(3S,3aR,6S,7aR)-3-{2-[(3R,3aS,6R,7aS)-6-Hydroxy-6-methyl-5-methyleneperhydrobenzo[b]furan-3-yl]ethyl}-6-methyl-5-methyleneperhydrobenzo[b]furan-6-ol

The dimeric title compound was isolated from a samarium-io- dide-mediated radical-cascade sequence of methylenecyclo- propyl ketone. The molecule lies about an inversion centre and the X-ray analysis established the stereochemistry.

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