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You searched for: Subject chemical structure Remove constraint Subject: chemical structure Subject term lignans Remove constraint Subject term: lignans
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1. (+)-Episesaminone, a Sesamum indicum furofuran lignan. Isolation and hemisynthesis

Author:
Marchand, P.A.; Kato, M.J.; Lewis, N.G.
Source:
Journal of natural products 1997 v.60 no.11 pp. 1189-1192
ISSN:
0163-3864
Subject:
Sesamum indicum; seeds; furans; lignans; spectral analysis; chemical structure; biosynthesis; biochemical pathways; chemical reactions; chemical constituents of plants
DOI:
10.1021/np9702953

2. 10-Demethoxystegane, a new lignan from Steganotaenia araliacea

Author:
Meragelman, K.M.; McKee, T.C.; Boyd, M.R.
Source:
Journal of natural products 2001 v.64 no.11 pp. 1480-1482
ISSN:
0163-3864
Subject:
Apiaceae; lignans; lactones; spectral analysis; chemical structure; antineoplastic agents; humans; ovarian diseases; chemical constituents of plants; Tanzania
DOI:
10.1021/np010248h
PubMed:
11720541

3. 5-Methoxyjusticidin A, a new arylnaphthalene lignan from Protium unifoliolatum

Author:
Siani, A.C.; Zoghbi, M. das G.B.; Wolter, E.L.A.; Vencato, I.
Source:
Journal of natural products 1998 v.61 no.6 pp. 796-797
ISSN:
0163-3864
Subject:
Burseraceae; medicinal plants; wood; naphthalene; lignans; spectral analysis; chemical structure; chemical constituents of plants; Brazil
DOI:
10.1021/np9702291
PubMed:
9644067

4. 6-Methoxypodophyllotoxin-7-O-n-hexanoate, a new aryltetralin lignan ester from seeds of Linum flavum

Author:
Klaes, Michael; Ellendorff, Therese; Schmidt, Thomas J.
Source:
Planta medica 2010 v.76 no.7 pp. 719-721
ISSN:
0032-0943
Subject:
Linum flavum; seeds; chemical constituents of plants; lignans; esters; spectral analysis; chemical structure; plant extracts
DOI:
10.1055/s-0029-1240674
PubMed:
19960414

5. Abscisic acid related compounds and lignans in prunes (Prunus domestica L.) and their oxygen radical absorbance capacity (ORAC)

Author:
Kikuzaki, H.; Kayano, S.; Fukutsuka, N.; Aoki, A.; Kasamatsu, K.; Yamasaki, Y.; Mitani, T.; Nakatani, N.
Source:
Journal of agricultural and food chemistry 2004 v.52 no.2 pp. 344-349
ISSN:
0021-8561
Subject:
prunes; plant extracts; abscisic acid; lignans; glucosides; chemical structure; antioxidant activity; free radicals; antioxidants
Abstract:
... Four new abscisic acid related compounds (1-4), together with (+)-abscisic acid (5), (+)-β-D-glucopyranosyl abscisate (6), (6S,9R)-roseoside (7), and two lignan glucosides ((+)-pinoresinol mono-β-D-glucopyranoside (8) and 3-(β-D-glucopyranosyloxymethyl)-2- (4-hydroxy-3-methoxyphenyl)-5-(3-hydroxypropyl)-7-methoxy-(2R,3S)-dihydrobenzofuran (9)) were isolated from the antioxidative ethanol extract o ...
DOI:
10.1021/jf034954v

6. Absolute configuration of (+)-pinoresinol 4-O-[6"-O-galloyl]-β-d-glucopyranoside, macarangiosides E, and F isolated from the leaves of Macaranga tanarius

