• 제목/요약/키워드: glycoside

검색결과 632건 처리시간 0.025초

Ginsenoside $Rf_{2}$ , a New Dammarane Glycoside from Korean Red Ginseng(Panax ginseng)

  • Park, Jong-Dae;Lee, You-Hui;Kim, Shin-Il
    • Archives of Pharmacal Research
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    • 제21권5호
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    • pp.615-617
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    • 1998
  • A new dammarane glycoside named ginsenoside $Rf_{2}$ has been isolated from Korean red ginseng (Panax ginseng) and its chemical structure has been elucidated as $6-O-[{\alpha}-L-rham-nopyranosyl (1{\rightarrow}2){\beta}-D-glucopyranosyl]$$dammarane-3{\beta}, 6{\alpa}, 12{\beta}$, 20(R), 25-pentol by chemical and spectral methods.

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Pharmacological activities and the constituents of the leaves of Hedera rhombea Bean (II) : On the constituents of the leaves

  • Lee, Ihn-Rhan;Lee, Min-Suk;Choi, Kyoung-Ah;Seo, Eun-Kyoung
    • Archives of Pharmacal Research
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    • 제16권4호
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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.

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Iridoid Glycosides from the Aerial Parts of Galium spurium L.

  • Ahn, Dal-Rae;Kim, Dae-Keun
    • Natural Product Sciences
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    • 제18권3호
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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.

A Further Furostanol Glycoside From Smilax china

  • Kim, Sung-Whan;Chung, Kyu-Charn;Son, Kun-Ho;Kang, Sam-Sik
    • 생약학회지
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    • 제20권3호
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    • pp.145-146
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    • 1989
  • A furostanol glycoside, $mp\;190{\sim}198^{\circ}$, was isolated from the MeOH extract of Smilax china rhizomes. The structure was established as a mixture of $26-O-{\beta}-_D-glucopyranosyl-(25R)-22-methoxy-furost-5-en-3\beta,26-diol\;3-O-\alpha-_L-rhamnopyranosyl-(1\rightarrow2)-\beta-_D-glucopyranoside$ and its 22-hydroxy derivative on the basis of spectral data and chemical correlations.

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A New 24-Nor-Lupane-Glycoside of Acanthopanax trifoliatus

  • Kiem, Phan-Van;Minh, Chau-Van;Cai, Xing-Fu;Lee, Jung-Joon;Kim, Young-Ho
    • Archives of Pharmacal Research
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    • 제26권9호
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    • pp.706-708
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    • 2003
  • A new 24-nor-lupaneglycoside was isolated from the leaves of Acanthopanax trifoliatus. Based on spectroscopic data its chemical structure was determined as 24-nor-11$\alpha$-hydroxy-3-oxo-lup-20(29)-en-28-oic acid 28-Ο-$\alpha$-L-rhamnopyranosyl-(1$\rightarrow4)-\beta-D-glucopyranosyl-(1\rightarrow6)-\beta$-D-glucopyranosyl ester.

Schima wallichii ssp. Liukiuensis 추출물 Sterol Glycoside의 Candida spp.에 대한 항균활성 (Antimicrobial Agent from Schima wallichii ssp. liukiuensis against Candida spp.)

  • 신금;민지윤;강승미;박동진;송현진;권오웅;양재경;;최명석
    • 한국약용작물학회지
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    • 제17권1호
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    • pp.61-67
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    • 2009
  • This study carried out development of a natural antimicrobial agent from Schima wallichii ssp. liukiuensis. Compound I exhibiting potent antimicrobial activity against Candida spp. was isolated from the methanol extracts of Schima wallichii ssp. liukiuensis. The structure of I identified as a sterol glycoside consisted of a trisaccharide and ${\alpha}_1$-sitosterol. Trisaccharide composed of L-rhamnose, D-galactose and D-glucose residues. The antimicrobial activity of I was selective on yeast rather than bacteria or other fungi. Compound I was demonstrated to be ineffective against toxicity to mouse liver cells where as protective to human dermal fibroblast cells at low concentrations. Thus, it is reasonable to expect a sterol glycoside (I) as a valuable alternative for synthetic antifungal.

