(S)-2-Amino-1-((S)-2-dimethylaminomethyl-pyrrolidin-1-yl)-propan-1-one

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

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

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

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

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

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

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

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

{(S)-2-[(Cyclopropyl-methyl-amino)-methyl]-pyrrolidin-1-yl}-acetic acid

4-(2-Hydroxy-ethyl)-3-methyl-piperazine-1-carboxylic acid tert-butyl ester