(S)-2-Amino-N-((S)-1-benzyl-pyrrolidin-2-ylmethyl)-3-methyl-butyramide

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

2-[{(1-Acetyl-piperidin-3-yl)methyl}amino]acetic acid

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

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

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

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

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

1-[(S)-3-(2-Hydroxy-ethylamino)-piperidin-1-yl]-ethanone

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

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