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

(S)-2-Amino-N-[4-(cyclopropyl-methyl-amino)-cyclohexyl]-propionamide

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

(S)-2-Amino-N-[4-(cyclopropyl-methyl-amino)-cyclohexyl]-3-methyl-butyramide

(S)-2-Amino-N-[2-(cyclopropyl-methyl-amino)-cyclohexyl]-3-methyl-butyramide

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

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

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

4-(2-Hydroxy-ethyl)-[1,4]diazepane-1-carboxylic acid benzyl ester