| abstract |
An object of the present invention is to provide an agent for amplifying the effect of radiation therapy, particularly an antitumor effect, and to provide a radiation effect enhancer based on enhancement of radiation sensitivity. [Solution] [Chemical 1] A radiation effect enhancer in radiation therapy for tumors, particularly gastrointestinal tract tumors, kidney cancers, prostate cancers, and malignant lymphomas, which contain a compound represented by the formula: [Selection figure] None |