1-((S)-2-Amino-3-methyl-butyryl)-piperidin-3-one

2-Amino-1-(2-methoxymethyl-piperidin-1-yl)-ethanone

2-Amino-1-((R)-3-methoxy-piperidin-1-yl)-ethanone

(S)-2-Amino-1-(4-methoxymethyl-piperidin-1-yl)-propan-1-one

(S)-2-Amino-1-(2-methoxymethyl-piperidin-1-yl)-3-methyl-butan-1-one

(S)-2-Amino-1-(3-methoxymethyl-piperidin-1-yl)-3-methyl-butan-1-one

4-Carboxymethylsulfanylmethyl-piperidine-1-carboxylic acid tert-butyl ester

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

(S)-3-Carboxymethylsulfanyl-piperidine-1-carboxylic acid benzyl ester

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

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