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New (benz)imidazolopyridino tacrines as nonhepatotoxic, cholinesterase inhibitors for Alzheimer disease

Abstract : Aim: Due to the multifactorial nature of Alzheimer’s disease, there is an urgent search for new more efficient, multitarget-directed drugs. Results: This paper describes the synthesis, antioxidant and in vitro biological evaluation of ten (benz)imidazopyridino tacrines (7–16), showing less toxicity than tacrine at high doses, and potent cholinesterase inhibitory capacity, in the low micromolar range. Among them, compound 10 is a nonhepatotoxic tacrine at 1000 mM, showing moderate, but totally selective electric eel acetylcholinesterase inhibition, whereas molecule 16 is twofold less toxic than tacrine at 1000 μM, showing moderate and almost equipotent inhibition for electric eel acetylcholinesterase and equine butyrylcholinesterase. Conclusion: (Benz)imidazopyridino tacrines (7–16) have been identified as a new and promising type of tacrines for the potential treatment of Alzheimer’s disease.
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https://hal-univ-fcomte.archives-ouvertes.fr/hal-03654691
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Submitted on : Thursday, April 28, 2022 - 5:38:56 PM
Last modification on : Friday, April 29, 2022 - 3:08:35 AM

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Houssem Boulebd, Lhassane Ismaili, Helene Martin, Alexandre Bonet, Mourad Chioua, et al.. New (benz)imidazolopyridino tacrines as nonhepatotoxic, cholinesterase inhibitors for Alzheimer disease. Future Medicinal Chemistry, Future Science, 2017, 9 (8), pp.723-729. ⟨10.4155/fmc-2017-0019⟩. ⟨hal-03654691⟩

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