Volume 64, Issue 24 e202500921
Communication

Direct Conversion of Aromatic Lactones into Bioisosteres by Carbonyl-to-Boranol Exchange

Yu Zhang

Yu Zhang

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069 China

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Hong Lu

Corresponding Author

Hong Lu

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069 China

E-mail: [email protected]; [email protected]

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Jie Chang

Jie Chang

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069 China

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Peng-Fei Xu

Peng-Fei Xu

State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 China

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Hang Li

Hang Li

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069 China

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Yuan Jin

Yuan Jin

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069 China

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Hao Wei

Corresponding Author

Hao Wei

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710069 China

E-mail: [email protected]; [email protected]

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First published: 07 April 2025
Citations: 4

Graphical Abstract

A nickel-catalyzed group-exchange strategy has been developed for the direct conversion of aromatic lactones into cyclic hemiboronic acid bioisosteres. Scope evaluation and product derivatization experiments demonstrate broad functional-group compatibility and the synthetic value of this strategy. Furthermore, the application of this methodology to the rapid modification of lactone cores in bioactive molecules underscores its practical utility.

Abstract

Bioisosteric replacement is an important strategy in drug discovery and is commonly practiced in medicinal chemistry; however, the incorporation of bioisosteres typically requires laborious multistep de novo synthesis. The direct conversion of a functional group into its corresponding bioisostere is of particular significance in evaluating structure-property relationships. Herein, we report a functional-group-exchange strategy that enables the direct conversion of aromatic lactones, a prevalent motif in bioactive molecules, into their corresponding cyclic hemiboronic acid bioisosteres. Scope evaluation and product derivatization experiments demonstrate the synthetic value and broad functional-group compatibility of this strategy, while the application of this methodology to the rapid remodeling of chromenone cores in bioactive molecules highlights its utility.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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