Abstract:
:In situ generation of hydrogen iodide from cesium iodide/methanesulfonic acid was found to be an attractive reagent combination for the conversion of alkyl, allyl, and benzyl alcohols to their corresponding iodides under mild conditions. The method is compared with that using cesium iodide/p-toluenesulfonic acid or cesium iodide/aluminium chloride.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Khan KM,Zia-Ullah,Perveen S,Hayat S,Ali M,Voelter Wdoi
10.1080/14786410701766067subject
Has Abstractpub_date
2008-01-01 00:00:00pages
1264-69issue
14eissn
1478-6419issn
1478-6427pii
904355673journal_volume
22pub_type
杂志文章abstract::Glaucocalyxin A is a natural ent-Kaurane diterpenoid. It has been widely studied for some important biological activities like cytotoxicity and anti-tumour, anti-bacterial, anti-oxidative, anti-coagulative, anti-thrombotic, immune and anti-neuroinflammatory activities. The aim of the present article is to review the a...
journal_title:Natural product research
pub_type: 杂志文章,评审
doi:10.1080/14786419.2014.934235
更新日期:2014-01-01 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::Phebaclavin I, a novel 3-prenylated coumarin, was isolated from the aerial parts of Phebalium aff. tuberculosum (Rutaceae) together with five known related compounds, Phebaclavin A, B, D, G, H. The structure of phebaclavin I was established by spectroscopic methods. Several other known coumarins were obtained, includi...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410500087525
更新日期:2006-03-01 00:00:00
abstract::A new triterpenoid glucoside, leuctriterpencoside (1), along with two known compounds (2-3) were isolated from Leucas zeylanica. The structure of the new compound was elucidated using comprehensive spectroscopic methods. Compound 1 showed significant inhibitory activity against α-glucosidase (IC50 value of 0.85 ± 0.12...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1566820
更新日期:2020-07-01 00:00:00
abstract::Nine compounds were isolated from Nocardia sp. YIM 64630, and their structures were elucidated as 5'-O-acetyl-2'-deoxyuridine (1), 22E,24R-5α,6α-epoxyergosta-8(14),22-diene-3β,7α-diol (2), 22E,24R-5α,6α-epoxyergosta-8,22-diene-3β,7α-diol (3), 22E,24R-ergosta-7,22-diene-3β,5α,6β-triol (4), 5α,8α-epidioxyergosta-6,22-di...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.964713
更新日期:2015-01-01 00:00:00
abstract::A new denudatine-type C20-diterpenoid alkaloid, pubesine (1), along with seven known diterpenoid alkaloids, altaconitine (2), 14-benzoylaconine (3), spicatine A (4), 14-benzoylaconine-8-palmitate (5), 14-O-acetylsenbusine A (6), senbusine A (7) and 14-acetylneoline (8) were isolated from the whole plant of Aconitum so...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1198348
更新日期:2017-03-01 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::This work is an attempt to explore the anti-spermatogenic activity of Pistia stratiotes and to investigate it as a male contraceptive. The prepared extracts were screened for the presence of alkaloids, glycosides, steroids, flavonoids, saponin and phenolic compounds. To assess the anti-spermatogenic activity, mice wer...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.900772
更新日期:2014-01-01 00:00:00
abstract::Leaves of Kalanchoe pinnata are used worldwide for healing skin wounds. This study aimed to develop and compare two creams containing a leaf aqueous extract of K. pinnata (KP; 6%) and its major flavonoid [quercetin 3-O-α-L-arabinopyranosyl-(1→2)-α-L-rhamnopyranoside] (0.15%). Both creams were topically evaluated in a ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1817012
更新日期:2020-09-14 00:00:00
abstract::This study investigated the flavonoid constituents of a traditional Chinese medical plant Ziziphora clinopodioides Lam. by using ultra-performance liquid chromatography coupled with quadruple time-of-flight mass spectrometry and screened the active components in regulating autophagy.Normal rat kidney (NRK) cells trans...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1452002
更新日期:2019-09-01 00:00:00
abstract::Leishmaniasis is caused by parasites of the genus Leishmania. Recent reports about leishmaniasis show a few number of drugs available, indicating the necessity of new drugs. In this study, the ethanol extract and fractions of Pityrogramma calomelanos (L.) link. (Pteridaceae) were assayed to verify the cytotoxicity and...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.686911
更新日期:2013-01-01 00:00:00
abstract::This present study was designed to isolate the compounds of Memecylon edule. The chemical compounds were purified by chromatographic methods and their structures were established on the basis of spectroscopic analyses (UV, MS and NMR). The major isolated compounds were tested for anti-inflammatory activity. The methan...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1253074
更新日期:2017-06-01 00:00:00
abstract::Two new eremophilenolides, ligushicins A (1) and B (2), and two known compounds including β-sitosterol and ursolic acid were isolated from Ligulariopsis shichuana. The structures of new compounds were established on the basis of 1D and 2D NMR data and HRESIMS data interpretation. The absolute configuration of new comp...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1419240
更新日期:2019-05-01 00:00:00
abstract::The ethanolic extract of the bulbs of Fritillaria imperialis was subjected to fractionation by solvent-solvent extraction. The nonpolar fraction showed inhibitory activity against prolyl endopeptidase (PEP) (EC.3.4.21.26), a large intracellular enzyme that preferentially hydrolyze proline-containing oligopeptidase at ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410310001643885
