Tandem Diels−Alder/Fragmentation Approach to the Synthesis of Eleutherobin
作者:Jeffrey D. Winkler、Kevin J. Quinn、Colin H. MacKinnon、Steven D. Hiscock、Emily C. McLaughlin
DOI:10.1021/ol0345226
日期:2003.5.1
[reaction: see text] A synthesis of 28, the carbon framework of the eleutherobin aglycone, is reported in a 15-step sequence from readily available starting materials. The tandem Diels-Alder reaction of 6 and 7 to produce 18, in which three new rings and six new stereocenters are formed, is a key step in the reaction sequence.