Abstract:
:Ten compounds (1-10) were purified from the extract of lichens C. faveomaculata, and among these one new triterpenoid, cryptothecin A (1) was characterized through mass spectrometric and 2D NMR spectroscopic analyses. Some of the isolated compounds were assessed for their antimicrobial (1, 6, and 8) and cytotoxic activity (1, 4-5, and 7-9), but only weak inhibitory effects were observed.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Ngoc Tuan N,Kuo PC,Trung Hieu T,Tuong Vi LN,Tong Hung Q,Dunge LT,Duy Trinh N,Quang Trung N,Cuu Khoa N,Viet Hai H,Thang TDdoi
10.1080/14786419.2019.1648466subject
Has Abstractpub_date
2019-08-02 00:00:00pages
1-8eissn
1478-6419issn
1478-6427pub_type
杂志文章abstract::The current study focuses on the chemical composition, and evaluation of antioxidant and antibacterial activity of the aerial parts of Centaurea resupinata subsp. dufourii. Using different chromatographic methods nine compounds 1-9 were isolated. The structural identification of isolated compounds was achieved using s...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1715397
更新日期:2020-01-23 00:00:00
abstract::Two novel benzoquinones, uvarmicranones A (1) and B (2), along with 15 known compounds (3 - 17) were isolated from the stems of Uvaria micrantha (Annonaceae). Their structures were elucidated by analyses of NMR and high-resolution mass data. A plausible biosynthetic pathway of uvarmicranone A (1) via Diels-Alder cyclo...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1824221
更新日期:2020-09-22 00:00:00
abstract::The antiradical activity of the freshwater bryozoan Hyalinella punctata water extracts (two samples, seasonal collection) was evaluated by using electron paramagnetic resonance spectroscopy against hydroxyl (√OH), superoxide anion (√O2(- )), methoxy (√CH2OH), carbon-dioxide anion (√CO2(- )), nitric-oxide (√NO) and 2,2...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.921788
更新日期:2014-01-01 00:00:00
abstract::A new denudatine-type C20-diterpenoid alkaloid, designated as sinchianine (1), together with eight known diterpenoid alkaloids, 12-acetyl-12-epi-napelline (2), 12-epi-napelline (3), neoline (4), talatisamine (5), 14-O-acetylsenbusine A (6) and benzoylaconine (7), songorine (8) and aconitine (9), were isolated from the...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1410814
更新日期:2018-10-01 00:00:00
abstract::A novel oxime polyketide, maydisone (1), along with two known compounds, 7-hydroxy-2,5-dimethylchromone (2) and 2,5-dimethylbenzoic acid (3) were isolated from the cultures of Bipolaris maydis. Their structures were identified by the application of NMR and MS data analyses and comparison with previous reports. Compoun...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1765339
更新日期:2020-05-13 00:00:00
abstract::A megastigmane sulphoglycoside together with three phenolic compounds were isolated from the water-soluble fraction of the pericarps of Garcinia mangostana. The structure of the new compound was determined as 4-O-sulpho-β-d-glucopyranosyl abscisate (1) by spectroscopic data. Proanthocyanidin A2 (2) showed potent α-glu...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2015.1126261
更新日期:2016-07-01 00:00:00
abstract::Aedes aegypti is a primary vector of dengue, a mosquito-borne viral disease infecting 50-100 million people every year. Here, we biosynthesised mosquitocidal silver nanoparticles (AgNP) using the aqueous leaf extract of Crotalaria verrucosa. The green synthesis of AgNP was studied by UV-vis spectroscopy, SEM, EDX and ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2015.1074230
更新日期:2016-01-01 00:00:00
abstract::The ability of the endophytic fungus Umbelopsis dimorpha SWUKD3.1410 to transform the triterpene nigranoic acid (3, 4-secocycloarta-4(28), 24-(Z)-diene-3, 26-dioic acid; 1) was investigated. Co-culture of nigranoic acid with U. dimorpha SWUKD3.1410 yielded six major products, including a new triterpene (2) and 5 known...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1255891
更新日期:2017-06-01 00:00:00