Author:
Matsunami, Katsuyoshi; Otsuka, Hideaki; Kondo, Kazunari; Shinzato, Takakazu; Kawahata, Masatoshi; Yamaguchi, Kentaro; Takeda, Yoshio
Source:
Phytochemistry 2009 v.70 no.10 pp. 1277-1285
ISSN:
0031-9422
Subject:
Macaranga tanarius; lignans; glucosides; chemical constituents of plants; chemical structure; spectral analysis; stereochemistry; antioxidant activity; Japan
Abstract:
... A lignan glucoside, (+)-pinoresinol 4-O-[6"-O-galloyl]-β-d-glucopyranoside (1), and two megastigmane glucosides, named macarangiosides E and F (2, 3), together with 15 known compounds (4-18) were isolated from leaves of Macaranga tanarius (L.) Müll.-Arg. (Euphorbiaceae). Their structures were elucidated by spectroscopic and chemical analyses. In addition, the absolute stereochemistry of macarangi ...
DOI:
10.1016/j.phytochem.2009.07.020

7. Agastinol and agastenol, novel lignans from Agastache rugosa and their evaluation in an apoptosis inhibition assay

Author:
Lee, C.H.; Kim, H.; Kho, Y.H.
Source:
Journal of natural products 2002 v.65 no.3 pp. 414-416
ISSN:
0163-3864
Subject:
Agastache; medicinal plants; lignans; spectral analysis; chemical structure; apoptosis; leukemia; cell lines; chemical constituents of plants; South Korea
DOI:
10.1021/np010425e
PubMed:
11908994

8. Aglacins A-D, first representatives of a new class of aryltetralin cyclic ether lignans from Aglaia cordata

Author:
Wang, B.G.; Ebel, R.; Nugroho, B.W.; Prijono, D.; Frank, W.; Steube, K.G.; Hao, X.J.; Proksch, P.
Source:
Journal of natural products 2001 v.64 no.12 pp. 1521-1526
ISSN:
0163-3864
Subject:
Aglaia; stems; bark; lignans; ethers; metabolites; spectral analysis; chemical structure; chemical constituents of plants; Indonesia
DOI:
10.1021/np0102962
PubMed:
11754603

9. Alkyl and phenylalkyl anacardic acids from Knema elegans seed oil

Author:
Spencer, G.F.; Tjarks, L.W.; Kleiman, R.
Source:
Journal of natural products 1980 v.43 no.6 pp. 724-730
ISSN:
0163-3864
Subject:
myristic acid; fatty acid composition; seed oils; Myristicaceae; lignans; resorcinols; chemical structure; salicylic acids
DOI:
10.1021/np50012a005
PubMed:
20707395

10. Americanin, a bioactive dibenzylbutyrolactone lignan, from the seeds of Centaurea americana

Author:
Shoeb, M.; MacManus, S.M.; Kumarasamy, Y.; Jaspars, M.; Nahar, L.; Thoo-Lin, P.K.; Nazemiyeh, H.; Sarker, S.D.
Source:
Phytochemistry 2006 v.67 no.21 pp. 2370-2375
ISSN:
0031-9422
Subject:
Centaurea; seeds; Artemia; chemotaxonomy; plant extracts; dioxins; toxicity testing; lignans; spectral analysis; antioxidant activity; plant taxonomy; chemical structure
Abstract:
... The reversed-phase preparative HPLC analysis of the methanol (MeOH) extract of the seeds of Centaurea americana afforded a dibenzylbutyrolactone lignan, 3"-O-caffeoyl arctiin (named americanin), together with five known lignans, arctiin, arctigenin, matairesinol, matairesinoside and lappaol A, and two known phytoecdysteroids, 20-hydroxyecdysone and makisterone A. While the structures of the known ...
DOI:
10.1016/j.phytochem.2006.08.012
PubMed:
16996096

11. Analysis and identification of lignans in Phyllanthus urinaria by HPLC-SPE-NMR

Author:
Wang, C.Y.; Lee, S.S.
Source:
Phytochemical analysis 2005 v.16 no.2 pp. 120-126
ISSN:
0958-0344
Subject:
Phyllanthus urinaria; plant extracts; phytochemicals; lignans; chemical structure; chemical analysis; reversed-phase high performance liquid chromatography; nuclear magnetic resonance spectroscopy
Abstract:
... HPLC-SPE-NMR has been applied to the analysis of a number of structurally similar lignans present in Phyllanthus urinaria. A reversed-phase HPLC system, using a C8 column eluted with tetrahydrofuran-water-methanol and detected at 225 nm was developed that gave good resolution for seven lignans from Phyllanthus urinaria. Coupling of this system with SPE-NMR provided clean 1H-NMR spectra for nine li ...
DOI:
10.1002/pca.830
PubMed:
15881120

