(4-tert-Butoxycarbonylamino-cyclohexylsulfanyl)-acetic acid

4-Carboxymethylsulfanylmethyl-piperidine-1-carboxylic acid benzyl ester

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

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

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

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

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

2-(2-Amino-ethylsulfanylmethyl)-pyrrolidine-1-carboxylic acid benzyl ester

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

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

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