The carbocyclic analogue of (+/-)-Rocaglamide 1, in which the ring oxygen o
f the 2,3-dihydrobenzofuran has been replaced by a methylene group, was syn
thesised in 10 steps from cyclopentanone. A key feature of this route is a
highly efficient intramolecular condensation reaction which cleanly leads t
o the tricyclic skeleton. (C) 1999 Elsevier Science Ltd. All rights reserve
d.