| Abstract
| - The absolute stereochemistry of the tricyclic, sesquiterpene ibhayinol (5) extracted from the sea hareAplysia dactylomela, collected in Algoa Bay, South Africa, was established as 1S, 3S, 4S, 6R, 7S, 10R,11S from a single-crystal X-ray diffraction experiment. The structure of ibhayinol suggested that8-dehydroxy-1-deacetylalgoane (7) might be a biosynthetic precursor of this compound.
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