N-[(S)-1-((S)-2-Amino-3-methyl-butyryl)-piperidin-3-yl]-N-cyclopropyl-acetamide

{(S)-2-[(Acetyl-ethyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid

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

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

[2-(Acetyl-ethyl-amino)-cyclohexylamino]-acetic acid

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

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

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

2-(2-Dimethylaminomethyl-pyrrolidin-1-yl)-ethanol

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

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