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KMID : 0616120160470040301
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Korean Journal of Pharmacognosy
2016 Volume.47 No. 4 p.301 ~ p.306
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Glycosides from the Flower of Clerodendrum trichotomum
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Lee Jong-Wook
Bae Jong-Jin
Kwak Jong-Hwan
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Abstract
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Four phenylpropanoid glycosides and a monoterpene glycoside were isolated from the flower of Clerodendrum trichotomum. Structures of the isolated compounds were identified as acteoside (1), martynoside (2), leucosceptoside A (3), iso-acteoside (4) and neohancoside A (5) by spectroscopic analysis. Compounds 1-4 were isolated from the flower of C. trichotomum for the first time. Compound 5 was first obtained from genus Clerodendrum as well as family Verbenaceae. The antioxidant activity of compounds 1-5 were evaluated by the DPPH free radical scavenging assay. Compounds 1-4 exhibited strong antioxidant activity.
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KEYWORD
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Clerodendrum trichotomum, Flower, Phenylpropanoid glycoside, Monoterpene glycoside, Antioxidant activity, DPPH assay
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