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Chryssostomos Chatgilialoglu, Mila D'Angelantonio, Maurizio Guerra, Panagiotis Kaloudis and Quinto G. Mulazzani A Reevaluation of the Ambident Reactivity of the Guanine Moiety Towards Hydroxyl Radicals Angewandte Chemie International Edition 48

Version of Record online: 18 FEB 2009 | DOI: 10.1002/anie.200805372

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Radically different: Contrary to previous proposals, the main reaction of the HO. radical with guanosine or 2′-deoxyguanosine is the hydrogen abstraction from the NH2 moiety to give a guanyl radical. This radical, characterized by a broad band in the visible region (around 610 nm), undergoes tautomerization to the most stable isomer.

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