1
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Han Y, Wang X, Tao Q, Yang B, Zhu F. Switchable Divergent Photocatalytic C-Glycosylation of Glycosyl Benzoates. Angew Chem Int Ed Engl 2025; 64:e202504504. [PMID: 40084563 DOI: 10.1002/anie.202504504] [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: 02/24/2025] [Revised: 03/13/2025] [Accepted: 03/14/2025] [Indexed: 03/16/2025]
Abstract
Metabolically robust C-glycosides are crucial in various biological and medical applications, underscoring the need for efficient synthesis methods. While radical C-glycosylation reactions are known for their reliability and functional group tolerance, challenges such as glycosyl donor stability and atom economy persist. In this study, we investigate the underexplored potential of condition-controlled divergent synthesis of C-glycosides through a switchable photocatalytic C-glycosylation strategy, involving reductive anomeric C─O bond cleavage. Utilizing simple, readily available, and bench-stable glycosyl benzoates as novel O-based glycosyl radical precursors, we successfully achieve deoxygenative glycosylation of simple alkenes and styryl boronic acids, establishing a versatile platform for C-glycoside synthesis. A critical aspect of the challenging reductive cleavage of these benzoate esters is the introduction of strong single-electron transfer (SET) reductants, combined with Brønsted acids to accelerate fragmentation following substrate reduction. Notably, CO2 •-, generated via the consecutive photon-induced electron transfer process, is utilized for the first time in glycosylation reactions. By meticulously tuning the reaction conditions, including photocatalysts and formate additives, we facilitate the divergent synthesis of alkyl and alkenyl C-glycosides with good to high stereoselectivity and yields. Mechanistic studies provide insight into the reaction pathway and the underlying rationale behind this finely tuned, easily controlled photocatalytic system.
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Affiliation(s)
- Yang Han
- Frontiers Science Center for Transformative Molecules (FSCTM), Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
| | - Xiaoling Wang
- Frontiers Science Center for Transformative Molecules (FSCTM), Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
| | - Qiang Tao
- Frontiers Science Center for Transformative Molecules (FSCTM), Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, P.R. China
| | - Bo Yang
- Frontiers Science Center for Transformative Molecules (FSCTM), Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
| | - Feng Zhu
- Frontiers Science Center for Transformative Molecules (FSCTM), Center for Chemical Glycobiology, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
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2
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Yang Q, Wen MM, Ruan YJ, Wang XL, Zhang CZ, Wang PF, Hu XY, Xiao YH, Liu XG. Stereoretentive Conversion to C-Glycosides from S-Glycosides via Ligand-Coupling on Sulfur(IV). Org Lett 2025; 27:954-960. [PMID: 39836883 DOI: 10.1021/acs.orglett.4c04338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2025]
Abstract
A novel strategy is reported for the stereoselective synthesis of C(sp2)-C(sp3) C-glycosides, which converts heteroaryl S-glycosides into heteroaryl C-glycosides with retention of configuration through a sequential process involving oxidation and Grignard reagent attack. The new method involves the generation of a S(IV) intermediate, followed by ligand coupling of the glycosyl and heteroaryl groups to yield heteroaryl C-glycosides. The diverse heteroaryl C-glycosides were achieved with good efficiency.
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Affiliation(s)
- Qian Yang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Miao-Miao Wen
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Yu-Jun Ruan
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Xiao-Li Wang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Cong-Zhen Zhang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Peng-Fei Wang
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Xin-Yue Hu
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Yu-He Xiao
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
| | - Xu-Ge Liu
- The Zhongzhou Laboratory for Integrative Biology, State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, Henan 475004, China
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3
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Wang Y, Cheng Y, Tao X, Yang W, Zhou Z, Dai Y. Palladium-Catalyzed Stereospecific Glycosylation Enables Divergent Synthesis of N-O-Linked Glycosides. Org Lett 2025; 27:915-921. [PMID: 39787251 DOI: 10.1021/acs.orglett.4c04771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2025]
Abstract
We present a versatile palladium-catalyzed glycosylation platform that enables facile access to structurally diverse N-O-linked glycosides with constantly excellent regio- and stereoselectivities. Importantly, this approach offers a broad substrate scope, low catalyst loadings, and outstanding chemoselectivity, allowing for the selective reaction of oximes/hydroximic acids over hydroxyl groups that would otherwise pose challenges in conventional glycosylation methods. The synthetic utility of this method is further exemplified through a range of synthetic transformations and late-stage modification of bioactive molecules. Overall, our method provides an efficient toolkit for the synthesis of N-O-linked glycosides, which will facilitate their subsequent biological evaluations.
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Affiliation(s)
- Yujuan Wang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yiyang Cheng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Xiaoxue Tao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Wenjie Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Zhen Zhou
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Yuanwei Dai
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, People's Republic of China
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4
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Xu D, Li X, Cui Z, Cao L, Cheng HG, Zhou Q. Practical synthesis of C-aryl glycosides via redox-neutral Borono-Catellani reaction. Chem Commun (Camb) 2025; 61:736-739. [PMID: 39663863 DOI: 10.1039/d4cc05665e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2024]
Abstract
Herein, we describe a practical Borono-Catellani strategy for the efficient synthesis of C-aryl glycosides, with readily available arylboronic esters and glycosyl chlorides as the building blocks. It features mild reaction conditions, excellent diastereoselectivities, and good functional group tolerance. A diverse array of highly decorated C-(hetero)aryl glycosides are obtained in a convergent and redox-neutral manner.
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Affiliation(s)
- Dekang Xu
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric OptoElectronic Materials, College of Chemistry and Molecular Sciences and The Institute for Advanced Studies and TaiKang Center for Life and Medical Sciences, Wuhan University, 430072, Wuhan, China.
| | - Xia Li
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric OptoElectronic Materials, College of Chemistry and Molecular Sciences and The Institute for Advanced Studies and TaiKang Center for Life and Medical Sciences, Wuhan University, 430072, Wuhan, China.
| | - Ziyang Cui
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric OptoElectronic Materials, College of Chemistry and Molecular Sciences and The Institute for Advanced Studies and TaiKang Center for Life and Medical Sciences, Wuhan University, 430072, Wuhan, China.
| | - Liming Cao
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric OptoElectronic Materials, College of Chemistry and Molecular Sciences and The Institute for Advanced Studies and TaiKang Center for Life and Medical Sciences, Wuhan University, 430072, Wuhan, China.
| | - Hong-Gang Cheng
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric OptoElectronic Materials, College of Chemistry and Molecular Sciences and The Institute for Advanced Studies and TaiKang Center for Life and Medical Sciences, Wuhan University, 430072, Wuhan, China.
| | - Qianghui Zhou
- Sauvage Center for Molecular Sciences, Engineering Research Center of Organosilicon Compounds & Materials (Ministry of Education), Hubei Key Lab on Organic and Polymeric OptoElectronic Materials, College of Chemistry and Molecular Sciences and The Institute for Advanced Studies and TaiKang Center for Life and Medical Sciences, Wuhan University, 430072, Wuhan, China.
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5
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Motz RN, Anderson JK, Nolan EM. Re-evaluation of the C-Glucosyltransferase IroB Illuminates Its Ability to C-Glucosylate Non-native Triscatecholate Enterobactin Mimics. Biochemistry 2025; 64:224-237. [PMID: 39718537 DOI: 10.1021/acs.biochem.4c00581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2024]
Abstract
The pathogen-associated C-glucosyltransferase IroB is involved in the biosynthesis of salmochelins, C-glucosylated derivatives of enterobactin (Ent), which is a triscatecholate siderophore of enteric bacteria including Salmonella enterica and Escherichia coli. Here, we reassess the ability of IroB to C-glucosylate non-native triscatecholate mimics of Ent, which may have utility in the design and development of siderophore-based therapeutics and diagnostics. We establish TRENCAM (TC) and MECAM (MC), synthetic Ent analogs with tris(2-aminoethyl)amine- or mesitylene-derived backbones replacing the trilactone core of Ent, respectively, and their monoglucosylated congeners as substrates of IroB. Time course analyses and steady-state kinetic studies, which were performed under conditions that provide enhanced activity relative to prior studies, inform the substrate selectivity and catalytic efficiencies of this enzyme. We extend these findings to the preparation of a siderophore-antibiotic conjugate composed of monoglucosylated TC and ampicillin (MGT-Amp). Examination of its antibacterial activity and receptor specificity demonstrates that MGT-Amp targets pathogenicity because it shows specificty for the pathogen-associated outer membrane receptor IroN. Overall, our findings extend the biochemical characterization of IroB and its substrate scope and illustrate the ability to leverage a bacterial C-glucosyltransferase for non-native chemoenzymatic transformations along with potential applications of salmochelin mimics.
