• Title/Summary/Keyword: kaempferol $3-O-(2'-O-galloyl-{\beta}-_D-glucoside)$

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Phenolic Compounds from Euphorbia ebracteolata (붉은대극의 페놀성 화합물)

  • Ahn, Byung-Tae;Lee, Kyong-Soon
    • Korean Journal of Pharmacognosy
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    • v.27 no.2
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    • pp.136-141
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    • 1996
  • We have previously reported the isolation of nine hydrolisable tannins and five flavonoids from the aerial parts of Euphorbia ebracteolata. Further investigation about the same plant has led to the isolation of 5-O-caffeoyl quinic acid, kaempferol $3-O-(2'-O-galloyl-{\beta}-_D-glucoside)$ and euphorbin A.

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Phenolic Compounds of Aerial Parts of Euphorbia pekinensis (대극 지상부의 페놀성 화합물)

  • Ahn, Byung-Tae;Zhang, Ben Kang;Lee, Sang-Cheol;Kim, Jae-Gil;Ro, Jai-Seup;Lee, Kyong-Soon
    • YAKHAK HOEJI
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    • v.40 no.2
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    • pp.170-176
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    • 1996
  • A chemical examination of the aerial parts of Euphorbia pekinensis $R_{UPRECHT}$. (Euphorbiaceae) has led to the isolation of seven hydrolyzable tannins and ten fl avonoid glycosides. The former ones have been identified as gallic acid, methylgallate, 3-O-galloyl shikimic acid, 1,3,4,6-tetra-O-galloyl-${\beta}-_D$-glucose, 1,2,3,4,6-penta-O-galloyl-${\beta}-_D$-glucose, corilagin, geraniin and the latter ones as isoquercitrin, quercitrin, astragalin, afzelin, prunin, rutin, kaempferol-3-O-rutinoside, quercetin-3-O-(2"-O-galloyl)-${\beta}-_D$-glucoside and quercetin-3-O-(2"-O-galloyl)-${\alpha}-_L$-rhamnoside on the basis of chemical and spectroscopic evidence.

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Phenolic Compounds from Aerial Parts of Euphorbia pekinensis (II) (대극 지상부의 페놀성 화합물(제2보))

  • Ahn, Byung-Tae;Kang, Sam-Sik
    • Korean Journal of Pharmacognosy
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    • v.27 no.2
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    • pp.142-145
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    • 1996
  • We have previously reported the isolation of seven hydrolyzable tannins and nine flavonoids from Euphorbia pekinensis Ruprecht. Further investigation about the same plant has led to the isolation of kaempferol, quercetin, kaempferol $3-O-(2'-O-galloyl-{\beta}-_D-glucoside)$, quercetin 3-O-(2'-O-galloylrutinoside), ellagic acid and acetonyl geraniin. These compounds were isolated from this plant for the first time.

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Pharmacognostical Study on the Euphorbia ebracteolata(I) -On the Flavonoidal Constituents- (Euphorbia ebracteolata에 대한 생약학적 연구(I) -Euphorbia ebracteolata의 Flavonoid 성분-)

  • Lee, Sang-Cheol;Ahn, Beung-Tae;Park, Woong-Yang;Lee, Seung-Ho;Ro, Jai-Seup;Lee, Kyong-Soon;Ryu, Eung-Kul
    • Korean Journal of Pharmacognosy
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    • v.23 no.3
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    • pp.126-131
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    • 1992
  • Four flavonoids were isolated from the aerial parts of Euphorbia ebracteolata. On the basis of chemical and spectroscopic evidence, the structures of these compounds were established as $quercetin-3-O-{\beta}-D-glucoside$(isoquercitrin)(I), quercetin-3-O-rutinoside(rutin)(II), kaempferol-3-O-rutinoside(III) and $quercetin-3-O-(2'-O-galloyl)-{\beta}-D-glucoside$(IV) which was the main flavonoidal component in this plant. The isolation of flavonoids from E. ebracteolata is the first example.

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