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

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

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

(S)-2-氨基-1-{2-[(苄基-乙基-氨基)-甲基]-吡咯烷-1-基}-3-甲基-1-丁酮, (S)-2-Amino-1-{2-[(benzyl-ethyl-amino)-methyl]-pyrrolidin-1-yl}-3-methyl-butan-1-one

(1R,4R)-(S)-2-Amino-N-[4-(benzyl-ethyl-amino)-cyclohexyl]-3-methyl-butyramide

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

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

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

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

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

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

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

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

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

N-[(S)-1-(2-Hydroxy-ethyl)-pyrrolidin-2-ylmethyl]-acetamide