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Affiliation(s)
- Rachel N Motz
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Jaden K Anderson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Elizabeth M Nolan
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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6
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Cheng G, Yang B, Han Y, Lin W, Tao S, Nian Y, Li Y, Walczak MA, Zhu F. Pd-Catalyzed Stereospecific Glycosyl Cross-Coupling of Reversed Anomeric Stannanes for Modular Synthesis of Nonclassical C-Glycosides. PRECISION CHEMISTRY 2024; 2:587-599. [PMID: 39611026 PMCID: PMC11600346 DOI: 10.1021/prechem.4c00042] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 11/30/2024]
Abstract
Nonclassical C-glycosides, distinguished by their unique glycosidic bond connection mode, represent a promising avenue for the development of carbohydrate-based drugs. However, the accessibility of nonclassical C-glycosides hinders broader investigations into their structural features and modes of action. Herein, we present the first example of Pd-catalyzed stereospecific glycosylation of nonclassical anomeric stannanes with aryl or vinyl halides. This method furnishes desired nonclassical aryl and vinyl C-glycosides in good to excellent yields, while allowing for exclusive control of nonclassical anomeric configuration. Of significant note is the demonstration of the generality and practicality of this nonclassical C-glycosylation approach across more than 50 examples, encompassing various protected and unprotected saccharides, deoxy sugars, oligopeptides, and complex molecules. Furthermore, biological evaluation indicates that nonclassical C-glycosylation modifications of drug molecules can positively impact their biological activity. Additionally, extensive computational studies are conducted to elucidate the rationale behind differences in reaction reactivity, unveiling a transmetalation transition state containing silver (Ag) within a six-membered ring. Given its remarkable controllability, predictability, and consistently high chemical selectivity and stereospecificity regarding nonclassical anomeric carbon and Z/E configuration, the method outlined in this study offers a unique solution to the longstanding challenge of accessing nonclassical C-glycosides with exclusive stereocontrol.
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Affiliation(s)
- Guoqiang Cheng
- Frontiers
Science Center for Transformative Molecules (FSCTM), Center for Chemical
Glycobiology, Shanghai Key Laboratory for Molecular Engineering of
Chiral Drugs, Department of Chemical Biology, School of Chemistry
and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Bo Yang
- Frontiers
Science Center for Transformative Molecules (FSCTM), Center for Chemical
Glycobiology, Shanghai Key Laboratory for Molecular Engineering of
Chiral Drugs, Department of Chemical Biology, School of Chemistry
and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yang Han
- Frontiers
Science Center for Transformative Molecules (FSCTM), Center for Chemical
Glycobiology, Shanghai Key Laboratory for Molecular Engineering of
Chiral Drugs, Department of Chemical Biology, School of Chemistry
and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Wei Lin
- School
of Pharmacy, Nanjing University of Chinese
Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Siyuan Tao
- School
of Pharmacy, Nanjing University of Chinese
Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Yong Nian
- School
of Pharmacy, Nanjing University of Chinese
Medicine, Nanjing, Jiangsu 210023, P. R. China
| | - Yingzi Li
- Institute
of Chemical Research of Catalonia (ICIQ), 43007 Tarragona, Spain
| | - Maciej A. Walczak
- Department
of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Feng Zhu
- Frontiers
Science Center for Transformative Molecules (FSCTM), Center for Chemical
Glycobiology, Shanghai Key Laboratory for Molecular Engineering of
Chiral Drugs, Department of Chemical Biology, School of Chemistry
and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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7
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Shelar SV, Davis T, Ryan N, Fisch K, Walczak MA. Si-Linked Glycomimetics through a Stereoselective Silicon Transfer and Anion Addition. J Am Chem Soc 2024; 146:29285-29291. [PMID: 39405276 DOI: 10.1021/jacs.4c10978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2024]
Abstract
We report a synthesis of silicon-linked glycomimetics, demonstrating unique structural properties and metabolic stability due to the inertness of the C-Si bond. Our method focuses on the stereoselective transfer of silicon and anion addition, revealing that chirality at the silicon atom can be controlled through kinetic resolution. This approach allows for the selective generation of 1,2-cis and 1,2-trans isomers via the manipulation of C2-protected silicon ethers and nucleophilic opening of glycal epoxides. We achieved high selectivity at the anomeric carbon and expanded the scope to include various saccharides and substituted silanes. Our findings indicate that silicon transfer occurs intramolecularly and is influenced by the nature of the counterion and reaction conditions. Additionally, chiral silanes produced through our method hold promise for medicinal chemistry applications, addressing significant gaps in the synthesis and utility of glycomimetics. This work opens new avenues for the development of bioactive silicon-based molecules.
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Affiliation(s)
- Santosh V Shelar
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Timothy Davis
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Nicholas Ryan
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Kyle Fisch
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Maciej A Walczak
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
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8
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Ann A, Truong S, Peters J, Mootoo DR. Synthesis of alpha-Gal C-disaccharides. Bioorg Med Chem 2024; 112:117903. [PMID: 39236466 DOI: 10.1016/j.bmc.2024.117903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 08/15/2024] [Accepted: 08/27/2024] [Indexed: 09/07/2024]
Abstract
The synthesis of C-disaccharides of α-d-galactopyranosyl-(1 → 3)-d-galactopyranose (α-Gal), potential tools for studying the biology of α-Gal glycans, is described. The synthetic strategy, centers on the reaction of two easily available precursors 1,2-O-isopropylidene-d-glyceraldehyde and an α-C-glactosyl-E-crotylboronate, which affords a mixture of two diastereomeric anti-crotylation products. The stereoselectivity of this reaction was controlled with (R)- and (S)-TRIP catalysts, and the appropriate diastereomer was transformed to C-linked disaccharides of α-Gal, in which the aglycone segment comprised O-, C- and S-glycoside entities that can enable glycoconjugate synthesis.
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Affiliation(s)
- Alex Ann
- Department of Chemistry, Hunter College and The Graduate Center of the City University of New York, New York, NY 10016, United States
| | - Steven Truong
- Department of Chemistry, Hunter College and The Graduate Center of the City University of New York, New York, NY 10016, United States
| | - Jiwani Peters
- Department of Chemistry, Hunter College and The Graduate Center of the City University of New York, New York, NY 10016, United States
| | - David R Mootoo
- Department of Chemistry, Hunter College and The Graduate Center of the City University of New York, New York, NY 10016, United States.
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9
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Miyamoto Y, Murakami S, Sumida Y, Hirai G, Ohmiya H. Radical C-Glycosylation Using Photoexcitable Unprotected Glycosyl Borate. Chemistry 2024; 30:e202402256. [PMID: 38980084 DOI: 10.1002/chem.202402256] [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: 06/12/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/10/2024]
Abstract
We have developed radical C-glycosylation using photoexcitable unprotected glycosyl borate. The direct excitation of glycosyl borate under visible light irradiation enabled the generation of anomeric radical without any photoredox catalysts. The in situ generated anomeric radical was applicable to the radical addition such as Giese-type addition and Minisci-type reaction to introduce alkyl and heteroaryl groups at the anomeric position. In addition, the radical-radical coupling between the glycosyl borate and acyl imidazolide provided unprotected acyl C-glycosides.
