Complex sentence: Desoxypipradrol, also known as 2-diphenylmethylpiperidine (2-DPMP), is psychoactive drug and research chemical of the piperidine chemical class which acts as a long-lasting stimulant via functioning as a norepinephrine-dopamine reuptake inhibitor (NDRI).
Split into simpler sentences: Desoxypipradrol, also known as 2-diphenylmethylpiperidine (2-DPMP), is a long-lasting psychostimulant. It acts as a norepinephrine-dopamine reuptake inhibitor (NDRI).