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Spectral regions of 2D NOESY spectra (τm = 250 ms) of TBA4, TBA9M and TBA13 showing cross-peaks between aromatic and anomeric protons. Annotated cross-peaks correspond to intranucleotide H8/H6-H1′ NOE contacts. Assignments of pyrene protons are present in 1D traces above NOESY spectra.
