作者:Sandip Guchhait、Shamba Chatterjee、Ravi Sankar Ampapathi、Rajib Kumar Goswami
DOI:10.1021/acs.joc.6b02838
日期:2017.3.3
A convergent and flexible strategy for the stereoselective total synthesis of the reported structure of baulamycin A and its congeners has been developed for the first time. Synthetic highlights include a Crimmins aldol reaction to construct the C-1′ and C-14 centers, a Crimmins acetate aldol reaction to generate the hydroxy group at the C-13 position, Horner–Wadsworth–Emmons olefination to form the
首次开发了一种聚合的灵活策略,用于报道的鲍拉霉素A及其同类物的立体选择性全合成。合成亮点包括建立C-1'和C-14中心的Crimmins羟醛反应,在C-13位置生成羟基的Crimmins乙酸羟醛反应,Horner–Wadsworth–Emmons烯化反应以形成C 9 –C 10键,和Evans甲基化安装C-8中心。这项合成研究表明,报导的鲍拉霉素A的结构需要修改,因为其光谱数据与合成的鲍拉霉素A的光谱数据不同。