Total Synthesis of Lamellarins D, H, and R and Ningalin B

Total Synthesis of Lamellarins D, H, and R and Ningalin B
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片层素 D、H、R 和宁加林 B 的全合成

DOI:
10.1021/ol1027877
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发表时间:
2011-01-21
期刊:
影响因子:
5.2
通讯作者:
Jia, Yanxing
Jia, Yanxing
中科院分区:
化学1区
文献类型:
--
作者:
Li, Qingjiang;Jiang, Jingqian;Jia, Yanxing

文献摘要

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从相应的醛和胺开始,实现了片螺素D(7步)、H(7步)和R(5步)以及宁苷B(5步)的简明全合成。该合成以三个氧化反应为关键步骤,包括AgOAc介导的氧化偶联反应以构建吡咯核,Pb(OAc)(4)诱导的氧化环化反应以形成内酯,以及Kita的氧化反应以形成吡咯-芳烃C-C键。
A concise total synthesis of lamellarins D (7 steps), H (7 steps), and R (5 steps) and ningalin B (5 steps) is achieved starting from the corresponding aldehydes and amines. The synthesis features three oxidative reactions as key steps in a biomimetic manner, involving an AgOAc-mediated oxidative coupling reaction to construct the pyrrole core, a Pb(OAc)(4)-induced oxidative cyclization to form the lactone, and Kita's oxidation reaction to form the pyrrole-arene C-C bond.