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

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

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

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

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

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

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

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

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

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

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