(S)-2-Amino-N-(1-benzyl-piperidin-3-yl)-N-isopropyl-3-methyl-butyramide

((R)-1-Acetyl-piperidin-3-ylamino)-acetic acid

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

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

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

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

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

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

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

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

N-{4-[(2-Hydroxy-ethyl)-methyl-amino]-cyclohexyl}-acetamide