Isopsylloborine A, a new dimeric azaphenalene alkaloid from ladybird beetles (Coleoptera : Coccinellidae)

Authors
Lebrun, B Braekman, JC Daloze, D Kalushkov, P Pasteels, JM
Citation
B. Lebrun et al., Isopsylloborine A, a new dimeric azaphenalene alkaloid from ladybird beetles (Coleoptera : Coccinellidae), TETRAHEDR L, 40(46), 1999, pp. 8115-8116
Citations number
3
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
40
Issue
46
Year of publication
1999
Pages
8115 - 8116
Database
ISI
SICI code
0040-4039(19991112)40:46<8115:IAANDA>2.0.ZU;2-D
Abstract
A new dimeric azaphenalene alkaloid, isopsylloborine A (2), has been isolat ed from the ladybird beetles Halyzia 16-guttata and Vibidia 12-guttata, and its structure determined by 2D NMR methods. It is a double bond isomer of the recently described psylloborine A (1), which is also present in these b eetles as a minor alkaloid. (C) 1999 Published by Elsevier Science Ltd. Ail rights reserved.