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

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

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

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

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

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

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

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

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

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

N-Cyclopropyl-N-[1-(2-hydroxy-ethyl)-pyrrolidin-3-yl]-acetamide