N ‐Substituted piperidine‐3‐carbohydrazide‐hydrazones against Alzheimer's disease: Synthesis and evaluation of cholinesterase, beta‐amyloid inhibitory activity, and antioxidant capacity

Autor: Sulunay Parlar, Gozde Sayar, Ayse H. Tarikogullari, Sumru Sozer Karadagli, Elif Alan, Gulnur Sevin, Ercin Erciyas, Ulrike Holzgrabe, Vildan Alptuzun
Rok vydání: 2022
Předmět:
Zdroj: Archiv der Pharmazie. 356:2200519
ISSN: 1521-4184
0365-6233
DOI: 10.1002/ardp.202200519
Popis: A series of piperidine-3-carbohydrazide-hydrazones bearing phenylethyl, phenylpropyl, and phenylbutyl substituents on piperidine nitrogen were designed and synthesized as cholinesterase (ChE) inhibitors. The title compounds were screened for acetylcholinesterase (AChE), butyrylcholinesterase (BuChE) inhibitory activities and antioxidant capacities, and the active ones for A?42 self-aggregation inhibition, in vitro. The chemiluminescence method was used to determine the effect of the selected compounds on the reactive oxygen species (ROS) levels in brain tissue. Physicochemical properties were calculated by the MOE program. Kinetic analysis and molecular modeling studies were also carried out for the most active compounds. Generally, the final compounds exhibited moderate to good AChE or BuChE inhibitory activity. Among them, 3g and 3j showed the most potent activity against AChE (IC50 = 4.32 µM) and BuChE (IC50 = 1.27 µM), respectively. The kinetic results showed that both compounds exhibited mixed-type inhibition. Among the selected compounds, nitro derivatives (3g, 4g, and 5g) provided better A?42 inhibition. According to the chemiluminescence assay, 4i exhibited the most active superoxide free-radical scavenger activity and 3g, 3j, and 4i showed similar scavenger activity on other ROS. All results suggested that 3g, 3j, and 4i have good AChE/BuChE, A?42 inhibitory potentials and antioxidant capacities and can therefore be suggested as promising multifunctional agents to combat Alzheimer's disease. © 2022 Deutsche Pharmazeutische Gesellschaft.
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, TÜBİTAK: 214S083
This project was supported by TUBITAK (The Scientific and Technological Research Council of Turkey), Project Number: 214S083. The authors would like to thank the Pharmaceutical Sciences Research Centre (FABAL) at Ege University Faculty of Pharmacy for spectral and elemental analyses of the compounds.
Databáze: OpenAIRE
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