• 제목/요약/키워드: oplodiol

검색결과 3건 처리시간 0.015초

Sesquiterpene Components from the Flower Buds of Magnolia fargesii

  • Jung, Keun-Young;Kim, Dong-Seon;Oh, Sei-Ryang;Lee, Im-Seon;Lee, Jung-Joon;Lee, Hyeong-Kyu;Shin, Dong-Hyuk;Kim, Eun-Hee;Cheong, Chae-Joon
    • Archives of Pharmacal Research
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    • 제20권4호
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    • pp.363-367
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    • 1997
  • From the Chinese crude drug shin-i, the flower buds of Magnolia fargesii, four sesquiterpene, oplopanoe (1), oplodiol (2), homalomenol A (3) and $1{\beta},4{\beta},7{\alpha}$-trihydroxyeudesmane (4) were isolated. These structures were elucidated and the ${13}^C-NMR$ chemical shifts of these compounds were revised by means of various 2D-NMR techniques.

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Phytochemical Constitutes of Artemisia japonica ssp. littoricola

  • Kwon, Hak-Cheol;Lee, Kang-Ro
    • Archives of Pharmacal Research
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    • 제24권3호
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    • pp.194-197
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    • 2001
  • The phytochemical study of the aerial parts of Artemisia japonica ssp. littoricola (Asteraceae) led to the isolation of two acetylenic compounds, (3R)-dehydrofalcarinol (2) and (3R)-dehydrofalcarindiol (6), two sesquiterpenes, $1{\beta}$, $6{\alpha}$-dihydroxy-4(15)-eudesmene (5) and oplodiol (8), and four phenolic compounds, eugenol (1), vanillin (3), 3'-methoxy-4'- hydroxy-trrans-cinnamaldehyde (4) and p-hydroxyacetophenone (7). Their structures were determined by chemical and spectroscopic methods.

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신이(辛夷)로부터 멜라닌 생성 억제물질의 분리 (Isolation of Melanin Biosynthesis Inhibitory Compounds from the Flowers of Magnolia denudata)

  • 허광화;김정아;박성희;손애량;장태수;장현욱;정시련;이승호
    • 생약학회지
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    • 제35권2호통권137호
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    • pp.152-156
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    • 2004
  • The bioassay-guided fractionation of the MeOH extract of the flowers of Magnolia denudata led us to the isolation of six compounds identified as fargesin(1), kobusin(2), aschantin(3), magnolin(4), rel-[7s,8s,8's]-3,4,3',4'-tetra- methoxy-9,7'- dihydroxy-8,8',7.O.9'-lignan(5) and oplodiol(6), respectively. Among the isolated compounds, fargesin(1) showed most potent inhibitory effect on the melanin polymer biosynthesis in cultured B-16 mouse melanoma cell lines$(IC_{50},\;45.7\;{\mu}M)$.