A Unified Strategy for the Syntheses of Angucyclinone Antibiotics: Total Syntheses of Tetrangulol, Kanglemycin M, X-14881-E, and Anhydrolandomycinone
作者:Devendar Goud Vanga、Krishna P. Kaliappan
DOI:10.1002/ejoc.201200049
日期:2012.4
accomplish the total syntheses of tetrangulol, kanglemycin M, X-14881-E, and anhydrolandomycinone in moderate to good overall yields. The requisite diene was synthesized in excellent yield from a known enyne through an intramolecular enyne metathesis. The scope of this flexible and divergent strategy can be extended to the syntheses of similar scaffolds and unnatural aromatic angucyclinones.
利用顺序分子内烯炔复分解、Diels-Alder/芳构化、光氧化和一锅消除/芳构化反应,开发了一种用于合成Angucyclinone抗生素的统一策略。在 Diels-Alder 反应中引入了该序列的多样性,其中用各种适当官能化的醌作为亲二烯体处理普通二烯以完成四丁醇、康乐霉素 M、X-14881-E 和脱水兰霉素酮的全合成。总产量。所需的二烯是从已知的烯炔通过分子内烯炔复分解以优异的产率合成的。这种灵活而发散的策略的范围可以扩展到类似支架和非天然芳香环环素酮的合成。