Abstract
A novel derivative of acetylene Kaede protein chromophore (Z)-2-((4-(diethylamino) phenyl) ethynyl)-5-(4-hydroxybenzylidene)-3-methyl-3,5-dihydro-4H-imidazol-4-one was synthesized by a modified Sonogashira reaction. In comparison with the classical GFP chromophore analog, the compound exhibits a prominent shift of absorption and emission maxima to the long-wavelength region. The value of Stock’s shift of the newly synthesized compound reached almost 150 nm.
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The study was supported by the Russian Science Foundation as part of research project No. 16-14-10364.
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Zaitseva, E.R., Smirnov, A.Y., Mishin, A.S. et al. Synthesis and Optical Properties of the New Acetylene Kaede Chromophore Analog. Russ J Bioorg Chem 46, 458–461 (2020). https://doi.org/10.1134/S1068162020030231
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DOI: https://doi.org/10.1134/S1068162020030231