Results 141 to 150 of about 10,001 (185)
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Clerodane diterpenoids from Pulicaria wightiana
Phytochemistry, 2005Five clerodane diterpenoids have been isolated from the aerial parts of Pulicaria wightiana along with 3'5,6-trihydroxy-3,4',7-trimethoxyflavone and 2-methyl-5-hydroxy-chroman-4-one. The structures and stereochemistry of the compounds were established from spectral (mainly 1D and 2D NMR) studies.
Biswanath, Das +8 more
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Insect Antifeedant Activity of Clerodane Diterpenoids
Journal of Natural Products, 1994Fourteen clerodane-type diterpenoids isolated from plants in the genera Baccharis, Teucrium, and Salvia were assayed for antifeedant activity against Tenebrio molitor larvae in order to establish structure-activity relationships. Among the compounds tested, furanoditerpenes with alpha, beta-unsaturated-gamma-lactone moieties, or C-4-epoxy substitution ...
M E, Sosa, C E, Tonn, O S, Giordano
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neo-Clerodane diterpenoids from Baccharis flabellata
Phytochemistry, 2002AbstractFor Abstract see ChemInform Abstract in Full Text.
Virginia E Juan, Juan Hikawczuk +3 more
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New diterpenoids with clerodane skeleton
Phytochemistry, 1971Abstract The structure of two diterpenoids with clerodane skeleton isolated from bulbs of Annona coriacea have been established as (1) and (2).
M. Ferrari, F. Pelizzoni, G. Ferrari
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Clerodane diterpenoids of Salvia lineata
Phytochemistry, 1986Abstract The aerial parts of Salvia lineata afforded, in addition to sitosterol, oleanolic acid and flavonoids of known structures, three clerodane derivatives related to salviarin and gensnerofolin B. The structures were elucidated by spectroscopic and chemical means.
Baldomero Esquivel +3 more
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New clerodane diterpenoids from Casearia sylvestris
Fitoterapia, 2009Two new clerodane diterpenoids 2 beta-methoxy-cleroda-3,13-dien-18-carboxy-15,16-olide (1) and 15 xi-methoxy-cleroda-3,12-dien-18-carboxy-15,16-olide (2) and one new nitrogen-containing clerodane diterpenoid 15-oxo-echinophyllin A (3), along with six known compounds, namely, echinophyllin A, (-)-patagonic acid, tyrosol, oplopanone, 4-hydroxy-4-methyl-2-
Wei, Wang +5 more
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Neo-clerodane diterpenoids from Baccharis incarum
Phytochemistry, 1985Abstract A new neo-clerodane diterpenoid was isolated from the aerial parts of Baccharis incarum together with the previously known diterpenoids bacchalineol and barticulidiol.
Arturo Givovich +2 more
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Clerodane Diterpenoids from Ajuga Bracteosa Wall
Natural Product Letters, 2002The whole plant of Ajuga bracteosa afforded five compounds including one new clerodane diterpenoid designated as Bracteonin-A (1) 6alpha-acetoxy, 15 (R&S)-methoxy, 18-(4'-hydroxy, 3'-beta-methyl, 3'-alpha-acetoxy, butyryloxy) neoclerodane. The other compounds identified were 14,15-dihydroajugapitin, 14-hydro-15-hydroxy ajugapitin, beta-sitosterol, and ...
Vegesana H K, Verma +2 more
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Clerodane-type diterpenoids from Nannoglottis ravida
Phytochemistry, 2004Chemical investigation of the roots of Nannoglottis ravida resulted in the characterization of two 5alpha,10alpha-cis-clerodane-type diterpenoides, ravidin A and B. Their structures and stereochemistry were established by spectroscopic methods, including X-ray crystallographic diffraction analysis of ravidin A.
Hai-Lin, Qin, Zhi-Hong, Li
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Clerodane and labdane diterpenoids from Nuxia sphaerocephala
Phytochemistry, 2006Seven diterpenoids including four clerodane and three labdane derivatives, (13S)-ent-7beta-hydroxy-3-cleroden-15-oic acid (1), ent-7beta-hydroxy-2-oxo-3-cleroden-15-oic acid (2), ent-2,7-dioxo-3-clero-den-15-oic acid (3), ent-18-(E)-caffeoyloxy-7beta-hydroxy-3-cleroden-15-oic acid (4) (13S)-ent-18-(E)-coumaroyloxy-8(17)-labden-15-oic acid (5), ent-18 ...
Mambu, Lengo +6 more
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