1-(4-{[(2-Amino-ethyl)-isopropyl-amino]-methyl}-piperidin-1-yl)-ethanone

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

N-{2-[(2-Amino-ethyl)-cyclopropyl-amino]-cyclohexyl}-acetamide

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

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

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

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

[(2-Dimethylamino-cyclohexyl)-isopropyl-amino]-acetic acid

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

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

((S)-3-Hydroxy-piperidin-1-yl)-acetic acid