- Synthesis, stereochemical identification, and selective inhibitory activity against human monoamine oxidase-B of 2-methylcyclohexylidene-(4-arylthiazol-2- yl)hydrazones
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A series of 2-methylcyclohexylidene-(4-arylthiazol-2-yl)hydrazones have been investigated for their ability to inhibit selectively the activity of the human A and B isoforms of monoamine oxidase (MAO). The target compounds, which present a stereogenic center on the cyclohexane ring, were obtained as pure (R) and (S) enantiomers by enantioselective HPLC. The absolute configuration of homochiral forms isolated on a semipreparative scale was obtained by a combined strategy based on chemical correlation and single-crystal X-ray diffraction. All compounds showed higher activity against the human MAO-B isoform with IC 50 values ranging between 26.81 ± 2.74 μM and 14.20 ± 0.26 nM, and the assays carried out on the pure enantiomers showed higher activity for the (R) form. A computational study was performed by molecular mechanics, DFT-based quantomechanics, and docking techniques on the most active and human MAO-B selective inhibitor 8.
- Chimenti, Franco,Maccioni, Elias,Secci, Daniela,Bolasco, Adriana,Chimenti, Paola,Granese, Arianna,Carradori, Simone,Alcaro, Stefano,Ortuso, Francesco,Yá?ez, Matilde,Orallo, Francisco,Cirilli, Roberto,Ferretti, Rosella,La Torre, Francesco
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