2-[4-(1,3-Benzodioxol-5-ylmethyl)-1-piperazinyl]pyrimidine; 2-(4-Piperonyl-1-piperazinyl)pyrimidine; 1-(2-Pyrimidyl)-4-(3,4-methylenedioxybenzyl)piperazine; 1-(2-Pyrimidyl)-4-piperonylpiperazine; 4-[3,4-(Methylenedioxy)benzyl]-1-(2-pyrimidinyl)piperazine