Abstract:
:The phytochemical investigation of the stem bark of Tinospora cordifolia Miers (Menispermaceae) has afforded four new compounds, named tinosporafuranol, tinosporafurandiol, tinosporaclerodanol, and tinosporaclerodanoid, along with beta-sitosterol, and their stereostructures have been elucidated correspondingly as 4-seco-cleroda-19-ol-13-furanoid, 4-seco-cleroda-6-en-18,19-diol-13-furanoid, cleroda-1(10)-en-6beta-ol and cleroda-1-one-2-en-11beta,15,16,18-tetraol-12,19-olide on the basis of spectral data analyses and chemical reactions.
journal_name
Nat Prod Resjournal_title
Natural product researchauthors
Ahmad F,Ali M,Alam Pdoi
10.1080/14786410802435679subject
Has Abstractpub_date
2010-06-01 00:00:00pages
926-34issue
10eissn
1478-6419issn
1478-6427pii
922401956journal_volume
24pub_type
杂志文章abstract::A new 1,4-phenanthraquinone was isolated from the roots of Menispermum dauricum. The structure was elucidated as 7-hydroxy-3,6-dimethoxy-1,4-phenanthraquinone on the basis of spectral evidence. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410310001620592
更新日期:2004-08-01 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::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::Two new anthraquinone malonylglucosides polygonins A and B were isolated from Polygonum cuspidatum along with seven known compounds. The structures of 1 and 2 were elucidated based on their spectroscopic data. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2011.578072
更新日期:2012-01-01 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::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
abstract::Phenolic acids, a sub-class of polyphenols, are widely studied. By contrary, 3,4-dihydroxyphenylacetic acid is scarcely studied. For this purpose, a series of 3,4-dihydroxyphenylacetic acid ester and amide derivatives/conjugates were synthesised for the first time. A systematic study has been performed to quantitative...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2017.1342090
更新日期:2018-06-01 00:00:00
abstract::The content of total polyphenols, chlorogenic, caffeic (CaA) and ferulic acids, and rutin, was investigated in plant organs of three introgression lines (IL7-3, IL10-1 and IL12-4) of Solanum pennellii in Solanum lycopersicum cv M82 and compared with that of cropped parental. Such study aims to evidence factors associa...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.704371
更新日期:2013-01-01 00:00:00
abstract::A new compound, jolynamine (1), was isolated from the marine brown alga Jolyna laminarioides collected from the coast of Karachi, Pakistan. In addition, four known compounds, namely saringosterol (2), loliolide (3), methyl-4-hydroxybenzoate (4) and propyl-4-hydroxybenzoate (5), were isolated for the first time from th...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2010.509722
更新日期:2011-05-01 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
pub_type: 杂志文章
doi:10.1080/14786419.2020.1844689
更新日期:2020-11-09 00:00:00
abstract::The methanolic extract of the aerial parts of Datura innoxia afforded a new withanolide, daturacin, the structure of which was elucidated as (20R, 22S)-21,24-epoxy-1,6-dioxo-14alpha-methoxy-5beta-witha-2,25(27)-dienolide (1) by an analysis of the spectroscopic data, including extensive NMR experiments. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410512331330620
更新日期:2005-09-01 00:00:00
abstract::Epicatechin (EC) is the most effective compound in Euonymus alatus (Thunb.)Sieb, and possesses a series of benefits, including anti-inflammatory, antioxidant, antiobesity and anticancer effects. In this study, we investigated the protective effects of EC in Acetaminophen(N-acetyl-p-aminophenol, APAP)-induced acute liv...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1503261
更新日期:2020-03-01 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::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::In our continuous search for cytotoxic compounds from the genus Zanthoxylum, chromatographic separation of the MeOH/CH2Cl2 (1:1) extract of Z. chalybeum yielded one new alkamide; 4-(isoprenyloxy)-3-methoxy-3,4-deoxymethylenedioxyfagaramide (1) and a known one; fagaramide (2). Similarly, from the MeOH/CH2Cl2 (1:1) extr...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2019.1587424
更新日期:2019-03-21 00:00:00
abstract::Two novel secondary metabolites, including one thujopsene-type sesquiterpene designated thujasutchin N (1) and one norlignan named thujasutchin O (2) were obtained from the ethanolic extract of the stems and roots of Thuja sutchuenensis. Among them, thujasutchin O (2) represents the first example of lignan sharing a u...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1836627
更新日期:2020-10-23 00:00:00