abstract::From the seed and leaf extracts of Eryngium species, two new compounds were isolated, along with an aliphatic ketone and several known terpenoids reported from a member of Umbelliferae for the first time. Their structures were elucidated by chemical methods and spectroscopic analysis. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410701768303
更新日期:2010-03-01 00:00:00
abstract::Two saponins: scrokoelziside A (1), scrokoelziside B (2), one iridoid glycoside, eurostoside (3), and two flavonoids: nepitrin (4) and homoplantaginin (5), were isolated from the leaves of Scrophularia ningpoensis for the first time. Moreover, eight known compounds: cane sugar (6), harpagide (7), aucubin (8), 6-O-meth...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410802696247
更新日期:2009-01-01 00:00:00
abstract::A new flavonoid, dihydroglychalcone-A, was isolated from the leaves extract of Glycosmis chlorosperma in addition to two known sulphur-containing amides, dambullin and gerambullin. The structure of the new compound was assigned as 2'-hydroxy-4,6'-dimethoxy-3',4'-(2",2"-dimethylpyrano)dihydrochalcone. The extract of th...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/1057563031000122121
更新日期:2004-02-01 00:00:00
abstract::A sesquiterpenoid quinone, epi-ilimaquinone (1), and two sesquiterpene amino quinones, smenospongine (2) and glycinylilimaquinone (3), were isolated from the Fijian marine sponge Hippospongia sp. The structures of these compounds were determined by spectroscopic analysis. Compounds 1 and 3 were reported for the first ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.722086
更新日期:2013-01-01 00:00:00
abstract::In this work, we report a rapid and convenient HPLC-UV-DAD method for the isolation of δ-T3 on semi-preparative scale from two different vitamin E rich processed, commercially available products obtained from the fruits of Elaeis guineensis Jacq. (oil palm) and from the seeds of Bixa orellana L. (achiote tree). Chroma...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1320793
更新日期:2018-05-01 00:00:00
abstract::Four C-13, C-14 side chain modified 9(R)-hydroxy-1-deoxy-taxane analogues 15, 16, 19 and 22 were semi-synthesized from 1-deoxybaccatin VI. The in vitro antitumor activity of these compounds was evaluated against A549 and A2780 cell lines. The preliminary SAR analysis showed that introduction of oxygen-containing group...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1484459
更新日期:2019-12-01 00:00:00
abstract::A series of unexpected triterpenic C17-[5-methyl-1,3]-oxazoles along with targeted N-propargylamides was synthesized by an interaction of acid chlorides with propargylamine hydrochloride. We proposed that the formation of methyl oxazole passes through an alternative pathway by the participation of the terminal alkyne ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1744139
更新日期:2020-03-28 00:00:00
abstract::Six new compounds, colletobredins A-D (1-4) and colletomelleins A and B (5 and 6), along with 12 previously identified compounds, were isolated from the culture broth of Colletotrichum aotearoa BCRC 09F0161, a fungal endophyte residing in the leaves of an endemic Formosan plant Bredia oldhamii Hook. f. (Melastomatacea...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2015.1054285
更新日期:2016-01-01 00:00:00
abstract::Bioassay guided chemical investigation of the gorgonian Pacifigorgia senta led to the discovery of a new 19-oxygenated steroid, cholesta-5,24-diene-3β,7β,19-triol (1), as well as three known steroids (2-4). The structure of 1 was determined by extensive spectroscopic analysis, including NMR and MS spectra. All of the ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2015.1063055
更新日期:2016-06-01 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
pub_type: 杂志文章
doi:10.1080/1478641031000620682
更新日期:2004-10-01 00:00:00
abstract::Colletia paradoxa (Spreng.) Esc. (Rhamnaceae, Colletieae) is a medicinal plant, threatened with extinction in Brazil, presenting great morphological variability. Our objective is to investigate the phytochemical components, antioxidant capacity and antimycobacterial activity of different morphotypes of C. paradoxa in ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1598987
更新日期:2019-04-16 00:00:00
