Synthesis of the Zoanthamine ABC Ring System: Some Surprises from Intramolecular Diels−Alder Reactions
作者:Martin Juhl、Thomas E. Nielsen、Sebastian Le Quement、David Tanner
DOI:10.1021/jo0520691
日期:2006.1.1
total synthesis of the marine alkaloids zoanthamine and norzoanthamine, an elaborate model study was conducted starting from (−)-carvone. In nine steps alkenyl iodides corresponding to the C11−C24 fragment of zoanthamine were obtained. The alkenyl iodides were coupled to various stannanes (C6−C10 fragment) via the Corey modification of the Stille reaction, affording a variety of Diels−Alder precursors