[(R)-1-((S)-2-Amino-3-methyl-butyryl)-pyrrolidin-3-yl]-isopropyl-carbamic acid benzyl ester

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

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

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

[(R)-3-(Benzyloxycarbonyl-isopropyl-amino)-piperidin-1-yl]-acetic acid

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

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

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

2-{3-[(Benzyl-methyl-amino)-methyl]-pyrrolidin-1-yl}-ethanol

2-[2-(Benzyl-methyl-amino)-cyclohexylamino]-ethanol

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