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Symon AV, Kaplun AP, Vlasenkova NK, Gerasimova GK, Le Bang Shon, Litvin EF, Kozlova LM, Surkova EL, Shvets VI. Epimerization of Hydroxyl Group in Lupan Series Triterpenoids. Russian Journal of Bioorganic Chemistry. 2003 Mar;29(2):185–9. doi: 10.1023/a:1023220701797. |