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. Author manuscript; available in PMC: 2022 Feb 16.
Published in final edited form as: Bioorg Med Chem. 2020 Nov 6;29:115836. doi: 10.1016/j.bmc.2020.115836

Fig. 2.

Fig. 2.

Analysis of changes in compound absorbance resulting from spontaneous hydrolysis of 4. The changes in absorbance spectra of the compounds (20 μM in 0.05 M phosphate buffer, pH 7.4, 20 °C) were monitored over time in solution.