Lignans - Chemistry
Research News and Information

Sunday, November 22, 2009

Nitric oxide scavenging lignans from Vitex negundo seeds.

30 Aug 2009 A new phenyldihydronaphthalene-type lignan, vitexdoin A (1), a new phenylnaphthalene-type lignan alkaloid, vitedoamine B (2), four new phenylnaphthalene-type lignans, vitexdoins B-E (3-6), and four known lignan derivatives (7-10) were isolated from ... Read more...

Oxygenated lignans from the fruits of Schisandra arisanensis.

30 Aug 2009 An acetone extract of the fruits of the Taiwanese medicinal plant Schisandra arisanensis has yielded 11 new oxygenated lignans. Four of these, named arisantetralones A-D (1-4), possess the aryltetralone skeleton, while the other seven, named ... Read more...

PAF-antagonistic bicyclo[3.2.1]octanoid neolignans from leaves of Ocotea macrophylla Kunth. (Lauraceae).

8 Aug 2009 Di-nor-benzofuran neolignan aldehydes, Delta(7)-3,4-methylenedioxy-3'-methoxy-8',9'-dinor-4',7-epoxy-8,3'-neolignan-7'-aldehyde (ocophyllal A) 1, Delta(7)-3,4,5,3'-tetramethoxy-8',9'-dinor-4',7-epoxy-8,3'-neolignan-7'-aldehyde (ocophyllal B) 2, and ... Read more...

Latest indexed articles for 'Lignans - Chemistry'

These are the very latest articles for this heading:

• Nitric oxide scavenging lignans from Vitex negundo seeds. 30 Aug 2009
• Oxygenated lignans from the fruits of Schisandra arisanensis. 30 Aug 2009
• An update on lignans: natural products and synthesis. 11 Aug 2009
• PAF-antagonistic bicyclo[3.2.1]octanoid neolignans from leaves of Ocotea macrophylla Kunth. (Lauraceae). 8 Aug 2009
• Biotransformation of sesaminol triglucoside to mammalian lignans by intestinal microbiota. 20 Jul 2009
• Isolation, characterization and antioxidative effect of phyllanthin against CCl4-induced toxicity in HepG2 cell line. 29 Jun 2009
• Macrophyllin-type bicyclo[3.2.1]octanoid neolignans from the leaves of Pleurothyrium cinereum. 29 Jun 2009
• Phenylethanoid and lignan glycosides from polar extracts of Lantana, a genus of verbenaceous plants widely used in traditional herbal therapies. 29 Jun 2009
• Complete assignments of 1H and 13C NMR data for new dibenzocyclooctadiene lignans from Kadsura oblongifolia. 29 Jun 2009
• Glycosides of arylnaphthalene lignans from Acanthus mollis having axial chirality. 22 Jun 2009
• Semi-synthesis and anti-proliferative activity evaluation of novel analogues of Honokiol. 19 Jun 2009
• Metabolites of sesamin, a major lignan in sesame seeds, induce neuronal differentiation in PC12 cells through activation of ERK1/2 signaling pathway. 14 Jun 2009
• A novel and efficient synthesis of highly oxidized lignans by a methyltrioxorhenium/hydrogen peroxide catalytic system. Studies on their apoptogenic and antioxidant activity. 11 Jun 2009
• [Ligans from branch of Hypericum petiolulatum] 30 May 2009
• Triterpenoids and a lignan from the aerial parts of Maytenus apurimacensis. 30 May 2009
• Lignans with anti-HIV activity from Schisandra propinqua var. sinensis. 30 May 2009
• Chemical constituents from the aerial parts of Artemisia minor. 30 May 2009
• Complete assignments of (1)H and (13)C NMR spectral data for 7,7'-dihydroarylnaphthalene lignan lactones. 30 May 2009
• Three new 7.3',8.5'-connected bicyclo[3.2.1]octanoids and other neolignans from leaves of Nectandra amazonum NEES. (Lauraceae). 30 May 2009
• Design and synthesis of ten biphenyl-neolignan derivatives and their in vitro inhibitory potency against cyclooxygenase-1/2 activity and 5-lipoxygenase-mediated LTB4-formation. 16 May 2009

See a longer list of these articles.

Technical information about 'Lignans'

Definition: A class of dibenzylbutane derivatives which occurs in higher plants and in fluids (bile, serum, urine, etc.) in man and other animals. These compounds, which have a potential anti-cancer role, can be synthesized in vitro by human fecal flora. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)

Registry Number: 0

Descriptor UI: D017705

Alternative terms: Lignans; Neolignans;

Allowable Qualifiers: administration & dosage; adverse effects; analysis; antagonists & inhibitors; blood; cerebrospinal fluid; chemical synthesis; classification; diagnostic use; economics; history; immunology; isolation & purification; metabolism; pharmacokinetics; pharmacology; poisoning; radiation effects; standards; supply & distribution; therapeutic use; toxicity; urine; chemistry; contraindications; agonists; biosynthesis;

Tree Number: D02.455.426.559.389.140.450;

Online Note: use LIGNANS (NM) to search LIGNANS 1980-93

History Note: 94; was LIGNANS (NM) 1979-93

Technical Notes: do not confuse with LIGNIN, also found in plants