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

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

((S)-3-Benzyloxycarbonylamino-piperidin-1-yl)-acetic acid

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

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

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

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

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

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

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

2-{4-[(Benzyl-methyl-amino)-methyl]-piperidin-1-yl}-ethanol