The [math] radical specifically oxidizes 2'-deoxyguanosine at its guanylic moiety. The guanylic radical resulting from this one-electron oxidation is followed by a first-order kinetics process. This is distinctively observed in alkaline solutions (pH ≥ 11) where a new transient could be characterized. This transient exhibits spectra that are similar to those observed with guanine. It is suggested that the oxidized nucleoside radical undergoes a monomolecular process to form an oxidized guanine radical.
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Faraggi et al. (1994) studied this question.
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