Chilocorine C: A new 'dimeric' alkaloid from a coccinellid beetle, Chilocorus cacti

Qing Huang, Athula B. Attygalle, Jerrold Meinwald, Marilyn A. Houck, Thomas Eisner

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Abstract

A new hexacyclic alkaloid, chilocorine C (4), has been isolated from Chilocorus cacti and. characterized on the basis of its IR, UV, MS, and NMR data. Although its structure is closely related to that of exochomine (1) (isolated from Exochomus quadripustulatus) and to chilocorine A (2) and B (3) (obtained previously from C. cacti), the presence of a hydroxymethyl substituent on the saturated tricyclic moiety represents an unexpected structural variation on the dimeric alkaloid theme.

Original languageEnglish
Pages (from-to)598-601
Number of pages4
JournalJournal of Natural Products
Volume61
Issue number5
DOIs
StatePublished - May 1998

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