摘要:
We prepared a 5-fluorodeoxyuridine (5-FdUrd) derivative possessing azide methyl group (N-3-FdUrd) as a novel radiation-activated prodrug. The parent antitumor agent, 5-FdUrd, was released efficiently from N-3-FdUrd by hypoxic X-irradiation. On the other hand, the activation of N-3-FdUrd was suppressed upon X-irradiation under aerobic conditions. A biological assay using A549 cells revealed that the cytotoxicity of N-3-FdUrd was significantly enhanced by hypoxic X-irradiation. (C) 2011 Elsevier Ltd. All rights reserved.