<unk>  (ethyl apovincaminate) is a synthetic derivative of the vinca alkaloid vincamine. Vincamine is extracted from either the seeds of Voacanga africana or the leaves of Vinca minor (lesser periwinkle).
Vinpocetine
Reboxetine
Carpipramine
Pirlindole
Paroxetine
Nabilone
Trimipramine
Lorpiprazole