Cannabis is a plant with an astonishing
ability to biosynthesize
cannabinoids, and more than 100 molecules belonging to this class
have been isolated. Among them in recent years cannabidiol (CBD) has
received the interest of pharmacology as the major nonpsychotropic
cannabinoid with many potential clinical applications. Although the
reactivity of CBD has been widely investigated, only little attention
has been given to the possible photodegradation of this cannabinoid,
and the data available in the literature are outdated and, in some
cases, conflicting. The aim of the present work is providing a characterization
of the photochemical behavior of CBD in organic solvents, through
a detailed GC-MS analyses, isolation, and NMR characterization of
the photoproducts obtained.
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