(4R,5R)-(+)-5-ethyl-1-(4-hydroxy-3-methoxyphenethyl)-2-oxo-4-piperidineacetic acid ethyl ester

4-Piperidineacetic acid,1-[2-(5,6-dimethoxy-1H-indol-3-yl)-2-oxoethyl]-5-ethyl-2-oxo-, ethylester, trans-(±)-

11-benzyloxycorynan-17-oic acid ethyl ester

(4R,54R)-1-<2-(6-benzyloxy-1H-indol-3-yl)ethyl>-5-ethyl-2-oxo-4-piperidineacetic acid ethyl ester

(+/-)-trans-1-<2-(5,6-Dimethoxy-1H-indol-3-yl)-2-hydroxyethyl>-5-ethyl-2-oxo-4-piperidineacetic Acid Ethyl Ester