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1-[3-Chloro-5-(trifluoromethyl)pyrid-2-yl]-piperazine

1-(2-Chlorobenzoyl)piperazine hydrochloride

1-(4-Ethoxybenzyl)piperazine

1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-homopiperazine hydrochloride

4-[5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl-piperazine-1-carboxylic acid tert-butyl ester

3,6-Bis(2-hydroxyethyl)-2,5-diketopiperazine

1-(Methylsulfonyl)piperazine hydrochloride

1-(Cyclopropylcarbonyl)piperazine hydrochloride

1-Isobutyrylpiperazine hydrochloride

2-(4-Phenyl-piperazine-1-carbonyl)-benzoic acid