Abstract:
:A new protopine alkaloid, protomexicine and a new isoflavonoid, mexitin, together with 8-methoxydihydrosanguinarine, 13-oxoprotopine, rutin and quercetrin have been isolated from the aerial part of the methanolic extract of Argemone mexicana. The structures of these compounds have been established by various spectral data. The structure of protomexicine was further confirmed by heteronuclear multiple bond correlation experiment. Protomexicine and mexitin are new compounds, and other compounds are first reported from A. mexicana and genus Argemone.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Singh S,Pandey VB,Singh TDdoi
10.1080/14786419.2010.529809subject
Has Abstractpub_date
2012-01-01 00:00:00pages
16-21issue
1eissn
1478-6419issn
1478-6427journal_volume
26pub_type
杂志文章abstract::Camptothecin (CPT), the derivatives of which are used clinically for the treatment of metastatic colon cancer, is isolated from intact plants that can be subjected to environmental fluctuations. In vitro cultures may be an alternate and continuous source for year-round production of CPT. Since CPT production by undiff...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2011.559469
更新日期:2011-10-01 00:00:00
abstract::Designing propolis products for external use involves determining the optimal form of propolis for the introduction into dermatological pharmaceuticals and cosmetic preparations. As a potent ingredient, propolis oil extract from raw material harvested in Lithuania was analysed. The rheological characteristics, content...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2010.529440
更新日期:2011-09-01 00:00:00
abstract::A continuous phytochemical study on the seeds of Senna obtusifolia (Syn.: Cassia obtusifolia) led to the isolation of a new anthraquinone analogue, obtusifolin-2-O-β-D-(6'-O-α,β-unsaturated butyryl)-glucopyranoside (1) and a new eurotinone analogue, epi-9-dehydroxyeurotinone-β-D-glucopyranoside (2). Their structures w...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1480621
更新日期:2019-12-01 00:00:00
abstract::The chemical investigation of whole plants Euphorbia stracheyi Boiss from China led to the isolation of one new ent-kaurane diterpene, ent-Kaurane-16β,17,19-triol-3-one (1), along with three known ent-kaurane diterpenoids (2-4) as ent-Kaurane-3α,16β,17-triol (2),ent-16S,17-dihydroxy-kaurane-3-one (3) and ent-3S,16S,17...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1222385
更新日期:2017-01-01 00:00:00
abstract::The present study was designed to evaluate the herbicidal activity of Datura metel against the noxious weed parthenium (Parthenium hysterophorus L.). In a laboratory bioassay, the effect of aqueous, methanol and n-hexane shoot and root extracts of 5, 10, 15 and 20% w/v (on a fresh weight basis) concentration of D. met...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410903075440
更新日期:2010-09-01 00:00:00
abstract::Antibacterial activities of prenylated xanthones from Garcinia mangostana and their synthetic analogues were investigated, and their structure-activity relationships have been studied. γ-Mangostin has shown antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA), methicillin sensitive Staphyl...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.678348
更新日期:2013-01-01 00:00:00
abstract::As part of our search for compounds with cytotoxicity from endophytes of traditional Chinese medicines, two novel nor-sesquiterpenoids (1-2) with a new skeleton containing a tetrahydrofuran moiety were isolated form a rice medium of Fusarium tricinctum, an endophytic fungus isolated from the root of Ligusticum chuanxi...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1712385
更新日期:2020-01-24 00:00:00
abstract::A new phthalide derivative, xylarphthalide A (1), along with two known compounds (-)-5-carboxylmellein (2) and (-)-5-methylmellein (3), were isolated from the endophytic fungus Xylaria sp. GDG-102 cultured from the Chinese medicinal plant Sophora tonkinensis. Their structures were identified by MS and NMR experiments,...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1311892
更新日期:2018-04-01 00:00:00
abstract::The main purpose of this study was the characterisation of 'Serra da Lousã' heather honey by using novel statistical methodology, relevant principal component analysis, in order to assess the correlations between production year, locality and composition. Herein, we also report its chemical composition in terms of sug...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410701825004
更新日期:2008-01-01 00:00:00
abstract::The microbial transformation studies of 7-O-prenylquercetin (1), 4'-O-prenylquercetin (2) and quercetin (3) were investigated with 20 different microbial strains to discover new metabolites. It was revealed that the fungus Mucor hiemalis was the most appropriate micro-organism which was capable of transforming these f...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1367780
更新日期:2018-04-01 00:00:00
abstract::This review covers the literature published since the report of the first compound to December 2006, for marine natural 2,11-cyclized cembranoids isolated from Caribbean sources, with 30 citations, most of them from 2000 to 2006, referring to compounds isolated from the Caribbean gorgonian octocorals Briareum asbestin...
