N-[1-((S)-2-Amino-3-methyl-butyryl)-piperidin-4-ylmethyl]-N-ethyl-acetamide

((R)-3-Acetylamino-piperidin-1-yl)-acetic acid

[4-(Acetylamino-methyl)-piperidin-1-yl]-acetic acid

(1R,4R)-[4-(Acetyl-methyl-amino)-cyclohexylamino]-acetic acid

[(S)-3-(Acetyl-ethyl-amino)-piperidin-1-yl]-acetic acid

[3-(Acetyl-isopropyl-amino)-piperidin-1-yl]-acetic acid

{3-[(Acetyl-isopropyl-amino)-methyl]-piperidin-1-yl}-acetic acid

[(S)-3-(Acetyl-cyclopropyl-amino)-piperidin-1-yl]-acetic acid

2-((S)-3-Dimethylamino-piperidin-1-yl)-ethanol

2-{3-[(Isopropyl-methyl-amino)-methyl]-pyrrolidin-1-yl}-ethanol

4-(2-Amino-acetyl)-piperazine-1,2-dicarboxylic acid 1-tert-butyl ester 2-methyl ester