A Concise Asymmetric Synthesis of (-)-Virolin, (-)-Surinamensin, (-)-Raphidecursinol B and (-)-Polysphorin

[摘要]：Highly concise and general asymmetric syntheses of biologically important natural (-)-8,4'-oxyneolignans [(-)-virolin, (-)-surinamensin, (-)-raphidecursinol B, and (-)-polysphorin] are reported. The key step in the synthesis is the Evan's syn-aldol reaction to achieve the adducts with the desired stereochemistry. The four biologically important plant metabolites were synthesized using two common intermediates.

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