作者:Tokuyuki Kuroda、Koji Hisamura、Nobuhiro Nakamizo、Yoshio Otsuji
DOI:10.1246/cl.1989.707
日期:1989.5
The reactivity of 5-fluoro-1-(2-phenylethenesulfonyl)uracil (1) and 5-fluoro-1-phenylthioureidouracil (2) in the γ-radiolysis of their aqueous solutions was studied by a competitive kinetic method using nitrobenzene and acetone as reference compounds. The rate constants for the reactions of 1 and 2 with eaq− were of the same order of magnitude as that for nitrobenzene. The efficiencies of the conversion of intermediates generated from 1 and 2 into 5-fluorouracil were also estimated.
以硝基苯和丙酮为反应物,通过竞争动力学方法研究了 5-氟-1-(2-苯基乙烯磺酰基)尿嘧啶 (1) 和 5-氟-1-苯基硫脲尿嘧啶 (2) 在其水溶液的 γ-放射解中的反应活性。参考化合物。 1 和 2 与 eaq− 的反应速率常数与硝基苯的反应速率常数处于同一数量级。还估计了由 1 和 2 生成的中间体转化为 5-氟尿嘧啶的效率。