Studies toward Frondosin A and Its Analogues. Formal Total Synthesis of (±)-Frondosin A
作者:Xin Li、Alec E. Keon、Jonathan A. Sullivan、Timo V. Ovaska
DOI:10.1021/ol8011343
日期:2008.8.7
Two reaction sequences commencing with different starting materials were successfully employed for the synthesis of frondosin A analogues, including (+/-)-frondosin A dimethyl ether. Construction of the bicyclo[5.4.0]undecane core in each case was achieved through an expedient microwave-assisted tandem 5-exo cyclization--Claisen rearrangement process.