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

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

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

[1-(2-Amino-ethyl)-piperidin-4-ylmethyl]-cyclopropyl-carbamic acid benzyl ester

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

(S)-2-Amino-N-[2-(benzyl-isopropyl-amino)-cyclohexyl]-3-methyl-butyramide

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

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

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

(S)-3-((S)-2-Amino-propionylamino)-pyrrolidine-1-carboxylic acid tert-butyl ester

[2-((S)-2-Amino-propionylamino)-cyclohexyl]-carbamic acid tert-butyl ester