• Title/Summary/Keyword: glucopyranosyl

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Triterpenoidal Saponins from the Leaves of Kalopanax pictum var. chinense

  • Lee, Min-Won;Hahn, Dug-Ryong
    • Archives of Pharmacal Research
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    • v.14 no.2
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    • pp.124-129
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    • 1991
  • One new triterpenoidal bisdesmoside, saponin C (3) were isolated from the leaves of Kalopanax pictum var. chinense along with two known saponins, saponin B (2, sapindoside C) and saponin A (1, sapoindoside B). On the basis of chemical and spectral evidences, the structure of a new triterpenoidal saponin has been elucidated to be 3-O-$\beta$-D-glucopyranosyl (1$\rightarrow$4)$\beta$-D-xylopyranosyl (1$\rightarrow$3)-$\alpha$-L-rhamnopyranosyl (1$\rightarrow$2)-$\alpha$-L-arabino-pyranosyl-23-hydroxyolean-12-en-28-O-$\alpha$-L-rhamnopyrano syl (1$\rightarrow$4)-$\beta$-D-glucopyranosyl (1$\rightarrow$6)-$\beta$-D-glucopyranosyl ester.

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Isolation of Anti-Hepatotoxic Agent from the Root of Astragalus membranaceus (황기(黃耆)의 간기능 보호 성분)

  • Kim, Young-Sook;Kyung, Jong-Soo;Park, Ki-Hyun;Baek, Nam-In
    • Korean Journal of Pharmacognosy
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    • v.27 no.2
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    • pp.111-116
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    • 1996
  • The components were isolated from the root of Astragalus membranaceus and their structures were characterized as 3,4-methylenedioxypyrrolealdehyde, $7-O-{\beta}-D-glucopyranosyl$ 7, 3'-dihydroxy-4'-methoxy isoflavone and a naphthalene derivative on the basis of spectral and physical methods. $7-O-{\beta}-D-glucopyranosyl$ 7, 3'-dihydroxy-4'-methoxy isoflavone and the naphthalene compound showed protective effect on $CC_{l4}-induced$ cytotoxicity in primary cultured rat hepatocytes.

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Resolution of Salbutamol Enantiomers in Human Urine by Reversed-Phase High Performance Liquid Chromatography after Derivatization with 2,3,4,6-Tetra-O-acetyl-${\beta}$-D-glucopyranosyl Isothiocyanate

  • Kim, Kyeong-Ho;Kim, Tae-Kyun
    • Archives of Pharmacal Research
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    • v.21 no.2
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    • pp.217-222
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    • 1998
  • A stereospecific HPLC method has been developed for the resolution of the enantiomers of salbutamol in human urine. After solid-phase extraction and derivatization with 2,3,4,6-tetra-O-acetyl-$\beta$-D-glucopyranosyl isothiocyanate, the diastereomeric derivatives were resolved (Rs=1.83) on $5{\mu}m$ octadecylsilan column using 35% acetonitrile in 0.05M ammonium acetate buffer (pH=6) as a mobile phase with electrochemical detection. The diastereomeric derivatives were formed within 30 min. The detection limit of each enantiomer was 20 ng/ml (S/N=3).

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Cerebrosides and Terpene Glycosides from the Root of Aster scaber

  • Kwon, Hak-Cheol;Cho, Ock-Ryun;Lee, Kang-Choon;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • v.26 no.2
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    • pp.132-137
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    • 2003
  • Three cerebrosides 2, 3, and 5 and two terpene glycosides 1 and 4 have been isolated from the methanol extract of the root of Aster scaber. Their structures were determined as 3-Ο-$\beta$-D-glucuronopyranosyl-oleanolic acid methyl ester (1), (2S, 3S, 4R, 2 R, 8Z, 15 Z)-N-2 -hydroxy-15 -tetracosenoyl-1-Ο-$\beta$-D-glucopyranosyl-4-hydroxy-8-sphingenine (2), (2S, 3S, 4R, 8Z)-N-octadecanoyl-1-Ο-$\beta$-D-glucopyranosyl-4-hydroxy-8-sphingenine (3), 1$\alpha$-hydroxy-6$\beta$-Ο-$\beta$-D-glucosyl-eudesm-3-ene (4), and (2S, 3S, 4R, 2 R, 8Z)-N-2 -hydroxy-hexadecanoyl-1-Ο-$\beta$-D-glucopyranosyl-4-hydroxy-8-sphingenine (5) on the basis of spectroscopic methods.

