A concise approach towards the bicyclo[3.3.1]nonan-9-one core present in the phloroglucin natural product hyperforin

An approach towards the bicyclo[3.3.1]nonan-9-one core present in the bioactive phloroglucin natural product hyperforin is delineated in which the key C8 stereogenic quaternary centre is appropriately installed. (C) 2007 Elsevier Ltd. All rights reserved.