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Sayfa 1 itibaren 41 Sonuçlar
Guaiane sesquiterpenoids from Torilis japonica and their cytotoxic effects on human cancer cell lines.
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A new compound 2 and two known guaiane-type sesquiterpenoids were isolated from the methylene chloride-soluble fraction of the methanolic extract of the fruits of Torilis japonica (Umbelliferae) through repeated silica gel and Sephadex LH-20 column chromatography. Their chemical structures were
A novel guaiane sesquiterpene derivative, guai-2-en-10α-ol, from Ulva fasciata Delile inhibits EGFR/PI3K/Akt signaling and induces cytotoxicity in triple-negative breast cancer cells.
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A novel guaiane sesquiterpene derivative, guai-2-en-10α-ol, from Ulva fasciata Delile exhibits antimicrobial property. U. fasciata extract was reported to exhibit cytotoxicity against cancer. In the present study, we have studied the anticancer potential of the compound, guai-2-en-10α-ol, from U.
Guaiane sesquiterpene lactones and amino acid-sesquiterpene lactone conjugates from the aerial parts of Saussurea pulchella.
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Two new guaiane sesquiterpene lactones ( 1 and 2) and seven new amino acid-sesquiterpene lactone conjugates ( 3- 9), together with six known sesquiterpene lactones ( 10- 15), were isolated from the methanol extract of the aerial parts of Saussurea pulchella. Their structures were determined on the
Two new guaiane sesquiterpene lactones from the aerial parts of Artemisia vulgaris.
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Two new guaiane sesquiterpene lactones, vulgarolides A and B (1 and 2), were isolated from Artemisia vulgaris aerial parts using various chromatographic separations. The structure elucidation was performed by combination of spectroscopic experiments including 1D and 2D NMR, HR ESI MS, and CD. Their
Two new guaiane-type sesquiterpenoids from the fruits of Daucus carota L.
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Two new guaiane-type sesquiterpenoids containing an interesting epoxy unit, daucuside (1) and daucusol (2) were isolated from the fruits of Daucus carota L. Their chemical structures were elucidated on the basis of MS, NMR spectroscopic analyses coupled with chemical degradation and they were also
One new guaiane-type sesquiterpene glycoside from the fruits of Daucus carota L.
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A new guaiane-type sesquiterpene glycoside, torilolone 8-O-beta-D-glucopyranoside (1), together with a known analogue compound, torilolone 11-O-beta-D-glucopyranoside (2), was isolated from the fruits of Daucus carota L. Their chemical structures were elucidated on the basis of MS, NMR spectroscopic
Curcumol induces cell cycle arrest in colon cancer cells via reactive oxygen species and Akt/ GSK3β/cyclin D1 pathway.
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BACKGROUND
Curcuma kwangsiensis S. G. Lee & C. F. Liang (Guangxi ezhu, in Chinese) belongs to the Zingiberaceae family, has been used as a traditionally Chinese medicine nearly 2000 year. Curcumol is one of the guaiane-type sesquiterpenoid hemiketal isolated from medicine plant Curcuma kwangsiensis
A new guaiane diterpenoid from Euphorbia wallichii.
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A new guaiane-type diterpenoid, (1alpha,5beta,7alpha)-3,10(18),11-dictytriene-19-acid, was obtained from the roots of Euphorbia wallichii. This is the first isolation of guaiane diterpene from this genus of Euphorbia. The structure was elucidated by spectral methods. And the compound was tested for
Novel zierane- and guaiane-type sesquiterpenes from the root of Melicope denhamii.
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Two novel zierane-type sesquiterpenes, named melicodenones A and B (1 and 2, resp.), and three new guaiane-type sesquiterpenes, named melicodenones C-E (3-5), were isolated from the root of Melicope denhamii (Seem.) T. G. Hartley together with zierone (6). Their structures were established by
New guaiane sesquiterpene lactones from Ixeris dentata.
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Three new guaiane-type sesquiterpene lactones (1-3), together with nine related sesquiterpenes (4-12), were isolated from the whole extract of Ixeris dentata (Asteraceae). The chemical structures of isolates 1-12 were established by spectroscopic analyses as 3 β,8 β-dihydroxy-guaia-10(14)-en-1 α,4
Secondary metabolites from Commiphora opobalsamum and their antiproliferative effect on human prostate cancer cells.
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A cycloartane-type triterpenoid (1), an aliphatic alcohol glycoside (2), an eudesmane-type sesquiterpenoid (3), and a guaiane-type sesquiterpenoid (4) were isolated from the resinous exudates of Commiphora opobalsamum along with six known sesquiterpenoids (5-10). Their structures were established by
Two novel bioactive sulfated guaiane sesquiterpenoid salt alkaloids from the aerial parts of Scorzonera divaricata.
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Extracts of the aerial parts of Scorzonera divaricata afforded sulfoscorzonin D (1) and sulfoscorzonin E (2), two novel pyrrolidine inner salt alkaloids with a sulfated guaiane sesquiterpene lactone nucleus, along with 22 known compounds. Especially, sulfoscorzonin D containing a unusual monoterpene
The Anti-proliferative Activity of Anisosciadone; A New Guaiane Sesquiterpene from Anisosciadium lanatum.
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Chlorajaponols A-F, sesquiterpenoids from Chloranthus japonicus and their in vitro anti-inflammatory and anti-tumor activities.
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Two new eudesmane sesquiterpenoids, chlorajaponols A-B (1-2), two new guaiane sesquiterpenoids, chlorajaponols C-D (3-4), a new germacrane sesquiterpenoid, chlorajaponol E (5), and a new lindenane sesquiterpenoid, chlorajaponol F (6), along with 8 known sesquiterpenoids and 6 known
Rare dimeric guaianes from Xylopia vielana and their multidrug resistance reversal activity.
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Thirteen undescribed dimeric guaianes were isolated from the leaves of Xylopia vielana Pierre. Their structures were elucidated by NMR spectroscopy and mass spectrometry, and the absolute configurations of vielanins G-Q were determined by a combination of the circular dichroism (CD) exciton
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