RT Journal Article T1 Remarkable antioxidant properties of a series of hydroxy-3-arylcoumarins A1 Matos, Maria João Correia Pinto Carvalho de A1 Pérez Cruz, Fernanda A1 Vázquez Rodríguez, Saleta A1 Uriarte Villares, Eugenio A1 Santana Penín, María Lourdes A1 Borges, Fernanda A1 Olea Azar, Claudio K1 3-Arylcoumarins K1 Hydroxyl derivatives K1 ORAC-FL assays K1 ESR assays K1 CV assays K1 Antioxidant capacity AB In the present work we synthesized a series of hydroxy-3-arylcoumarins (compounds 1–9), some of them previously described as MAO-B selective inhibitors, with the aim of evaluating their antioxidant properties. Theoretical evaluation of ADME properties of all the derivatives was also carried out. From the ORAC-FL, ESR and CV data it was concluded that these derivatives are very good antioxidants, with a very interesting hydroxyl, DPPH and superoxide radicals scavenging profiles. In particular compound 9 is the most active and effective antioxidant of the series (ORAC-FL = 13.5, capacity of scavenging hydroxyl radicals = 100%, capacity of scavenging DPPH radicals = 65.9% and capacity of scavenging superoxide radicals = 71.5%). Kinetics profile for protection fluorescein probe against peroxyl radicals by addition of antioxidant molecule 9 was also performed. Therefore, it can operate as a potential candidate for preventing or minimizing the free radicals overproduction in oxidative-stress related diseases PB Elsevier SN 0968-0896 YR 2013 FD 2013 LK http://hdl.handle.net/10347/24337 UL http://hdl.handle.net/10347/24337 LA eng NO Bioorganic & Medicinal Chemistry, Volume 21, Issue 13, 1 July 2013, Pages 3900-3906 NO The current work was supported by Mecesup (Project UCH-0601), CONICYT-Chile (Project N 24110059), Fundação para a Ciência e Tecnologia (Project PTDC/QUI-QUI/113687/2009) and personal funds from the researchers. M.J. Matos thanks Fundação para a Ciência e Tecnologia (SFRH/BD/61262/2009) Ph.D. Grant, F. Pérez-Cruz thanks CONICYT-Chile PhD. grant, Becas-Chile and Fulbright doctoral stay fellowships and S. Vazquez-Rodriguez thanks Ministerio de Educación y Ciencia (AP2008-04263) PhD. Grant DS Minerva RD 4 may 2026