2-Carboxymethylsulfanylmethyl-pyrrolidine-1-carboxylic acid benzyl ester

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

[4-(2-Hydroxy-ethylsulfanyl)-cyclohexyl]-carbamic acid benzyl ester

(S)-2-(2-Amino-ethylsulfanylmethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester

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

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

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

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

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

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

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