The structures of three new Galbulimima alkaloids |
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| Authors: | Lewis N. Mander Anthony C. Willis Walter C. Taylor |
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| Affiliation: | a Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia
b School of Chemistry, University of Sydney, NSW 2006, Australia |
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| Abstract: | The structures of three new alkaloids isolated from the bark of the rain forest tree Galbulimima belgraveana, have been determined by a combination of NMR spectroscopy and X-ray crystallography. One of the alkaloids, himgrine (5), was shown to be an oxygenated derivative of himbacine (1), while the second, GB16, (8) proved to be identical with a degradation product from himgaline (4). The remaining alkaloid, GB17 (12) possesses an entirely new and unexpected skeleton. |
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| Keywords: | Galbulimima belgraveana Alkaloids Novel structures Biosynthesis |
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