RT Journal Article T1 Enantioselective Synthesis and Pharmacological Evaluation of Aza-CGP37157–Lipoic Acid Hybrids for the Treatment of Alzheimer’s Disease A1 Cores Esperón, Ángel A1 Michalska Dziama, Patrycja A1 Pérez Moreno, José Miguel A1 Crisman Vigil, Enrique A1 Gómez Serrano, Clara A1 Villacampa Sanz, Mercedes A1 Menéndez Ramos, José Carlos A1 León Martínez, Rafael AB Hybrids based on an aza-analogue of CGP37157, a mitochondrial Na+/Ca2+ exchanger antagonist, and lipoic acid were obtained in order to combine in a single molecule the antioxidant and NRF2 induction properties of lipoic acid and the neuroprotective activity of CGP37157. The four possible enantiomers of the hybrid structure were synthesized by using as the key step a fully diastereoselective reduction induced by Ellman’s chiral auxiliary. After computational druggability studies that predicted good ADME profiles and blood–brain permeation for all compounds, the DPPH assay showed moderate oxidant scavenger capacity. Following a cytotoxicity evaluation that proved the compounds to be non-neurotoxic at the concentrations tested, they were assayed for NRF2 induction capacity and for anti-inflammatory properties and measured by their ability to inhibit nitrite production in the lipopolysaccharide-stimulated BV2 microglial cell model. Moreover, the compounds were studied for their neuroprotective effect in a model of oxidative stress achieved by treatment of SH-SY5Y neuroblastoma cells with the rotenone–oligomycin combination and also in a model of hyperphosphorylation induced by treatment with okadaic acid. The stereocenter configuration showed a critical influence in NRF2 induction properties, and also in the neuroprotection against oxidative stress experiment, leading to the identification of the compound with S and R configuration as an interesting hit with a good neuroprotective profile against oxidative stress and hyperphosphorylation, together with a relevant anti-neuroinflammatory activity. This interesting multitarget profile will be further characterized in future work. PB MPDI SN 2076-3921 YR 2022 FD 2022-01-04 LK https://hdl.handle.net/20.500.14352/72079 UL https://hdl.handle.net/20.500.14352/72079 LA eng NO Cores, Ángel, et al. «Enantioselective Synthesis and Pharmacological Evaluation of Aza-CGP37157–Lipoic Acid Hybrids for the Treatment of Alzheimer’s Disease». Antioxidants, vol. 11, n.o 1, enero de 2022, p. 112. DOI.org (Crossref), https://doi.org/10.3390/antiox11010112. NO Ministerio de Ciencia, Innovación y Universidades (España) NO Instituto de Salud Carlos III NO Comunidad de Madrid NO Federación Española de Enfermedades Raras DS Docta Complutense RD 10 abr 2025