作者:Mike Dischmann、Timo Frassetto、M. André Breuning、Ulrich Koert
DOI:10.1002/chem.201403880
日期:2014.9.1
The total synthesis of the heptacyclic natural product isoquinocyclinone has been achieved. A Hauser annulation was used to assemble the anthraquinone core structure. The unique 2,4,5,6‐tetrahydropyrrolo[2,3‐b]pyrrole substructure was prepared by alkyne addition to a lactone intermediate and subsequent Ni0‐mediated cyanide addition, the conversion of an O,O‐ into an N,O‐acetal, and final intramolecular
已经实现了七环天然产物异喹啉环酮的全合成。豪瑟(Hauser)环空用于组装蒽醌核心结构。独特的2,4,5,6-四氢吡咯并[2,3-b]吡咯亚结构是通过将炔烃添加到内酯中间体上,随后用Ni 0介导的氰化物添加,将O,O-转化为N,O-缩醛和最终的分子内N-烷基化。