作者:Jeremy D. Mason、Daniel W. Terwilliger、Aditya R. Pote、Andrew G. Myers
DOI:10.1021/jacs.1c03529
日期:2021.7.28
iboxamycin, an antibiotic candidate bearing a fused bicyclic amino acid residue, is presented. A pivotal transformation in the route involves an intramolecular hydrosilylation–oxidation sequence to set the ring-fusion stereocenters of the bicyclic scaffold. Other notable features of the synthesis include a high-yielding, highly diastereoselective alkylation of a pseudoephenamine amide, a convergent sp3–sp2
介绍了伊波沙霉素的克级合成,伊波沙霉素是一种带有融合双环氨基酸残基的候选抗生素。该路线的关键转变涉及分子内氢化硅烷化-氧化序列以设置双环支架的环融合立体中心。该合成的其他显着特征包括假苯胺酰胺的高产率、高度非对映选择性烷基化、会聚 sp 3 -sp 2 Negishi 偶联和一锅转缩醛化还原反应以形成目标化合物的氧杂环丁烷环。这种合成策略的实施提供了大量的伊波沙霉素,以允许其在小鼠感染模型中进行体内分析。