journal_title:Natural product research
pub_type: 杂志文章,评审
doi:10.1080/14786410701760797
更新日期:2009-01-01 00:00:00
abstract::The antiplasmodial active extract of Xanthium cavanillesii contains 3,4-dicaffeoyl quinic acid (3,4-DCQA), 3,5-dicaffeoyl quinic acid (3,5-DCQA) and 1,3,5-tricaffeoyl quinic acid (1,3,5-TCQA). These results inspired us to investigate the interaction of these molecules with a promising validated target of Plasmodium, P...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1219856
更新日期:2017-03-01 00:00:00
abstract::Two new glycerol esters, (S)-2-hydroxy-3-(octanoyloxy)propyl tetracosanoate (1) and (S)-3-(((S)-11-acetoxy octadecanoyl)oxy)propane-1,2-diyl diacetate (2), and eight known compounds, docosanedioic acid (3), 2,5-dimethylnonadecane (4), lupeol (5), stigmasterol (6), β-sitosterol (7), heptadecanoic acid (8), hexanedioic ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1777117
更新日期:2020-06-12 00:00:00
abstract::A new anthraquinone (4) and three known anthraquinones (1-3) were isolated from Galium verum L. Their structures were identified as 1,3-dihydroxy-2-methylanthraquinone (1), physcion (2), 2-hydroxy-1,3-dimethoxyanthraquinone (3), 2,5-dihydroxy-1,3-dimethoxyanthraquinone (4) by means of chemical and spectroscopic analys...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410600921532
更新日期:2006-09-01 00:00:00
abstract::From the fruit of Pandanus tectorius Parkinson ex Du Roi, one new (1) and six known aldehyde compounds (2-7) were isolated by various chromatography methods. Based on their spectroscopic data, these compounds were identified as (Z)-4-hydroxy-3-(4-hydroxy-3-methylbut-2-en-1-yl) benzaldehyde (1), p-hydroxybenzaldehyde (...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.1003929
更新日期:2015-01-01 00:00:00
abstract::The aerial parts of Baccharis dracunculifolia (BdE) is used in the Brazilian folk medicine to treat inflammatory conditions. Here we examined the ability of free and liposomal BdE to modulate reactive oxygen species generation in human neutrophils in vitro and zymosan-induced acute joint inflammation in Wistar rats. W...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1448809
更新日期:2019-09-01 00:00:00
abstract::This article investigates the effect of microwaves on the amount of volatile compounds Achillea tenuifolia Lam with two methods, headspace single-drop microextraction and microwave-assisted headspace single-drop microextraction (MA-SDME), for the analysis of essential oil. Solvent selection, solvent volume, microwave ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2015.1079911
更新日期:2016-01-01 00:00:00
abstract::The essential oil of the 'resurrection plant' Myrothamnus moschatus (Baillon) Niedenzu endemic to Madagascar, where it is used in traditional medicine, was investigated for the first time for some biological activities. GC-FID and GC-MS analyses revealed trans-pinocarveol (35.6%), pinocarvone (20.0%), β-selinene (8.5%...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.665916
更新日期:2012-01-01 00:00:00
abstract::Immuno-therapies are gaining more importance to treat certain forms of cancer. The goal of therapies is to enhance person's own IgG, IgA, IgM, IgD, IgE and macrophages to combat with neoplastic cells hence the effectiveness of the immune system. Since, early civilization mushrooms are considered as potent food as well...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1466129
更新日期:2019-09-01 00:00:00
abstract::A new and efficient synthesis of a naturally occurring amide alkaloid, N-isobutyl-4,5-epoxy-2(E)-decenamide isolated from the roots of Piper nigrum has been described involving a total of nine steps. Octanal and 2-bromoacetic acid have been used as the starting materials. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.678349
更新日期:2013-01-01 00:00:00
