(4-Benzyloxycarbonylamino-cyclohexyloxy)-acetic acid

(1-Benzyl-pyrrolidin-3-ylmethoxy)-acetic acid

(1-Acetyl-pyrrolidin-2-ylmethoxy)-acetic acid

(1-Acetyl-piperidin-2-ylmethoxy)-acetic acid

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

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

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

[2-(Toluene-4-sulfonyloxymethyl)-pyrrolidin-1-yl]-acetic acid

[4-(Toluene-4-sulfonyloxymethyl)-piperidin-1-yl]-acetic acid

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

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