A New Flavonol Glycoside from Tristemma hirtum (Melastomataceae)

  • Kenfack, Joseph Nandjou;Ponou, Beaudelaire Kemvoufo;Kuhlborn, Jonas;Teponno, Remy Bertrand;Nono, Raymond Ngansop;Fouedjou, Romuald Tematio;Opatz, Till;Park, Hee Juhn;Tapondjou, Leon Azefack
    • Natural Product Sciences
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    • 제24권3호
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    • pp.213-218
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    • 2018
  • Chemical investigation of the plant Tristemma hirtum P. Beauv (Melastomataceae) resulted to the isolation of a new flavonol glycoside named quercetin-7-O-${\alpha}$-D-arabinofuranoside (1), together with nine known compounds including 3'-hexadecanoyl-2'-(9aZ)-tetradecanoyl-glycerol 1'-O-[${\beta}$-D-galactopyranosyl-(1'' ${\rightarrow}$ 6'')-${\alpha}$-D-galactopyranoside] (2), arjunolic acid (3), ${\beta}$-sitosterol-3-O-${\beta}$-D-glucopyranoside (4), terminolic acid (5), quercetin (6), asiatic acid (7), maslinic acid (8), $1{\beta}$-O-galloylpedunculagin (9) and 6-hydroxyapigenin 7-O-${\beta}$-D-glucopyranoside (10) from the methanol extract using normal and reversed phase column chromatography. The structures of these compounds were determined by comprehensive interpretation of their spectral data mainly including 1D- 2D-NMR ($^1H-^1H$ COSY, HSQC, and HMBC) spectroscopic and ESI-TOF-MS mass spectrometric analysis.

병풀 잎에서 triterpene glycosides의 시기별 함량변화 (Seasonal variations of triterpene glycosides contents in the leaf of Centella asiatica (L.) Urban)

  • 김옥태;김민영;김수정;김유정;김광수;안준철;김시욱;황백
    • 한국약용작물학회지
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    • 제10권5호
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    • pp.375-378
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    • 2002
  • 5월부터 10월까지 병풀의 지상부에 triterpene glycosides인 madecassoside와 asiaticoside의 시기별 함량변화를 조사하였다. 잎에서는 9월에 약 108.1 mg/g으로 가장 높은 수준의 함량을 보였다. 엽병에서는 19.02 mg/g으로 잎에서 보이는 수준보다는 낮은 수준을 나타냈다. 병풀의 triterpene glycosides는 잎에 주로 축적되며, 가장 적절한 병풀의 수확시기는 9월로 잠적 확인되었다.

수목추출물의 생리활성에 관한 연구(VI) - 산벚나무 심재의 Flavonoids - (Studies on Biological Activity of Wood Extractives(VI) - Flavonoids in heartwood of Prunus sargentii -)

  • 이학주;이성숙;최돈하;카토 아츠시
    • Journal of the Korean Wood Science and Technology
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    • 제29권2호
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    • pp.133-139
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    • 2001
  • 항균 및 항산화활성이 우수한 산벚나무(Prunus Sargentii)심재 에탄올 추출물로부터 6개의 후라보노이드 화합물을 단리하였다. 이들을 기기분석한 결과, dihydroflavonol인 3,3',4',5,7-pentahydroxyflavanone(taxifolin)을 비롯하여flavanone인 5-hydroxy-7-methoxyflavanone(pinostrobin), 4',5,7-trihydroxyflavanone (naringenin), 3',4',5,7-tetrahydroxyflavanone(eriodictyol), 5,7-dihydroxyflavanone(pinocembrin), 그리고 flavanone의 배당체인 verecundin(7-hydroxyflavanone 5-O-${\beta}$-D-glucopyranoside)로 각각 동정되었다.

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