作者:Paul T. O'Sullivan、Wilm Buhr、Mary Ann M. Fuhry、Justin R. Harrison、John E. Davies、Neil Feeder、David R. Marshall、Jonathan W. Burton、Andrew B. Holmes
DOI:10.1021/ja038353w
日期:2004.2.1
The total synthesis of octalactins A and B has been achieved in 15 steps (longest linear sequence) and 10% overall yield from commercially available materials. Key steps include the Paterson-Aldol reaction for the rapid assembly of the carbonate 46, methylenation of 46 and subsequent Claisen rearrangement of the corresponding alkenyl-substituted cyclic ketene acetal to provide the core unsaturated
八内酯 A 和 B 的全合成已通过 15 个步骤(最长的线性序列)和 10% 的市售材料总产率实现。关键步骤包括用于快速组装碳酸酯 46 的 Paterson-Aldol 反应、46 的亚甲基化和随后相应烯基取代的环烯酮缩醛的 Claisen 重排以提供核心不饱和中环内酯 47,以及使用酶-在中环内酯存在下介导的乙酸盐脱保护。