Asymmetric Total Synthesis of (+)-Quinocarcinamide.
Asymmetric Total Synthesis of (+)-Quinocarcinamide.
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DOI:
10.1021/acs.orglett.1c02970
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发表时间:
2021-09
期刊:
影响因子:
5.2
通讯作者:
Lei Li;Li-Li Shi-Li;Kun Wei;Yu-Rong Yang
中科院分区:
文献类型:
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作者:
Lei Li;Li-Li Shi-Li;Kun Wei;Yu-Rong Yang
The first asymmetric total synthesis of (+)-quinocarcinamide (3), an enantiomer of the natural oxidation product from antitumor antibiotic (-)-quinocarcin (1), is described. Key steps include an iridium-catalyzed asymmetric allylic amidation of racemic alcohol 9, olefin cross-metathesis followed by a SN2' to forge tetrahydroisoquinoline, and stereocontrolled 1,3-dipolar cycloaddition between a facilely generated azomethine ylide and tert-butyl acrylate to construct the diazabicyclo[3.2.1]octane ring.