Abstract
We designed and synthesized two novel photocaged peroxide compounds, N5TBHP and N6TBHP, featuring nitrogen-containing fused ring coumarin skeletons. Notably, a tetrahydroquinoline fused coumarin derivative, N6TBHP demonstrated significantly higher photocleavage efficiency under visible light at 455 nm compared to N5TBHP, which contains an indoline fused coumarin. This process effectively releases the oxidative stress inducer tert-butylhydroperoxide (TBHP). Additionally, N6TBHP exhibits high resistance to glutathione (GSH), and its UV spectral analysis suggests enhanced intracellular stability due to reduced reactivity with GSH through self-assembly. Furthermore, N6TBHP can release an optimal amount of TBHP into cells under visible light irradiation with minimal cell damage. These properties position N6TBHP as a promising tool for advancing research in intracellular redox signaling.
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