Synthesis of the Ring System of Phomactin D Using a Suzuki Macrocyclization
作者:Nicholas C. Kallan、Randall L. Halcomb
DOI:10.1021/ol0062345
日期:2000.8.1
text]The ring system of phomactin D was synthesized in racemic form in an efficient manner from 2,3-dimethylcyclohexanone. Notable transformations include (1) an alkylation of the enolate of a vinylogous thiolester to install a quaternary stereocenter, (2) a conjugate addition of cyanide to an alpha,beta-unsaturated aldehyde, (3) the formation of a Weinreb amide directly from a cyanohydrin, and (4) an intramolecular