2-(4-Acetyl-piperazin-1-yl)-5-chloroaniline

4-(4-Acetyl-1-piperazinyl)-3-amino-benzoic acid methyl ester

4-(4-Aminophenyl)piperazine-1-carboxylic acid tert-butyl ester

3-(4-Boc-piperazin-1-yl-methyl)-5-trifluoromethylaniline

Methyl 3-(1-piperazinyl)benzoate

3-(4-Ethoxycarbonylpiperazinyl)propanamine

3-(4-Cbz-piperazinyl)propanamine

Ethyl 2-(piperazin-1-yl)ethylcarbamate

1-(2-N-Boc-Aminoethyl)piperazine

1-(2-N-Boc-Aminoethyl)piperazine

N,N-BIS(2-CHLOROETHYL)BENZENEMETHANAMINE

N-Cbz-N,N-bis{2-[(methylsulfonyl)oxy]ethyl}-amine