(S)-2-Amino-1-(4-dimethylamino-piperidin-1-yl)-3-methyl-butan-1-one

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

[(R)-3-(Cyclopropyl-methyl-amino)-piperidin-1-yl]-acetic acid

{4-[(Cyclopropyl-methyl-amino)-methyl]-piperidin-1-yl}-acetic acid

1-Acetyl-4-(2-hydroxy-ethyl)-piperazine-2-carboxylic acid methyl ester

1-[4-(2-Hydroxy-ethyl)-3-methyl-piperazin-1-yl]-ethanone

4-(2-Amino-ethyl)-[1,4]diazepane-1-carboxylic acid tert-butyl ester

2-(3,4-Dimethyl-piperazin-1-yl)-ethylamine

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

4-((S)-2-Amino-3-methyl-butyryl)-[1,4]diazepane-1-carboxylic acid tert-butyl ester

4-(2-Amino-acetyl)-[1,4]diazepane-1-carboxylic acid tert-butyl ester