更新日期:2005-01-01 00:00:00
abstract::Resinous exudate obtained from the aerial parts of Adesmia boronioides Hook.f. were evaluated to determine anti-phytopathogenic effects. Briefly, resinous exudate was obtained by dipping fresh plant material in dichloromethane; chemical composition was determined by GC-MS; and minimum inhibitory concentration (MIC) an...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1648465
更新日期:2019-08-06 00:00:00
abstract::Timosaponin AIII (TAIII) exhibits extensive pharmacological activities and has been reported as a potent antitumour agent for various human cancers. In the present study, a potential industrial process for producing TAIII that involves biotransformation directly in the crude extract liquid of rhizoma anemarrhenae (RA)...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1169416
更新日期:2016-10-01 00:00:00
abstract::An actinomycete strain 200-09, isolated from a soil sample collected from the coast of Hawaii, USA, was identified as Streptomyces antibioticus on the basis of its morphological, physiological and biochemical characteristics as well as 16S rDNA analysis. A new antimycin-type antibiotic, kitamycin C (1), together with ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1295240
更新日期:2017-08-01 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::In Brazilian folk medicine, Protium heptaphyllum is used to treat inflammatory conditions and to hasten wound repair. This paper aims to investigate the chemical composition and the in vitro antibacterial effects of the essential oils (EOs) obtained from P. heptaphyllum leaves and ripe and unripe fruits against a repr...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1536659
更新日期:2020-08-01 00:00:00
abstract::Three anthraquinones, Cdc25B phosphatase inhibitors, were isolated from the methanolic extract of the roots of Polygonum multiflorum Thunb. (Polygonaceae). Anthraquinones, physcion (1), emodin (2), and questin (3), inhibited the enzymatic activity of Cdc25B phosphatase with IC(50) values of 62.5, 30, and 34 microg mL(...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410601012265
更新日期:2007-05-20 00:00:00
abstract::The ethanolic extract of the leaves of Eriobotrya japonica exhibited inhibitory activity against phosphodiesterase-4D (PDE4D), which is a therapeutic target of inflammatory disease. Subsequent bioassay-guided fractionation led to the isolation of a new triterpene (1), together with seven known triterpenoids, methyl co...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1300796
更新日期:2017-12-01 00:00:00
abstract::The chemical composition of the essential oil (EO) obtained from the aerial parts of Rydingia michauxii (Briq.) Scheen & V.A. Albert was analysed by gas chromatography and gas chromatography/mass spectrometry (GC/MS). Eighty components were identified in the oil with caryophyllene oxide (20.1%), trans-verbenol (10.2%)...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1343321
更新日期:2018-01-01 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
pub_type: 杂志文章
doi:10.1080/14786419.2019.1634712
更新日期:2019-06-27 00:00:00
abstract::Investigation of the roots of Lotus polyphyllos Clarke resulted in the isolation of two new isoflavone derivatives; 4'-O-methylerythrinin C (3) and 4'-O-methyl-2''-hydroxydihydroalpinumisoflavone (4). In addition, the three known isoflavone derivatives 4'-O-methylalpinumisoflavone (1) lupinalbin F (5), 4',7-dimethoxy-...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410500364627
更新日期:2006-08-01 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::EU and Italian laws dealing for the presence of antibiotics or, more in general, drags in food established limits for different kinds of food. Suitable rules exist about the medical treatment of cattle in relation to the production of milk and meat. The adoption of a procedure to check the respect of the law limits is...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1392951
更新日期:2018-07-01 00:00:00
abstract::A new cytisine-type alkaloid, along with five known alkaloids was obtained from the seeds of Sophora alopecuroides. Their structures were determined to be (-)-N-(2'-hydroxy-3',5'-di-tert-butyl-toluene)-cytisine (1), (-)-lupanine (2), (+)-matrine (3), (+)-sophoramine (4), (+)-lehmannine (5) and (-)-sophocarpine (6). Th...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1824226
更新日期:2020-09-23 00:00:00
abstract::Fusarium graminearum Schw. is associated with diseases in seeds and seedlings, mainly in maize, and causes damage to crops and food production. We determined the chemical compositions of essential oils from Pogostemon cablin (Blanco) Benth and Baccharis dracunculifolia DC., and evaluated their antioxidant and antifung...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1802267
更新日期:2020-08-06 00:00:00
abstract::Besides the chemotaxonomic value, nowadays determination of biodiversity and chemical variability has a commercial impact. The exact identity of raw material and constituents of botanical products, such as food supplements or herbal remedies, is a very important argument, being the real prerequisite for quality contro...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.852546
更新日期:2014-01-01 00:00:00
abstract::Specimens of the cosmopolitan sea hare Aplysia parvula, collected in the Tsistsikamma National Park on the south-east coast of South Africa yielded the new dibromo-C15-acetogenin, (3Z)-bromofucin (1). Standard spectroscopic methods were used to establish the structure of this compound. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410412331271960
更新日期:2005-07-01 00:00:00