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

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

(4-Acetylamino-cyclohexyloxy)-acetic acid

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

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

(1-Methyl-piperidin-3-ylmethoxy)-acetic acid

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

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

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

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