1-(2-Phenylethyl)pyrrolidine (PEP) is a chemical compound. It is an analogue of 2-phenylethylamine where the amine has been replaced by a pyrrolidine ring.

It is the base chemical structure for a series of stimulant drugs, including:

All of these compounds differ from PEP in that the alpha carbon is extended and a ketone is attached to the beta carbon (with the exception of prolintane), among other modifications.

See also