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Affiliation(s)
- Yusuke Miyamoto
- Institute for Chemical Research Kyoto University, 611-0011, Gokasho, Uji, Kyoto, Japan
| | - Sho Murakami
- Institute for Chemical Research Kyoto University, 611-0011, Gokasho, Uji, Kyoto, Japan
| | - Yuto Sumida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 101-0062, Kanda- Surugadai, Chiyoda-ku Tokyo, Japan
| | - Go Hirai
- Graduate School of Pharmaceutical Sciences, Kyushu University, 812-8582, Maidashi, Higashiku, Fukuoka, Japan
| | - Hirohisa Ohmiya
- Institute for Chemical Research Kyoto University, 611-0011, Gokasho, Uji, Kyoto, Japan
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10
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Xiong Y, Dai Y. Palladium-Catalyzed Regio- and Stereoselective Glycosylation of Azole Heterocycles Enables Access to Diverse Heterocyclic N-Glycosides. Org Lett 2024; 26:6878-6883. [PMID: 39106448 DOI: 10.1021/acs.orglett.4c02466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2024]
Abstract
An efficient and practical glycosylation platform for synthesizing N-glycosides by leveraging palladium catalysis is disclosed. This approach enables facile access to diverse heterocyclic N-glycosides with excellent regio- and stereoselectivities and high site selectivity of multiple N atoms. The reaction exhibits a broad substrate scope (65 examples), high functional group tolerance, and easy scalability. Its synthetic utility is demonstrated through late-stage functionalization of pharmaceutically relevant molecules and various diastereoselective transformations of the glycoside products. Overall, our method provides a handy tool for efficient and stereocontrolled synthesis of valuable N-glycosylated heterocycles.
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Affiliation(s)
- Yimeng Xiong
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yuanwei Dai
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
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11
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Shi WY, Ma JJ, Li HY, Chen D, Liu XY, Liang YM. Synthesis of C-Alkyl Glycosides from Alkyl Bromides and Glycosyl Carboxylic Acids via Ni/Photoredox Dual Catalysis. J Org Chem 2024; 89:11136-11147. [PMID: 39106492 DOI: 10.1021/acs.joc.4c00533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2024]
Abstract
C-Alkyl glycosides, an important class of C-glycosides, are widely found in various drugs and natural products. The synthesis of C-alkyl glycosides has attracted considerable attention. Herein, we developed a Ni/photoredox catalyzed decarboxylative C(sp3)-C(sp3) coupling reaction of stable glycosylcarboxylic acids with simple aliphatic bromides to generate C-alkyl glycosides. The method successfully linked several functional molecular fragments (natural products or drugs) to a sugar moiety, showing the extensive application prospects of this transformation. Controlled experiments and DFT calculations demonstrated that the reaction pathway contains a free radical process, and a possible mechanism is proposed.
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Affiliation(s)
- Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jia-Jun Ma
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hu-Yi Li
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Dongping Chen
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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12
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Wu X, Li S, Chen L, Ma S, Ma B, Song L, Qian D. Stereoselective Construction of Multifunctional C-Glycosides Enabled by Nickel-Catalyzed Tandem Borylation/Glycosylation. J Am Chem Soc 2024; 146:22413-22423. [PMID: 39096292 DOI: 10.1021/jacs.4c05485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2024]
Abstract
Stereochemically pure saccharides have indispensable roles in fields ranging from medicinal chemistry to materials science and organic synthesis. However, the development of a simple, stereoselective, and efficient glycosylation protocol to access α- and β-C-glycosides (particularly 2-deoxy entities) remains a persistent challenge. Existing studies have primarily focused on C1 modification of carbohydrates and transformation of glycosyl radical precursors. Here, we innovate by harnessing the in situ generated glycosyl-Ni species to achieve one-pot borylation and glycosylation in a cascade manner, which is enabled by an earth-abundant nickel-catalyzed carboboration of readily accessible glycals without any ligand. This work reveals the potential for the development of a modular and multifunctional glycosylation platform to facilitate the simultaneous introduction of C-C and C-B bonds at the stereogenic center of saccharides, a largely unexploited research area. Preliminary experimental and computational studies indicate that the endocyclic O and the C3 group play important roles in stereoseclectively forging glycosidic bonds. As a result, a diverse range of C-R (R = alkyl, aryl, and alkenyl) and 2-deoxygenated glycosides bearing modifiable boron groups could be rapidly made with excellent stereocontrol and exhibit remarkable functional group tolerance. The synthetic potential is underscored in the late-stage glycosylation of natural products and commercial drugs as well as the facile preparation of various rare sugars, bioactive conjugates, and key intermediates to prorocentin, phomonol, and aspergillide A.
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Affiliation(s)
- Xiaomei Wu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Key Laboratory of Research and Development for Natural Products; School of Pharmacy, Yunnan University, Kunming 650500, P. R. China
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, China
| | - Shijia Li
- Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology (HKUST), Kowloon, 999077 Hong Kong SAR, China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Liqin Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Key Laboratory of Research and Development for Natural Products; School of Pharmacy, Yunnan University, Kunming 650500, P. R. China
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, China
| | - Siwei Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Key Laboratory of Research and Development for Natural Products; School of Pharmacy, Yunnan University, Kunming 650500, P. R. China
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, China
| | - Bin Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Key Laboratory of Research and Development for Natural Products; School of Pharmacy, Yunnan University, Kunming 650500, P. R. China
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, China
| | - Lijuan Song
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Deyun Qian
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Key Laboratory of Research and Development for Natural Products; School of Pharmacy, Yunnan University, Kunming 650500, P. R. China
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, China
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13
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Wu J, Purushothaman R, Kallert F, Homölle SL, Ackermann L. Electrochemical Glycosylation via Halogen-Atom-Transfer for C-Glycoside Assembly. ACS Catal 2024; 14:11532-11544. [PMID: 39114086 PMCID: PMC11301629 DOI: 10.1021/acscatal.4c02322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 08/10/2024]
Abstract
Glycosyl donor activation emerged as an enabling technology for anomeric functionalization, but aimed primarily at O-glycosylation. In contrast, we herein disclose mechanistically distinct electrochemical glycosyl bromide donor activations via halogen-atom transfer and anomeric C-glycosylation. The anomeric radical addition to alkenes led to C-alkyl glycoside synthesis under precious metal-free reaction conditions from readily available glycosyl bromides. The robustness of our e-XAT strategy was further mirrored by C-aryl and C-acyl glycosides assembly through nickela-electrocatalysis. Our approach provides an orthogonal strategy for glycosyl donor activation with expedient scope, hence representing a general method for direct C-glycosides assembly.
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Affiliation(s)
| | | | - Felix Kallert
- Wöhler-Research Institute
for Sustainable Chemistry, Georg-August-Universität
Göttingen, Tammannstraße
2, Göttingen 37077, Germany
| | - Simon L. Homölle
- Wöhler-Research Institute
for Sustainable Chemistry, Georg-August-Universität
Göttingen, Tammannstraße
2, Göttingen 37077, Germany
| | - Lutz Ackermann
- Wöhler-Research Institute
for Sustainable Chemistry, Georg-August-Universität
Göttingen, Tammannstraße
2, Göttingen 37077, Germany
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14
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Lyu MY, Jacobo SA, Brown MK. Diverse Synthesis of C-Glycosides by Stereoselective Ni-Catalyzed Carboboration of Glycals. J Am Chem Soc 2024; 146:18866-18872. [PMID: 38967118 PMCID: PMC11733800 DOI: 10.1021/jacs.4c06246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
C-Glycosides are important structures that are common to natural products and pharmaceutical agents. Established methods for their synthesis involve the reaction of an activated anomeric carbon. In this study, we report a conceptually new approach that involves the stereoselective Ni-catalyzed carboboration of glycals. In these reactions, not only is a C-C bond formed at the anomeric carbon, but a synthetically useful C-B bond is also installed. Upon C-B oxidation, differentially protected C-glycosides to be formed. In addition, stereospecific manipulation of the C-B bond leads to diverse C-glycosides. Finally, we report the application of this method in the synthesis of established C-glycosides, such as C-glycosyl amino acids, as well as a strategy to make all possible diastereomers at C1 and C2.
