The adamantane moiety is the structural backbone of numerous compounds and its discovery launched a new field of chemistry studying the approaches to the synthesis as well as the physicochemical and biological properties of organic polyhedral compounds with practical application in the pharmaceutical industry. Adamantane derivatives have proven to be very potent compounds in a wide range of applications from systemic to topical therapy. This review summarizes the currently available adamantane derivatives in clinical practice (amantadine, memantine, rimantadine, tromantadine, adapalene, saxagliptin, vildagliptin), focusing on mechanisms of action, pharmacokinetics, pharmacodynamics and clinical trials. The adamantane-based compounds presented in this manuscript have been approved for a wide spectrum of indications (antivirals, antidiabetics and against Alzheimer's and Parkinson's disease). Each of the compounds proved to be of vital importance in their therapeutic indication for numerous patients worldwide. This review also considers the mechanisms of side effects to deliver a complete perspective on current treatment options.

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Acetylcholinesterase (AChE) reactivators were developed for the treatment of organophosphate intoxication. Standard care involves the use of anticonvulsants (e.g., diazepam), parasympatolytics (e.g., atropine) and oximes that restore AChE activity. However, oximes also bind to the active site of AChE, simultaneously acting as reversible inhibitors. The goal of the present study is to determine how oxime structure influences the inhibition of human recombinant AChE (hrAChE). Therefore, 24 structurally different oximes were tested and the results compared to the previous eel AChE (EeAChE) experiments. Structural factors that were tested included the number of pyridinium rings, the length and structural features of the linker, and the number and position of the oxime group on the pyridinium ring.

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