• Title/Summary/Keyword: Madecassol

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Formation of Methyl 2${\beta},\;3{\beta}$-Epoxy-23-hydroxyurs-12-en-28-oate from Asiaticoside and Its Reductive Epoxide Ring Opening Reaction (아시아티코사이드로부터 메칠 2${\beta},\;3{\beta}$-에폭시-23- 히드록시우르스-12-엔-28-오애이트의 합성 및 이의 환원적 에폭시환 개열반응)

  • Jew, Sang-Sup;Lim, Doo-Yeon;Seo, Sung-Ki;Nam, Tae-Gyu;Park, Hyeung-Geun;Kim, Hee-Doo;Kim, Chang-Min;Lee, Min-Hee;Paik, Hyeung-Geun;Lee, Min-Jung;Jung, Young-Hoon
    • YAKHAK HOEJI
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    • v.42 no.5
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    • pp.500-506
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    • 1998

  • Steroidal 2${\beta},\;3{\beta}$--epoxy compound was prepared from asiaticoside via six steps and reduced regioselectively with lithium aluminum hydride. Epoxide ring opening furnished 9 as a sole product at reflux condition through axial hydride attack at C-3.

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