Figure 9.

a) Chromatographic profile (recorded at 260 nm) of the crude reaction mixture obtained for compound 2 using a gradient from 0 % to 50 % CH₃CN in 10 mM TEAA buffer at 50 °C. Insets: UV spectra extracted for each chromatographic peak; the adduct‐containing DNA shows a specific absorbance at 320 nm. b) MALDI‐ToF mass spectrum of the collected product eluted at 15.6 min and schematic representation of the covalent products produced by photoactivation of compound 2 in the presence of 22AG. (Figure 9 has been slightly modified and has been re‐submitted as a separated .png file. We simply removed the square around Figure 9a and improve the Y axes to make it more readeble)