• 제목/요약/키워드: Triterpene

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오갈피나무 잎의 트리테르펜 성분 (Triterpene Components from the Leaves of Acanthopanax sessiliflorus Seem)

  • 류효선;장승엽;육창수;박상용
    • 생약학회지
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    • 제34권4호통권135호
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    • pp.269-273
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    • 2003
  • The leaves of Acanthopanax sessiliflorus Seem. (Araliaceae), which is native plant to Korea, have not been studied yet on triterpene constituents. Three 3,4-seco-lupane triterpenoids (Compound I-III) were isolated from the MeOH extract of this plant using Diaion HP-20P, silica gel and ODS column chromatographes. Based on physicochemical and spectroscopic data, the chemical structures of these compounds were identified as follows ; chiisanogenin (Compound I), chiisanoside (Compound II), $22{\alpha}-hydroxychiisanoside$ (Compound III).

Structure Determination of a New Lupane-type Triterpene, Tiarellic Acid, Isolated from Tiarella polyphylla

  • Lee, Hyeong-Kyu;Park, Si-Hyung;Oh, Sei-Ryang;Ahn, Kyung-Seop;Kim, Jae-Gil
    • Archives of Pharmacal Research
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    • 제25권1호
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    • pp.57-60
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    • 2002
  • A new 27-carboxylic lupane-type triterpene, tiarellic acid (1), was isolated from Tiarella polyphylla together with corosolic acid (2) and tormentic acid (3). Tiarellic acid was characterized as 3,23-dihydroxy-20(29)-lupen-27-oic acid and its NMR data were unambiguously assigned using 2-D NMR techniques.

A Novel Cycloartane Glycoside from Thalictrum uchiyamai

  • Choi, Young-Hee;Kim, Nan-Gyeong;Lee, Ihn-Ran
    • Archives of Pharmacal Research
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    • 제19권5호
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    • pp.429-431
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    • 1996
  • A new cycloartane glycoside (1) was isolated from the aerial part of Thalictrum uchiyamai Nakai (Ranunculaceae). On the basis of chemical and physicochemical evidence, the aglycone structure of this compound was characterized as 116, 25-dihydroxy-3, 24-diacetoxy-9, 19-cycloartane-29-oic acid, a new derivative of cycloartane triterpene. Also the oli-gosaccharide moiety of this glycoside were determined as 29-O-${alpha}$-L-rhanmnopyranosyl- ($1rightarrow2$)-[${beta}$-D-xylofuranosyl-($1rightarrow6$)-${beta}$-D-glucopyranose by application of HMBC technoque. Consequently, the structure of compound 1 was elucidated as 29-O-${alpha}$-L-rhanmnopyranosy-($1rightarrow2$)-[${beta}$-D-xylofuranosyl-($1rightarrow6$)-${beta}$-D-glucopyranosyl-16, 25-dihydroxy-3, 24-diacetoxy-9, 19-cycloartane-29-oic acid ester.

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A Cipadesin Limonoid and a Tirucallane Triterpene from the Fruit of Sandoricum koetjape and their Inhibitory Properties against Receptor Tyrosine Kinases

  • Rachmadhaningtiyas, Dyah Ayu;Heliawati, Leny;Hermawati, Elvira;Syah, Yana Maolana
    • Natural Product Sciences
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    • 제27권2호
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    • pp.134-139
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    • 2021
  • A new cipadesin limonoid, i.e. 3-epi-cipadonoid C (1), and a new tirucallane triterpene, i.e. hispidol B 3-palmitate (3), have been isolated from the seeds and fruit peels extract of Sandoricum koetjape, respectively. Along with these compounds the known limonoid, cipaferen G (2), and two pentacyclic triterpenes, bryonolic (4) and bryononic (5) acids, were also isolated. The strucrures of the new compounds were elucidated by the analysis of NMR and mass spectral data. Compounds 1 - 5 were evaluated as the inhibitor of receptor tyrosine kinases (EGFR, Epidermal Growth Factor Receptor; HER2, HER4, Human Epidermal growth factor Receptor 2, -4; IGFR, Insulin-like Growth Factor Receptor; InsR, Insulin Receptor; KDR, Kinase insert Domain Receptor; PDGFRα, and PDGFRβ, Platelet-Derived Growth Factor Receptor-α and -β). The results showed only 1 and 3 that have weak activity against InsR.