作者:H. Dias、Carl Lovely、Panduka Koswatta、Rasapalli Sivappa
DOI:10.1055/s-0029-1216929
日期:2009.9
A biomimetically guided total synthesis of the Leucetta-derived aminoimidazole alkaloid, calcaridine A, is described. The synthesis relies on position selective metalations of a 4,5-diiodoimidazole derivative to provide a tetrasubstituted imidazole. Subjection of this polysubstituted imidazole derivative to oxidative rearrangement with a Davis oxaziridine provides the corresponding imidazolone core of calcaridine A.
描述了一种仿生指导的全合成方法,用于合成源自Leucetta的氨基咪唑生物碱卡尔卡里丁A。该合成依赖于对4,5-二碘咪唑衍生物的选择性金属化,以提供四取代的咪唑。将这种多取代的咪唑衍生物进行氧化重排,使用Davis氧杂喹啉,得到卡尔卡里丁A的相应咪唑酮核心。