The preparation of some specifically tritium labelled carcinogenic hydrocarbons and their covalent binding to DNA
作者:G. Michael Blackburn、Andrew J. Flavell、Lawrence Orgee、James P. Will、Gillian M. Williams
DOI:10.1039/p19810003196
日期:——
Syntheses are described for the preparation of [9(10)-3H]anthracene, [6-3H]benzo[a]pyrene, and [7-Me-3H1]-7,12-dimethylbenz[a]anthracen. The nature and extent of covalent binding of these hydrocarbons to calf thymus DNA resulting from ultraviolet or gamma irradiation, from oxidative processes involving iodine or hydrogen peroxide, or from oxygen in conjunction with NADPH and a rat liver microsomal
描述了用于制备[9(10)-3 H]蒽,[6- 3 H]苯并[ a ] py和[7- Me - 3 H 1 ] -7,12-二甲基苯并[ a ]蒽的合成方法。研究了这些碳氢化合物与小牛胸腺DNA共价结合的性质和程度,这些小牛胸腺DNA是由紫外线或伽马射线辐照,涉及碘或过氧化氢的氧化过程,或与NADPH结合的氧气和大鼠肝微粒体制剂产生的。hydrocarbon在烃与DNA的键合上的置换可确定苯并[ a]中的6位py和蒽中的9位是通过辐射过程或化学氧化作用与DNA结合的位点。苯并[ a ] py与DNA的代谢结合显示出区域选择性的改变,而7,12-二甲基苯并[ a ]蒽的结合选择性似乎涉及7-甲基。