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A facile and efficient synthesis of a series of methoxy and ethoxy substituted pterins (characterized by single crystal X-ray structures of 6,7-dimethoxy and diethoxy-pterins) along with 1,4-dioxanopterin is reported along with a possible mechanism for their formation by treatment of pterins with ceric ammonium nitrate in methanol, ethanol, and ethylene glycol respectively. This unequivocal alkoxylation...
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