A basic, nitrogen-containing compound of plant origin. Included here are aporphines, cinchona, curare, ergot, opium, belladonna, rauwolfia, and vinca alkaloids, among others.
(=> (Alkaloid ?Self)
(And (Exists (?A) (And (Derivative-Of ?Self ?A) (Plant ?A)))
(Exists (?B) (And (Component ?Self ?B) (Nitrogen ?B)))))