Download MendeleyN-alkylpiperidine carbamates as potential anti-Alzheimer's agents.
Kosak, U., Strasek, N., Knez, D., Jukic, M., Zakelj, S., Zahirovic, A., Pislar, A., Brazzolotto, X., Nachon, F., Kos, J., Gobec, S.(2020) Eur J Med Chem 197: 112282-112282
- PubMed: 32380361
- DOI: https://doi.org/10.1016/j.ejmech.2020.112282
- Primary Citation of Related Structures:
6SAM - PubMed Abstract:
Compounds capable of interacting with single or multiple targets involved in Alzheimer's disease (AD) pathogenesis are potential anti-Alzheimer's agents. In our aim to develop new anti-Alzheimer's agents, a series of 36 new N-alkylpiperidine carbamates was designed, synthesized and evaluated for the inhibition of cholinesterases [acetylcholinesterase (AChE) and butyrylcholinesterase (BChE)] and monoamine oxidases [monoamine oxidase A (MAO-A and monoamine oxidase B (MAO-B)]. Four compounds are very promising: multiple AChE (IC 50 = 7.31 μM), BChE (IC 50 = 0.56 μM) and MAO-B (IC 50 = 26.1 μM) inhibitor 10, dual AChE (IC 50 = 2.25 μM) and BChE (IC 50 = 0.81 μM) inhibitor 22, selective BChE (IC 50 = 0.06 μM) inhibitor 13, and selective MAO-B (IC 50 = 0.18 μM) inhibitor 16. Results of enzyme kinetics experiments showed that despite the carbamate group in the structure, compounds 10, 13, and 22 are reversible and non-time-dependent inhibitors of AChE and/or BChE. The resolved crystal structure of the complex of BChE with compound 13 confirmed the non-covalent mechanism of inhibition. Additionally, N-propargylpiperidine 16 is an irreversible and time-dependent inhibitor of MAO-B, while N-benzylpiperidine 10 is reversible. Additionally, compounds 10, 13, 16, and 22 should be able to cross the blood-brain barrier and are not cytotoxic to human neuronal-like SH-SY5Y and liver HepG2 cells. Finally, compounds 10 and 16 also prevent amyloid β 1-42 (Aβ 1-42 )-induced neuronal cell death. The neuroprotective effects of compound 16 could be the result of its Aβ 1-42 anti-aggregation effects.
Organizational Affiliation:
University of Ljubljana, Faculty of Pharmacy, Aškerčeva 7, 1000, Ljubljana, Slovenia.
