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Calyciphyllines E and F, novel hepta- and pentacyclic alkaloids from Daphniphyllum calycinum
Authors:Shizuka Saito
Institution:Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
Abstract:Two new Daphniphyllum alkaloids, calyciphyllines E (1) and F (2), have been isolated from the leaves of Daphniphyllum calycinum (Daphniphyllaceae), and the structures and relative stereochemistry were elucidated on the basis of spectroscopic data.
Keywords:Daphniphyllum calycinum  Daphniphyllum alkaloid  Calyciphylline
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