Total Synthesis of <i>Ganoderma</i> Meroterpenoids Cochlearol B and Its Congeners Driven by Structural Similarity and Biological Homology
作者:Qin Zhou、Xia Ma、Jin‐Bao Qiao、Wen‐Jing He、Ming‐Rui Jiang、Hui Shao、Yu‐Ming Zhao
DOI:10.1002/chem.202400084
日期:2024.3.20
In this study, driven by the high structural similarity between the homologous Ganoderma meroterpenoids cochlearol B and ganocin B, two chemically synthetic strategies were designed and investigated sequentially for the synthesis of cochlearol B from ganocin B. These strategies include intramolecular metal-catalyzed hydrogen atom transfer (MHAT) and intramolecular photochemical [2+2] cycloaddition
本研究利用同源灵芝小萜类化合物耳蜗醇B和ganocin B之间的高度结构相似性,设计并研究了两种化学合成策略,用于从ganocin B合成耳蜗醇B。这些策略包括分子内金属催化氢原子转移(MHAT) 和分子内光化学[2+2]环加成。目的是利用化学合成方法揭示它们潜在的生物合成转化关系。从而实现了cochlearol B、cochlearol T、cochlearol F的高效全合成,以及ganocins A-B、ganocochlearins C-D的正式全合成。此外,通过钯(II)催化的瓦克型/交叉偶联级联反应,开发了一种合成6,6-二取代的6H-二苯并[ b,d ]吡喃及其类似物的新合成方法。