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

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

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

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

[1-(2-Chloro-acetyl)-pyrrolidin-2-ylmethyl]-carbamic acid benzyl ester

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

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

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

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

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

2-[((S)-2-Amino-propionylamino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

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

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