antibiotics photopyrones, pseudopyronines, and violapyrones from bio-renewable triacetate lactone in excellent yields. These pyrones are functionally modified into another set of pyrone natural products by a single O-methylation reaction. The high-yielding gram scale synthesis of four natural products [pseudopyronine A, photopyrone A, pseudopyronine B and photopyrone C] demonstrated the viability for
开发了一种简单的两步二烷基化方案,以优异的产率从
生物可再生
三乙酸内酯合成
生物活性抗生素光
吡喃酮、假
吡喃酮和紫拉
吡喃酮。这些
吡喃酮通过单个O-甲基化反应被功能性修饰成另一组
吡喃酮天然产物。四种
天然产物 [pseudopyronine A、photopyrone A、pseudopyronine B 和 photopyrone C] 的高产克级合成证明了工业应用的可行性。