Valhari, Mohammad U. The reactions of codeinone and hydroxycodeinone Derivatives of Diels-Alder adducts of thebaine and of 14-hydroxy codeinone provide some of the most potent analgesics in the morphine-thebaine group of alkaloids. As an extension to the range of available compounds, the preparation of further modified thebaines and 14-hydroxy codeinone was investigated. [Continues.] untagged;Chemical Sciences not elsewhere classified 2018-12-14
    https://repository.lboro.ac.uk/articles/thesis/The_reactions_of_codeinone_and_hydroxycodeinone/9400808