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Page 8 of 9 Wang et al. Chem Synth 2023;3:9 https://dx.doi.org/10.20517/cs.2022.44

Scheme 7. Proposed reaction mechanism.

DECLARATIONS
Acknowledgments
We gratefully thank the assistance of SUSTech Core Research Facilities, Yang Yu (HRMS, SUSTech).
Computational work was supported by the Center for Computational Science and Engineering at SUSTech,
and the CHEM high-performance supercomputer cluster (CHEM-HPC) located at the Department of
Chemistry, SUSTech.

Authors’ contributions
Designing the experiments, writing the manuscript, and being responsible for the whole work: Li P
Performing the experiments: Wang T
Synthesizing the substrates and data review: Wang T, Chen X, Wan Q
Determining the absolute configuration of product 3aa: Shen B, Yu P

Availability of data and materials
Detailed experimental procedures and spectroscopic data were published as Supplementary Materials in the
journal.

Financial support and sponsorship
The authors acknowledge the financial support from National Natural Science Foundation of China
(21871128), Guangdong Innovative Program (2019BT02Y335), and the Guangdong Provincial Key
Laboratory of Catalysis (2020B121201002).

Conflicts of interest
All authors declared that there are no conflicts of interest.

Ethical approval and consent to participate
Not applicable.

Consent for publication
Not applicable.