cells to facilitate DNA single‐strand breaks and intra‐ or interstrand crosslinks upon UV irradiation. In this work, it is shown that the naphthyl‐based organoselenium compounds can mediate the dehalogenation of halogenated pyrimidine‐based nucleosides, such as 5‐X‐2′‐deoxyuridine and 5‐X‐2′‐deoxycytidine (X=Br or I). The rate of deiodination was found to be significantly higher than that of the debromination
卤代核苷(例如5-
碘-
2'-脱氧尿苷和
5-碘-2'-脱氧胞苷)被掺入复制细胞的DNA中,以促进DNA单链断裂以及紫外线照射后的链内或链间交联。在这项工作中,表明基于
萘基的有机
硒化合物可以介导卤代
嘧啶基核苷的脱卤化作用,例如5‐X‐2′‐脱氧
尿苷和5‐X‐2‐‐脱氧
胞苷(X = Br或I )。发现两种核苷的去
碘化率均显着高于去
溴化率。此外,发现
碘胞苷的脱
碘作用比
碘尿苷的去
碘作用要快。5-
碘胞嘧啶和5-
碘尿
嘧啶脱
碘的起始速率表明糖部分的性质会影响脱
碘的动力学。