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1-(3,4-Dimethylphenyl)piperazine

1-(Ethylsulphonyl)piperazine

1-[2-Bromo-4-(methylsulfonyl)phenyl]piperazine

1-(4-Ethoxyphenyl)piperazine

1-(2-Ethylphenyl)piperazine

1-(2-Ethoxyethyl)piperazine

1-Biphenyl-4-yl-piperazine

1-(3,5-Bistrifluoromethylphenyl)piperazine

1-(3-Biphenylyl)piperazine

1-(4,6-Dimethyl-2-pyrimidyl)piperazine

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