[1-((S)-2-Amino-3-methyl-butyryl)-pyrrolidin-2-ylmethyl]-ethyl-carbamic acid benzyl ester

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

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

[(S)-3-(Benzyloxycarbonyl-isopropyl-amino)-pyrrolidin-1-yl]-acetic acid

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

[4-(Benzyloxycarbonyl-isopropyl-amino)-cyclohexylamino]-acetic acid

[(S)-3-(Benzyloxycarbonyl-cyclopropyl-amino)-pyrrolidin-1-yl]-acetic acid

(1R,4R)-[4-(Benzyloxycarbonyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid

[2-(Benzyloxycarbonyl-cyclopropyl-amino)-cyclohexylamino]-acetic acid

2-[(S)-3-(Benzyl-methyl-amino)-piperidin-1-yl]-ethanol

2-[(S)-3-(Benzyl-ethyl-amino)-pyrrolidin-1-yl]-ethanol