(1R,4R)-(S)-N-[4-(Acetyl-ethyl-amino)-cyclohexyl]-2-amino-3-methyl-butyramide

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

(1R,4R)-[4-(Acetyl-ethyl-amino)-cyclohexylamino]-acetic acid

[(S)-3-(Acetyl-isopropyl-amino)-piperidin-1-yl]-acetic acid

[4-(Acetyl-isopropyl-amino)-cyclohexylamino]-acetic acid

[4-(Acetyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid

[2-(Acetyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid

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

(1R,4R)-2-[4-(Isopropyl-methyl-amino)-cyclohexylamino]-ethanol

2-{4-[(Isopropyl-methyl-amino)-methyl]-piperidin-1-yl}-ethanol

4-((S)-2-Amino-3-methyl-butyryl)-piperazine-1-carboxylic acid tert-butyl ester