(4-Benzyloxycarbonylamino-cyclohexyloxy)-acetic acid

(2-Chloromethyl-pyrrolidin-1-yl)-acetic acid

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

3-Bromo-pyrrolidin-1-yl)-acetic acid

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

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

[4-(Toluene-4-sulfonyloxy)-cyclohexylamino]-acetic acid

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

(4-Methoxy-cyclohexylamino)-acetic acid

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

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