A series of imidazo [1, 2-c] quinazolines of different lipophilic character was prepared. According to their antioxidant (cyclic voltammetry) properties they all should be potent inhibitors of lipid peroxidation. Under the given circumstances (NADPH-induced lipid peroxidation in rat brain microsomes and Fe2+-induced lipid peroxidation in rat brain homogenate), however, their lipid peroxidation inhibitory activity was strongly dependent ...