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Our novel synthetic route to (-)-oxycodone, a semisynthetic opioid analgesic, features a palladium-catalyzed direct intramolecular arylation of an aryl bromide, oxidative dearomatization of a dihydrophenanthrenol, formation of a benzylic quaternary carbon by an intramolecular Michael addition of a malonate moiety, and construction of the morphinan skeleton via a Hofmann rearrangement/lactamization cascade.
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Kimishima et al. (2014) studied this question.
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