Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5166752 | Phytochemistry | 2008 | 14 Pages |
Abstract
Pittocaulon species contain mixed profiles of macrocyclic 1,2-unsaturated pyrrolizidine alkaloids and angeloylesters of different 1,2-saturated necine bases. A GC-MS method for an unequivocal assignment of the stereoisomeric 1,2-saturated necine bases and their discrimination by NMR is presented.
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Authors
Juan Camilo MarÃn Loaiza, Ludger Ernst, Till Beuerle, Claudine Theuring, Carlos L. Céspedes, Thomas Hartmann,