An isoindole alkaloid from Portulaca oleracea L.

abstract：:A novel tetrahydroxypyrrolizidine alkaloid (6) was obtained from rosmarinine degradation in 23% yield (isolated from Senecio callosas). ...

journal_title：Natural product research

authors： Nieto-Alvarez DA,Calderón JS,Mancilla T

更新日期：2003-01-01 00:00:00

abstract：:The antitumour activity of the hydroalcoholic extract of the leaf (PCL) and stem bark (PCB) of Prosopis cineraria (L.) in Swiss albino mice was evaluated against an Ehrlich ascites carcinoma (EAC) tumour model. The activity was assessed using survival time, peritoneal cells, haematological studies, lipid peroxidation,...

journal_title：Natural product research

authors： Robertson S,Narayanan N,Raj Kapoor B

更新日期：2011-04-01 00:00:00

abstract：:One new tirucallane-type nortriterpenoid Nortirucallane A (1), together with Chrysoeriol (2) and Isorhamnetin (3), was isolated from the methylene chloride part of Lonicerae japonicae flos. Their structures were elucidated by the detailed analysis of comprehensive spectroscopic data. Compound 3 was isolated from the g...

journal_title：Natural product research

authors： Wang X,Zhang J,Li YQ,Du BX,Sun QH,Cao YJ,Jiang HQ,Liu YH,Zhou HL,Rong R

更新日期：2017-10-01 00:00:00

abstract：:The chemical composition of the essential oils isolated from the aerial parts of Anthemis arvensis L. subsp. arvensis, Anthemis cretica subsp. messanensis (Brullo) Giardina & Raimondo and from flowers and leaves of Anthemis cretica subsp. columnae (Ten.) Frezén were determinated by GC-FID and GC-MS analyses. Torreyol ...

journal_title：Natural product research

authors： Riccobono L,Maggio A,Bruno M,Spadaro V,Raimondo FM

更新日期：2017-12-01 00:00:00

abstract：:This study describes the in vitro inhibition of protein denaturation of extract/fractions of Withania somnifera and isolated withanolides including 20β hydroxy-1-oxo(22R)-witha-2,5,24 trienolide (1), (20R,22R-14α,20α)-dihydroxy-1-oxowitha-2,5,16,24 tetraenolide (2). The results showed that the extract/fractions of the...

journal_title：Natural product research

authors： Khan MA,Khan H,Rauf A,Ben Hadda T

更新日期：2015-01-01 00:00:00

abstract：:Three new flavonol glycosides (1-3), hippophins K-M, were isolated from the seed residue of Hippophae rhamnoides subsp. sinensis. The chemical structures of these three new compounds were identified by 1D, 2D NMR, mass spectroscopy and high resolution electrospray ionization mass spectrometry spectroscopic data and by...

journal_title：Natural product research

authors： Chen C,Gao W,Ou-Yang DW,Zhang J,Kong DY

更新日期：2014-01-01 00:00:00

abstract：:The volatile components of Tuber liyuanum were determined by HS-SPME with GC-MS for the first time. The effects of different fibre coating, extraction time, extraction temperature and sample amount were studied to get optimal extraction conditions. The optimal conditions were SPME fibre of Carboxen/PDMS, extraction ti...

journal_title：Natural product research

authors： Liu C,Li Y

更新日期：2017-04-01 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：:To search for anti-diabetic and insulin-sensitising natural products, the effect on adipocyte differentiation was investigated by assessing fat accumulation in 3T3-L1 preadipocytes using Oil Red O staining. Fractionation and separation of n-hexane and CHCl₃ fractions of Morinda officinalis (Rubiaceae) using several ch...

journal_title：Natural product research

authors： Liu Q,Kim SB,Ahn JH,Hwang BY,Kim SY,Lee MK

更新日期：2012-01-01 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

authors： Huang D,Dong Z,Sun L,Chen W,Sun L

更新日期：2020-06-01 00:00:00

abstract：:Morus nigra, popularly known as mulberry, has been traditionally used as anti-diabetic herbal medication. This study focused on hexane fraction from Brazilian M. nigra leaves (Hex-Mn) effects on digestion and absorption of carbohydrate in diabetic mice. The high-performance liquid chromatography (HPLC) analysis was pe...

