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Bioactive isopimarane and 3,4-seco isopimarane diterpenoids from Isodon amethystoides
Isodon amethystoides (Lamiaceae) is a popular plant in folk medicine in the southern provinces of China. Our phytochemical investigation of the twigs...
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Cytotoxic Isopimarane Diterpenoids from Kaempferia koratensis Rhizomes
Two new isopimarane diterpenoids, koratanes A and B, were identified from the rhizomes of Kaempferia koratensis Picheans., Zingiberaceae, together...
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A new 3,4-seco-isopimarane and three new isopimarane diterpenoids from Kaempferia champasakensis collected from Vietnam and their cytotoxic activities
A phytochemical investigation of Kaempferia champasakensis rhizomes led to the isolation of a new 3,4-seco-isopimarane diterpene, kaempferiol A ( 1 ),...
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Chukranoids A–I, isopimarane diterpenoids from Chukrasia velutina
Bioactivity guided separation of Chukrasia velutina root methanolic extract led to the isolation of nine new isopimarane diterpenoids, chukranoids...
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Kaempferia diterpenoids and flavonoids: an overview on phytochemistry, biosynthesis, synthesis, pharmacology, and pharmacokinetics
Kaempferia species have contained various crucial ethnobotanical features, and are being used as traditional folk medicines in some Southeast Asia....
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Terpenoids in resinites from middle Cretaceous karst infillings in the Rhenish Massif (Rhineland, Germany): botanical source and preservation
Resinites from middle Cretaceous infillings of karst structures exposed in two limestone quarries in the Rhenish Massif, Germany, were analyzed for...
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Kaemtakols A–D, highly oxidized pimarane diterpenoids with potent anti-inflammatory activity from Kaempferia takensis
Four highly oxidized pimarane diterpenoids were isolated from Kaempferia takensis rhizomes. Kaemtakols A–C possess a tetracyclic ring with either a...
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Five pimarane diterpenoids from Kaempferia champasakensis and their cytotoxic activities
A phytochemical investigation of Kaempferia champasakensis rhizomes led to the isolation of five new pimarane diterpenes, kaempferiols E–I ( 1–5 ). The...
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Anti-inflammatory activities of isopimara-8(9),15-diene diterpenoids and mode of action of kaempulchraols B–D from Kaempferia pulchra rhizomes
Kaempulchraols B–D ( 2–4 ), isopimara-8(9),15-diene diterpenoids isolated from Kaempferia pulchra rhizomes collected in Myanmar, were identified as...
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Anti-Vpr activities of sesqui- and diterpenoids from the roots and rhizomes of Kaempferia candida
New copaene-type and nerolidol-type sesquiterpenoids, 7-hydroxymustakone ( 1 ) and 15-hydroxynerolidol ( 2 ), and a 15-norlabdane diterpenoid,...
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Exploring the potential of Aspergillus wentii: secondary metabolites and biological properties
Fungi are of considerable importance due to their capacity to biosynthesize various secondary metabolites with bioactive properties that draw high...
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Functional characterization and structural bases of two class I diterpene synthases in pimarane-type diterpene biosynthesis
Pimarane-type diterpenoids are widely distributed in all domains of life, but no structures or catalytic mechanisms of pimarane-type diterpene...
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Synthetic studies on tricyclic diterpenoids: convenient synthesis of 16-arylisopimaranes
AbstractA series of 16-arylisopimaranes has been synthesized by palladium-catalyzed arylation of the corresponding tricyclic diterpenoid isopimaric...
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Medicinal Plants Against Vesicular Stomatitis Virus (VSV) Infections: Ethnopharmacology, Chemistry, and Clinical and Preclinical Studies
Vesicular stomatitis virus (VSV) is a rhabdovirus, that is, an encapsulated negative-sense RNA virus. VSV could be spread from insects to mammals,...
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Terpenes from Fungi
Terpenes are naturally occurring compounds produced by an extensive variety of plants, animals, and microorganisms. A wide range of the biological...
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Paleodepositional and Hydrocarbon Source-Rock Characteristics of the Sonari Succession (Paleocene), Barmer Basin, NW India: Implications from Petrography and Geochemistry
Lignite deposits, associated with Akli Formation (Paleocene), from the Sonari mine of Barmer Basin, Rajasthan, were investigated by applying organic...
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Albiflorenes A–L, polyoxygenated cyclohex(a/e)ne diterpene esters from Kaempferia albiflora
Twelve polyoxygenated cyclohex(a/e)ne diterpene esters, named albiflorenes A–L ( 1 – 12 ), were isolated from the whole plants of Kaempferia albiflora ,...
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Marine fungal metabolites as a source of drug leads against aquatic pathogens
AbstractAquatic pathogens, including Vibrio , Edwardsiella , Pseudomonas , and Aeromonas , which could result in bacterial diseases to aquaculture, have...
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A New Labdane Derivative from the Bark of Chamaecyparis obtusa var. formosana
A new labdane derivative, chamaecyparisin A ( 1 ), was isolated from the methanol extract of the bark of Chamaecyparis obtusa var. formosana . Its...
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Supply of terrigenous organic matter from tidal flat to the marine environment: An example of neritic source rocks in the Eocene **hu Formation, **hu Depression, East China Sea Shelf Basin
The terrigenously-dominated marine shales which were deposited in the lower Eocene **hu Formation were thought to be a potential source rock in the...