作者:Chaoying Zheng、Tao Xie、Haibing He、Shuanhu Gao
DOI:10.1021/acs.orglett.0c03990
日期:2021.1.15
A new approach was developed to achieve the asymmetric total synthesis of (+)-PD-116740, an angucyclinone from the actinomycete isolate (WP 4669). A sequence of asymmetric dihydroxylation followed by oxidative cyclization was applied to stereoselectively construct the core trans-9,10-dihydrophenanthrene-9,10-diol B–C–D ring. A new Cu salt Cu(OH)OTf·NMI2 was found to be the best oxidant to induce the
开发了一种新的方法来实现(+)-PD-116740的不对称全合成,PD-116740是一种来自放线菌分离物的环己酮(WP 4669)。一系列不对称的二羟基化反应和随后的氧化环化反应被用于立体选择性地构建核心的反式-9,10-二氢菲-9,10-二醇B–C–D环。发现新的铜盐Cu(OH)OTf·NMI 2是诱导氧化偶联和酚氧化的最佳氧化剂。