Total Synthesis and Structural Revision of Vannusals A and B: Synthesis of the Originally Assigned Structure of Vannusal B
作者:K. C. Nicolaou、Adrian Ortiz、Hongjun Zhang、Philippe Dagneau、Andreas Lanver、Michael P. Jennings、Stellios Arseniyadis、Raffaella Faraoni、Dimitrios E. Lizos
DOI:10.1021/ja100740t
日期:2010.5.26
strategy based on the SmI(2)-mediated ring closure utilized vinyl iodide (-)-26 and aldehyde fragment (+/-)-86 as key building blocks, whose lithium-mediated coupling led to isomeric coupling products (+)-87 and (-)-88 (as shown in Scheme 17 in the article). Intermediate (-)-88 was converted, via (-)-89 and (-)-90/(+)-91, to vannusal B structure 2 (as shown in Scheme 18 in the article), whose spectroscopic