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horsfieldia/cancro
Il collegamento viene salvato negli appunti
6 risultati
New flavan and alkyl alpha,beta-lactones from the stem bark of Horsfieldia superba.
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In the present study phytochemical investigation of the methanol extract of the stem bark of Horsfieldia superba led to the isolation of twenty compounds (1-20), of which three (1-3) were new. However, compounds 2 and 3 were previously reported as synthetic alpha,beta-lactones. The compounds were
Two new flavans from the trunk and leaves of Horsfieldia glabra.
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Two new flavans, (2R, 4R)-4'-hydroxy-3',5'-methyl-6,7-methylenedioxy-4-O-2'-cycloflavan (1), and (2R, 4R)-4'-hydroxy-3'-methyl-6,7-methylenedioxy-4-O-2'-cycloflavan (2), along with six known compounds were isolated from the trunk and leaves of Horsfieldia glabra. Their structures were elucidated by
Two new lignans from Horsfieldia kingii.
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Two new dibenzylbutyrolactol lignans and three known dibenzylbutyrolactone lignans were isolated from the twigs and leaves of Horsfieldia kingii. Their structures were elucidated by spectroscopic analysis. Cytotoxicity evaluation of these compounds against five human tumour lines showed no
A new dimeric diarylpropane from Horsfieldia tetratepala.
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Five compounds, including a new dimeric diarylpropane, were isolated from the petroleum ether extract of the twigs and leaves of Horsfieldia tetratepala. The structures of these compounds were elucidated by spectroscopic analysis. Moreover, the antiproliferative activities of these compounds were
A new isoflavanone from the trunk of Horsfieldia pandurifolia.
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A new isoflavanone, 2,2'-epoxy-4'-methoxy-3,7-dihydroxyisoflavanone (1), and a new natural coumaranone, 2-hyroxy-2-(4'-methoxybenzyl)-6-methoxy-3-coumaranone (2), along with 26 known compounds, were first isolated from the trunk of Horsfieldia pandurifolia. Their structures were elucidated by the
Horsfiequinones A-F, dimeric diarylpropanoids from Horsfieldia tetratepala.
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A new diarylpropanoid, horsfiequinone A (1), and five new dimeric diarylpropanoids with 1,4-p-benzoquinone residue, horsfiequinones B-F (2-6), along with a known compound, combrequinone B (7), were isolated from Horsfieldia tetratepala. Their structures were elucidated by means of spectroscopic
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