Pyrrolizidine alkaloids from Senecio nevadensis.
Two toxic pyrrolizidine alkaloids were isolated from Senecio nevadensis and their structures determined by spectroscopic methods. For the first time, a very complete structural assignment of all spectral data of alkaloid usaramine is given.
Laboratorium für Naturstoffchemie (LfN), Bornheim-Roisdorf, Federal Republic of Germany.
T
T
Bourauel
C
C
Plassmeier
E
E
Roeder
D009682:Magnetic Resonance Spectroscopy; D010947:Plants, Toxic; D011763:Pyrrolizidine Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D012674:Senecio / Q000737:chemistry*; D013057:Spectrum Analysis
D011763:Pyrrolizidine Alkaloids