(S)-2-Amino-1-[(R)-3-(benzyl-cyclopropyl-amino)-piperidin-1-yl]-propan-1-one

(S)-2-Amino-N-[2-(benzyl-ethyl-amino)-cyclohexyl]-3-methyl-butyramide

(S)-2-Amino-1-{2-[(benzyl-isopropyl-amino)-methyl]-piperidin-1-yl}-3-methyl-butan-1-one

{2-[(Benzyl-methyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid

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

{2-[(Benzyl-isopropyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid

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

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

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

N-[1-(2-Hydroxy-ethyl)-pyrrolidin-3-ylmethyl]-acetamide

N-[1-(2-Hydroxy-ethyl)-pyrrolidin-2-ylmethyl]-N-methyl-acetamide