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Updated: May 29, 2026

An In-House-Built and Light-Emitting-Diode-Based Photodynamic Therapy Device for Enhancing Verteporfin Cytotoxicity in a 2D Cell Culture Model
Published on: January 13, 2023
Synthesis of β-functionalized temoporfin derivatives for an application in photodynamic therapy
Daniel Aicher1, Susanna Gräfe, Christian B W Stark
1Universität Leipzig, Institut für Organische Chemie, Johannisallee 29, 04103 Leipzig, Germany.
Abstract:
The synthesis of novel β-functionalized derivatives of the clinically used photosensitizer Temoporfin has been achieved by nucleophilic addition reactions to a corresponding diketo chlorin. The β-substituted dihydroxychlorin products exhibit a strong absorption in the red spectral region, a high singlet oxygen quantum yield, and were found to be highly effective in in vitro assays against HT-29 tumor cells.
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