[(S)-3-(Cyclopropyl-methyl-amino)-pyrrolidin-1-yl]-acetic acid

[2-(Cyclopropyl-methyl-amino)-cyclohexylamino]-acetic acid

4-(2-Hydroxy-ethyl)-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

4-(2-Hydroxy-ethyl)-piperazine-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester

2-(2,4-Dimethyl-piperazin-1-yl)-ethanol

4-(2-Amino-ethyl)-2-methyl-piperazine-1-carboxylic acid benzyl ester

4-(2-Chloro-acetyl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester

4-(2-Chloro-acetyl)-[1,4]diazepane-1-carboxylic acid benzyl ester

4-(2-Chloro-acetyl)-2-methyl-piperazine-1-carboxylic acid benzyl ester

4-((S)-2-Amino-3-methyl-butyryl)-piperazine-1-carboxylic acid benzyl ester

4-Carboxymethyl-[1,4]diazepane-1-carboxylic acid tert-butyl ester

(4-Acetyl-3-methyl-piperazin-1-yl)-acetic acid

2-(2,5-Dichloro-benzylamino)-ethanol

2-[(2,4-Dichloro-benzyl)-methyl-amino]-ethanol

2-[Ethyl-(4-methoxy-benzyl)-amino]-ethanol