1
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Zargar IA, Rasool B, Bappa SK, Mukherjee D. Synthesis of aryl enopyranones directly from glycals and aromatic halides to access 2-deoxy-β-C-aryl glycosides. Org Biomol Chem 2024; 22:6941-6945. [PMID: 39120529 DOI: 10.1039/d4ob01172d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
An efficient synthesis of aryl enopyranones via an oxidative Heck-type coupling reaction between ether protected D/L-glycals and different aryl halides is developed. This one-step method attaches an aryl group at the C-1 position keeping the C-1/C-2 double bond intact via the Saegusa-Ito type oxidation, thus facilitating the synthesis of medicinally important 2-deoxy-β-aryl-C-glycosides after Pd/C reduction.
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Affiliation(s)
- Irshad Ahmad Zargar
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine (IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| | - Bisma Rasool
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine (IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| | - S K Bappa
- Department of Chemical Sciences, Bose Institute Kolkata, EN 80, Sector V, Bidhan Nagar, Kolkata-700091, WB, India
| | - Debaraj Mukherjee
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
- Department of Chemical Sciences, Bose Institute Kolkata, EN 80, Sector V, Bidhan Nagar, Kolkata-700091, WB, India
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2
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Chen A, Han Y, Wu R, Yang B, Zhu L, Zhu F. Palladium-catalyzed Suzuki-Miyaura cross-couplings of stable glycal boronates for robust synthesis of C-1 glycals. Nat Commun 2024; 15:5228. [PMID: 38898022 PMCID: PMC11187158 DOI: 10.1038/s41467-024-49547-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 06/07/2024] [Indexed: 06/21/2024] Open
Abstract
C-1 Glycals serve as pivotal intermediates in synthesizing diverse C-glycosyl compounds and natural products, necessitating the development of concise, efficient and user-friendly methods to obtain C-1 glycosides is essential. The Suzuki-Miyaura cross-coupling of glycal boronates is notable for its reliability and non-toxic nature, but glycal donor stability remains a challenge. Herein, we achieve a significant breakthrough by developing stable glycal boronates, effectively overcoming the stability issue in glycal-based Suzuki-Miyaura coupling. Leveraging the balanced reactivity and stability of our glycal boronates, we establish a robust palladium-catalyzed glycal-based Suzuki-Miyaura reaction, facilitating the formation of various C(sp2)-C(sp), C(sp2)-C(sp2), and C(sp2)-C(sp3) bonds under mild conditions. Notably, we expand upon this achievement by developing the DNA-compatible glycal-based cross-coupling reaction to synthesize various glycal-DNA conjugates. With its excellent reaction reactivity, stability, generality, and ease of handling, the method holds promise for widespread appication in the preparation of C-glycosyl compounds and natural products.
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Grants
- We are grateful for financial support from the National Key R&D Program of China (Grant No. 2023YFA1508800, F. Z.), National Science Foundation (Grant No. 22301178, F. Z.), Shanghai Pilot Program for Basic Research - Shanghai Jiao Tong University (Grant No. 21TQ1400210, F. Z.), Fundamental Research Funds for the Central Universities (Grant No. 22X010201631, F. Z.), the Open Grant from the Pingyuan Laboratory (Grant No. 2023PY-OP-0102, F. Z.), Natural Science Foundation of Shanghai (Grant No. 21ZR1435600, F. Z.), Shanghai Sailing Program (Grant No 21YF1420600, F. Z.). Part of this study was supported by the National Science Foundation (Grant No. 22301180, B. Y.).
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Affiliation(s)
- Anrong Chen
- Frontiers Science Center for Transformative Molecules, 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, PR China
| | - Yang Han
- Frontiers Science Center for Transformative Molecules, 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, PR China
| | - Rongfeng Wu
- Discovery Chemistry Unit, HitGen Inc., Chengdu, Sichuan, PR China
| | - Bo Yang
- Frontiers Science Center for Transformative Molecules, 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, PR China
| | - Lijuan Zhu
- Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian Road, Shanghai, PR China.
| | - Feng Zhu
- Frontiers Science Center for Transformative Molecules, 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, PR China.
