Synthesis of <i>cis-</i>Solamin Using a Permanganate-Mediated Oxidative Cyclization
作者:Alexander R. L. Cecil、Richard C. D. Brown
DOI:10.1021/ol026669n
日期:2002.10.1
[GRAPHICS]cis-Solamin (1) and its diastereoisomer 14 have been synthesized in 13 steps using the diastereoselective permanganate-promoted oxidative cyclization of 1,5-dienes to create the tetrahydrofuran diol core. Notably, no protecting groups are required during the stages of fragment assembly.
Total Synthesis and Preliminary Biological Evaluation of <i>cis</i>-Solamin Isomers
作者:Alex R. L. Cecil、Yulai Hu、María J. Vicent、Ruth Duncan、Richard C. D. Brown
DOI:10.1021/jo049909g
日期:2004.5.1
An efficient totalsynthesis of cis-solamin (1) has been achieved in 21% overall yield and with a longest linear sequence of just 11 steps from aldehyde 8. A key feature of the approach was the use of asymmetric permanganate-promoted oxidative cyclization to introduce four of the five required stereocenters in a single step. The use of robust and chemoselective methodology meant that the use of protecting