Studies on the chemical constituents of Phyllanthus emblica.

abstract：:Pressafonin A (1) and pressafonin B (2), two new Michelia monoterpenic esters, have been isolated from Michelia compressa (Maxim.) Sargent var. formosana Kanehira (Magnoliaceae), and their structures are determined on the basis of spectroscopic analysis. ...

journal_title：Natural product research

authors： Cheng MJ,Lo WL,Huang JC,Yeh YT,Hong ZL,Lu YC,Chang MS,Chen CY

更新日期：2010-04-01 00:00:00

abstract：:The ethanolic extract of the stems of Viburnum fordiae Hance showed insecticidal and α-glucosidase inhibitory activities and then was fractionated by bioactivity-guided fractionation to obtain a rare C13-norisoprenoid (1), together with a new phenolic glycoside (2), and seven known compounds, alangionoside C (3), pisu...

journal_title：Natural product research

authors： Shao JH,Chen J,Zhao CC,Shen J,Liu WY,Gu WY,Li KH

更新日期：2019-09-01 00:00:00

abstract：:A new monoterpenoid indole alkaloid, 10-methoxyakuammidine (1), together with four known alkaloids (2-5), were isolated from the stems and leaves of Ochrosia elliptica. The structure of 1 was elucidated by extensive spectroscopic methods and the known compounds were identified by comparisons with data reported in the ...

journal_title：Natural product research

authors： Chen AH,Liu QL,Ma YL,Jiang ZH,Tang JY,Liu YP,Chen GY,Fu YH,Xu W

更新日期：2017-07-01 00:00:00

abstract：:A new C20-diterpenoid alkaloid carmichaedine (1) and six known alkaloids (2-7) were isolated from the lateral roots of Aconitum carmichaeli. Their structures were established on the basis of extensive spectroscopic analyses. Compound 1 exhibited potent antibacterial activity against Bacillus subtilis with minimum inhi...

journal_title：Natural product research

authors： Yu J,Yin TP,Wang JP,Mei RF,Cai L,Ding ZT

更新日期：2017-01-01 00:00:00

abstract：:In this study, 12 compounds, which include a new flavanone 5-methoxy mundulin, were isolated from the leaves, stem bark and twigs of Mundulea sericea (Willd.) A. Chev. (Fabaceae; Papilionoideae). The structures of the compounds were identified based on spectral data analyses. The constituents of M. sericea also showed...

journal_title：Natural product research

authors： Mazimba O,Masesane IB,Majinda RR

更新日期：2012-01-01 00:00:00

abstract：:A new indole diterpene, named penicindopene A (1), together with seven known compounds (2 - 8), was isolated from the deep-sea fungus Penicillium sp. YPCMAC1. The structure of penicindopene A was elucidated by extensive spectroscopic analyses (1 D and 2 D NMR, and HRESIMS data), in addition to the ECD calculations for...

journal_title：Natural product research

authors： Liu L,Xu W,Li S,Chen M,Cheng Y,Yuan W,Cheng Z,Li Q

更新日期：2019-10-01 00:00:00

abstract：:The aqueous methanolic extracts of Melastoma malabathricum L. exhibited antibacterial activity when assayed against seven microorganisms by the agar diffusion method. Solvent fractionation afforded active chloroform and ethyl acetate fractions from the leaves and the flowers, respectively. A phytochemical study result...

journal_title：Natural product research

authors： Wong KC,Hag Ali DM,Boey PL

更新日期：2012-01-01 00:00:00

abstract：:A new diterpenoid glycoside, 14,15-dinor-labdan-13-one-8-O-alpha-L-arabinopyranoside (1), was isolated from Conyza blinii. The structure of this new arabinoside was elucidated on the basis of extensive NMR and HRMS spectroscopy. In addition, the presence of 3R-hydroxyoctadecanoic acid in C. blinii was reported for the...

journal_title：Natural product research

authors： Su Y,Chen L,Wang D,Chai X,Guo D

更新日期：2008-04-15 00:00:00

abstract：:Six compounds were isolated from the stems and leaves of Arachis hypogaea, including a new norsesquiterpene, arahyside A (1), and five known compounds, 4-(2-methoxyethyl)benzene-1,2-diol (2), (1(R,S),2(R,S))-1-phenylpropane-1,2-diol (3), tachioside (4), 1,3-benzenediol (5), demethylmedicarpin (6). Extensive spectrosco...

journal_title：Natural product research

authors： Jin WF,Luo ZH,Sun YP,Liu JS,Yu Y,Wang G,Wang GK

更新日期：2020-11-01 00:00:00

abstract：:Machaerium, in the family Fabaceae, predominantly is a genus of a Neotropical distribution of trees, shrubs, and lianas occurring from southern Mexico to Brazil and northern Argentina and as far as South America. Several Machaerium species are widely used in traditional medicine and are considered to have multiple med...

