作者:Tushar Kanti Chakraborty、Amit Kumar Chattopadhyay、Subhash Ghosh
DOI:10.1016/j.tetlet.2006.12.088
日期:2007.2
The formal synthesis of (+)-antimycin A3b and the total synthesis of (+)-blastmycinone were achieved using, as a key step, a method developed by us for the synthesis of 2-methyl-1,3-diols via Ti(III)-mediated diastereo- and regioselective opening of trisubstituted 2,3-epoxy alcohols, to carry out the stereoselective construction of the hydroxy-acid segment. An interesting intramolecular radical translocation
(+)-抗霉素A 3b的正式合成和(+)-blastmycinone的总合成使用了我们开发的通过Ti合成2-甲基-1,3-二醇的方法作为关键步骤(III)介导三取代的2,3-环氧醇的非对映和区域选择性开放,以进行羟基酸片段的立体选择性构建。在环氧化物打开过程中发生了有趣的分子内自由基易位,将其邻位的PMB-醚原位转化为“ 1,2- O-(对甲氧基)亚苄基”环。