(2S),(2''S)-8,8''-5'-trihydroxy-7,7''-3,3''-4,4''-5''-heptamethoxy-5,5''-biflavan A biflavonoid obtained by coupling of 8,3'-dihydroxy-7,4',5'-trimethoxyflavan and 8-hydroxy-7,3',4',5'-tetramethoxyflavan resulting in a bond between C-5 positions of the two chromene rings. Isolated from Muntingia calabura, it exhibits antineoplastic activity. |
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