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

Tetrahedron Letters
1999.0

Abstract

A new dimeric azaphenalene alkaloid, isopsylloborine A (2), has been isolated 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 beetles as a minor alkaloid. (C) 1999 Published by Elsevier Science Ltd. Ail rights reserved.

DOI： 10.1016/S0040-4039(99)01752-9

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