• 제목/요약/키워드: spectroscopic methods

검색결과 633건 처리시간 0.026초

Phytochemical Study on the Vitis thunbergii var. sinuata

  • Jon
    • 한국자원식물학회지
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    • 제9권1호
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    • pp.55-62
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    • 1996
  • The caffeic acid, 4-O-$\beta$-D-glucopyranosyl caffeic acid, 4-O-$\beta$-D-glucopyranosyl-$\rho$-coumaric acid and 7-O-$\beta$-D-glucuronide of ($\pm$)-eriodictyol have been isolated from the root of Vitis thunbergii var. sinuata. The structures of compounds were determined by chemical and spectroscopic methods.

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녹두의 성분연구 (Studies on the Components of the Seeds of Phaseolus radiatus)

  • 신순희;강삼식;권경숙
    • 약학회지
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    • 제34권4호
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    • pp.282-286
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    • 1990
  • An hydrocarbon alcohol and steroids were isolated from the hexane fraction of the extract from the seeds of Phaseolus radiatus L. And also a flavonoid was identified from the ethyl acetate and butanol fraction. The structure of the obtained compound were elucidated by spectroscopic methods (UV, IR, mass and NMR) and their physicochemical properties. As the results, triacontanol, stigmasterol, ${\beta}-sitosterol$ and vitexin were identified.

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A Triterpene Glucosyl Ester from the Roots of Rubus crataesifolius

  • Jung, Sung-Wook;Shin, Myung-Hee;Jung, Jee-H.;Kim, Nam-Deuk;Im, Kwang-Sik
    • Archives of Pharmacal Research
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    • 제24권5호
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    • pp.412-415
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    • 2001
  • Along with five known triterpene glycosides, a new triterpene glucosyl ester, named crataegioside, was isolated from the roots of Rubus crataesifolius Bunge. The structure was established as ilexosapogenin A 28-O-$\beta$-D-glucopyranosyl ester by chemical and spectroscopic methods.

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Further Flavonol Glycosides from Myrsine africana Leaves

  • Arot, Lawrence O. Manguro;Midiwo, Jacob Ogweno;Kraus, Wolfgang
    • Natural Product Sciences
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    • 제3권1호
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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.

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Diterpene Glycoside from Acanthopanax koreanum

  • Kim, Young-Ho;Ryu, Jong-Hyeon;Chung, Bo-Sup
    • 생약학회지
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    • 제21권1호
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    • pp.49-51
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    • 1990
  • From tire root bark of Accnthopanax koreanum a new diterpene glycoside, mp $212{\sim}214^{\circ}$, was isolated. The structure was established as 15(R),16-dihydroxypimar-9(11)-ene-19-oic acid ${\beta}$-D-glucopyranosyl ester (sumogaside) oil the basis of spectroscopic methods and chemical transformation.

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앉은부채(Symplocarpus renifolius Schott) 뿌리의 성분 (Constituents from the Root of Symplocarpus renifolius Schott)

  • 염정록;박동우
    • 생약학회지
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    • 제28권3호
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    • pp.143-148
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    • 1997
  • From the root of Symplocarpus renifolius, four compounds were isolated and their structure was elucidated by chemical and spectroscopic methods. They were identified as ${\beta}-sitosterol$ (compound 1), asparagine (compound 2), isocorydine (compound 3) and 3-hydroxymethyl-4-phenyl phenoxy carboxylic acid glucopyranosyl ester (compound 4). These compounds were firstly isolated from roots of Symplocarpus renifolius. Compound 4 was identified as a new compound, named as symplocarposide.

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물봉선의 성분(成分)에 관한 연구(硏究) (Studies on the Constituents of Impatiens textori)

  • 김종원;최경숙
    • 생약학회지
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    • 제24권1호
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    • pp.26-31
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    • 1993
  • Four flavonoids were isolated from the ether and ethylacetate extracts of Impatiens textori Miquel(Balsaminaceae). The structures were elucidated as luteolin(I), apigenin(II), chrysoeriol(III), and chrysoeriol 7-glucoside(IV) by physico-chemical and spectroscopic methods. These compounds were isolated from this plant for the first time.

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