Phenylbutanoid dimers from the leaves of Alpinia flabellata |
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Authors: | Kikuzaki H Tesaki S Yonemori S Nakatani N |
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Institution: | Faculty of Human Life Science, Osaka City University, Sumiyoshi, Japan. |
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Abstract: | Three phenylbutanoid dimers, cis- and trans-1-(2,4,5-trimethoxy-E-styryl)-2-(2,4,5-trimethoxy-Z-styryl)cyclobutane and 1,2-bis(2,4,5-trimethoxy-Z-styryl)- cyclobutane, were isolated from the leaves of Alpinia flabellata Ridley, together with three known compounds (2,4,5-trimethoxybenzaldehyde, 2,4,5-trimethoxycinnamaldehyde and 3,5-dihydroxy-7,4'-dimethoxyflavone). The structures of these compounds were determined by spectroscopic analysis. |
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