| 7-alpha-(1-hydroxy-1-methylbutyl)-14-endo-ethenotetrahydrooripavine |
| (-)-etorphine |
| 19-propylorvinol |
| 7,8-dihydro-7-alpha-(1-(R)-hydroxy-1-methylbutyl)-o(sup 6)-methyl-6,14-endo-e |
| thenomorphine |
| 7-alpha-(1-(R)-hydroxy-1-methylbutyl)-6,14-endo-ethenotetrahydrooripavine |
| 7-alpha-etorphine |
| etorphine |
| 6,14-endo-ethylenetetrahydro-7-(1-hydroxy-1-methylbutyl)-oripavin |
| tetrahydro-7-alpha-(1-hydroxy-1-methylbutyl)-6,14-endo-ethenooripavine |
| tetrahydro-7-alpha-(2-hydroxy-2-pentyl)-6,14-endo-ethenooripavine |