abstract::A new furanodihydrobenzoxanthone, artomandin (1), together with three other flavonoid derivatives, artoindonesianin C, artonol B, and artochamin A, as well as β-sitosterol were isolated from the stem bark of Artocarpus kemando. The structures of these compounds were determined on the basis of spectral evidence. All of...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2010.534471
更新日期:2011-06-01 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
pub_type: 杂志文章
doi:10.1080/14786419.2020.1844691
更新日期:2020-11-23 00:00:00
abstract::A new triterpenic glucoside, lup-1,5,20(29)-trien-3-O-beta-D-glucopyranoside (4), along with three known phytoconstituents: n-octacosane, friedelin and beta-amyrin, has been isolated from the leaves of Clerodendrum inerme (L.) Gaertn. (Verbenaceae). Structure elucidation was carried out on the basis of chemical and ph...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410902975566
更新日期:2010-01-01 00:00:00
abstract::Using a bioactivity-guided fractionation procedure, five cembranolides, 11-epi-sinulariolide acetate (1), 11-dehydrosinulariolide (2), sinulariolide (3), dihydrosinularin (4), and 3,4:8,11-bisepoxy-7-acetoxycembra-15(17)-en-1,12-olide (5), along with two nucleosides, 2'-deoxyadenosine and thymidine, were isolated from...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786910310001617677
更新日期:2003-12-01 00:00:00
abstract::Tryptamine derivatives such as tryptamine and bacillamides were strong algicidal compounds promising in controlling harmful algae blooms, but their bioactivity and application researches were hindered by extremely low natural production rates. This study found an induced production of algicidal tryptamine derivatives ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2015.1005619
更新日期:2015-01-01 00:00:00
abstract::(+)-7-O-Methylisomiroestrol (MeI), a novel chromene, was discovered as a phytoestrogen in the Pueraria candollei var. mirifica (Airy Shaw & Suvat.) Niyomdham (PM) root having been used as an active agent against oestrogen depletion disorders. The identification of PM phytochemicals is crucial for the development of st...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1727473
更新日期:2020-02-20 00:00:00
abstract::A novel alkaloid named oleraciamide C (1), with six known compounds, hydroxydihydrobovolide (2), uracil (3), catechol (4), 4-aminophenol (5), vanillic acid (6) as well as 3-hydroxypyridine (7), were isolated from Portulaca oleracea L. Additionally, hydroxydihydrobovolide (2), 4-aminophenol (5), 3-hydroxypyridine (7) w...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1253081
更新日期:2017-04-01 00:00:00
abstract::Three species of the genus Homalium - e.g. Homalium nepalense, Homalium tomentosum and Homalium zeylanicum (Flacourtiaceae) - are recorded in India which are confined to the Eastern Ghat hill ranges. While H. zeylanicum is the IUCN red-listed medium-sized tree, the other two are endangered species of medicinal signifi...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.987142
更新日期:2015-01-01 00:00:00
abstract::Citrinin dimeric derivatives are bioactive polyketides previously reported from Penicillium, Aspergillus and Monascus fungi species. Due to the large distance between the stereogenic centers of the two monomer units, it was difficult to determine the absolute configuration of the whole molecule (1). In previous work, ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1493590
更新日期:2019-08-01 00:00:00
abstract::In this study, Moringa oleifera flower extract and a trypsin inhibitor (MoFTI) isolated from it were evaluated for anti-protozoal activity against Trypanosoma cruzi and cytotoxicity to mammalian cells. The presence of flavonoids was remarkable in the HPLC fingerprints of the extract at 254 and 360 nm. Amino acid seque...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1389932
更新日期:2018-12-01 00:00:00