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

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

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

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

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

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

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

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

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