journal_title：Natural product research

authors： Amen YM,Marzouk AM,Zaghloul MG,Afifi MS

更新日期：2015-01-01 00:00:00

abstract：:The chemical composition of the essential oils obtained from the fresh leaves of Cinnamomum tamala Nees et Eberm. was determined by GC and GC-MS. The yield of the oil on a dry weight basis ranged from 1.2% to 3.9% (w/w). Phenyl propanoids constitute the major portion (88.9-95.0%) of the oils. Fifty-four compounds were...

journal_title：Natural product research

authors： Rana VS,Langoljam RD,Verdeguer M,Blázquez MA

更新日期：2012-01-01 00:00:00

abstract：:Two phytotoxic furan derivatives were isolated, together with the well-known fungal and plant phytotoxin tyrosol, from the culture filtrates of Stilbocrea macrostoma. This fungal pathogen isolated from Quercus brantii trees induced wood necrosis and decline symptoms on the host plant in Iran. The two furan derivatives...

journal_title：Natural product research

authors： Di Lecce R,Bashiri S,Masi M,Alioto D,Tuzi A,Abdollahzadeh J,Evidente A

更新日期：2020-10-05 00:00:00

abstract：:Okra, Abelmoschus esculentus L. (Moench), also known as Lady's Fingers, gombo, or bamje, is an annual plant belonging to the Malvaceae family. Traditional olistic medicine since centuries directly associates this plant and its parts to a beneficial health hypoglycemic effect. Since the abscisic acid (ABA) has been ass...

journal_title：Natural product research

authors： Daliu P,Annunziata G,Tenore GC,Santini A

更新日期：2020-01-01 00:00:00

abstract：:In the present study, evaluation of the antiproliferative activity of Pachypodium lamerei Drake leaves (family Apocyaceae) against human breast cancer cell lines MDA-MB-231 was done for the total methanolic extract, crude alkaloidal mixture and ursolic acid using the MTT colorimetric assay. The methanolic extract show...

journal_title：Natural product research

authors： Mina SA,Mohamed SA,Melek FR,Abd El-Khalik SM

更新日期：2020-05-01 00:00:00

abstract：:Chemical investigation of the Red Sea sponge Dragmacidon coccinea led to the isolation of a new nucleoside, dragmacidoside (1), along with eight known compounds: adenosine (2), inosine (3), deoxycytidine (4), methyl-α-d-glucopyranoside (5), clionasterol (6), stigmasterol (7), campesterol (8) and brassicasterol (9). Th...

journal_title：Natural product research

authors： Abou-Hussein DR,Badr JM,Youssef DT

更新日期：2014-01-01 00:00:00

abstract：:Tectona grandis Linn (Teak), is locally known as Sagwan, belongs to Lamiaceae family. It is one of the most valuable timber in the world, due to its beautiful surface and its resistance to termite and fungal damage. The main active ingredient compounds that are responsible for these action are tectoquinone, lapachol a...

journal_title：Natural product research

authors： Vyas P,Yadav DK,Khandelwal P

更新日期：2019-08-01 00:00:00

abstract：:This study investigated the in vitro anticancer potential of phytochemical constituents isolated from the methanolic extract of Eriocephalus africanus. One flavanone (hesperidin) and two flavones (luteolin and apigenin) were isolated for the first time from the plant using column chromatography. Standard MTT assay was...

journal_title：Natural product research

authors： Magura J,Moodley R,Maduray K,Mackraj I

更新日期：2020-03-25 00:00:00

abstract：:A new isoflavone glycoside, named 3'-hydroxytectorigenin-7-O-β-D-xylosyl-(1→6)-β-D-glucopyranoside (1) was isolated from the flowers of Pueraria montana var. lobata (Willd.) Sanjappa & Pradeep. The structure of compound 1 was characterised by HR-ESI-MS and NMR spectroscopic methods. In radical scavenging activity test...

journal_title：Natural product research

authors： Ma Y,Shang Y,Zhong Z,Zhang Y,Yang Y,Feng J,Wei Z

更新日期：2019-08-21 00:00:00

abstract：:The aims of the present study were to determine the antibacterial activity of bark extract of Cryptomeria japonica D. Don and to isolate potential antibacterial constituents. The results showed that the ethanolic extract of C. japonica bark possessed a good antibacterial activity. Nine compounds including seven diterp...

journal_title：Natural product research

authors： Li WH,Chang ST,Chang SC,Chang HT

更新日期：2008-01-01 00:00:00

abstract：:Cynomorium coccineum is a non-photosynthetic plant that grows in Mediterranean countries and that is amply used in the traditional medicine. The aim of this study was to extend previous studies on the chemical and biological properties of C. coccineum, evaluating the potential antiviral and antiproliferative activity ...

