dihydrodiol intermediate, which is rapidly converted into lycoricidine through site‐selective syn‐1,4‐hydroxyamination and deprotection. The total synthesis of narciclasine is accomplished by the late‐stage, amide‐directed C−H hydroxylation of a lycoricidine intermediate. Moreover, the general applicability of this strategy to access dihydroxylated biphenyls is demonstrated with several examples.
lycoricidine和narciclasine的总合成是由亲油菌介导的
溴苯脱芳香性二羟基化作用实现的。随后的转正Suzuki偶联和环还原反应提供了关键的联芳基二氢二醇中间体,该中间体通过位点选择性syn -1,
4-羟基胺化和脱保护作用迅速转化为lycoricidine 。纳西clasine的总合成是通过甘
氨酸
吡啶中间体的酰胺基化的C-H的晚期阶段完成的。此外,通过几个实例证明了该策略接近二羟基化
联苯的普遍适用性。