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New rearranged clerodane diterpenes from Tinospora baenzigeri
P Tuntiwachwuttikul1, W C Taylor
1Department of Chemistry Faculty of Science, Silpakorn University, Nakorn Pathom, Thailand. pittayat@su.ac.th
Chemical & Pharmaceutical Bulletin
|July 18, 2001
Abstract:
Baenzigeroside B, a new rearranged clerodane diterpene glucoside, was isolated from the stems of Tinospora baenzigeri. The aglycone of baenzigeroside B, baenzigeride B (isolated as its acetate), was found together with baenzigeride A, baenzigerosides A and B in the leaves of the same plant. Baenzigeride B and baenzigeroside B are the first examples of a new class of rearranged clerodane diterpenes. The possible biogenesis of the compounds is discussed.