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

(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

2-Amino-1-[3-(benzyl-cyclopropyl-amino)-piperidin-1-yl]-ethanone

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

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