 3,4-Methylenedioxypyrovalerone (3,4-MDPV) is a prevalent member of α-pyrrolidinophenones, a group of new psychoactive substances, known for its strong psychostimulant effect resulting from potent stimulation of dopamine (DA) circuitry in the brain. As 3,4-MDPV and its derivatives are successively being scheduled, each year novel analogs appear on the market. This study aimed at examination and direct comparison of psychostimulant properties of structural isomer of 3,4-MDPV, namely 2,3-MDPV along with a model α-pyrrolidinophenone, pyrovalerone.