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Recent Advances in Pyrazole-Based Cholinesterase Inhibitors: Medicinal Chemistry Perspectives from 2020 to 2025
Lalsu Yeysin1, Deniz Akın2, Süleyman Çalışkan3
1Institute of Science, Gazi University, Ankara 06500, Türkiye.
Pyrazole derivatives show promise as cholinesterase inhibitors for Alzheimer's disease therapy. This review analyzes structure-activity relationships of these compounds, focusing on improving potency and drug-like properties.
Area of Science:
- Medicinal Chemistry
- Pharmacology
- Drug Discovery
Background:
- Pyrazole derivatives are versatile scaffolds for developing cholinesterase inhibitors.
- Their structural flexibility allows selective interaction with cholinesterase enzyme sites (CAS and PAS).
- These compounds are promising candidates for treating cognitive disorders, particularly Alzheimer's disease.
Purpose of the Study:
- To systematically review medicinal chemistry studies on pyrazole-based cholinesterase inhibitors (2020-2025).
- To analyze structure-activity relationships (SAR) of pyrazole core modifications.
- To evaluate trends in potency, selectivity, and drug-like characteristics.
Main Methods:
- Literature search across Scopus, PubMed, and Google Scholar.
- Analysis of in vitro enzymatic inhibition, molecular docking, and kinetic studies.
- Evaluation of ADME predictions and multi-target-directed ligand (MTDL) approaches.
Main Results:
- Detailed SAR analysis of structural alterations on the pyrazole core.
- Assessment of inhibitory activity against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE).
- Identification of trends influencing compound potency, selectivity, and pharmacokinetic properties.
Conclusions:
- Pyrazole derivatives offer a viable strategy for developing novel Alzheimer's disease therapeutics.
- Addressing challenges in pharmacokinetics, blood-brain barrier penetration, and safety is crucial.
- Integrating rational design, computational modeling, and biological validation will accelerate clinical development.
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