(S)-2-Amino-1-(4-dimethylamino-piperidin-1-yl)-propan-1-one

(S)-2-Amino-1-{(S)-2-[(isopropyl-methyl-amino)-methyl]-pyrrolidin-1-yl}-propan-1-one

(S)-2-Amino-N-[2-(isopropyl-methyl-amino)-cyclohexyl]-propionamide

(S)-2-Amino-1-{2-[(cyclopropyl-methyl-amino)-methyl]-pyrrolidin-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