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

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

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

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

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

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

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

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

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

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

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