γ-Radiolysis of 2′-deoxy-5-fluorouridine derivatives with sulfur-containing substituents
作者:Tokuyuki Kuroda、Koji Hisamura、Nobuhiro Nakamizo、Yoshio Otsuji
DOI:10.1002/jhet.5570290517
日期:1992.8
2′-Deoxy-5-fluorouridine (5-FUdR) derivatives having various types of sulfur-containing substituents at the 5′-O-position were synthesized and their γ-radiolyses were studied in aqueous solutions. The γ-radiolysis of compounds having 1,3-dithiol-2-yl and 1,3-dithian-2-yl substituents at the 5′-O-position efficiently gave 5-FUdR, specifically via the attack of hydroxyl radical. On the other hand, the
合成了在5'- O位置具有各种类型的含硫取代基的2'-脱氧-5-氟尿苷(5-FUdR)衍生物,并在水溶液中研究了它们的γ辐射。在5'- O-位具有1,3-二硫醇-2-基和1,3-二硫-2-基取代基的化合物的γ辐射分解有效地产生了5-FUdR,特别是通过羟基自由基的攻击。另一方面,在5'- O-位具有磺酰基甲基取代基的化合物的γ射线分解产生5-FUdR的效率较低,特别是通过水合电子的攻击。讨论了这些反应的机理特征。