abstract::Plants, in their life cycle, are usually exposed to various kinds of non-biological stresses including heavy metals. One of these heavy metals is nickel which affects many physiological processes of plants. Studies have shown that the changes in planting conditions can affect the qualitative and quantitative features ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2014.913240
更新日期:2014-01-01 00:00:00
abstract::The essential oil of Cyclospermum leptophyllum (Pers.) Sprague ex Britton and P. Wilson syn. Apium leptophyllum (Pers.) F. Muell. Ex Benth., family Apiaceae (Umbellifereae), was analysed by GC and GC-MS. The essential oil showed the presence of thymohydroquinone dimethyl ether (50.7%), thymol methyl ether (11.2%), γ-t...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2010.487190
更新日期:2011-03-01 00:00:00
abstract::Mangrove plants are endowed with various biologically active compounds which have potent antibacterial and antioxidant properties. In present study, a bioactivity-guided fractionation for antibacterial and antioxidant active metabolites from the twigs of Avicennia officinalis collected from Kuala Selangor Nature Park,...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1538220
更新日期:2020-08-01 00:00:00
abstract::The search for bioactive compounds against diseases is imperative and the richness of the Amazon provides a large source to be explored. Current therapies for the treatment of parasitic infections have severe side effects and low efficacy, which makes the development of an effective chemotherapy extremely important. I...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2020.1715395
更新日期:2020-01-25 00:00:00
abstract::This study evaluates the presence, location and production source of tetrodotoxin (TTX) in two species of pufferfish, Diodon histrix and Arothron hispidus, common to Hawaiian waters. Organs from each fish were analysed for TTX and used to isolate bacteria for evaluation of possible TTX production. Comparative analyses...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410903003780
更新日期:2009-01-01 00:00:00
abstract::Chemical investigation of Penthorum chinense resulted in the isolation of two neolignans (1 and 2) together with two known compounds (3 and 4). The structures of compounds 1 and 2 were determined by interpretation of spectroscopic data, and absolute configurations were made based on electronic circular dichroism (ECD)...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1517261
更新日期:2020-06-01 00:00:00
abstract::Monoterpene glycosides have been isolated from the ethyl acetate soluble fraction of Indigofera hetrantha and their structures assigned to be 3,7-dimethyl-2(E),6-octadien-5-one-1-O-beta-D-6-O-acetylglucopyranoside (1) and 3,7-dimethyl-2(E), 6-octadien-5-one-1-O-[-beta-D-6''-O-acetylglucopyra-nosyl (1'' --> 6')-beta-D-...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410801980097
更新日期:2008-01-01 00:00:00
abstract::Three Ballota species, Ballota undulata, Ballota saxatilis and Ballota nigra ssp. foetida, were investigated for their cytotoxicity against two human cancer cells, hepatoma HepG2 cell line and breast cancer MCF-7 cell line, and for their antioxidant activity. The chemical composition of essential oils was studied by G...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2016.1185722
更新日期:2017-02-01 00:00:00
abstract::The mechanism of inhibition of jack bean and Bacillus pasteurii ureases was investigated by triacontanyl palmitate (1) which is a long-chain fatty ester and has been isolated from Symplocos racemosa Roxb. Lineweaver-Burk, Dixon plots, and their secondary replots showed that 1 is a non-competitive inhibitor of these en...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786410600906913
更新日期:2007-07-10 00:00:00
abstract::Spinacia oleracea L. (Spinach) is a leafy vegetable which is considered to have a high nutritional value. Flavonoids in spinach were reported to act as antimutagenic property. Rapid detection of these flavonoids in Spinach was achieved by using HPLC-ESI-QTOF-MS/MS. Thirty six compounds were tentatively identified base...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2018.1489395
更新日期:2019-08-01 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
pub_type: 杂志文章
doi:10.1080/14786410902940933
更新日期:2009-01-01 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
pub_type: 杂志文章
doi:10.1080/14786419.2015.1101104
更新日期:2016-09-01 00:00:00
abstract::A series of (E)-1-(4-alkyloxyphenyl)-3-(hydroxyphenyl)-prop-2-en-1-one have been successfully synthesised via Claisen-Schmidt condensation. The synthesised chalcone derivatives consisted of hydroxyl groups at either ortho, meta or para position and differed in the length of the alkyl groups, C (n) H(2) (n) (+1,) whe...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2010.502896
更新日期:2012-01-01 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