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

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

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

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

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

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

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

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

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

(2-Hydroxymethyl-pyrrolidin-1-yl)-acetic acid

2-[((S)-1-Methyl-pyrrolidin-2-ylmethyl)-amino]-ethanol