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

(S)-2-Amino-1-{4-[(isopropyl-methyl-amino)-methyl]-piperidin-1-yl}-propan-1-one

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

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

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

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

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

(S)-2-Amino-1-[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

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

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

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

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

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

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