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

N-[(S)-1-((S)-2-Amino-3-methyl-butyryl)-pyrrolidin-2-ylmethyl]-N-cyclopropyl-acetamide

(S)-N-[4-(Acetyl-cyclopropyl-amino)-cyclohexyl]-2-amino-3-methyl-butyramide

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

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

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

{(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