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1H and 13C chemical shifts (1H in bold) as well as 2D peak correlations (Figures S6–S8) identify the photolysis product as 4′,5′-anhydroadenosine. Predicted shifts obtained from ACD/NMR Predictor (Advanced Chemistry Development, Inc.) are shown in parentheses. Predictions of chemical shifts of hydroxyl and amine protons are unreliable and were not obtained.