abstract::Essential oils hydrodistilled from the leaves and stem barks of Goniothalamus macrocalyx Ban., Goniothalamus albiflorus Ban. and Goniothalamus tamirensis Pierre ex Fin. & Gagnep. growing in Vietnam were analysed by gas chromatography (GC) and GC-coupled with mass spectrometry. α-Pinene (1.7-50.0%), β-pinene (tr-6.8%),...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.814051
更新日期:2013-01-01 00:00:00
abstract::This study describes the seasonal composition and the antibacterial, antioxidant and anticholinesterase activity of the essential oil from Eugenia brasiliensis leaves. Analysis by using GC allowed the identification of 40 compounds. It was observed that the monoterpenes varied more (42%) than the sesquiterpenes (14%),...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.958736
更新日期:2015-02-01 00:00:00
abstract::From a biologically active fraction of extract from the fungus Fomitopsis pinicola, a new lanostane triterpene was isolated, 3alpha-acetyloxylanosta-8,24-diene-21-ol (1), along with two known triterpenic acids, (2) and (3). The structures of the compounds were elucidated based on their spectral properties. [structure:...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410500520251
更新日期:2007-05-01 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 compound decomposed from ginkgolide B(GB) is discovered and identified by MS and UV spectrum. It is the dehydrate of GB, which was named as ginkgolide K before. Differently, it cannot exist independently, but only in equilibrium with GB. It is found first time that 3-hydroxy is active in some solvent. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410601130547
更新日期:2008-01-01 00:00:00
abstract::The use of natural products as a diet supplement is increasing worldwide but sometimes is not followed by adequate sanitary controls and analyses. Twenty samples of pills and capsules of lyophilised cyanobacteria (blue-green algae), commercialised in Italy as dietary supplements, were found positive at the Vibrio fisc...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410500410859
更新日期:2006-07-20 00:00:00
abstract::Chemical diversity is vital to antitubercular drug discovery as it ensures a novel bioactivity profile. Marine sponges have so far provided more than 1000 new bioactive molecules. Ethyl acetate extract of the marine sponge Dendrilla nigra on bioactivity-guided screening yielded three new compounds denigrins A-C, with ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.891112
更新日期:2014-01-01 00:00:00
abstract::To obtain more accessible oxidative stress inhibitors, a series of novel spin-labelled derivatives of 3-hydroxybutanolide (2a-d, 3a-d) with the natural active compound (kinsenoside) as the lead compound were designed, synthesised from the nitroxide free radical piperidine (pyrroline) and the main structural unit of ki...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.903477
更新日期:2014-01-01 00:00:00
abstract::Nine lupeol derivatives were synthesised and assayed in vitro for their antitumour activities against three human tumour cells lines, A549, LAC and HepG2. Of lupeol derivaties, six were new compounds, and five compounds against A549 cells, four compounds against HepG2 cells and three compounds against LAC cells were e...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1329729
更新日期:2018-01-01 00:00:00
abstract::The optimisation of nutritional requirements for dopamine (DA) synthesis by calcium alginate-entrapped mutant variant of Aspergillus oryzae EMS-6 using submerged fermentation technique was investigated. A total of 13 strains were isolated from soil. Isolate I-2 was selected as a better producer of DA and improved by e...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1233408
更新日期:2017-02-01 00:00:00
abstract::There has been growing interest in the research of flavonoids due to their potential antiviral activities. Recently, some natural flavonoids have shown potential inhibitory activity against zika virus NS3-NS2B protease. In order to accelerate the drug discovery efforts using flavonoids, a Monte Carlo simulation-based ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1413574
更新日期:2019-03-01 00:00:00