[2-(Acetylamino-methyl)-pyrrolidin-1-yl]-acetic acid

[2-(Acetylamino-methyl)-piperidin-1-yl]-acetic acid

(4-Acetylamino-piperidin-1-yl)-acetic acid

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

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

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

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

[4-(Acetyl-isopropyl-amino)-piperidin-1-yl]-acetic acid

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

{(S)-2-[(Acetyl-cyclopropyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid

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