Fern constituents: Cycloartane triterpenoids and allied compounds from Polypodium formosanum and P. niponicum |
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| Authors: | Hiroyuki Ageta Yôko Arai |
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| Institution: | Shôwa College of Pharmaceutical Sciences, 5-1-8 Tsurumaki, Setagaya-ku, Tokyo 154 Japan |
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| Abstract: | From the rhizomes of Polypodium formosanum, new triterpenoids of the cycloartane group, (24R)-cyclolaudenol and (24R)-cyclomargenol, were isolated as the corresponding acetates, alcohols and ketones, and their structures were established. Also, from the rhizomes of P. niponicum eight acetates of cycloartane derivatives and two acetates of new methyl sterols were isolated and characterized. |
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| Keywords: | Polypodiaceae cycloartane triterpenoids 24-ethyl-9 19-cyclolanost-25-en-3β-yl acetate |
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