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Affiliation(s)
- Mao-Yun Lyu
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - Samuel A Jacobo
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
| | - M Kevin Brown
- Department of Chemistry, Indiana University, 800 E. Kirkwood Avenue, Bloomington, Indiana 47405, United States
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15
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Gan Y, Zhou JF, Li X, Liu JR, Liu FJ, Hong X, Ye B. Zirconaaziridine-Mediated Ni-Catalyzed Diastereoselective C(sp 2)-Glycosylation. J Am Chem Soc 2024. [PMID: 38859580 DOI: 10.1021/jacs.4c04587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
In the realm of organic synthesis, the catalytic and stereoselective formation of C-glycosidic bonds is a pivotal process, bridging carbohydrates with aglycones. However, the inherent chirality of the saccharide scaffold often has a substantial impact on the stereoinduction imposed by a chiral ligand. In this study, we have established an unprecedented zirconaaziridine-mediated asymmetric nickel catalysis, enabling the diastereoselective coupling of bench-stable glycosyl phosphates with a range of (hetero)aromatic and glycal iodides as feasible coupling electrophiles. Our developed method showcases a broad scope and a high tolerance for various functional groups. More importantly, precise stereocontrol toward both anomeric configurations of forming C(sp2)-glycosides can be realized by simply utilizing the popular chiral bioxazoline (biOx) ligands in this reductive Ni catalysis. Regarding the operating mechanism, both experimental and computational studies support the occurrence of a redox transmetalation process, leading to the formation of a transient, bimetallic Ni-Zr species that acts as a potent and efficient single-electron reductant in the catalytic process.
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Affiliation(s)
- Yu Gan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jun-Feng Zhou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xuejiao Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Ji-Ren Liu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Fang-Jie Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xin Hong
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
- Beijing National Laboratory for Molecular Sciences, Zhongguancun North First Street, No. 2, Beijing 100190, China
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China
| | - Baihua Ye
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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16
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Margeta R, Schelhaas S, Hermann S, Schäfers M, Niemann S, Faust A. A novel radiolabelled salmochelin derivative for bacteria-specific PET imaging: synthesis, radiolabelling and evaluation. Chem Commun (Camb) 2024; 60:3507-3510. [PMID: 38385843 DOI: 10.1039/d4cc00255e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
For specific imaging of bacterial infections we aimed at targeting the exclusive bacterial iron transport system via siderophore-based radiotracers. De novo synthesis and radiolabeling yielded the salmochelin-based PET radiotracer [68Ga]Ga-RMA693, which showed a favourable biodistribution and a bacteria-specific uptake in an animal model of Escherichia coli infection.
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Affiliation(s)
- Renato Margeta
- European Institute for Molecular Imaging (EIMI), University Münster, Röntgenstraße 16, 48149, Münster, Germany
| | - Sonja Schelhaas
- European Institute for Molecular Imaging (EIMI), University Münster, Röntgenstraße 16, 48149, Münster, Germany
| | - Sven Hermann
- European Institute for Molecular Imaging (EIMI), University Münster, Röntgenstraße 16, 48149, Münster, Germany
| | - Michael Schäfers
- European Institute for Molecular Imaging (EIMI), University Münster, Röntgenstraße 16, 48149, Münster, Germany
| | - Silke Niemann
- Institute of Medical Microbiology, University Hospital Münster, Domagkstraße 10, 48149, Münster, Germany
| | - Andreas Faust
- European Institute for Molecular Imaging (EIMI), University Münster, Röntgenstraße 16, 48149, Münster, Germany
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17
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Zhou Z, Yang J, Yang B, Han Y, Zhu L, Xue XS, Zhu F. Photoredox Nickel-Catalysed Stille Cross-Coupling Reactions. Angew Chem Int Ed Engl 2023; 62:e202314832. [PMID: 37946607 DOI: 10.1002/anie.202314832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/06/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023]
Abstract
The Stille cross-coupling reaction is one of the most common strategies for the construction of C-C bonds. Despite notable strides in the advancement of the Stille reaction, persistent challenges persist in hindering its greener evolution. These challenges encompass multiple facets, such as the high cost of precious metals and ligands, the demand for various additives, and the slow reaction rate. In comparison to the dominant palladium-catalysed Stille reactions, cost-effective nickel-catalysed systems lag behind, and enantioconvergent Stille reactions of racemic stannanes remain undeveloped. Herein, we present a pioneering instance of nickel-catalysed enantioconvergent Stille cross-coupling reactions of racemic stannane reagents, resulting in the formation of C-C bonds in good to high yields with excellent stereoselectivity. This strategy provides a practical, scalable, and operationally straightforward method for the synthesis of C(sp3 )-C(sp3 ), C(sp3 )-C(sp2 ), and C(sp3 )-C(sp) bonds under exceptionally mild conditions (without additives and bases, ambient temperature). The innovative use of synergistic photoredox/nickel catalysis enables a novel single-electron transmetalation process of stannane reagents, providing a new research paradigm of Stille reactions.
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Affiliation(s)
- Zhenghong Zhou
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jimin Yang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, P. R. China
| | - Bo Yang
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yang Han
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Lijuan Zhu
- Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, 200127, P. R. China
| | - Xiao-Song Xue
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai, 200032, P. R. China
| | - Feng Zhu
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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18
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Jiang Y, Zhang Y, Lee BC, Koh MJ. Diversification of Glycosyl Compounds via Glycosyl Radicals. Angew Chem Int Ed Engl 2023; 62:e202305138. [PMID: 37278303 DOI: 10.1002/anie.202305138] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/07/2023]
Abstract
Glycosyl radical functionalization is one of the central topics in synthetic carbohydrate chemistry. Recent advances in metal-catalyzed cross-coupling chemistry and metallaphotoredox catalysis provided powerful platforms for glycosyl radical diversification. In particular, the discovery of new glycosyl radical precursors in conjunction with these advanced reaction technologies have significantly expanded the space for glycosyl compound synthesis. In this Review, we highlight the most recent progress in this area starting from 2021, and the reports included will be categorized based on different reaction types for better clarity.
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Affiliation(s)
- Yi Jiang
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
| | - Yijun Zhang
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
- Department of Chemistry, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, China
| | - Boon Chong Lee
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
| | - Ming Joo Koh
- Department of Chemistry, National University of Singapore, 4 Science Drive 2, Singapore, 117544, Republic of Singapore
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19
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Chemical synthesis of oligosaccharides and their application in new drug research. Eur J Med Chem 2023; 249:115164. [PMID: 36758451 DOI: 10.1016/j.ejmech.2023.115164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/16/2023] [Accepted: 01/25/2023] [Indexed: 02/04/2023]
Abstract
Oligosaccharides are the ubiquitous molecules of life. In order to translate human bioglycosylation into clinical applications, homogeneous samples of oligosaccharides and glycoconjugates can be obtained by chemical, enzymatic or other biological methods for systematic studies. However, the structural complexity and diversity of glycans and their conjugates present a major challenge for the synthesis of such molecules. This review summarizes the chemical synthesis methods of oligosaccharides, the application of oligosaccharides in the field of medicinal chemistry according to their related biological activities, and shows the great prospect of oligosaccharides in the field of pharmaceutical chemistry.
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20
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Yoritate M, Hirai G, Yasutomi H, Takeda D, Higashibayashi S, Sugai T. Transition-Metal-Free β-Selective C-Glycosylation of β-Glycosyl Boronates via Stereoretentive 1,2-Migration. Synlett 2023; 34:347-352. [DOI: 10.1055/a-1989-2541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
AbstractC-Glycoside analogues of native glycans are useful molecular tools for medicinal chemistry and chemical biology due to their resistance to cellular glycoside hydrolases. We previously reported an α-selective direct C-glycosylation of 2-deoxy-β-glycosyl boronate through a Ni/photoredox-catalyzed stereoinvertive cross-coupling reaction. Here we report a complementary stereoretentive synthetic method for the preparation of β-C-glycosides from a similar boronate precursor through the addition of a C(sp2) anion followed by 1,2-migration of the glycosyl donor.
