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

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

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

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

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

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

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

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

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

N-[(R)-1-(2-Hydroxy-ethyl)-pyrrolidin-3-yl]-N-methyl-acetamide

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