Synthetic approach to grayanotoxins and asebotoxins: a new construction of the a-homograyanotoxane ring system |
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Authors: | Tetsuji Kametani Hiroo Matsumoto Toshio Honda Keiichiro Fukumoto |
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Affiliation: | Hoshi College of Pharmacy, Ebara 2-4-41, Shinagawaku, Tokyo142, Japan;Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980, Japan |
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Abstract: | The tetracyclic compounds ~3 and ~4 corresponding to A-homograyanotoxane system were synthesised by a thermolysis of the benzocyclobutene ~8, followed by a Wagner-Meerwein rearrangement of the kaurane type of compounds ~15 and ~16. |
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