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. Author manuscript; available in PMC: 2024 May 22.
Published in final edited form as: Angew Chem Int Ed Engl. 2023 Apr 25;62(22):e202302125. doi: 10.1002/anie.202302125

Scheme 1.

Scheme 1.

A. The traditional approaches for accessing β-functionalized carbonyl compounds. B. Recently innovative approaches for direct β-functionalization of carbonyl compounds. C. Representative examples of naturally occurring and synthetic small molecules containing the 6-azabicyclo[3.2.1]octane ring system. D. Reported synthetic routes for 6-azabicyclo[3.2.1]octan-3-one. E. Novel direct β-C–H functionalization strategy in this study.