The present disclosure provides a compound represented by Formula (I) and a pharmaceutically acceptable salt which areeffective as a dopamine reuptake inhibitor and a method of using the compound: wherein X isindependently halo, alkyl, alkoxy or nitro; m is 0, 1, 2, 3 or 4; n is 1 or 2; R1 and R2 are independently H- or alkyl; R3 is H-, alkyl or aralkyl; and R4 isH- or aryl.本發明係提供一種有效作為多巴胺再吸收抑制劑之式(I)所示之化合物和藥理學上可接受之鹽,以及使用此化合物之方法:其中X各自為鹵素,烷基,烷氧基或硝基;m為0,1,2,3或4;n為1或2;R1及R2各自為H-或烷基;R3為H-,烷基或芳烷基;以及R4為H-或芳基。