| 摘要 |
<p>Compounds represented by general formula (I) or salts thereof, wherein R?1, R2, R3, R4, R5, and R6¿ each independently represents hydrogen, halogeno, C¿1-6? alkyl, or C1-6 alkoxyl; R?7 and R8¿ each independently represents C¿1-6? alkyl or optionally substituted aryl; R?9 and R10¿ each independently represents hydrogen, C¿1-6? alkyl, or C1-6 alkoxyl; and R?11¿ represents hydrogen or C¿1-12? alkanoyl. The compounds are substantially nonfluorescent and react with singlet oxygen under physiological conditions to give a fluorescent substance. They are hence useful as a reagent for singlet oxygen determination.</p> |
