(1R,4R)-{4-[(2-Amino-acetyl)-methyl-amino]-cyclohexyl}-carbamic acid tert-butyl ester

(R)-3-[(2-Amino-ethyl)-methyl-amino]-pyrrolidine-1-carboxylic acid benzyl ester

(S)-3-[(2-Amino-ethyl)-methyl-amino]-pyrrolidine-1-carboxylic acid benzyl ester

(S)-2-Amino-N-(1-benzyl-piperidin-2-ylmethyl)-3,N-dimethyl-butyramide

(S)-2-Amino-N-((S)-1-benzyl-pyrrolidin-2-ylmethyl)-N-ethyl-3-methyl-butyramide

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

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

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

[(R)-1-(2-Amino-ethyl)-piperidin-3-yl]-cyclopropyl-carbamic acid benzyl ester

[1-(2-Chloro-acetyl)-pyrrolidin-2-ylmethyl]-carbamic acid benzyl ester

(1R,4R)-2-Amino-N-[4-(benzyl-isopropyl-amino)-cyclohexyl]-acetamide