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Calycilactone A, a novel hexacyclic alkaloid from Daphniphyllum calycillum
Authors:Ying-Tong Di  Hong-Ping He  Zhi-Zhi Du  Xian-Wen Yang  Xiao-Jiang Hao
Institution:a State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
b Graduate School of Chinese Academy of Sciences, Beijing 100039, PR China
Abstract:A novel Daphniphyllum alkaloid with a rearranged fused-hexacyclic ring system, calycilactone A, was isolated from the leaves of Daphniphyllum calycillum (Daphniphyllaceae), and the structure and relative stereochemistry of the new compound were elucidated on the basis of spectroscopic data.
Keywords:Alkaloid  Daphniphyllaceae  Daphniphyllum calycillum  Calycilactone A  NMR
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