Pyrrolizidine alkaloids (PA's), potentially toxic natural secondary products, are found within the plant family Boraginaceae.  A chemosystematic PA focused review of the borage genus Onosmodium will be conducted based on both previous work and current research.  Current efforts will analyze for the first time the species O. molle and O. bejariense var. hispidissimum.  Preliminary GC-MS analysis of O. molle has established the presence of a lycopsamine type monoester.  Further instrumental analysis utilizing NMR will further elucidate the structural details.  Alkaloid content comparisons will be made with the other previously examined North American species.

Pyrrolizidine alkaloid chemosystematics of the genus <i>Onosmodium</i>

245th National Meeting (2013)

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Pyrrolizidine alkaloid chemosystematics of the genus Onosmodium