1-{3-[(2-Amino-ethyl)-cyclopropyl-amino]-piperidin-1-yl}-ethanone

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

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

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

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

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

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

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

[Cyclopropyl-(4-dimethylamino-cyclohexyl)-amino]-acetic acid

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

(3-Hydroxy-pyrrolidin-1-yl)-acetic acid