• 제목/요약/키워드: Iodine-induced cyclization

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Ailanthoidol Derivatives and their Anti-inflammatory Effects

  • Lee, Na-Li;Lee, Jae-Jun;Kim, Jin-Kyung;Jun, Jong-Gab
    • Bulletin of the Korean Chemical Society
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    • 제33권6호
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    • pp.1907-1912
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    • 2012
  • Ailanthoidol showed a strong $anti$-inflammatory effect in a previous result. Ailanthoidol derivatives were prepared for the $anti$-inflammatory test using Sonogashira coupling, iodine induced cyclization and Wittig reaction. $Anti$-inflammatory effects of the prepared ailanthoidol derivatives were examined in lipopolysaccharide (LPS)-stimulated RAW 264-7 macrophages. The results showed that some ailanthoidol derivatives inhibited significantly the production of inflammatory mediator nitric oxide.

Facile Preparation of 2-Arylbenzo[b]furan Molecules and Their Anti-inflammatory Effects

  • Hwang, Jung-Woon;Choi, Da-Hye;Jeon, Jae-Ho;Kim, Jin-Kyung;Jun, Jong-Gab
    • Bulletin of the Korean Chemical Society
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    • 제31권4호
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    • pp.965-970
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    • 2010
  • An efficient and practical preparation of 2-arylbenzo[b]furan molecules including natural egonol, XH-14, ailanthoidol, and unnatural derivatives is demonstrated using Sonogashira coupling, iodine induced cyclization and Wittig reaction. Anti-inflammatory effects of the prepared benzo[b]furans were examined in lipopolysaccharide (LPS)-stimulated RAW 264-7 macrophages. The results showed that ailanthoidol, XH-14 and three other unnatural derivatives (9-10, 13) inhibited significantly the production of inflammatory mediator nitric oxide without showing cytotoxicity.