(S)-2-Amino-1-((R)-3-dimethylamino-piperidin-1-yl)-3-methyl-butan-1-one

((S)-3-Dimethylamino-pyrrolidin-1-yl)-acetic acid

(S)-2-Amino-N-[2-(cyclopropyl-methyl-amino)-cyclohexyl]-3-methyl-butyramide

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

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

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

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

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

4-(2-Hydroxy-ethyl)-2-methyl-piperazine-1-carboxylic acid benzyl ester

1-[4-(2-Hydroxy-ethyl)-2-methyl-piperazin-1-yl]-ethanone

4-(2-Amino-ethyl)-3-methyl-piperazine-1-carboxylic acid benzyl ester