Total Syntheses of (±)-<i>cis</i>-Trikentrin A and (±)-<i>cis</i>-Trikentrin B via Electrocyclic Ring Closures of 2,3-Divinylpyrrolines
作者:Raymond J. Huntley、Raymond L. Funk
DOI:10.1021/ol061259a
日期:2006.7.1
[Structure: see text] A convergent and versatile strategy for the diastereoselective syntheses of (+/-)-cis-trikentrin A and B in 10 and 12 steps, respectively, from commercially available N-BOC-2-pyrrolidinone is described. The key step in each of the total syntheses is the construction of the central benzene ring via a facile 6pi-electrocyclic ring closure of an appropriately substituted 2,3-divinylpyrroline