In this step, the adduct from stepl is fluorinated. 在这一步，将步骤1的加合产物进行氟化。
Deoxyribonacleic acid (DNA) adduct is always one of the frontier and spotlight fields in the studies of environmental science, medicine and ecological toxicology in the recent decade. 脱氧核糖核酸(DNA)加合物近十多年来一直是环境科学、医学和生态毒理学的前沿和热点研究领域之一。
