| 摘要 |
PROBLEM TO BE SOLVED: To provide a compound which is easily synthesizable, can generate singlet oxygen just before use and can use immediately, and to provide an agent for generating singlet oxygen. SOLUTION: An 1,4-endoperoxide derivative expressed by general formula (I) (for example, 5-benzyl-6-oxo-5-aza-7,8-dioxabicyclo[2.2.2]octa-2-ene). The singlet oxygen generating agent containing the derivative.
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