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

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

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

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

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

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

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

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

(4-Hydroxy-piperidin-1-yl)-acetic acid

2-[(1-Methyl-pyrrolidin-3-ylmethyl)-amino]-ethanol

2-[Methyl-(1-methyl-pyrrolidin-3-ylmethyl)-amino]-ethanol