2,2-diphenyl-4-piperidino-valeronitrile
3-methyl-2,2-diphenyl-4-piperidino-butyronitrile
1-(2-bibenzyl-4-yloxy-propyl)-piperidine
bibenzyl-4-yloxy-acetic acid-(β-piperidino-isopropyl ester); hydrochloride
N-(toluene-4-sulfonyl)-L-prolyl-4-[3-(piperidin-1-yl)propoxy]-L-phenylalanine