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3
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Wei X, Zeng M, Li Y, Wang D, Wang J, Liu H. Palladium(II)-Catalyzed Heck Coupling: Direct Stereoselective Synthesis of C-Aryl Glycosides from Nonactivated Glycals and Thianthrenium Salts. Org Lett 2024. [PMID: 38498594 DOI: 10.1021/acs.orglett.4c00654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Here, we report an efficient Pd(II)-catalyzed Heck coupling reaction utilizing modular and readily available thianthrenium salts. The tunability and ease of thianthrenium salts facilitated the integration of glycals with drugs, natural products, and peptides. This method allows the incorporation of diverse glycals into structurally varied aglycon components without directing groups or prefunctionalization and provides a practical method for synthesizing C-aryl glycosides, offering a new avenue for the production of complex glycosides with potential applications.
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Affiliation(s)
- Xinxin Wei
- School of Science, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Mingjie Zeng
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Yazhou Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Dechuan Wang
- School of Science, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Jiang Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Lingang Laboratory, Shanghai 200031, China
| | - Hong Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- China Pharmaceutical University, Nanjing, Jiangsu 211198, China
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4
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Das P, Thakur R. NFSI mediated C3-ether oxidation of glycals for the synthesis of hex-3-enuloses. Carbohydr Res 2024; 536:109032. [PMID: 38219634 DOI: 10.1016/j.carres.2024.109032] [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: 12/05/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/16/2024]
Abstract
Hex-3-enuloses constitute a vital carbohydrate synthetic intermediate that provide access to wide range of chiral molecules through diverse derivatizations. Herein we report synthesis of these fascinating scaffolds by oxidation of C3-ether protections on glycals in presence of N-fluorobenzenesulfonimide (NFSI) under Cu(I) catalysed conditions. Benzyl, methyl and silyl ethers have been efficiently oxidized to the carbonyl group. The oxidation has been found to be highly regioselective where an array of protecting groups were tolerant to the reaction conditions. Pyranosyl glycals from various commercially available sugars have been studied in this work to evaluate the broad substrate scope.
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Affiliation(s)
- Pradip Das
- Department of Chemistry, National Institute of Technology Patna, Patna, 800005, Bihar, India
| | - Rima Thakur
- Department of Chemistry, National Institute of Technology Patna, Patna, 800005, Bihar, India.
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5
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Dubbu S. Versatile applications of 3-OxoGlycals: A review. Carbohydr Res 2024; 536:109016. [PMID: 38215663 DOI: 10.1016/j.carres.2023.109016] [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: 10/20/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/14/2024]
Abstract
3-Oxoglycals are versatile building blocks with extensive applications in glycochemistry, organic, and bio-organic sciences. They serve as powerful synthons, enabling the development of diverse organic structures. This review highlights the utility of easily obtainable 3-oxoglycals as fundamental building blocks for synthesizing various compounds, including rare sugars, N-inserted compounds, fused heterocycles, medium ring compounds, polycyclic molecules, cycloadducts, and axially chiral molecules. Some of these compounds exhibit significant biological activities, while others possess valuable photophysical properties. The simplicity of these reactions, using readily available starting materials under favorable conditions, makes 3-oxoglycals a valuable tool for creating novel molecules, benefiting the scientific community in various fields.
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Affiliation(s)
- Sateesh Dubbu
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, IL, 61801, USA.
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6
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Parida SP, Das T, Ahemad MA, Pati T, Mohapatra S, Nayak S. Recent advances on synthesis of C-glycosides. Carbohydr Res 2023; 530:108856. [PMID: 37315353 DOI: 10.1016/j.carres.2023.108856] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 05/17/2023] [Accepted: 05/29/2023] [Indexed: 06/16/2023]
Abstract
In recent years, C-glycosides have emerged as significant building blocks for many naturally occurring alkaloids and pharmaceutically active drug molecules. Therefore, significant efforts have been devoted to the construction of structurally important C-glycosidic linkages in carbohydrate compounds. Herein, we have summarized the recent developments of diverse synthesis of C-glycoside core between the time period from 2019 to 2022 focusing on different catalytic strategies, such as (i) transition-metal, and (ii) metal-free catalytic approaches. Further, the transition metal catalyzed C-glycosylations have been categorized into four sub classes: (a) metal based C-H activation, (b) cross-coupling reaction, (c) glycosyl radical intermediate-based process, and (d) Others.