Two New Phenylpropanoid Glycosides from the Stem Bark of Acanthopanax trifoliatus

  • Kiem, Phan-Van;Minh, Chau-Van;Dat, Nguyen-Tien;Cai, Xing-Fu;Lee, Jung-Joon;Kim, Young-Ho
    • Archives of Pharmacal Research
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    • v.26 no.12
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    • pp.1014-1017
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    • 2003
  • Two new phenylpropanoid glycosides, 1-$\beta$-D-glucopyranosyl-2,6-dimethoxy-4-propenylphenol (1) and 1-[$\beta$-D-glucopyranosyl-(1$\rightarrow6)-\beta$-D-glucopyranosyl]-2,6-dimethoxy-4-propenylphenol (2) were isolated from the stem bark of Acanthopanax trifoliatus along with four known compounds (3∼6). Their structures were established on the basis of spectral and chemical evidences.

A Rubrofusarin Gentiobioside Isomer from Roasted Cassia tora

  • Lee, Hee-Jung;Jung, Jee-Hyung;Kang, Sam-Sick;Choi, Jae-Sue
    • Archives of Pharmacal Research
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    • v.20 no.5
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    • pp.513-515
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    • 1997
  • From the roasted seeds of Cassia tora L., a new naphthopyrone glycoside was isolated and characterized as 10-[${\beta}$-D-glucopyranosyl-$(1{\rightarrow}6)-O-{\beta}-D-$glucopyranosyl)oxy]-5-hydrox y-8-methoxy-2-methyl-4H-naphtho[1, 2-b]pyran-4-one(isorubrofusarin gentiobioside). Along with isorubrofusarin gentiobioside, alaternin and adenosine were isolated and identified.

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Aromatic Compounds and Tritepenoidal Saponins from Clematis koreana var. umbrosa

  • Whang, Wan-Kyunn
    • Archives of Pharmacal Research
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    • v.17 no.1
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    • pp.5-10
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    • 1994
  • From the methanolic extract of aerial parts of Clematis koreana var. umbrosa, one new triterpenoidal saponin, 3-O-${\beta}$-D-xylopyranosyl(1-3)-${\alpha}$-L-arabinopyranosyl oleanolic acid 28-O-${\alpha}$-L-rhamnopyranosyl(1-4)-${\beta}$-glucopyranosyl(1-6)-${\beta}$-glucopyranosyl ESTER, along with five known aromatic compounds and two known triterpenoidal saponins were isolated.

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

  • Youm, Jeong-Rok;Park, Dong-Woo
    • Korean Journal of Pharmacognosy
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    • v.28 no.3
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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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Studies on the Constituents of Caltha minor(I) - Saponin from the Leaves - (동이나물의 성분 (I) - 잎의 Saponin-)

  • 윤광로;한덕룡
    • YAKHAK HOEJI
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    • v.35 no.3
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    • pp.236-239
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    • 1991
  • Two triterpenoid saponins were isolated from the methanol extract of Caltha minor leave(Ranunculaceae). The structure of these saponin were elucidated as hederagenin-3-O-$\alpha$-rhamnopyranosyl(1$\rightarrow$2)-$\alpha$-L-arabinopyrano side and 3-O-$\alpha$-L-rhamnopyranosyl(1$\rightarrow$2)-$\alpha$-L-arabinopyranosyl hederagenin 28-O-$\alpha$-L-rhamnopyranosyl(1$\rightarrow$4)-$\beta$-D-glucopyranosyl(1$\rightarrow$6)-$\beta$-D-glucopyranosyl ester.

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