12. Anti-HIV lignans from Justicia procumbens

Author:
Xin-Ya XU; Dong-Ying WANG; Chuen-Fai KU; Yang ZHAO; Han CHENG; Kang-Lun LIU; Li-Jun RONG; Hong-Jie ZHANG
Source:
Chinese journal of natural medicines 2019 v.17 no.12 pp. 945-952
ISSN:
1875-5364
Subject:
Human immunodeficiency virus 1; Justicia procumbens; Oriental traditional medicine; acetates; antiretroviral properties; chemical structure; cytotoxicity; inhibitory concentration 50; lignans; nuclear magnetic resonance spectroscopy; spectral analysis
Abstract:
... Twenty-one lignans including three new ones (1, 2 and 13) were isolated from Justicia procumbens. The chemical structures of the new lignans were determined by spectroscopic means including 1D and 2D NMR analysis. These compounds were evaluated for their cytotoxic and anti-HIV activities. The new secoisolariciresinol dimethyl ether acetate (13) exhibited anti-HIV-1 activity with an IC50 value of 5 ...
DOI:
10.1016/S1875-5364(19)30117-7

13. Anti-complement activity of norlignans and terpenes from the stem bark of Styrax japonica

Author:
Min, B.S.; Oh, S.R.; Ahn, K.S.; Kim, J.H.; Lee, J.; Kim, D.Y.; Kim, E.H.; Lee, H.K.
Source:
Planta medica 2004 v.70 no.12 pp. 1210-1215
ISSN:
0032-0943
Subject:
terpenoids; complement; human health; lignans; spectral analysis; hemolysis; medicinal properties; stereochemistry; chemical structure; Styrax japonicus; South Korea
DOI:
10.1055/s-2004-835853
PubMed:
15643559

14. Anti-inflammatory Neolignans from Piper kadsura

Author:
Lin, L.C.; Shen, C.C.; Shen, Y.C.; Tsai, T.H.
Source:
Journal of natural products 2006 v.69 no.5 pp. 842-844
ISSN:
0163-3864
Subject:
anti-inflammatory activity; biosynthesis; humans; reactive oxygen species; tyramine; plant extracts; medicinal plants; human health; neutrophils; cultured cells; lignans; spectral analysis; antioxidant activity; chemical structure; Oriental traditional medicine; Piper; Taiwan
DOI:
10.1021/np0505521
PubMed:
16724856

15. Anti-inflammatory and immunosuppressive compounds from Tripterygium wilfordii

Author:
Ma, J.; Dey, M.; Yang, H.; Poulev, A.; Pouleva, R.; Dorn, R.; Lipsky, P.E.; Kennelly, E.J.; Raskin, I.
Source:
Phytochemistry 2007 v.68 no.8 pp. 1172-1178
ISSN:
0031-9422
Subject:
anti-inflammatory activity; nitric oxide synthase; Tripterygium wilfordii; interleukin-1; phytochemicals; immunosuppression; macrophages; medicinal plants; mice; lignans; spectral analysis; prostaglandin synthase; gene expression regulation; stereochemistry; chemical structure; Oriental traditional medicine; China
Abstract:
... The extract of Tripterygium wilfordii Hook F. (TwHF), which showed anti-inflammatory and immunosuppressive activities in human clinical trials for rheumatoid arthritis, was subjected to the activity-guided fractionation and spectroscopic characterization of bioactives. A tetrahydrofuran lignan, tripterygiol (1), and eight known compounds, all capable of suppressing pro-inflammatory gene expression ...
DOI:
10.1016/j.phytochem.2007.02.021
PubMed:
17399748

