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

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

(S)-2-Amino-N-(1-benzyl-piperidin-4-ylmethyl)-3,N-dimethyl-butyramide

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

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

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

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

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

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

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

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