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

[(R)-1-((S)-2-Amino-3-methyl-butyryl)-piperidin-3-yl]-cyclopropyl-carbamic acid tert-butyl ester

(1R,4R)-[4-((S)-2-Amino-3-methyl-butyrylamino)-cyclohexyl]-cyclopropyl-carbamic acid tert-butyl ester

[3-(tert-Butoxycarbonylamino-methyl)-piperidin-1-yl]-acetic acid

2-(3-((叔丁氧基羰基)(甲基)氨基)哌啶-1-基)乙酸, [3-(tert-Butoxycarbonyl-methyl-amino)-piperidin-1-yl]-acetic acid

[2-(tert-Butoxycarbonyl-methyl-amino)-cyclohexylamino]-acetic acid

[2-(tert-Butoxycarbonyl-ethyl-amino)-cyclohexylamino]-acetic acid

[2-(tert-Butoxycarbonyl-isopropyl-amino)-cyclohexylamino]-acetic acid

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

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

[1-(2-Hydroxy-ethyl)-piperidin-2-ylmethyl]-carbamic acid benzyl ester