(S)-2-Carboxymethylsulfanylmethyl-pyrrolidine-1-carboxylic acid benzyl ester

3-(2-Hydroxy-ethylsulfanylmethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

3-(2-Hydroxy-ethylsulfanyl)-piperidine-1-carboxylic acid tert-butyl ester

(R)-3-(2-Hydroxy-ethylsulfanyl)-piperidine-1-carboxylic acid benzyl ester

(S)-3-(2-Amino-ethylsulfanyl)-piperidine-1-carboxylic acid tert-butyl ester

(R)-3-(2-Amino-ethylsulfanyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

3-(2-Amino-ethylsulfanyl)-pyrrolidine-1-carboxylic acid benzyl ester

4-(2-Amino-ethylsulfanyl)-piperidine-1-carboxylic acid benzyl ester

3-(Carboxymethyl-amino)-pyrrolidine-1-carboxylic acid tert-butyl ester

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

4-[(Carboxymethyl-methyl-amino)-methyl]-piperidine-1-carboxylic acid tert-butyl ester

(R)-3-(Carboxymethyl-ethyl-amino)-piperidine-1-carboxylic acid tert-butyl ester

(1R,4R)-[(4-tert-Butoxycarbonylamino-cyclohexyl)-ethyl-amino]-acetic acid

3-[(Carboxymethyl-isopropyl-amino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

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