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Yang W, Zhao Z, Lan Y, Dong Z, Chang R, Bai Y, Liu S, Li SJ, Niu L. Heterocoupling Two Similar Benzyl Radicals by Dual Photoredox/Cobalt Catalysis. Angew Chem Int Ed Engl 2025; 64:e202421256. [PMID: 39718362 DOI: 10.1002/anie.202421256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2024] [Revised: 12/02/2024] [Accepted: 12/23/2024] [Indexed: 12/25/2024]
Abstract
Transition-metal-regulated radical cross coupling enables the selective bonding of two distinct transient radicals, whereas the catalytic method for sorting two almost identical transient radicals, especially similar benzyl radicals, is still rare. Herein, we show that leveraging dual photoredox/cobalt catalysis can selectively couple two similar benzyl radicals. Using easily accessible methylarenes and phenylacetates (benzyl N-hydroxyphthalimide (NHPI) esters) as benzyl radical sources, a range of unsymmetrical 1,2-diarylethane classes via the 1°-1°, 1°-2°, 1°-3°, 2°-2°, 2°-3° and 3°-3° couplings were obtained with broad functional group tolerance. Besides the photochemical continuous flow synthesis, the one-pot procedure that directly uses phenylacetic acids and NHPI as the starting materials to avoid the pre-preparation of benzyl NHPI esters for the gram-scale synthesis is also feasible and affords good yields, showcasing the synthetic utility of our protocol.
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Affiliation(s)
- Wei Yang
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
| | - Zhenyan Zhao
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
| | - Yu Lan
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, 453007, Henan, P. R. China
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Chemical Theory and Mechanism, Chongqing University, Chongqing, 401331, P. R. China
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, Jiangsu, P. R. China
| | - Zhou Dong
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
| | - Ruiying Chang
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
| | - Yihang Bai
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
| | - Shihan Liu
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, 475004, Henan, P. R. China
| | - Shi-Jun Li
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, 453007, Henan, P. R. China
| | - Linbin Niu
- College of Chemistry, Pingyuan Laboratory, Zhengzhou University, 100 Science Avenue, Zhengzhou, 450001, Henan, P. R. China
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, 453007, Henan, P. R. China
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Çifci G, Aviyente V, Akten ED, Monard G. Assessing protein-ligand binding modes with computational tools: the case of PDE4B. J Comput Aided Mol Des 2017; 31:563-575. [PMID: 28534194 DOI: 10.1007/s10822-017-0024-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 05/13/2017] [Indexed: 01/31/2023]
Abstract
In a first step in the discovery of novel potent inhibitor structures for the PDE4B family with limited side effects, we present a protocol to rank newly designed molecules through the estimation of their IC[Formula: see text] values. Our protocol is based on reproducing the linear relationship between the logarithm of experimental IC[Formula: see text] values [[Formula: see text](IC[Formula: see text])] and their calculated binding free energies ([Formula: see text]). From 13 known PDE4B inhibitors, we show here that (1) binding free energies obtained after a docking process by AutoDock are not accurate enough to reproduce this linear relationship; (2) MM-GB/SA post-processing of molecular dynamics (MD) trajectories of the top ranked AutoDock pose improves the linear relationship; (3) by taking into account all representative structures obtained by AutoDock and by averaging MM-GB/SA computations on a series of 40 independent MD trajectories, a linear relationship between [Formula: see text](IC[Formula: see text]) and the lowest [Formula: see text] is achieved with [Formula: see text].
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Affiliation(s)
- Gülşah Çifci
- Department of Chemistry, Boğaziçi University, 34342, Bebek, Istanbul, Turkey
| | - Viktorya Aviyente
- Department of Chemistry, Boğaziçi University, 34342, Bebek, Istanbul, Turkey
| | - E Demet Akten
- Bioinformatics and Genetic, Kadir Has University, 34083, Cibali, Istanbul, Turkey
| | - Gerald Monard
- Université de Lorraine, UMR 7565 SRSMC, Boulevard des Aiguillettes, B.P. 70239, 54506, Vandoeuvre-les-Nancy, France. .,CNRS, UMR 7565 SRSMC, Boulevard des Aiguillettes, B.P. 70239, 54506, Vandoeuvre-les-Nancy, France.
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