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Affiliation(s)
- Makoto Yoritate
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Go Hirai
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Hiroki Yasutomi
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Daiki Takeda
- Graduate School of Pharmaceutical Sciences, Kyushu University
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21
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Wang C, Xuan B, Huang C, Yao J, Wu C, Sun T. Optimization and Scale-Up of a Continuous Flow Synthesis of Dapagliflozin. Org Process Res Dev 2023. [DOI: 10.1021/acs.oprd.2c00389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Chunchao Wang
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education. Shenyang 110016, P.R. China
| | - Boxin Xuan
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education. Shenyang 110016, P.R. China
| | - Cheng Huang
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education. Shenyang 110016, P.R. China
| | - Jingchun Yao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Chengjun Wu
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education. Shenyang 110016, P.R. China
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. LTD., Linyi, 276005, China
| | - Tiemin Sun
- Key Laboratory of Structure-Based Drug Design and Discovery, Shenyang Pharmaceutical University, Ministry of Education. Shenyang 110016, P.R. China
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22
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Halder S, Addanki RB, Kancharla PK. Regio- and Stereoselective C-Glycosylation of Indoles Using o-[1-( p-MeO-Phenyl)vinyl]benzoates (PMPVB) as Glycosyl Donors under Brønsted Acid Catalysis. J Org Chem 2023; 88:1844-1854. [PMID: 36695723 DOI: 10.1021/acs.joc.2c02426] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The alkene-based o-[1-(p-MeO-phenyl)vinyl]benzoates (PMPVB) donors that can be remotely activated under catalytic Brønsted acidic conditions have been utilized to synthesize the C-linked indolyl glycosides in a regio- and stereoselective manner. The highly reactive glycosyl donors allow the usage of the poorly nucleophilic N-Boc and N-acetyl indole derivatives, leading to the indolyl glycosides in excellent yields and stereoselectivities. Also, conditions were developed for recycling the byproduct, which significantly improves the potential of these donors.
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Affiliation(s)
- Suvendu Halder
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Rupa Bai Addanki
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Pavan K Kancharla
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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23
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Liu Y, Tan Y, Cao G, Shi L, Song Y, Shan W, Zhang M, Li P, Zhou H, Zhang B, Sun Y, Yi W. Bergenin alleviates myocardial ischemia-reperfusion injury via SIRT1 signaling. Biomed Pharmacother 2023; 158:114100. [PMID: 36538860 DOI: 10.1016/j.biopha.2022.114100] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/25/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Myocardial ischemia-reperfusion (MI/R) is a major risk factor for cardiovascular disease. At present, reducing oxidative stress and apoptosis is a crucial therapeutic strategy for ameliorating MI/R injury. However, there is a lack of drugs targeting oxidative stress and apoptosis for the clinical therapy of MI/R. Bergenin is a reportedly effective agent with antioxidative and antiapoptotic activity against acute injury. Nevertheless, the roles and potential mechanisms of bergenin against MI/R injury remain unknown. Here, we hypothesized that bergenin attenuated MI/R-induced apoptosis and reactive oxygen species (ROS) production via SIRT1. Mice were subjected to MI/R and treated with bergenin, after which the cardiac function, cardiomyocyte apoptosis, LDH release, and MDA content were evaluated. In vitro, myocardial injury model of H9c2 cells was induced by simulated ischemia/reperfusion (SI/R), apoptosis and oxidative stress was decreased after treated with bergenin. Bergenin significantly reduced myocardial apoptosis and ROS generation in vitro and improved cardiac function in vivo. Intriguingly, bergenin remarkably decreased apoptosis in cardiac tissue accompanied by SIRT1 upregulation following MI/R injury. Further studies showed that inhibiting SIRT1 blocked bergenin's beneficial impact against apoptosis following SI/R injury through excessive oxidative stress and depression of the Bcl2 to Bax ratio. Collectively, these findings indicate that bergenin alleviates MI/R injury by ameliorating myocardial apoptosis and oxidative damage via the SIRT1 signaling pathway.
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Affiliation(s)
- Yingying Liu
- College of Life Science, Northwest University, Xi'an 710069, China; Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yanzhen Tan
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Guojie Cao
- Department of general medical, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Lei Shi
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yujie Song
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Wenju Shan
- Department of general medical, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Miao Zhang
- Department of general medical, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Panpan Li
- Department of general medical, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Haitao Zhou
- Department of general medical, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Bing Zhang
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yang Sun
- Department of general medical, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Wei Yi
- Department of Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
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24
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Kurahayashi K, Hanaya K, Sugai T, Hirai G, Higashibayashi S. Copper-Catalyzed Stereoselective Borylation and Palladium-Catalyzed Stereospecific Cross-Coupling to Give Aryl C-Glycosides. Chemistry 2023; 29:e202203376. [PMID: 36344464 DOI: 10.1002/chem.202203376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/06/2022] [Accepted: 11/07/2022] [Indexed: 11/09/2022]
Abstract
Metabolically stable C-glycosides are an essential family of compounds in bioactive natural products, therapeutic agents, and biological probes. For their application, development of synthetic methods by connecting glycosides and aglycons with strict stereocontrol at the anomeric carbon, as well as with high functional-group compatibility and environmental compatibility is a pivotal issue. Although Suzuki-Miyaura-type C(sp3 )-C(sp2 ) cross-coupling using glycosyl boronates is a potential candidate for the construction of C-glycosides, neither the cross-coupling itself nor the facile synthesis of the coupling precursor, glycosyl boronates, have been achieved to date. Herein, it was succeeded to develop a copper-catalyzed stereoselective one-step borylation of glycosyl bromides to glycosyl boronates and palladium-catalyzed stereospecific cross-coupling of β-glycosyl borates with aryl bromides to give aryl β-C-glycosides, in which the β-configuration of the anomeric carbon of the glycosyl trifluoroborates is stereoretentively transferred to that of the resulting aryl C-glycosides.
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Affiliation(s)
- Kazuki Kurahayashi
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kengo Hanaya
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Takeshi Sugai
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Go Hirai
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shuhei Higashibayashi
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
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25
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Zhao H, Jose AT, Asany A, Khan SM, Biscoe MR. Pd-Catalyzed Arylation of Secondary α-Alkoxytricyclohexylstannanes. Org Lett 2022; 24:8714-8718. [PMID: 36399722 DOI: 10.1021/acs.orglett.2c03729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We have developed a general process for the formation of α-arylethers via the Pd-catalyzed arylation of secondary α-alkoxytricyclohexylstannanes. Incorporation of cyclohexyl spectator ligands into the alkylstannane and the use of the electron-deficient ligand JackiePhos (1) are critical for achieving selective alkyl transfer in this process. This system circumvents the need for a coordinating/directing oxygen-protecting group to promote selective alkyl transfer and enables α-tetrahydropyran, α-tetrahydrofuran, and open-chain secondary α-alkoxy groups to be employed efficiently in Pd-catalyzed Stille reactions with a broad range of aryl electrophiles. These findings suggest that selective transmetalation of a single marginally activated secondary alkyl unit from Sn to Pd should be broadly achievable provided that unactivated secondary alkyl ligands comprise the other three groups of the tetraalkylstannane.
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Affiliation(s)
- Haoran Zhao
- Department of Chemistry & Biochemistry, The City College of New York (CCNY), 160 Convent Avenue, New York, New York 10031, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York (CUNY), 365 Fifth Avenue, New York, New York 10016, United States
| | - Anju Treesa Jose
- Department of Chemistry & Biochemistry, The City College of New York (CCNY), 160 Convent Avenue, New York, New York 10031, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York (CUNY), 365 Fifth Avenue, New York, New York 10016, United States
| | - Alisajat Asany
- Department of Chemistry & Biochemistry, The City College of New York (CCNY), 160 Convent Avenue, New York, New York 10031, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York (CUNY), 365 Fifth Avenue, New York, New York 10016, United States
| | - Shahrukh M. Khan
- Department of Chemistry & Biochemistry, The City College of New York (CCNY), 160 Convent Avenue, New York, New York 10031, United States
| | - Mark R. Biscoe
- Department of Chemistry & Biochemistry, The City College of New York (CCNY), 160 Convent Avenue, New York, New York 10031, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York (CUNY), 365 Fifth Avenue, New York, New York 10016, United States
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26
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Liu CF. Recent Advances on Natural Aryl- C-glycoside Scaffolds: Structure, Bioactivities, and Synthesis-A Comprehensive Review. Molecules 2022; 27:7439. [PMID: 36364266 PMCID: PMC9654268 DOI: 10.3390/molecules27217439] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 09/23/2023] Open
Abstract
Aryl-C-glycosides, of both synthetic and natural origin, are of great significance in medicinal chemistry owing to their unique structures and stability towards enzymatic and chemical hydrolysis as compared to O-glycosides. They are well-known antibiotics and potent enzyme inhibitors and possess a wide range of biological activities such as anticancer, antioxidant, antiviral, hypoglycemic effects, and so on. Currently, a number of aryl-C-glycoside drugs are on sale for the treatment of diabetes and related complications. This review summarizes the findings on aryl-C-glycoside scaffolds over the past 20 years, concerning new structures (over 200 molecules), their bioactivities-including anticancer, anti-inflammatory, antioxidant, antivirus, glycation inhibitory activities and other pharmacological effects-as well as their synthesis.
