3-[(2-Amino-acetylamino)-methyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

3-Carboxymethoxymethyl-piperidine-1-carboxylic acid benzyl ester

(1-Acetyl-pyrrolidin-3-yloxy)-acetic acid

(1-Methyl-pyrrolidin-3-yloxy)-acetic acid

(3-Chloro-pyrrolidin-1-yl)-acetic acid

(4-Chloro-cyclohexylamino)-acetic acid

(2-Bromomethyl-piperidin-1-yl)-acetic acid

(4-Iodo-piperidin-1-yl)-acetic acid

(4-Methoxy-piperidin-1-yl)-acetic acid

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

2-(2-Hydroxy-ethoxymethyl)-piperidine-1-carboxylic acid benzyl ester