Total Synthesis of (+)-Papuamine: An Antifungal Pentacyclic Alkaloid from a Marine Sponge, <i>Haliclona </i>sp.
作者:Anthony G. M. Barrett、Mark L. Boys、Terri L. Boehm
DOI:10.1021/jo951413z
日期:1996.1.1
The total synthesis of (+)-papuamine, the antipode of the C(2)-symmetric, optically active, pentacyclic diamine natural product, starting from a chiraldiol is described. The diol is available via an asymmetric Diels-Alder reaction between 1,3-butadiene and di-(-)-menthyl fumarate. The keytransformation in the synthesis is an intramolecular Pd(0)-catalyzed (Stille) coupling reaction to form the central