1-{(S)-3-[Cyclopropyl-(2-hydroxy-ethyl)-amino]-piperidin-1-yl}-ethanone

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

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

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

(2-Dimethylamino-cyclohexylamino)-acetic acid

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

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

[Ethyl-(1-methyl-piperidin-4-yl)-amino]-acetic acid

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

[Isopropyl-(1-methyl-piperidin-4-ylmethyl)-amino]-acetic acid

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