journal_title：Natural product research

authors： Silva DHAD,Barbosa HM,Beltrão RLA,Silva CFO,Moura CA,Castro RN,Almeida JRGDS,Gomes DA,Lira EC

更新日期：2020-02-24 00:00:00

abstract：:Headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography (GC-FID) was explored to determine the fingerprinting characteristic of Zingiber zerumbet L. volatiles to differentiate between different ginger species. The effect of different fibers [polydimethylsiloxane (PDMS, 7 μm), polyacrylate (PA, ...

journal_title：Natural product research

authors： Bhavya ML,Ravi R,Madhava Naidu M

更新日期：2019-07-22 00:00:00

abstract：:The iridoidic composition of Stachys glutinosa L. was examined in comparison with the results obtained in the phytochemical studies on S. corsica Pers. The presence of the known harpagide and acetyl-harpagide were showed together with that of a new di-glycosidic iridoid. The structure of this new compound, the 5-allos...

journal_title：Natural product research

authors： Serrilli AM,Ramunno A,Piccioni F,Serafini M,Ballero M,Bianco A

更新日期：2006-05-20 00:00:00

abstract：:The natural product lupeol 1 was isolated from aerial parts of Vernonia scorpioides with satisfactory yield, which made it viable to be used as starting material in semisynthetic approach. Ten lupeol derivatives 2-11 were prepared by classical procedures. Including, five new esters derivatives 7-11, which were obtaine...

journal_title：Natural product research

authors： Machado VR,Sandjo LP,Pinheiro GL,Moraes MH,Steindel M,Pizzolatti MG,Biavatti MW

更新日期：2018-02-01 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

authors： Martins RC,Lopes VV,Valentão P,Carvalho JC,Isabel P,Amaral MT,Batista MT,Andrade PB,Silva BM

更新日期：2008-01-01 00:00:00

abstract：:The fungus showing homology with Nodulisporium by 28S ribosomal gene sequencing, which has been discovered as an endophyte on medicinal plant Nothapodytes foetida, was found to produce 45 and 5.5 microg of camptothecin (CPT) per gram of mycelia at bioreactor and at shake flask, respectively, which was further quantifi...

journal_title：Natural product research

authors： Rehman S,Shawl AS,Kour A,Sultan P,Ahmad K,Khajuria R,Qazi GN

更新日期：2009-01-01 00:00:00

abstract：:Neuroprotection under conditions of oxygen stress of two C21 steroidal glycosides, cynsaccatol Q (1) and saccatol K (2), isolated from Cynanchum auriculatum Royle ex Wight, and their potential mechanisms were studied using the model of H2O2-induced damage on PC12 cells in this paper. Experiments showed that compounds ...

journal_title：Natural product research

authors： Zhang M,Wang D,Li B

更新日期：2019-07-02 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

authors： Tan BX,Yang L,Huang YY,Chen YY,Peng GT,Yu S,Wu YN,Luo HB,He XX

更新日期：2017-12-01 00:00:00

abstract：:Herein we report the regioselective synthesis of podophyllotoxin-Glycosyl triazole hybrids catalysed by Ag(I)-N-heterocyclic carbene (Ag(I)-NHC) in a short reaction time (∼30 min) at ambient conditions. In principle, it is the first report of Click alkyne-azide cycloaddition catalysed by Ag(I)-NHC catalyst and moreove...

journal_title：Natural product research

authors： Nerella S,Kankala S,Gavaji B

更新日期：2021-01-01 00:00:00

abstract：:Continued investigation of the marine alga Laurencia claviformis has led to the isolation of pacifenol, a halogenated sesquiterpene as the major metabolite. The microbial transformation of pacifenol is reported. It was cultivated with a marine strain of Penicillium brevicompactum yielding a new compound. The structure...

