(1R,4R)- [4-(2-Chloro-acetylamino)-cyclohexyl]-methyl-carbamic acid tert-butyl ester

[(R)-1-(2-Amino-acetyl)-pyrrolidin-3-yl]-carbamic acid tert-butyl ester

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

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

[1-(2-Amino-acetyl)-piperidin-2-ylmethyl]-methyl-carbamic acid tert-butyl ester

[1-(2-Amino-acetyl)-pyrrolidin-3-ylmethyl]-ethyl-carbamic acid tert-butyl ester

[4-(2-Amino-acetylamino)-cyclohexyl]-ethyl-carbamic acid tert-butyl ester

[2-(2-Amino-acetylamino)-cyclohexyl]-ethyl-carbamic acid tert-butyl ester

[(S)-1-(2-Amino-acetyl)-pyrrolidin-2-ylmethyl]-isopropyl-carbamic acid tert-butyl ester

[(S)-1-(2-Amino-acetyl)-pyrrolidin-3-yl]-isopropyl-carbamic acid tert-butyl ester

[1-(2-Amino-acetyl)-pyrrolidin-3-yl]-cyclopropyl-carbamic acid tert-butyl ester