B. Lebrun et al., 2-DEHYDROCOCCINELLINE, A NEW DEFENSIVE ALKALOID FROM THE LADYBIRD BEETLE ANATIS-OCELLATA (COCCINELLIDAE), Journal of natural products, 60(11), 1997, pp. 1148-1149
2-Dehydrococcinelline (6), a novel coccinellid defensive alkaloid, has
been isolated from the European ladybird Anatis ocellata. Its structu
re was established by spectroscopic methods and confirmed by chemical
correlation with precoccinelline (1).