journal_title：Natural product research

authors： San-Martín A,Rovirosa J,Astudillo L,Sepúlveda B,Ruiz D,San-Martín C

更新日期：2008-12-01 00:00:00

abstract：:Terminalia bellerica has been used as a traditional medicine in a variety of ailments including anaemia, asthma, cancer, inflammation, rheumatism and hypertension. In this study, the free radical scavenging and antioxidant activities of methanol extract (ME) and its different solvent fractions (namely hexane (HE), eth...

journal_title：Natural product research

authors： Nampoothiri SV,Binil Raj SS,Prathapan A,Abhilash PA,Arumughan C,Sundaresan A

更新日期：2011-02-01 00:00:00

abstract：:New analogues of a long-chain secondary alcohol (1) and laserine (2) were isolated from the flowers of Tamarix hampeana L. The isolated compounds were identified using 1D and 2D NMR, LCMS/APCI, and chemical methods. Laserine was isolated for the first time from T. hampeana L. ...

journal_title：Natural product research

authors： Aykac A,Akgül Y

更新日期：2010-01-01 00:00:00

abstract：:Continuing with our study characterising Senecio nutans Sch. Bip., we have isolated and identified a simple coumarin, scopoletin, that could be relevant for the biological properties of the species related with the ancestral medical uses. This is the first report of scopoletin from S. nutans. In addition, the extract ...

journal_title：Natural product research

authors： Parra C,Soto E,León G,Salas CO,Heinrich M,Echiburú-Chau C

更新日期：2018-03-01 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

authors： Mahapatra AK,Pani SS,Sahoo AK

更新日期：2015-01-01 00:00:00

abstract：:Thirteen phenones were obtained from the 70% ethanol extract of Paeonia suffruticosa Andrews. Their structures were determined on the basis of chemical methods and spectral data. Among them, compound 1 was identified as a new compound, and compounds 5 and 13 were obtained from genus Paeonia for the first time. The inh...

journal_title：Natural product research

authors： Ding L,Zuo Q,Li D,Feng X,Gao X,Zhao F,Qiu F

更新日期：2017-02-01 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

authors： Lu L,Liu Y,Ding Y,Hou J,Zhang Y,Xue H,Zhang T

更新日期：2016-10-01 00:00:00

abstract：:A new sesquiterpenoid, malayscaphiol (1), and three known compounds, lupeol (2), lupenone (3) and stigmasterol (4), were isolated from the methanolic extract of the stem bark of Scaphium macropodum. The structures of the isolated compounds were determined using several spectroscopic methods, including UV-vis, FT-IR, 1...

journal_title：Natural product research

authors： Al Muqarrabun LM,Ahmat N,Aris SR,Shamsulrijal N,Baharum SN,Ahmad R,Rosandy AR,Suratman MN,Takayama H

更新日期：2014-01-01 00:00:00

abstract：:Formulations of traditional medicines are usually made up of a complex mixture of herbs. However, effective quality control methods in order to select materials of the right quality are lacking. 'Amukkara choornam' is a polyherbal Siddha formulation used for gastritis, spleen enlargement, leucorrhoea, hiccups, anaemia...

journal_title：Natural product research

authors： Patra KC,Singh B,Pareta S,Kumar KJ

更新日期：2010-12-01 00:00:00

abstract：:Fruits of different Sorbus L. species have been traditionally used in food production and in the treatment of various ailments. Besides common antioxidant active phytochemicals such as ascorbic acid, tocopherols and carotenoids, fruits are rich in phenolic compounds that are of particular interest. In this study, prof...

journal_title：Natural product research

authors： Raudonis R,Raudonė L,Gaivelytė K,Viškelis P,Janulis V

更新日期：2014-01-01 00:00:00

abstract：:This study is designed to examine the chemical composition of the essential oil obtained from Buddleja thyrsoides Lam leaves from south Brazil. Gas chromatography/mass spectrometry analysis resulted in the detection of 12 components, representing 91.4% of the total oil composition. Germacrene D (27.16%), 1,10-di-epi-C...

journal_title：Natural product research

authors： Mahlke JD,Boligon AA,Machado MM,Athayde ML

更新日期：2013-01-01 00:00:00