(S)-2-Amino-1-((S)-3-dimethylamino-piperidin-1-yl)-propan-1-one

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

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

(S)-2-Amino-1-{2-[(isopropyl-methyl-amino)-methyl]-piperidin-1-yl}-3-methyl-butan-1-one

(S)-2-Amino-1-[(R)-3-(cyclopropyl-methyl-amino)-piperidin-1-yl]-3-methyl-butan-1-one

(S)-2-Amino-1-{4-[(cyclopropyl-methyl-amino)-methyl]-piperidin-1-yl}-3-methyl-butan-1-one

(2-Dimethylaminomethyl-piperidin-1-yl)-acetic acid

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

[2-(Isopropyl-methyl-amino)-cyclohexylamino]-acetic acid

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

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