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

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

[1-(2-Chloro-acetyl)-piperidin-2-ylmethyl]-ethyl-carbamic acid tert-butyl ester

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

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

2-Amino-1-{2-[(benzyl-cyclopropyl-amino)-methyl]-pyrrolidin-1-yl}-ethanone

(S)-2-Amino-1-{4-[(benzyl-isopropyl-amino)-methyl]-piperidin-1-yl}-3-methyl-butan-1-one

(S)-2-Amino-1-{(S)-2-[(benzyl-cyclopropyl-amino)-methyl]-pyrrolidin-1-yl}-3-methyl-butan-1-one

3-[(2-Amino-acetyl)-isopropyl-amino]-piperidine-1-carboxylic acid tert-butyl ester

2-{[(2-Amino-acetyl)-cyclopropyl-amino]-methyl}-pyrrolidine-1-carboxylic acid tert-butyl ester

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