Chemistry and revised structure of suvanine

…, DJ Faulkner, FR Fronczek, RD Gandour

Index: Manes, Lawrence V.; Crews, Philip; Kernan, Michael R.; Faulkner, D. John; Fronczek, Frank R.; Gandour, Richard D. Journal of Organic Chemistry, 1988 , vol. 53, # 3 p. 570 - 575

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Citation Number: 53

Abstract

The structure la that was previously proposed for suvanine, a novel tricyclic sesterterpene from the sponge Ircinia sp., has been revised to lb. Structure lb includes a dimethylguanidinium salt of an enol sulfate and an amended ring-junction stereochemistry. These changes were established by interpretation of two-dimensional NMR data, preparation of cation exchange reaction products lc-g, and an X-ray analysis of a key ...