Total Synthesis of the Antibiotic Kendomycin: A Macrocyclization Using the Tsuji-Trost Etherification
作者:Tetsuya Sengoku、Shu Xu、Kenji Ogura、Yoshinori Emori、Kenji Kitada、Daisuke Uemura、Hirokazu Arimoto
DOI:10.1002/anie.201400305
日期:2014.4.14
total synthesis of kendomycin [(−)‐TAN2162], an ansa‐macrocyclic antibiotic, is reported. The key of the strategy is an unprecedented Tsuji–Trost macrocyclic etherification, followed by a transannular Claisen rearrangement to construct the 18‐membered carbocyclic framework. The oxa‐six‐ and five‐membered rings were also stereoselectively constructed respectively by a cascade oxidative cyclization at an
报道了一种高度立体控制的,聚合的全合成霉素[(-)-TAN2162],一种ansa-大环抗生素。该策略的关键是史无前例的Tsuji-Trost大环醚化,然后进行跨环的Claisen重排,以构建18元碳环框架。氧杂六元和五元环也分别通过在未官能化的苄基位置上的级联氧化环化和使用一锅环氧化/ 5-外-tet-环氧开环而立体选择性地构建。