Insights into Long-Range Structural Effects on the Stereochemistry of Aldol Condensations: A Practical Total Synthesis of Desoxyepothilone F
作者:Chul Bom Lee、Zhicai Wu、Fei Zhang、Mark D. Chappell、Shawn J. Stachel、Ting-Chao Chou、Yongbiao Guan、Samuel J. Danishefsky
DOI:10.1021/ja010039j
日期:2001.6.1
high-yielding synthesis of dEpoF. The reduction of the keto group at C3 via a Noyori protocol after Suzuki coupling had proved to be very difficult. In our current approach, two consecutive aldol reactions are used to fashion the acyl sector. In the first aldol condensation, C6 becomes attached to C7. Following protection at C7, a two-carbon acetate equivalent is used to join C2 and C3 with very high asymmetric