Publications by authors named "F Tok"

The increasing global prevalence of Alzheimer's disease necessitates the development of novel therapeutic approaches. Neurodegenerative diseases are associated with increased oxidative stress and levels of cholinesterase enzymes. Hence, the development of cholinesterase inhibitors and antioxidants may provide neuroprotective effects.

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Designing new compounds from existing chemotherapeutic drugs to enhance inhibitory effects on tumor cells while overcoming multidrug resistance is one of the important strategies for new drug discovery in medicinal chemistry. A new series of urea and thiourea derivatives based on Lenalidomide as potential anticancer agents have been designed and synthesized. In vitro anticancer activity assay against Caki cancer cells and HUVEC endothelial cells revealed that 1-(4-methylphenyl)-3-[2-(2,6-dioxopiperidin-3-yl)-1-oxoisoindolin-4-yl]urea (11) exhibited the highest anticancer activity and selectivity in the series with IC values of 9.

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Article Synopsis
  • Alzheimer's disease is a progressive neurodegenerative disorder affecting emotions, language, memory, and cognitive judgment, linked to factors such as amyloid beta plaques and tau tangles.
  • Disruption of the cholinergic system plays a key role in the disease, making cholinesterase inhibitors crucial for treatment as they help maintain acetylcholine levels in the brain.
  • This review highlights recent advancements in cholinesterase inhibitors with heterocyclic rings, focusing on their chemical structures and potential for future drug development in Alzheimer's treatment.
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In an effort to develop new and effective therapeutic agents for Alzheimer's disease, a series of hydrazone derivatives bearing piperidine rings have been designed and synthesized. The chemical structures of the compounds were characterized by various spectroscopic techniques. In vitro antioxidant and cholinesterase activities of the compounds were evaluated.

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In this present study, new chalcone derivatives were synthesized from 4-aminoacetophenone, which were confirmed by spectroscopic methods. The toxic risks of chalcones to humans and the environment were investigated by a web-based platform called ADMETlab. With this program, the possible toxic effects of the compounds on liver, respiratory system, and eyes were evaluated.

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