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Affiliation(s)
- Chen-Fu Liu
- School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, China
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27
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Wu J, Kaplaneris N, Pöhlmann J, Michiyuki T, Yuan B, Ackermann L. Remote C-H Glycosylation by Ruthenium(II) Catalysis: Modular Assembly of meta-C-Aryl Glycosides. Angew Chem Int Ed Engl 2022; 61:e202208620. [PMID: 35877556 PMCID: PMC9825995 DOI: 10.1002/anie.202208620] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Indexed: 01/11/2023]
Abstract
The prevalence of C-aryl glycosides in biologically active natural products and approved drugs has long motivated the development of efficient strategies for their selective synthesis. Cross-couplings have been frequently used, but largely relied on palladium catalyst with prefunctionalized substrates, while ruthenium-catalyzed C-aryl glycoside preparation has thus far proven elusive. Herein, we disclose a versatile ruthenium(II)-catalyzed meta-C-H glycosylation to access meta-C-aryl glycosides from readily available glycosyl halide donors. The robustness of the ruthenium catalysis was reflected by mild reaction conditions, outstanding levels of anomeric selectivity and exclusive meta-site-selectivity.
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Affiliation(s)
- Jun Wu
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Nikolaos Kaplaneris
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Julia Pöhlmann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Takuya Michiyuki
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
- Wöhler Research Institute for Sustainable ChemistryTammanstraße 237077GöttingenGermany
| | - Binbin Yuan
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
- Wöhler Research Institute for Sustainable ChemistryTammanstraße 237077GöttingenGermany
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28
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Abuduaini T, Li S, Roy V, Agrofoglio LA, Martin OR, Nicolas C. Tunable Approach to C-Linked Analogs of Glycosamines. J Org Chem 2022; 87:13396-13405. [PMID: 36082689 DOI: 10.1021/acs.joc.2c01650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of (1R)-2-amino-2-deoxy-β-l-gulopyranosyl benzene and the α and β forms of 2-amino-2-deoxy-l-idopyranosyl benzene derivatives was accomplished through stereospecific addition of tributylstannyllithium to readily available (SR)- or (SS)-N-tert-butanesulfinyl-arabinofuranosylamine building blocks, followed by stereoretentive Pd-catalyzed Migita-Kosugi-Stille cross-coupling, stereoselective reduction, and an activation-cyclization strategy. Application of this methodology paves the way to new three-dimensional chemical space and preparation of unknown (non-natural) and complex 2-amino-2-deoxy sugars of biological interest.
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Affiliation(s)
- Tuniyazi Abuduaini
- Institut de Chimie Organique et Analytique, UMR CNRS 7311, Université d'Orléans, Rue de Chartres, BP 6759, 45067 Orléans Cedex 2, France
| | - Sizhe Li
- Institut de Chimie Organique et Analytique, UMR CNRS 7311, Université d'Orléans, Rue de Chartres, BP 6759, 45067 Orléans Cedex 2, France
| | - Vincent Roy
- Institut de Chimie Organique et Analytique, UMR CNRS 7311, Université d'Orléans, Rue de Chartres, BP 6759, 45067 Orléans Cedex 2, France
| | - Luigi A Agrofoglio
- Institut de Chimie Organique et Analytique, UMR CNRS 7311, Université d'Orléans, Rue de Chartres, BP 6759, 45067 Orléans Cedex 2, France
| | - Olivier R Martin
- Institut de Chimie Organique et Analytique, UMR CNRS 7311, Université d'Orléans, Rue de Chartres, BP 6759, 45067 Orléans Cedex 2, France
| | - Cyril Nicolas
- Institut de Chimie Organique et Analytique, UMR CNRS 7311, Université d'Orléans, Rue de Chartres, BP 6759, 45067 Orléans Cedex 2, France
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29
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Gou X, Li Y, Shi W, Luan Y, Ding Y, An Y, Huang Y, Zhang B, Liu X, Liang Y. Ruthenium‐Catalyzed Stereo‐ and Site‐Selective
ortho‐
and
meta
‐C−H Glycosylation and Mechanistic Studies. Angew Chem Int Ed Engl 2022; 61:e202205656. [DOI: 10.1002/anie.202205656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Xue‐Ya Gou
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation Chinese University of Hong Kong Shatin Hong Kong China
| | - Wei‐Yu Shi
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yu‐Yong Luan
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Ya‐Nan Ding
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yang An
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yan‐Chong Huang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Bo‐Sheng Zhang
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730000 China
| | - Xue‐Yuan Liu
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
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30
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Wu J, Kaplaneris N, Pöhlmann J, Michiyuki T, Yuan B, Ackermann L. Remote C–H Glycosylation by Ruthenium(II) Catalysis: Modular Assembly of meta‐C‐Aryl Glycosides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jun Wu
- University of Göttingen: Georg-August-Universitat Gottingen WISCh GERMANY
| | | | - Julia Pöhlmann
- University of Göttingen: Georg-August-Universitat Gottingen WISCh GERMANY
| | - Takuya Michiyuki
- University of Göttingen: Georg-August-Universitat Gottingen WISCh GERMANY
| | - Binbin Yuan
- University of Göttingen: Georg-August-Universitat Gottingen WISCh GERMANY
| | - Lutz Ackermann
- Georg-August-Universitaet Goettingen Institut fuer Organische und Biomolekulare Chemie Tammannstr. 2 37077 Goettingen GERMANY
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31
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Gou X, Li Y, Shi W, Luan Y, Ding Y, An Y, Huang Y, Zhang B, Liu X, Liang Y. Ruthenium‐Catalyzed Stereo‐ and Site‐Selective
ortho‐
and
meta
‐C−H Glycosylation and Mechanistic Studies. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xue‐Ya Gou
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation Chinese University of Hong Kong Shatin Hong Kong China
| | - Wei‐Yu Shi
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yu‐Yong Luan
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Ya‐Nan Ding
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yang An
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yan‐Chong Huang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Bo‐Sheng Zhang
- College of Chemistry and Chemical Engineering Northwest Normal University Lanzhou 730000 China
| | - Xue‐Yuan Liu
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
| | - Yong‐Min Liang
- State Key Laboratory of Applied Organic Chemistry Lanzhou University Lanzhou 730000 China
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32
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Liu F, Huang H, Sun L, Yan Z, Tan X, Li J, Luo X, Ding H, Xiao Q. P(v) intermediate-mediated E1cB elimination for the synthesis of glycals. Chem Sci 2022; 13:5588-5596. [PMID: 35694351 PMCID: PMC9116453 DOI: 10.1039/d2sc01423h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/22/2022] [Indexed: 12/23/2022] Open
Abstract
Glycals are highly versatile and useful building blocks in the chemistry of carbohydrate and natural products. However, the practical synthesis of glycals remains a long-standing and mostly unsolved problem in synthetic chemistry. Herein, we present an unprecedented approach to make a variety of glycals using phosphonium hydrolysis-induced, P(v) intermediate-mediated E1cB elimination. The method provides a highly efficient, practical and scalable strategy for the synthesis of glycals with good generality and excellent yields. Furthermore, the strategy was successfully applied to late-stage modification of complex drug-like molecules. Additionally, the corresponding 1-deuterium-glycals were produced easily by simple t BuONa/D2O-hydrolysis-elimination. Mechanistic investigations indicated that the oxaphosphorane intermediate-mediated E1cB mechanism is responsible for the elimination reaction.
