(R)-3-Carboxymethoxy-piperidine-1-carboxylic acid tert-butyl ester

(S)-3-Carboxymethoxy-pyrrolidine-1-carboxylic acid benzyl ester

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

((S)-1-Benzyl-piperidin-3-yloxy)-acetic acid

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

(1-Acetyl-piperidin-4-yloxy)-acetic acid

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

(4-Oxo-cyclohexylamino)-acetic acid

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

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

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

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

[3-(Toluene-4-sulfonyloxy)-pyrrolidin-1-yl]-acetic acid

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

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