((S)-1-Acetyl-pyrrolidin-3-ylamino)-acetic acid

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

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

(1R,4R)- [(4-Acetylamino-cyclohexyl)-ethyl-amino]-acetic acid

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

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

[(1-Acetyl-pyrrolidin-2-ylmethyl)-cyclopropyl-amino]-acetic acid

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

1-[(R)-3-(2-Hydroxy-ethylamino)-pyrrolidin-1-yl]-ethanone

1-{3-[(2-Hydroxy-ethylamino)-methyl]-pyrrolidin-1-yl}-ethanone

1-{3-[(2-Hydroxy-ethyl)-methyl-amino]-pyrrolidin-1-yl}-ethanone