(2R,5R)-tert-Butyl 5-(hydroxymethyl)-2-methylpiperazine-1-carboxylate

(S)-tert-Butyl 3-(trifluoromethyl)piperazine-1-carboxylate

(R)-tert-Butyl 3-(trifluoromethyl)piperazine-1-carboxylate

1-Methylpiperazin-2-one

tert-Butyl 2-propylpiperazine-1-carboxylate

1-(4-Benzoylpiperazin-1-yl)propan-1-one

1,4-Bis(2-chloroethyl)piperazine

tert-Butyl 4-(4-nitrobenzoyl)piperazine-1-carboxylate

(Z)-2-(4-(3-(2-Chloro-9H-thioxanthen-9-ylidene)propyl)piperazin-1-yl)ethanol

1,4-Bis((4-chlorophenyl)(phenyl)methyl)piperazine dihydrochloride