Tags: Chemical Compound, Chemical Substance.
Ecgonine (tropane derivative) is a tropane alkaloid found naturally in coca leaves. It has a close structural relation to cocaine: it is both a metabolite and a precursor and as such it is a controlled substance as are all known substances which can be used as precursors to ecgonine itself. Structurally ecgonine is a cycloheptane derivative with a nitrogen bridge.