alphameprodine

[(3S,4R)-3-ethyl-1-methyl-4-phenylpiperidin-4-yl] propanoate

[(3S,4R)-3-ethyl-1-methyl-4-phenyl-piperidin-4-yl] propanoate

propionic acid [(3S,4R)-3-ethyl-1-methyl-4-phenyl-4-piperidyl] ester