期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 144, 期 20, 页码 8932-8937出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.2c03861
关键词
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资金
- Samsung Science and Technology Foundation [SSTF-BA1701-13]
- National Research Foundation of Korea (NRF) - KoreaN Government (MSIT) [NRF-2021R1A2C2011203]
In this study, we successfully synthesized dimeric high-oxidation-state securinega alkaloid Flueggeacosine B via two synthetic routes. The second-generation synthesis was more streamlined and a new reaction was developed to provide a direct pathway for the synthesis of compounds with a conjugated dicarbonyl moiety.
We completed the synthesis of dimeric high-oxidation-state securinega alkaloidflueggeacosine B via two syntheticroutes from allosecurinine. Thefirst-generation synthesis (seven overall steps) involved a Liebeskind-Srogl cross-coupling reactionfor the union of two functionalized fragments, the organostannane and the thioester. As a means to further streamline the syntheticroute, we have developed a visible-light-mediated Cu-catalyzed cross-dehydrogenative coupling (CDC) reaction between analdehyde and an electron-deficient olefin. This enabled the second-generation synthesis offlueggeacosine B from allosecurinine infour overall steps. The newly developed CDC reaction paves a direct way to a conjugated dicarbonyl moiety, a ubiquitous structuralmoiety present in various natural products.
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