(1R,4R)- (4-Dimethylamino-cyclohexylamino)-acetic acid

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

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

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

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

2-(1-Methyl-piperidin-3-ylamino)-ethanol

2-[Methyl-(1-methyl-piperidin-4-yl)-amino]-ethanol

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

2-[Ethyl-((R)-1-methyl-piperidin-3-yl)-amino]-ethanol

2-[Isopropyl-((R)-1-methyl-piperidin-3-yl)-amino]-ethanol

(1R,4R)-2-[(4-Dimethylamino-cyclohexyl)-isopropyl-amino]-ethanol