Attention deficit hyperactivity disorder management
There are two major medications derived from methylphenidate's isomers: a racemic mixture of half d-threo-methylphenidate and half l-threo-methylphenidate called methylphenidate (Ritalin, Concerta), and an enantiopure formulation containing just d-threo-methylphenidate called dexmethylphenidate (Focalin).
List of cocaine analogues
Convolamine: 
Phyllalbine: 
Meteloidine: 
Similarly, many natural tropane alkaloids found in plants of various families have benzoyl tropane structures. Including; catuabine, convolamine of the "convolvulaceae" & phyllalbine of "euphorbiaceae" ("Phyllanthus discoïdes") families. The latter is a central and peripheral sympathomimetic drug. Phyllalbine is also to methylvanillylecgonine what tropacocaine, as a metabolite, is to cocaine. Likewise vanillin would be a hydrolytic degradation product of phyllalbine just as methyl benzoate is for cocaine. The alkaloid Meteloidine, found in Datura & Brugmansia, is tentatively also extant in the Australian Erythroxylum species.