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

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

N-{4-[(2-Amino-ethyl)-cyclopropyl-amino]-cyclohexyl}-acetamide

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

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

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

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

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

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

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

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