RT Journal Article T1 8-Amide and 8-carbamate substitution patterns as modulators of 7-hydroxy-4-methylcoumarin's antidepressant profile: Synthesis, biological evaluation and docking studies A1 Matos, Maria João Correia Pinto Carvalho de A1 Novo, Paula A1 Mayán Santos, Lucía A1 Torres, Iria A1 Uriarte Villares, Eugenio A1 Yáñez Jato, Matilde A1 Ortuso, Francesco A1 Alcaro, Stefano A1 Procopio, Francesca A1 Rodríguez Franco, María Isabel A1 Val García, Cristina A1 Loza García, María Isabel A1 Brea Floriani, José Manuel A1 Borges, Fernanda A1 Viña Castelao, María Dolores A1 Fontenla Gil, José Ángel K1 Amidocoumarins K1 Carbamatecoumarins K1 Monoamine oxidase A K1 Depression K1 Docking AB Psychiatric and neurological disorders affect millions of people worldwide. Currently available treatments may help to improve symptoms, but they cannot cure the diseases. Therefore, there is an urgent need for potent and safe therapeutic solutions. 8-Amide and 8-carbamatecoumarins were synthetized and evaluated as human monoamine oxidase A and B (hMAO-A and hMAO-B) inhibitors. Comparison between both scaffolds has been established, and we hypothesized that the introduction of different substituents can modulate hMAO activity and selectivity. N-(7-Hydroxy-4-methylcoumarin-8-yl)-4-methylbenzamide (9) and ethyl N-(7-hydroxy-4-methylcoumarin-8-yl)carbamate (20) proved to be the most active and selective hMAO-A inhibitors (IC50 = 15.0 nM and IC50 = 22.0 nM, respectively), being compound 9 an irreversible hMAO-A inhibitor twenty-four times more active in vitro than moclobemide, a drug used in the treatment of depression and anxiety. Based on PAMPA assay results, both compounds proved to be good candidates to cross the blood-brain barrier. In addition, these compounds showed non-significant cytotoxicity on neuronal viability assays. Also, the best compound proved to have a t1/2 of 6.84 min, an intrinsic clearance of 195.63 μL min−1 mg−1 protein, and to be chemically stable at pH 3.0, 7.4 and 10.0. Docking studies were performed to better understand the binding affinities and selectivity profiles for both hMAO isoforms. Finally, theoretical drug-like properties calculations corroborate the potential of both scaffolds on the search for new therapeutic solutions for psychiatric disorders as depression PB Elsevier SN 0223-5234 YR 2023 FD 2023 LK http://hdl.handle.net/10347/30291 UL http://hdl.handle.net/10347/30291 LA eng NO European Journal of Medicinal Chemistry, 248 (2023) 115091. https://doi.org/10.1016/j.ejmech.2023.115091 NO This research was funded by Consellería de Cultura, Educación e Ordenación Universitaria (EM2014/016), Ministerio de Ciencia e Innovación (PID2020-116076RJ-I00/AEI/10.13039/501100011033) and Fundação para a Ciência e Tecnologia (PTDC/ASP-PES/28397/2017, CEECIND/02423/2018, UIDB/00081/2020, LA/P/0056/2020 and EXPL/BIA-BQM/0492/2021). Financial support from the Xunta de Galicia (Centro de investigación de Galicia accreditation 2019–2022) and the European Union (European Regional Development Fund - ERDF), is also gratefully acknowledged. M.I.R.-F. acknowledges the economic support from the Spanish Ministry of Science, Innovation and Universities; Spanish Research Agency; and European Regional Development Funds (grant PID2021-122650OB-I00) and from CSIC (PIE-202080E118) DS Minerva RD 24 abr 2026