作者:Rui Fu、Jie Chen、Lu-Chuan Guo、Jian-Liang Ye、Yuan-Ping Ruan、Pei-Qiang Huang
DOI:10.1021/ol902180t
日期:2009.11.19
The first asymmetric total synthesis of the unnatural enantiomer of cytotoxic awajanomycin (1) is reported. The synthetic approach features first a convergent strategy using the cross-olefin metathesis reaction to link the lipid side chain 2 and the piperidinone core structure 3. The second feature of the synthesis resides on the construction of segment 3 from the building block 5 via a three-component
报道了细胞毒性阿维霉素的非天然对映异构体的首次不对称全合成(1)。合成方法的特征首先是使用交叉烯烃复分解反应连接脂质侧链2和哌啶酮核心结构3的收敛策略。合成的第二个特征在于通过混合酰亚胺12上的三组分串联反应,由结构单元5构建片段3。通过这项工作,确定了C-11的立体化学和阿瓦那霉素的绝对构型为3 R,5 R,6 S,8 S,11 S。