Article révisé par les pairs
Résumé : Chilocorine D, a new heptacyclic 'dimeric' alkaloid, has been isolated from the coccinellid beetle Chilocorus renipustulatus and its structure determined by 1D and 2D NMR analyses. It is constituted of a hippodamine moiety linked to a modified octahydro-azaacenaphtylene skeleton encompassing a seven-membered ring. © 2002 Elsevier Science Ltd. All rights reserved.