16. Anti-inflammatory flavonolignans from Hydnocarpus anthelminthica seeds

Author:
Jun-Feng Wang; Ge-Fen Yin; Xiao-Jiang Zhou; Jia Su; Yan Li; Hui-Min Zhong; Gang Duan; Yong-Xian Cheng
Source:
Journal of Asian natural products research 2011 v.13 no.1 pp. 80-83
ISSN:
1477-2213
Subject:
Hydnocarpus; anti-inflammatory activity; bioassays; chemical structure; flavonoids; inhibitory concentration 50; lignans; nitric oxide; plant extracts; seeds; spectral analysis
Abstract:
... A new flavonolignan, anthelminthicol A (1), together with four known compounds, was isolated from the EtOAc extracts of the seeds of Hydnocarpus anthelminthica. Their structures were elucidated using extensive spectroscopic techniques. Bioassay showed that compounds 3–5 could inhibit nitric oxide production in LPS-stimulated RAW 264.7 macrophage cell lines, with IC₅₀ values of 7.81, 9.38, and 10.5 ...
DOI:
10.1080/10286020.2010.543131

17. Anti-inflammatory properties of extracts, fractions and lignans isolated from Phyllanthus amarus

Author:
Kassuya, C.A.L.; Leite, D.F.P.; Melo, L.V. de; Rehder, V.L.G.; Calixto, J.B.
Source:
Planta medica 2005 v.71 no.8 pp. 721-726
ISSN:
0032-0943
Subject:
traditional medicine; anti-inflammatory activity; fractionation; interleukin-1; phytochemicals; medicinal plants; plant extracts; neutrophils; lignans; spectral analysis; edema; enzyme activity; peroxidase; chemical structure; Phyllanthus amarus
DOI:
10.1055/s-2005-871258
PubMed:
16142635

18. Antibacterial lignans and triterpenoids from Rostellularia procumbens

Author:
Zhang, Y.; Bao, F.; Hu, J.; Liang, S.; Du, G.; Zhang, C.; Cheng, Y.
Source:
Planta medica 2007 v.73 no.15 pp. 1596-1599
ISSN:
0032-0943
Subject:
humans; cytotoxicity; anticarcinogenic activity; medicinal plants; triterpenoids; lignans; cultured cells; spectral analysis; Justicia; chemical structure; Oriental traditional medicine; antibacterial properties; China
DOI:
10.1055/s-2007-993747
PubMed:
18058608

19. Antifungal, antiprotozoal, cytotoxic and piscicidal properties of justicidin B and a new arylnaphthalide lignan from Phyllanthus piscatorum

Author:
Gertsch, J.; Tobler, R.T.; Brun, R.; Sticher, O.; Heilmann, J.
Source:
Planta medica 2003 v.69 no.5 pp. 420-424
ISSN:
0032-0943
Subject:
Phyllanthus; plant extracts; fractionation; phytochemicals; lignans; antifungal agents; antiprotozoal agents; antifungal properties; Aspergillus fumigatus; Aspergillus flavus; Candida albicans; Cryptococcus neoformans; Trypanosoma rhodesiense; Trypanosoma cruzi; Plasmodium falciparum; humans; cell lines; cytotoxicity; chemical structure; Venezuela
DOI:
10.1055/s-2003-39706
PubMed:
12802722

20. Antihepatitis activity (anti-HBsAg and anti-HBeAg) of C19 homolignans and six novel C18 dibenzocyclooctadiene lignans from Kadsura japonica

Author:
Kuo, Y.H.; Wu, M.D.; Huang, R.L.; Kuo, L.M.Y.; Hsu, Y.W.; Liaw, C.C.; Hung, C.C.; Shen, Y.C.; Ong, C.W.
Source:
Planta medica 2005 v.71 no.7 pp. 646-653
ISSN:
0032-0943
Subject:
Kadsura; plant extracts; phytochemicals; lignans; chemical structure; spectral analysis; stereochemistry; antiviral properties; viral hepatitis; Hepatitis B virus; viral antigens; cultured cells
DOI:
10.1055/s-2005-871271
PubMed:
16041651