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

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

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

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

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

4-(2-Amino-ethylsulfanylmethyl)-piperidine-1-carboxylic acid tert-butyl ester

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

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

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

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

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