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

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

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

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

[(S)-3-(Benzyl-ethyl-amino)-pyrrolidin-1-yl]-acetic acid

[(R)-3-(Benzyl-ethyl-amino)-piperidin-1-yl]-acetic acid

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

[4-(Benzyl-isopropyl-amino)-piperidin-1-yl]-acetic acid

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

[3-(Benzyl-cyclopropyl-amino)-piperidin-1-yl]-acetic acid

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