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

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

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

[4-(Benzyl-isopropyl-amino)-cyclohexylamino]-acetic acid

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

(1R,4R)-[4-(Benzyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid

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

N-[1-(2-Hydroxy-ethyl)-piperidin-4-yl]-N-methyl-acetamide

N-[(S)-1-(2-Hydroxy-ethyl)-piperidin-3-yl]-N-methyl-acetamide

(1R,4R)-N-[4-(2-Hydroxy-ethylamino)-cyclohexyl]-N-methyl-acetamide

N-Ethyl-N-[(R)-1-(2-hydroxy-ethyl)-piperidin-3-yl]-acetamide