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Affiliation(s)
- Fen Liu
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Haiyang Huang
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Longgen Sun
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Zeen Yan
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Xiao Tan
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Jing Li
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Xinyue Luo
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Haixin Ding
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
| | - Qiang Xiao
- Key Laboratory of Organic Chemistry, Institute of Organic Chemistry, Jiangxi Science & Technology Normal University Nanchang 330013 Jiangxi Province China
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33
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Wu J, Kopp A, Ackermann L. Synthesis of C-Oligosaccharides through Versatile C(sp 3 )-H Glycosylation of Glycosides. Angew Chem Int Ed Engl 2022; 61:e202114993. [PMID: 35015329 PMCID: PMC9306939 DOI: 10.1002/anie.202114993] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Indexed: 12/12/2022]
Abstract
C-oligosaccharides are pharmacologically relevant because they are more hydrolysis-resistant than O-oligosaccharides. Despite indisputable advances, C-oligosaccharides continue to be underdeveloped, likely due to a lack of efficient and selective strategies for the assembly of the interglycosidic C-C linkages. In contrast, we, herein, report a versatile and robust strategy for the synthesis of structurally complex C-oligosaccharides via catalyzed C(sp3 )-H activations. Thus, a wealth of complex interglycosidic (2→1)- and (1→1)-C-oligosaccharides becomes readily available by palladium-catalyzed C(sp3 )-H glycoside glycosylation. The isolation of key palladacycle intermediates and experiments with isotopically-labeled compounds identified a trans-stereoselectivity for the C(sp3 )-H glycosylation. The glycoside C(sp3 )-H activation manifold was likewise exploited for the diversification of furanoses, pyranoses and disaccharides.
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Affiliation(s)
- Jun Wu
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Adelina Kopp
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
- DZHK (German Centre for Cardiovascular Research)Potsdamer Straße 5810785BerlinGermany
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34
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Chen A, Xu L, Zhou Z, Zhao S, Yang T, Zhu F. Recent advances in glycosylation involving novel anomeric radical precursors. J Carbohydr Chem 2022. [DOI: 10.1080/07328303.2022.2031207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Anrong Chen
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Lili Xu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zhenghong Zhou
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Shiyin Zhao
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, China
| | - Tianyi Yang
- Research and Development, Corden Pharma Colorado, Boulder, Colorado, USA
| | - Feng Zhu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
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35
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Bosko C, Vannam R, Peczuh MW. Synthesis of ring-expanded homologs of 3-amino pyranosides. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Synthesis of C‐Oligosaccharides through Versatile C(sp3)–H Glycosylation of Glycosides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Ding WY, Liu HH, Cheng JK, Yao H, Xiang SH, Tan B. Palladium catalyzed decarboxylative β- C-glycosylation of glycals with oxazol-5-(4 H)-ones as acceptors. Org Chem Front 2022. [DOI: 10.1039/d2qo01308h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Palladium catalyzed decarboxylative glycosylation of bicyclic glycals affords a series of C-glycosylated oxazol-5-(4H)-ones with high efficiency and exquisite chemo- and stereoselectivity at the anomeric center under mild reaction conditions.
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Affiliation(s)
- Wei-Yi Ding
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Huan-Huan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jun Kee Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Hui Yao
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, 443002, China
| | - Shao-Hua Xiang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Bin Tan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
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38
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Hussain N, Hussain A. Advances in Pd-catalyzed C-C bond formation in carbohydrates and their applications in the synthesis of natural products and medicinally relevant molecules. RSC Adv 2021; 11:34369-34391. [PMID: 35497292 PMCID: PMC9042403 DOI: 10.1039/d1ra06351k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 09/27/2021] [Indexed: 12/13/2022] Open
Abstract
Advances in the Pd-catalyzed synthesis of C-glycosides and branched sugars are summarized herein and the strategies are categorized based on named reactions or types of sugar moieties involved in the reactions. These include cross-coupling reactions, C-H activations, and carbonylative cross-coupling reactions. Applications of Pd-catalyzed C-glycosylation reactions are discussed in the synthesis of natural products and biologically active molecules such as bergenin, papulacandin D, and SGLT2-inhibitors. Important mechanistic cycles are drawn and the mechanisms for how Pd-activates the sugar moieties for various coupling partners are discussed. The directing group-assisted C-glycosylation and some intramolecular C-H activation reactions are also included.
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Affiliation(s)
- Nazar Hussain
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, BHU Varanasi-221005 India
| | - Altaf Hussain
- Department of Chemistry, Govt. Degree College Poonch J&K India 185101
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39
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Zhu F, Powell WC, Jing R, Walczak MA. Organometallic Ala M Reagents for Umpolung Peptide Diversification. CHEM CATALYSIS 2021; 1:870-884. [PMID: 34738092 PMCID: PMC8562471 DOI: 10.1016/j.checat.2021.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Selective modifications of peptides and proteins have emerged as a promising strategy to develop novel mechanistic probes and prepare compounds with translational potentials. Here, we report alanine carbastannatranes AlaSn as a universal synthon in various C-C and C-heteroatom bond-forming reactions. These reagents are compatible with peptide manipulation techniques and can undergo chemoselective conjugation in minutes when promoted by Pd(0). Despite their increased nucleophilicity and propensity to transfer the alkyl group, C(sp3)-C(sp2) coupling with AlaSn can be accomplished at room temperature under buffered conditions (pH 6.5-8.5). We also show that AlaSn can be easily transformed into several canonical L- and D-amino acids in arylation, acylation, and etherification reactions. Furthermore, AlaSn can partake in macrocyclizations exemplified by the synthesis of medium size cyclic peptides with various topologies. Taken together, metalated alanine AlaSn demonstrates unparalleled scope and represents a new type of umpolung reagents suitable for structure-activity relationship studies and peptide diversification.
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Affiliation(s)
- Feng Zhu
- Department of Chemistry, University of Colorado, Boulder, CO 80309, United States
- Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. C
- These authors contributed equally
| | - Wyatt C. Powell
- Department of Chemistry, University of Colorado, Boulder, CO 80309, United States
- These authors contributed equally
| | - Ruiheng Jing
- Department of Chemistry, University of Colorado, Boulder, CO 80309, United States
| | - Maciej A. Walczak
- Department of Chemistry, University of Colorado, Boulder, CO 80309, United States
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40
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Sun Q, Zhang H, Wang Q, Qiao T, He G, Chen G. Stereoselective Synthesis of C-Vinyl Glycosides via Palladium-Catalyzed C-H Glycosylation of Alkenes. Angew Chem Int Ed Engl 2021; 60:19620-19625. [PMID: 34228869 DOI: 10.1002/anie.202104430] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/22/2021] [Indexed: 12/12/2022]
Abstract
C-vinyl glycosides are an important class of carbohydrates and pose a unique synthetic challenge. A new strategy has been developed for stereoselective synthesis of C-vinyl glycosides via Pd-catalyzed directed C-H glycosylation of alkenes with glycosyl chloride donors using an easily removable bidentate auxiliary. Both the γ C-H bond of allylamines and the δ C-H bond of homoallyl amine substrates can be glycosylated in high efficiency and with excellent regio- and stereoselectivity. The resulting C-vinyl glycosides can be further converted to a variety of C-alkyl glycosides with high stereospecificity. These reactions offer a broadly applicable method to streamline the synthesis of complex C-vinyl glycosides from easily accessible starting materials.
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Affiliation(s)
- Qikai Sun
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Huixing Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Quanquan Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Tianjiao Qiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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41
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Sun Q, Zhang H, Wang Q, Qiao T, He G, Chen G. Stereoselective Synthesis of
C
‐Vinyl Glycosides via Palladium‐Catalyzed C−H Glycosylation of Alkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104430] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qikai Sun
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Huixing Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Quanquan Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Tianjiao Qiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
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42
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Shi WY, Ding YN, Zheng N, Gou XY, Zhang Z, Chen X, Luan YY, Niu ZJ, Liang YM. Highly regioselective and stereoselective synthesis of C-Aryl glycosides via nickel-catalyzed ortho-C-H glycosylation of 8-aminoquinoline benzamides. Chem Commun (Camb) 2021; 57:8945-8948. [PMID: 34397048 DOI: 10.1039/d1cc03589d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C-Aryl glycosides are of high value as drug candidates. Here a novel and cost-effective nickel catalyzed ortho-CAr-H glycosylation reaction with high regioselectivity and excellent α-selectivity is described. This method shows great functional group compatibility with various glycosides, showing its synthetic potential. Mechanistic studies indicate that C-H activation could be the rate-determining step.
