Chilocorine: heptacyclic alkaloid from a coccinellid beetle

Kevin D. McCormick, Athula B. Attygalle, Shang Cheng Xu, Aleš Svatoš, Jerrold Meinwald, Marilyn A. Houck, Curtis L. Blankespoor, Thomas Eisner

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

A novel heptacyclic alkaloid, for which we coin the name chilocorine, was isolated from a ladybird beetle, Chilocorus cacti. It has a unique structure made up of two tricyclic substructures, 2-methylperhydro-9b-azaphenalene and 3,4-dimethyloctahydro-8b-azaacenaphthylene. The proposed structure is based on mass spectrometric, ultraviolet spectroscopic, and NMR evidence.

Original languageEnglish
Pages (from-to)2365-2372
Number of pages8
JournalTetrahedron
Volume50
Issue number8
DOIs
StatePublished - 21 Feb 1994

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