An approach to a model compound for polycyclic polyprenylated acylphloroglucinols
is developed using a ring-closing metathesis approach to give a substituted cyclooctene.
This undergoes cyclization via an intramolecular acylation leading to a substituted
bicyclo[3.3.1]nonan-9-one related to hyperforin, nemorosone, clusianone, garsubellin
A and other members of the polyprenylated acylphloroglucinol.
Key words
bicyclic compounds - natural products - metathesis - alkene acylation - steric hindrance