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Affiliation(s)
- Wei-Yu Shi
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Ya-Nan Ding
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Nian Zheng
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Xue-Ya Gou
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Yu-Yong Luan
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Zhi-Jie Niu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
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43
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Vaňková K, Rahm M, Choutka J, Pohl R, Parkan K. Facile Approach to C-Glucosides by Using a Protecting-Group-Free Hiyama Cross-Coupling Reaction: High-Yielding Dapagliflozin Synthesis. Chemistry 2021; 27:10583-10588. [PMID: 34048112 DOI: 10.1002/chem.202101052] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Indexed: 12/16/2022]
Abstract
Access to unprotected (hetero)aryl pseudo-C-glucosides via a mild Pd-catalysed Hiyama cross-coupling reaction of protecting-group-free 1-diisopropylsilyl-d-glucal with various (hetero)aryl halides has been developed. In addition, selected unprotected pseudo-C-glucosides were stereoselectively converted into the corresponding α- and β-C-glucosides, as well as 2-deoxy-β-C-glucosides. This methodology was applied to the efficient and high-yielding synthesis of dapagliflozin, a medicament used to treat type 2 diabetes mellitus. Finally, the versatility of our methodology was proved by the synthesis of other analogues of dapagliflozin.
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Affiliation(s)
- Karolína Vaňková
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Michal Rahm
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Jan Choutka
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Gilead Sciences & IOCB Research Centre, Flemingovo nám. 2, 166 10, Prague, Czech Republic
| | - Kamil Parkan
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague 6, Czech Republic
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44
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Xia L, Fan W, Yuan XA, Yu S. Photoredox-Catalyzed Stereoselective Synthesis of C-Nucleoside Analogues from Glycosyl Bromides and Heteroarenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02088] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Liwen Xia
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023 China
| | - Wenjing Fan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165 China
| | - Xiang-Ai Yuan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165 China
| | - Shouyun Yu
- State Key Laboratory of Analytical Chemistry for Life Science, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023 China
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45
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Harnessing anomeric anions to synthesize α- and β-deoxyaminoglycosides. TRENDS IN CHEMISTRY 2021. [DOI: 10.1016/j.trechm.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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46
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Zhao G, Yao W, Kevlishvili I, Mauro JN, Liu P, Ngai MY. Nickel-Catalyzed Radical Migratory Coupling Enables C-2 Arylation of Carbohydrates. J Am Chem Soc 2021; 143:8590-8596. [PMID: 34086440 DOI: 10.1021/jacs.1c03563] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Nickel catalysis offers exciting opportunities to address unmet challenges in organic synthesis. Herein we report the first nickel-catalyzed radical migratory cross-coupling reaction for the direct preparation of 2-aryl-2-deoxyglycosides from readily available 1-bromosugars and arylboronic acids. The reaction features a broad substrate scope and tolerates a wide range of functional groups and complex molecular architectures. Preliminary experimental and computational studies suggest a concerted 1,2-acyloxy rearrangement via a cyclic five-membered-ring transition state followed by nickel-catalyzed carbon-carbon bond formation. The novel reactivity provides an efficient route to valuable C-2-arylated carbohydrate mimics and building blocks, allows for new strategic bond disconnections, and expands the reactivity profile of nickel catalysis.
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Affiliation(s)
- Gaoyuan Zhao
- Department of Chemistry, State University of New York, Stony Brook, New York 11794, United States
| | - Wang Yao
- Department of Chemistry, State University of New York, Stony Brook, New York 11794, United States
| | - Ilia Kevlishvili
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jaclyn N Mauro
- Department of Chemistry, State University of New York, Stony Brook, New York 11794, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States.,Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Ming-Yu Ngai
- Department of Chemistry, State University of New York, Stony Brook, New York 11794, United States.,Institute of Chemical Biology and Drug Discovery, State University of New York, Stony Brook, New York 11794, United States
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47
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Abstract
Stereoselective reactions at the anomeric carbon constitute the cornerstone of preparative carbohydrate chemistry. Here, we report stereoselective C-arylation and etherification reactions of anomeric trifluoroborates derived from BMIDA esters. These reactions are characterized by high anomeric selectivities for 2-deoxysugars and broad substrate scope (24 examples), including disaccharides and trifluoroborates with free hydroxyl groups. Taken together, this new class of carbohydrate reagents adds the palette of anomeric nucleophile reagents suitable for efficient installation of C-C bonds.
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Affiliation(s)
- Eric M Miller
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Maciej A Walczak
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
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48
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Mou Z, Wang J, Zhang X, Niu D. Stereoselective Preparation of
C
‐Aryl Glycosides
via
Visible‐Light‐Induced Nickel‐Catalyzed Reductive Cross‐Coupling of Glycosyl Chlorides and Aryl Bromides. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100343] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ze‐Dong Mou
- Department of Emergency State Key Laboratory of Biotherapy and Cancer Center West China Hospital
- School of Chemical Engineering Sichuan University Chengdu 610041 People's Republic of China
| | - Jia‐Xi Wang
- Department of Emergency State Key Laboratory of Biotherapy and Cancer Center West China Hospital
- School of Chemical Engineering Sichuan University Chengdu 610041 People's Republic of China
| | - Xia Zhang
- Department of Emergency State Key Laboratory of Biotherapy and Cancer Center West China Hospital
- School of Chemical Engineering Sichuan University Chengdu 610041 People's Republic of China
| | - Dawen Niu
- Department of Emergency State Key Laboratory of Biotherapy and Cancer Center West China Hospital
- School of Chemical Engineering Sichuan University Chengdu 610041 People's Republic of China
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49
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Wei Y, Ben-Zvi B, Diao T. Diastereoselective Synthesis of Aryl C-Glycosides from Glycosyl Esters via C-O Bond Homolysis. Angew Chem Int Ed Engl 2021; 60:9433-9438. [PMID: 33438338 PMCID: PMC8044010 DOI: 10.1002/anie.202014991] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/10/2020] [Indexed: 12/20/2022]
Abstract
C-aryl glycosyl compounds offer better in vivo stability relative to O- and N-glycoside analogues. C-aryl glycosides are extensively investigated as drug candidates and applied to chemical biology studies. Previously, C-aryl glycosides were derived from lactones, glycals, glycosyl stannanes, and halides, via methods displaying various limitations with respect to the scope, functional-group compatibility, and practicality. Challenges remain in the synthesis of C-aryl nucleosides and 2-deoxysugars from easily accessible carbohydrate precursors. Herein, we report a cross-coupling method to prepare C-aryl and heteroaryl glycosides, including nucleosides and 2-deoxysugars, from glycosyl esters and bromoarenes. Activation of the carbohydrate substrates leverages dihydropyridine (DHP) as an activating group followed by decarboxylation to generate a glycosyl radical via C-O bond homolysis. This strategy represents a new means to activate alcohols as a cross-coupling partner. The convenient preparation of glycosyl esters and their stability exemplifies the potential of this method in medicinal chemistry.
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Affiliation(s)
- Yongliang Wei
- Chemistry Department, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Benjamin Ben-Zvi
- Chemistry Department, New York University, 100 Washington Square East, New York, NY, 10003, USA
| | - Tianning Diao
- Chemistry Department, New York University, 100 Washington Square East, New York, NY, 10003, USA
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50
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Wei Y, Ben‐zvi B, Diao T. Diastereoselective Synthesis of Aryl
C
‐Glycosides from Glycosyl Esters via C−O Bond Homolysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014991] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yongliang Wei
- Chemistry Department New York University 100 Washington Square East New York NY 10003 USA
| | - Benjamin Ben‐zvi
- Chemistry Department New York University 100 Washington Square East New York NY 10003 USA
| | - Tianning Diao
- Chemistry Department New York University 100 Washington Square East New York NY 10003 USA
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