[(4-tert-Butoxycarbonylamino-cyclohexyl)-isopropyl-amino]-acetic acid

3-[(2-Chloro-acetyl)-methyl-amino]-pyrrolidine-1-carboxylic acid tert-butyl ester

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

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

3-[(2-Chloro-acetyl)-isopropyl-amino]-piperidine-1-carboxylic acid tert-butyl ester

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

4-{[(2-Chloro-acetyl)-cyclopropyl-amino]-methyl}-piperidine-1-carboxylic acid tert-butyl este

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

3-[(2-Chloro-acetylamino)-methyl]-pyrrolidine-1-carboxylic acid benzyl ester

2-{[(2-Chloro-acetyl)-methyl-amino]-methyl}-pyrrolidine-1-carboxylic acid benzyl ester

3-[(2-Chloro-acetyl)-ethyl-amino]-pyrrolidine-1-carboxylic acid benzyl ester