DEFENSE-MECHANISMS OF ANTHROPODS .119. ALKALOIDS OF THE MEXICAN BEAN BEETLE, EPILACHNA-VARIVESTIS (COCCINELLIDAE)

Authors
ATTYGALLE AB XU SC MCCORMICK KD MEINWALD J BLANKESPOOR CL EISNER T
Citation
Ab. Attygalle et al., DEFENSE-MECHANISMS OF ANTHROPODS .119. ALKALOIDS OF THE MEXICAN BEAN BEETLE, EPILACHNA-VARIVESTIS (COCCINELLIDAE), Tetrahedron, 49(41), 1993, pp. 9333-9342
Citations number
18
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron → ACNP
ISSN journal
00404020
Volume
49
Issue
41
Year of publication
1993
Pages
9333 - 9342
Database
ISI
SICI code
0040-4020(1993)49:41<9333:DOA.AO>2.0.ZU;2-A
Abstract
Two novel alkaloids, 2-(12-aminotridecyl)-pyrrolidine and its 1-(2-hyd roxyethyl) derivative, are characterized from extracts of adult Mexica n bean beetles. These pyrrolidines, together with a previously identif ied homotropane alkaloid, euphococcinine, account for 90% of the alkal oids present in this beetle. A number of piperidine derivatives are al so identified as minor components. The total mixture represents the mo st complex bouquet of alkaloids reported hitherto from any coccinellid beetle.