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 is unique only with pterin (and 5-deaza-pterin) and is unsuccessful with quinoxaline.
已报道了一系列甲氧基和乙氧基取代的蝶呤(以6,7-二甲氧基和二乙氧基蝶呤的单晶X射线结构为特征)与1,4-二氧戊蝶呤的简便有效合成及其可能的机理通过分别在
甲醇,
乙醇和
乙二醇中的
硝酸铈铵处理蝶呤而形成。这种明确的烷氧基化仅在蝶呤(和5-脱氮蝶呤)中才是唯一的,而在
喹喔啉中却不成功。