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trigonostemon xyphophylloides/cancro
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Página 1 a partir de 19 resultados
Constituents of Trigonostemon heterophyllus.
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Six new diterpenoids, 1-6, a new prenylated sesquiterpenoid, 7, and six known compounds were isolated from Trigonostemon heterophyllus. The structures of 1-7 were elucidated on the basis of NMR and MS analysis. The daphnane diterpenoids trigoheterins A (1) and B (2) possess a rare 4,6-oxetane moiety
Daphnane-type diterpenoids from Trigonostemon howii.
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Nine new daphnane-type diterpenoids (1-9), named trigohownins A-I, and four known analogues were isolated from Trigonostemon howii. Their structures were elucidated on the basis of extensive NMR and MS analyses. Trigohownins A (1) and D (4) exhibited moderate cytotoxic activity against the HL-60
Structurally diverse diterpenoids from Trigonostemon howii.
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Phytochemical investigation on the stems and leaves of Trigonostemon howii resulted in the isolation of a new abietane diterpenoid, trigohowimine A (1), along with seven known structurally diverse diterpenoids (2-8). The structure of 1 was elucidated by extensive spectroscopic methods and the known
Trigohowilols A-G, degraded diterpenoids from the stems of Trigonostemon howii.
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Two new degraded diterpenoids, trigohowilols A (1) and B (2), four new heterodimers, trigohowilols C-F (3-6), one new homodimer, trigohowilol G (7), and three known degraded diterpenoids (8-10) were isolated from the methanol extract of the stems of Trigonostemon howii. Compounds 1-7 were evaluated
Five new degraded diterpenoids from Trigonostemon xyphophylloides.
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Five new degraded diterpenoids trigoxyphins J-N (1-5), among them trigoxyphins K and L have a novel carbon skeleton, together with four known analogues (6-9) have been obtained from the ethanol extract of the twigs of Trigonostemon xyphophylloides. Compounds 1-5 were evaluated for their cytotoxic
Trigochilides A and B, two highly modified daphnane-type diterpenoids from Trigonostemon chinensis.
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Trigochilides A (1) and B (2), two highly modified daphnane-type diterpenoids with 12-carbon-containing polyketide appendages at C-16 forming a macro-lactone with C-3, were isolated from the twigs and leaves of Trigonostemon chinensis. Their structures were elucidated by spectroscopic analysis.
Trigonostemon reidioides modulates endothelial cell proliferation, migration and tube formation via downregulation of the Akt signaling pathway.
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Trigonostemon reidi`oides (TR) is used as a Thai traditional medicine for the treatment of drug addiction, asthma, food poisoning, constipation and snake bites. The present study investigated the effects and molecular mechanisms of the ethanolic extract of TR (ETR) on mitogen-induced human umbilical
Novel γ-lactone derivatives from Trigonostemon heterophyllus with their potential antiproliferative activities.
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Two novel γ-lactone derivatives, trigoheterophines A (1) and B (2), together with four known furan derivatives (3-6), were isolated from the stems and leaves of Trigonostemon heterophyllus. The structures of 1 and 2 were elucidated by extensive spectroscopic methods and the known compounds were
Trigoxyphins A-G: diterpenes from Trigonostemon xyphophylloides.
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Six new oxygenated daphnane-type diterpenoids, trigoxyphins A-F (1-6), a phenanthrene-type diterpenoid, trigoxyphin G (7), and two known compounds were isolated from twigs of Trigonostemon xyphophylloides. Their structures were established using spectroscopic methods. Compounds 1 and 2 exhibited
Trigoxyphins H and I: two new daphnane diterpenoids from Trigonostemon xyphophylloides.
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Two new daphnane diterpenoids (1 and 2), together with four known analogues (3-6) were isolated from Trigonostemon xyphophylloides. Their structures were elucidated by spectroscopic analysis. Compounds 1 and 2 were evaluated for in vitro cytotoxic activities against the SPCA-1 (human lung cancer)
A new cytotoxic daphnane diterpenoid, rediocide G, from Trigonostemon reidioides.
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Rediocide G (7), a new daphnane diterpenoid, was isolated from the roots of Trigonostemon reidioides (Euphorbiaceae), together with two congeners, rediocide A and rediocide B, (+)-syringaresinol, scopoletin, tomentin and stigmasterol. The structure of the new natural product was elucidated by
Trigoflavidols A-C, degraded diterpenoids with antimicrobial activity, from Trigonostemon flavidus.
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Trigoflavidols A (1) and B (2), tetranorditerpenoid dimers possessing a rearrangement skeleton with a spiroketal core moiety, and trigoflavidol C (3), a hexanorditerpenoid, have been isolated from Trigonostemon flavidus along with two known compounds. Compounds 1 and 2 showed moderate antimicrobial
Regulatory effects and molecular mechanism of Trigonostemon reidioides on lipopolysaccharide‑induced inflammatory responses in RAW264.7 cells.
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Trigonostemon reidioides (Kurz) Craib has been traditionally used for the treatment of vomiting and asthma in Cambodia. However, the underlying molecular mechanisms of the anti‑inflammatory effect of T. reidioides extract remains unknown. The present study investigated the anti‑inflammatory activity
Three new phenanthrenone constituents from Trigonostemon lii.
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Three new phenanthrenone constituents, trigoxyphins U-W (1, 7 and 9), together with eight known ones, trigoxyphin M (2), 6,9-O-dimethyltrigonostemone (3), trigonstemone (4), thrigonosomone B (5), trigonochinene E (6), actephiiol A (8), epiactephilol A (10) and neoboutomannin (11), were obtained from
Trigonosins A-F, daphnane diterpenoids from Trigonostemon thyrsoideum.
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Phytochemical study of the roots of Trigonostemon thyrsoideum led to the isolation of four new oxygenated daphnane-type diterpenoids, trigonosins A-D (1-4), and two new modified daphnanes, trigonosins E and F (5 and 6). The structures and relative configurations were elucidated on the basis of
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