The Determination of the Relative Configuration of Morphine, Levorphanol and Laevo-Phenazocine by Stereoselective Adsorbents

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Abstract
The preparation of levorphanol, dextrorphan and morphine stereoselective adsorbents is described. These adsorbents are used to show that the laevo isomers of morphine, phenazocine and a related compound, and racemorphan and related morphinans have similar configurations; the analgesic activity of the various compounds resides substantially in these laevo isomers.