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

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

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

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

(2-Dimethylamino-cyclohexylamino)-acetic acid

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

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

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

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

(1R,4R)-[Cyclopropyl-(4-dimethylamino-cyclohexyl)-amino]-acetic acid