Synthesis 2024; 56(11): 1695-1701
DOI: 10.1055/a-1984-0755
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New Trends in Organic Synthesis from Chinese Chemists

A Concise Total Synthesis of (±)-Stepharine and (±)-Pronuciferine

Authors

  • Ruiming Chen

    a   Sauvage Center for Molecular Sciences, Engineering Research Center of Organo­silicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, College of Chemistry and Molecular Sciences, The Institute for Advanced Studies, Wuhan University, 430072 Wuhan, P. R. of China
  • Shihu Jia

    a   Sauvage Center for Molecular Sciences, Engineering Research Center of Organo­silicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, College of Chemistry and Molecular Sciences, The Institute for Advanced Studies, Wuhan University, 430072 Wuhan, P. R. of China
  • Yuning Man

    a   Sauvage Center for Molecular Sciences, Engineering Research Center of Organo­silicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, College of Chemistry and Molecular Sciences, The Institute for Advanced Studies, Wuhan University, 430072 Wuhan, P. R. of China
  • Hong-Gang Cheng

    a   Sauvage Center for Molecular Sciences, Engineering Research Center of Organo­silicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, College of Chemistry and Molecular Sciences, The Institute for Advanced Studies, Wuhan University, 430072 Wuhan, P. R. of China
  • Qianghui Zhou

    a   Sauvage Center for Molecular Sciences, Engineering Research Center of Organo­silicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric Opto-Electronic Materials, College of Chemistry and Molecular Sciences, The Institute for Advanced Studies, Wuhan University, 430072 Wuhan, P. R. of China
    b   TaiKang Center for Life and Medical Sciences, Wuhan University, 430072 Wuhan, P. R. of China
    c   State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Rd, Shanghai 200032, P. R. of China

We thank the National Natural Science Foundation of China (Grants 21801193, 21871213, and 22071189), Natural Science Foundation of Jiangsu Province (Grant No. BK20210119, H.-G. C.), the Fundamental Research Funds for the Central Universities (2042021kf0214) and the start-up funding from Wuhan University for financial support.


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Abstract

A concise total synthesis of (±)-stepharine and (±)-pronuciferine using readily available reagents as the starting materials is reported. This synthesis features a three-component Catellani reaction/Au-catalyzed 6-exo-dig cyclization for the assembly of 1-methylene-tetrahydroisoquinoline scaffold and an oxidative dearomatization for constructing spiro-cyclohexadienone scaffold.

Supporting Information



Publication History

Received: 29 October 2022

Accepted after revision: 22 November 2022

Accepted Manuscript online:
22 November 2022

Article published online:
06 February 2023

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