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

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

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

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

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

[(1-Acetyl-piperidin-2-ylmethyl)-isopropyl-amino]-acetic acid

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

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

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

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

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

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

(1R,4R)-N-{4-[(2-Hydroxy-ethyl)-methyl-amino]-cyclohexyl}-acetamide

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

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