journal_title：Natural product research

authors： Vascellari S,Zucca P,Perra D,Serra A,Piras A,Rescigno A

更新日期：2019-10-17 00:00:00

abstract：:Plants mentioned in this study have numerous records in traditional Peruvian medicine being used in treatment of cancer and other diseases likely to be associated with oxidative stress. Amongst the eight plant species tested, only Dysphania ambrosioides exhibited combinatory antioxidant and anti-proliferative effect o...

journal_title：Natural product research

authors： Tauchen J,Huml L,Bortl L,Doskocil I,Jarosova V,Marsik P,Frankova A,Clavo Peralta ZM,Chuspe Zans ME,Havlik J,Lapcik O,Kokoska L

更新日期：2019-09-01 00:00:00

abstract：:Dunaliine A (1), a new amino diketone, has been isolated from the leaves of Desmos dunalii together with four known dihydrochalcones: 2',4-dihydroxy-4',6'-dimethoxy-3',5'-dimethyldihydrochalcone (2), 2',4-dihydroxy-4',6'-dimethoxydihydrochalcone (3), 2',4-dihydroxy-4',5',6'-trimethoxydihydrochalcone (4) and 2',4-dihyd...

journal_title：Natural product research

authors： Awang K,Abdullah Z,Mukhtar MR,Litaudon M,Jaafar FM,Hadi AH,Thomas NF

更新日期：2009-01-01 00:00:00

abstract：:Three alkaloids, (3-chloro-2-hydroxypropyl) trimethylammonium chloride (1), p-(acetylamino)-phenol (2) and 4,4'-diacetamidodiphenyl ether (3), were isolated from Reineckia carnea herba. Their structures were determined by detailed analysis of their 1D and 2D NMR spectra and MS. Compounds 1 and 3 were new natural produ...

journal_title：Natural product research

authors： Wang J,Han N,Wang Y,Wang Y,Liu Z,Wang Y,Yin J

更新日期：2014-01-01 00:00:00

abstract：:The chemical investigation of whole plants Piper terminaliflorum Tseng led to the isolation of one new furofuran lignan, 7-methoxyasarinin (1), along with three known amide alkaloids (2-4) as N-3,5-dimethoxy-4-hydroxycinnamoylpyrrole (2), dihydropipercide (3) and 1-[(2E,4E,9E)-10-(3,4-Methylenedioxyphenyl)-2,4,9-undec...

journal_title：Natural product research

authors： Liu T,Liang Q,Zhang XM,Huang SY,Xu WH

更新日期：2018-02-01 00:00:00

abstract：:Ginsenoside Re (G-Re) is a major ingredient of the ginseng bud. A novel and rapid method to isolate and purify G-Re from ginseng buds was established. The procedure involves solvent extraction of ginseng bud powder, then pre-purification with an active carbon column and purification by preparative HPLC (prep-HPLC). Ac...

journal_title：Natural product research

authors： Kuang P,Wang G,Yuan Q,Liang H

更新日期：2012-01-01 00:00:00

abstract：:The essential oils obtained by hydrodistillation from the leaves of Tabernaemontana catharinensis had their composition analysed by GC-MS. A total of 18 substances were identified, consisting of a complex mixture of sesquiterpenes (83.52%), monoterpenes (5.46%) and triterpenes (4.56%). The main components in the oil w...

journal_title：Natural product research

authors： Boligon AA,Schwanz TG,Piana M,Bandeira RV,Frohlich JK,de Brum TF,Zadra M,Athayde ML

更新日期：2013-01-01 00:00:00

abstract：:Synsepalum dulcifificum is an evergreen shrub native of tropical West Africa. It is very effective against a variety of diseases. However, the phytochemical investigation on this plant is limited till now. In our current study, seventeen compounds were isolated and identified from the ethyl acetate extract of the leav...

journal_title：Natural product research

authors： Wang J,Shao S,Huang R,Wu S

更新日期：2020-10-09 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

authors： Dharmaratne HR,Sakagami Y,Piyasena KG,Thevanesam V

更新日期：2013-01-01 00:00:00

abstract：:Known diketopiperazine WIN 64821 and its asymmetric stereoisomers (1-3) had been isolated from the culture broth of a marine gut fungus Aspergillus sp. DX4H. The planar and stereochemistry for new compounds were determined by a suite of techniques including mass, NMR and CD spectra together with Marfey's method. Their...

journal_title：Natural product research

authors： Xu J,Hu Q,Ding W,Wang P,Di Y

更新日期：2018-04-01 00:00:00

abstract：:A new thiodiketopiperzaine, tedanizaine A (1), together with six known ones, were isolated from the marine sponge Tedania sp. Their structures were determined by spectroscopic analyses. The absolute configuration of 1 was established by ECD calculation. Compound 1 was the second example of thiodiketopiperazine bearing...

journal_title：Natural product research

authors： Zhang H,Lai W,Guan ZB,Liao XJ,Zhao BX,Xu SH

更新日期：2020-04-01 00:00:00