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

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

(S)-2-Amino-1-{2-[(isopropyl-methyl-amino)-methyl]-pyrrolidin-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-{(S)-2-[(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-piperidin-1-yl)-acetic acid

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

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

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

4-(2-Hydroxy-ethyl)-piperazine-1,2-dicarboxylic acid 1-benzyl ester 2-methyl ester