| 1-hydroxy-alpha-phenyl-cyclohexaneacetic aci (1-methyl-4-piperidyl)methyl e |
| (1-methyl-4-piperidyl)methyl(1-hydroxycyclohexyl)phenylacetate |
| 1-hydroxy-alpha-phenylcyclohexaneacetic acid (1-methyl-4-piperidyl)methyl est |
| 1-hydroxy-alpha-phenyl-cyclohexaneacetic aci(1-methyl-4-piperidyl)methyl ester |
