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

(S)-2-Amino-1-(4-dimethylaminomethyl-piperidin-1-yl)-3-methyl-butan-1-one

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

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

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

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

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

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

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