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- W2281237698 abstract "Seven biflavones, amentoflavone, bilobetin, sequoiaflavone, ginkgetin, sciadopitysin, 7,4′,7′,4‴-tetra-O-methylamentoflavone, and diooflavone (amentoflavone hexamethyl ether), were identified from extracts of the cycad genus Dioon. The biflavones were identified by direct comparison with authentic samples using m.m.p., co-chromatography in 3 solvents, and NMR studies of the acetates. This is the first time amentoflavone hexamethyl ether has been identified as a natural product. After surveying numerous species of the Cycadales, no evidence could be obtained for the occurrence of biflavone glycosides or of biflavones based upon any other nucleus than apigenin." @default.
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- W2281237698 date "1973-02-01" @default.
- W2281237698 modified "2023-10-18" @default.
- W2281237698 title "Biflavones of Dioon" @default.
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- W2281237698 doi "https://doi.org/10.1016/0031-9422(73)80020-2" @default.
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