Total Synthesis of the Reported Structure of Neaumycin B
作者:Jiaming Ding、Amos B. Smith
DOI:10.1021/jacs.3c06573
日期:2023.8.23
stereoselective totalsynthesis of structure 1 assigned to the macrolide natural product neaumycin B is reported in a 2.3% overall yield on 90 mg scale. The synthesis features a gram-scale nickel-catalyzed reductive cross-coupling/spiroketalization tactic to construct the spiroketal core of neaumycin B. The stereostructures of the C3–C6, C8–C14, and C20–C41 segments of synthetic neaumycin B were unambiguously
据报道,大环内酯天然产物新霉素 B 的结构1的立体选择性全合成在 90 mg 规模上的总产率为 2.3%。该合成采用克级镍催化还原交叉偶联/螺酮化策略来构建新霉素 B 的螺酮核心。合成新霉素 B 的 C3–C6、C8–C14 和 C20–C41 片段的立体结构得到了明确验证。通过X射线晶体学。