Photochemical Cleavage of Supercoiled DNA by N-Acyloxypyridine-2-thione Acridinyl Derivatives
Abstract
New acyl thiohydroxamates bearing an acridine moiety able to intercalate DNA double strand exhibit the capacity to cleave supercoiled DNA to linear DNA. EPR spin-trapping analysis has been employed to detect the formation of the carbon-centered radicals.