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- W3016970797 abstract "Spurred by a growing interest in cannabidiolquinone (CBDQ, HU-313, 2) as a degradation marker and alledged hepatotoxic metabolite of cannabidiol (CBD, 1), we performed a systematic study on the oxidation of CBD (1) to CBDQ (2) under a variety of experimental conditions (base-catalyzed aerobic oxidation, oxidation with metals, oxidation with hypervalent iodine reagents). The best results in terms of reproducibility and scalability were obtained with λ5-periodinanes (Dess-Martin periodinane, 1-hydroxy-1λ5,2-benziodoxole-1,3-dione (IBX), and SIBX, a stabilized, nonexplosive version of IBX). With these reagents, the oxidative dimerization that plagues the reaction under basic aerobic conditions was completely suppressed. A different reaction course was observed with the copper(II) chloride-hydroxylamine complex (Takehira reagent), which afforded a mixture of the hydroxyiminodienone 11 and the halogenated resorcinol 12. The λ5-periodinane oxidation was general for phytocannabinoids, turning cannabigerol (CBG, 18), cannabichromene (CBC, 10), and cannabinol (CBN, 19) into their corresponding hydroxyquinones (20, 21, and 22, respectively). All cannabinoquinoids modulated to a various extent peroxisome proliferator-activated receptor gamma (PPAR-γ) activity, outperforming their parent resorcinols in terms of potency, but the iminoquinone 11, the quinone dimers 3 and 23, and the haloresorcinol 12 were inactive, suggesting a specific role for the monomeric hydroxyquinone moiety in the interaction with PPAR-γ." @default.
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- W3016970797 date "2020-04-21" @default.
- W3016970797 modified "2023-10-12" @default.
- W3016970797 title "The Oxidation of Phytocannabinoids to Cannabinoquinoids" @default.
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- W3016970797 doi "https://doi.org/10.1021/acs.jnatprod.9b01284" @default.
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