作者:Nadia Gruber、Lidia L. Piehl、Emilio Rubin de Celis、Jimena E. Díaz、María B. García、Pierluigi Stipa、Liliana R. Orelli
DOI:10.1039/c4ra14335c
日期:——
A novel type of spintraps 1 derived from the pyrimidoquinoxaline N-oxide heterocyclic core is reported. EPR technique was used to evaluate their ability to trap methyl radicals generated in a Fenton reaction in the presence of DMSO. All the synthesized nitrones showed spintrapping properties and the corresponding nitroxides 2 were characterized by EPR. The novel spintraps showed remarkably persistent
Pyrimido[1,2-a]quinoxaline 6-oxide and phenazine 5,10-dioxide derivatives and related compounds as growth inhibitors of Trypanosoma cruzi
作者:María Laura Lavaggi、Gabriela Aguirre、Lucía Boiani、Liliana Orelli、Beatriz García、Hugo Cerecetto、Mercedes González
DOI:10.1016/j.ejmech.2007.10.031
日期:2008.8
families of N-oxide containing heterocycles were evaluated as in vitro growth inhibitors of T. cruzi. Both families of heterocycles were selected from our in-house library of compounds as analogues of active anti-T. cruzi N-oxide containing heterocycles. Derivatives from pyrimido[1,2-a]quinoxaline 6-oxide family were poorly active at the assayed doses. However, phenazine 5,10-dioxide derivatives displayed