In an embodiment, a novel DNA-interactive compound is formed by coupling an alkali metal ion binding moiety with a DNA interactive moiety. An alkali metal ion binding moiety is any group capable of binding alkali metal ions (e.g., lithium, sodium, potassium, etc.). The DNA-interactive moiety is a group of atoms or functionality capable of covalently modifying DNA, through, for example, alkylation, cleavage, metalation, hydrolysis, or crosslinking.
                            在一种实施例中,一种新型DNA交互化合物通过将碱
金属离子结合基团与DNA交互基团偶联而形成。碱
金属离子结合基团是指任何能够结合碱
金属离子(如
锂、
钠、
钾等)的基团。DNA交互基团是指一组原子或功能基团,能够通过共价修饰DNA,例如烷基化、裂解、
金属化、
水解或交联等方式。