A Novel Synthesis of the 2-Aminoimidazol-4-carbaldehyde Derivatives, Versatile Synthetic Intermediates for 2-Aminoimidazole Alkaloids
作者:Naoki Ando、Shiro Terashima
DOI:10.1055/s-2006-950250
日期:2006.10
The title synthesis was achieved by the reaction of t-butoxycarbonylguanidine with 3-bromo-1,1-dimethoxypropan-2-one as a key step. Starting with 1-tert-butoxycarbonyl-2-tert-butoxycarbonylaminoimidazol-4-carbaldehyde thus obtained expeditious synthesis of oroidin, hymenidin, dispacamide and monobromodispacamide, the representative 2-aminoimidazole alkaloids, was accomplished.
标题合成是通过叔丁氧基羰基胍与 3-溴-1,1-二甲氧基丙-2-酮反应作为关键步骤来实现的。以 1-叔丁氧基羰基-2-叔丁氧基羰基氨基咪唑-4-甲醛为起始原料,快速合成了具有代表性的 2-氨基咪唑生物碱,如甲苷、hymenidin、dispacamide 和 monobromodispacamide。