyrehmaionoside B (3), ajugol (4), geniposidic acid (5) and geniposide (6) was isolated from the 95% ethanol extract of dry roots of Rehmannia glutinosa. The structure of the new compou...

journal_title：Natural product research

authors： Fu GM,Shi SP,Ip FC,Pang HH,Ip NY

更新日期：2011-08-01 00:00:00

abstract：:Two new monoterpene glucosides: xanmonoter A (1) and xanmonoter B (2) were isolated from Xanthium strumarium. Their structures were elucidated on the basis of 1D and 2D NMR, MS and CD analysis. Compounds 1 and 2 were tested for their anti-inflammatory activity with IC50 values of 17.4, 22.1 μM, respectively. ...

journal_title：Natural product research

authors： Jiang H,Xing X,Yan M,Guo X,Yang L,Yang L

更新日期：2019-12-01 00:00:00

abstract：:Phytochemical reinvestigation on the whole plants of Derris laxiflora Benth. afforded two new diprenylated flavanones, derriflavanones B and C (1-2), together with thirty-two known compounds, including sixteen flavonoids (3-18), eleven aromatic compounds (19-29), and five chlorophylls (30-34). All known compounds were...

journal_title：Natural product research

authors： Huang HC,Chien SC,Kuo CC,Wu MD,Cheng MJ,Chen JJ,Chiu HL,Kuo YH

更新日期：2020-08-01 00:00:00

abstract：:Phytochemical investigation of the stem and root barks of Friesodielsia obovata Benth (Annonaceae) afforded new 3',5'-diformyl-2',4',6'-trihydroxychalcone and N-formyl-7-hydroxyglaucine together with five known compounds, 3',5'-dimethyl-2',4',6'-trihydroxychalcone, (-)-crotepoxide, demethoxymatteucinol, lawinal, and b...

journal_title：Natural product research

authors： Joseph CC,Magadula JJ,Nkunya MH

更新日期：2007-09-01 00:00:00

abstract：:Three compounds, toosendanin (1), kulactone (2) and scopoletin (3), were isolated from either the root bark and/or the stem bark of Melia volkensii. Their structures were determined on the basis of spectroscopic data generated and by comparison with data from the literature. 1 and 2, isolated for the first time from M...

journal_title：Natural product research

authors： Kamau RW,Juma BF,Baraza LD

更新日期：2016-09-01 00:00:00

abstract：:Two new norsesquiterpenes were isolated from the extracts of the roots and rhizomes of Ligularia lapathifolia (Franch.) Hand.-Mazz. Their structures were identified as 2-acetyl-3a-methyl-5-(2-methyl-but-2-enoyloxy)-3a,4,5,6,7,7a-hexahydro-H-indene-4-carboxylic acid (1) and 2-acetyl-8a-methyl-2-(2-methyl-but-2-enoyloxy...

journal_title：Natural product research

authors： Li YS,Wang ZT,Zhang M,Chen JJ,Luo SD

更新日期：2004-04-01 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：:Studies on the stem of Garcinia mangostana have led to the isolation of one new xanthone mangosharin (1) (2,6-dihydroxy-8-methoxy-5-(3-methylbut-2-enyl)-xanthone) and six other prenylated xanthones, alpha-mangostin (2), beta-mangostin (3), garcinone D (4), 1,6-dihydroxy-3,7-dimethoxy-2-(3-methylbut-2-enyl)-xanthone (5...

journal_title：Natural product research

authors： Ee GC,Daud S,Taufiq-Yap YH,Ismail NH,Rahmani M

更新日期：2006-10-01 00:00:00

abstract：:The CDC25 phosphatases regulate the cell division cycle by controlling the activity of cyclin-dependent kinases. While screening for inhibitors of phosphatases among natural products we repeatedly found that some polyprenyl-hydroquinones and polyprenyl-furans (furanoterpenoids) (furospongins, furospinosulins) were pot...

journal_title：Natural product research

authors： Erdogan-Orhan I,Sener B,de Rosa S,Perez-Baz J,Lozach O,Leost M,Rakhilin S,Meijer L

更新日期：2004-02-01 00:00:00