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

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

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

(S)-2-Amino-1-{4-[(isopropyl-methyl-amino)-methyl]-piperidin-1-yl}-3-methyl-butan-1-one

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

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

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

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

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

(1R,4R)-[4-(Isopropyl-methyl-amino)-cyclohexylamino]-acetic acid

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