Platanionosides D-J: megastigmane glycosides from the leaves of Alangium platanifolium (Sieb. et Zucc.) Harms var. platanifolium Sieb. et Zucc |
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Authors: | Otsuka Hideaki Tamaki Akie |
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Institution: | Institute of Pharmaceutical Sciences, Hiroshima University Faculty of Medicine, Japan. hotsuka@hiroshima-u.ac.jp |
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Abstract: | From the leaves of Alangium paltanifolium var. platanifolium, collected in Fukuoka Prefecture, twelve further megastigmane glycosides were isolated. Seven of them, named platanionosides D-J (1-7), were found to be new compounds. Their structures were elucidated from spectroscopic evidence and their absolute structures were determined from beta-D-glucosylation-induced shift trends of 13C-NMR and by application of a modified Mosher's method. |
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