4-[(2-Amino-acetylamino)-methyl]-piperidine-1-carboxylic acid tert-butyl ester

(S)-2-Amino-N-(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-Amino-ethyl)-piperidin-3-yl]-cyclopropyl-carbamic acid benzyl ester

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

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

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

2-Amino-1-[4-(benzyl-cyclopropyl-amino)-piperidin-1-yl]-ethanone

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

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

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