The Alkaloids of Senecio jacobaea L.

Abstract

The following five alkaloids have been isolated from Senecio jacobaea L. (ragwort) : seneciphylline, C₁₈H₂₃O₅N ; jacobine, C₁₈H₂₅O₆N ; jacozine, C₁₈H₂₃O₆N ; jaconine, C₂₀H₃₂O₇NCl; and jacoline, C₁₈H₂₇O₇N. Jacodine which has been identified as seneciphylline, jacobine and jaconine have been isolated from this species by earlier workers, but jacozine and jacoline are new alkaloids.