usaramine
National Institutes of Health
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Introduccion: la busqueda de metabolitos de origen natural, con actividad biologica promisoria, particularmente la actividad…
The pyrrolizidine alkaloid content of Solanecio gigas (Vatke) C. Jeffrey (Asteraceae), an Ethiopian medicinal plant widely used…
Foraging on a variety of different food items allows individuals to balance nutrient intake, but it also may dilute toxins…
Two toxic pyrrolizidine alkaloids were isolated from Senecio nevadensis and their structures determined by spectroscopic methods…
Senecio vulgaris L. (Compositae) has previously been examined for hepatotoxic pyrrolizidine alkaloids. Seneciphylline…
Ten 12-membered macrocyclic pyrrolizidine alkaloids, all of them esters of the necines, retronecine or otonecine, have been…
The mechanisms of fragmentation of retusine, spectabiline, usaramine and diacetyl-monocrotaline were studied by means of exact…