Tursch, B.Daloze, D.Braekman, J. C.Hootele, C.Cravador, A.Losman, D.Karlsson, R.2015-06-152015-06-1519740040-4039AUT: ACR00659;http://hdl.handle.net/10400.1/6155In a previous communication (2) the isolation of two defensive alkaloid, hippodamine and convergine, from the American ladybug Hippodamia convergens was reported. A preliminary chemical study (2) led to the hypothesis that hippodamine could be represented by (1), with unknown stereochemistry at carbon atom 2. Convergine was supposed to be a 3a or 6a hydroxyhippodamine.engjournal article