otosenine
National Institutes of Health
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Usually whole plant or whole leaf extracts are analyzed to study the chemical ecology of insect-plant interactions. For herbivore…
Pyrrolizidine alkaloids (PAs) are part of the constitutive chemical defence against herbivores. PA composition in plants is…
Alkaloid profiles of five Senecio species (Asteraceae), including S. ambiguus subsp. ambiguus, S. ambiguus subsp. nebrodensis, S…
Ten pyrrolizidine alkaloids (PA) were isolated from Senecio ambraceus, Senecio arcticus, and Nonea pulla growing on Mongolian…
Ten 12-membered macrocyclic pyrrolizidine alkaloids, all of them esters of the necines, retronecine or otonecine, have been…
The pyrrolizidine alkaloid otosenine has been isolated from the aerial parts of the golden ragwort, Senecio aureus. The golden…
Continuing a study of Senecio othonnae collected in Azerbaidzhan (Khizy region) [i], we have separated on a column of alumina the…
Summary1. Two known alkaloids, otosenine and floridanine, and a new alkaloid doronine have been isolated from the roots…