Reaction of Quinones and Guanidine Derivatives: Simple Access to Bis-2-aminobenzimidazole Moiety of Benzosceptrin and Other Benzazole Motifs
作者:Minh Quan Tran、Ludmila Ermolenko、Pascal Retailleau、Thanh Binh Nguyen、Ali Al-Mourabit
DOI:10.1021/ol403672p
日期:2014.2.7
A new strategy for the synthesis of 2-aminobenzimidazol-6-ols via a reaction of quinones with guanidine derivatives is reported. Sequential application of this methodology provided a simple access to the first benzosceptrin analogue bearing a bis-2-aminoimidazole moiety. A concomitant addition of two guanidines to the naphtho[1′,2′:4,5]imidazo[1,2-a]pyrimidine-5,6-dione, which includes the redox neutral
据报道,通过醌与胍衍生物的反应合成2-氨基苯并咪唑-6-醇的新策略。该方法的顺序应用提供了对具有双-2-氨基咪唑部分的第一个苯并ceptrin类似物的简单访问。同时向萘[1',2':4,5]咪唑并[1,2 - a ]嘧啶-5,6-二酮中添加两个胍,包括氧化还原中性脱苄基化和胍辅助的2裂解-氨基嘧啶部分导致一步合成苯并三萜的游离的具有挑战性的连续的-2--2-氨基咪唑部分。