• Animal cells and systems
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• v.7 no.4
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• pp.327-330
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• 2003

We analyzed and compared profiles of flavonols extracted from leaves and exocarps of the grape Kyoho by TLC, HPLC and UV spectrophotometry. In the exocarps, quercetin 3-O-glucoside was the main compound while isorhamnetin 3-O-glycoside (I) was present in minor amounts. In leaves, on the other hand, quercetin 3-O-glucoside and quercetin 3-O-glucoside-7-O-glucronide were the major compounds while isorhamnetin 3-O-glycoside (II) and kaempferol 3, 7-O-diglycoside were present in minor amounts.

• Natural Product Sciences
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• v.6 no.2
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• pp.82-85
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• 2000

The aqueous ethanolic whole plant extract of Rosa arabica was found to contain the new natural dimeric phenolic compound, ellagic acid 3,3'-dimethyl ether $4-O-{\alpha}-rhamnopyranoside$, 9, along with ten known phenolic metabolites (1-8, 10 and 11). Structures of all compounds (1-11) were established by routine methods of analysis and confirmed by FAB-MS, $^1H\;and\;^{13}C$ NMR spectral analysis.

• Applied Biological Chemistry
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• v.43 no.4
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• pp.314-316
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• 2000

• Natural Product Sciences
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• v.3 no.1
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• pp.8-10
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• 1997

A new flavonol glycoside, quercetin 3-rhamnosyl $(1{\rightarrow}3)$ galactoside [5] was isolated from the leaves of M. africana. The known compounds kaempferol 3-rutinoside [1], 3'-O-methylquercetin 3-rutinoside [2], quercetin 3-rutinoside [3], and quercetin 3-rhamnosyl $(1{\rightarrow}6)$ galactoside [4] were also isolated for the first time from this plant. Their structures were determined by chemical and spectroscopic methods.

• Archives of Pharmacal Research
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• v.16 no.4
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• pp.331-335
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• 1993

Three phenolic compounds and a dammarane glycoside were isolated from the leaves of Hedera rhombea Bean (Araliaceae). Their structures were characterized as rutin, caffeic acid, 3.5-dicaffeoyl quinic acid and kizuta saponin $K_5$ by chemical and spectral analysis.

• Natural Product Sciences
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• v.18 no.3
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• pp.195-199
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• 2012

Nine iridoid glycoside derivatives were elucidated from the methanolic extract of the aerial parts of Galium spurium (Rubiaceae) through repeated column chromatography. Their chemical structures were characterized as 10-O-trans-p-coumaroylscandoside (1a), 10-O-cis-p-coumaroylscandoside (1b), 10-O-trans-p-coumaroyl-10-O-deacetyldaphylloside (2), 10-O-cis-p-coumaroyl-10-O-deacetyldaphylloside (3), asperulic acid methylester (4), asperuloside (5), asperulosidic acid (6), scandoside (7), and deacetyl asperulosidic acid (8) by spectroscopic analysis. This is the first report of the characterization of compounds 1a, 1b, 2, 3 and 7 from this plant.

• Korean Journal of Pharmacognosy
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• v.27 no.1
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• pp.15-19
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• 1996

In the course of phytochemical studies of Chrysanthermi Flos(Chrysanthemum indicum L., Compositae), two compounds were isolated by repeated column chromatography. Compound 1 is identified as adenosine on the basis of spectroscopic means and comparison with an authentic standard. Compound 2 is determined to be a new alkyl alcohol glycoside, 1-octen-3-ol $3-O-{\beta}-D-xylopyranosyl(1{\rightarrow} 6)-{\beta}-D-glucopyranoside$ on the spectroscopic evidence. Compounds 1 and 2 are reported for the first time from this plant.

• Korean Journal of Pharmacognosy
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• v.32 no.3 s.126
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• pp.189-192
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• 2001

Scillascilloside E-3 (1) and E-1 (2) were isolated from the bulbs of Scilla scilloides. The cytotoxic activities of these compounds were tested against murine (B16/F-10, 3LL) and human cancer cell lines (MCF7, PC-3, HT29, LOX-IMVI, A549 and HT1080). These compounds exhibited a significant cytotoxic activities against all tested cancer cells. Futhermore, the contents of 1 and 2 in S. scilloides are 43.2 and 27.9 mg/kg, respectively.

• Archives of Pharmacal Research
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• v.29 no.10
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• pp.815-820
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• 2006

Antibacterial activity-guided fractionation of the $CHCl_3-MeOH$ (1:1) extract of Paeonia suffruticosa root bark furnished three monoterpene glycosides, 6-O-vanillyoxypaeoniflorin (1), mudanpioside-H (2), and galloyl-oxypaeoniflorin (3). Of the isolated compounds, compound 1 is a new compound. All isolated compounds showed broad, but moderate, antibacterial activity with minimum inhibitory concentration (MIC) values in the range of 100 to $500\;{\mu}g/mL$ against eighteen pathogenic microorganisms of concern for public health or zoonosis.

• Archives of Pharmacal Research
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• v.26 no.6
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• pp.453-457
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• 2003

Four flavonoids (1-4), a phenylethyl glycoside (5), and a phenylpropanoid glycoside (6) were isolated from the flowers of Buddleia officinalis (Loganiaceae). Their structures were determined by chemical and spectral analysis. Among the isolated compounds, luteolin (1) and acteoside (6) exhibited the most potent antioxidative activity on the NBT superoxide scavenging assay. In addition, compounds 1-6 revealed weak antifungal activity, and no hemolytic activity.