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Affiliation(s)
| | - Tapaswini Das
- Department of Chemistry, Ravenshaw University, Cuttack, 753003, India
| | | | - Tapaswini Pati
- Department of Chemistry, Ravenshaw University, Cuttack, 753003, India
| | | | - Sabita Nayak
- Department of Chemistry, Ravenshaw University, Cuttack, 753003, India.
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7
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Synergistic Pd/Cu catalysis enabled cross-coupling of glycosyl stannanes with sulfonium salts to access C-aryl/alkenyl glycals. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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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: 5] [Impact Index Per Article: 2.5] [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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9
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Kanaujiya VK, Tiwari V, Pattanaik K, Sabiah S, Kandasamy J. Synthesis of Glycouronamides by the Transamidation Approach at Room Temperature. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200315] [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)
| | - Varsha Tiwari
- IIT BHU: Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | | | | | - Jeyakumar Kandasamy
- Indian Institute of Technology (BHU) Chemistry Varanasi 221005 Varanasi INDIA
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10
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Sridhar PR, Ali I, Lakshmi MVK. Synthesis of Hexenuloses and a Library of Disaccharides Possessing 3-oxo-glycal Unit. J Org Chem 2022; 87:8939-8955. [PMID: 35772022 DOI: 10.1021/acs.joc.2c00663] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An expeditious method for the synthesis of monosaccharides and disaccharides possessing 3-oxo-glycal units is revealed. Several monosaccharides and disaccharide-derived glycals are converted to the corresponding hexenuloses in three steps involving halo-alkoxylation, dehydrohalogenation, and ketalyzation reactions. A number of 3-oxo-glycals are synthesized to show the methodology's importance and generality. Further, the protocol is successfully applied to synthesize a rare-sugar disaccharide donor unit present as part of the trisaccharide moiety in the reported natural product, versipelostatin.
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Affiliation(s)
- Perali Ramu Sridhar
- School of Chemistry, University of Hyderabad, C. R. Rao Road, Gachibowli, Hyderabad 500 046, India
| | - Intzar Ali
- School of Chemistry, University of Hyderabad, C. R. Rao Road, Gachibowli, Hyderabad 500 046, India
| | - M V Kamala Lakshmi
- School of Chemistry, University of Hyderabad, C. R. Rao Road, Gachibowli, Hyderabad 500 046, India
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11
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Barboza AA, Dantas JA, Jardim GADM, Ferreira MAB, Costa MO, Chiavegatti A. Recent Advances in Palladium-Catalyzed Oxidative Couplings in the Synthesis/Functionalization of Cyclic Scaffolds Using Molecular Oxygen as the Sole Oxidant. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1701-7397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractOver the past years, Pd(II)-catalyzed oxidative couplings have enabled the construction of molecular scaffolds with high structural diversity via C–C, C–N and C–O bond-forming reactions. In contrast to the use of stoichiometric amounts of more common oxidants, such as metal salts (Cu and Ag) and benzoquinone derivatives, the use of molecular oxygen for the direct or indirect regeneration of Pd(II) species presents itself as a more viable alternative in terms of economy and sustainability. In this review, we describe recent advances on the development of Pd-catalyzed oxidative cyclizations/functionalizations, where molecular oxygen plays a pivotal role as the sole stoichiometric oxidant.1 Introduction2 Oxidative C–C and C–Nu Coupling2.1 Intramolecular Oxidative C–Nu Heterocyclization Reactions2.1.1 C–H Activation2.1.2 Wacker/Aza-Wacker-Type Cyclization2.1.3 Tandem Wacker/Aza-Wacker and Cyclization/Cross-Coupling Reactions2.2 Intermolecular Oxidative C–Nu Heterocoupling Reactions2.3 Intramolecular Oxidative (C–C) Carbocyclization Reactions2.4 Intermolecular Oxidative C–C Coupling Reactions2.4.1 Cyclization Reactions2.4.2 Cross-Coupling Reactions2.4.3 Homo-Coupling Reactions3 Aerobic Dehydrogenative Coupling/Functionalization4 Oxidative C–H Functionalization5 Summary
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12
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Tiwari V, Murugan K, Sabiah S, Kandasamy J. An Efficient and Direct Esterification of Uronic Acids Using H2SO4-SiO2 at Room Temperature. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Singh AK, Venkatesh R, Kanaujiya VK, Tiwari V, Kandasamy J. Palladium‐Catalyzed Reaction of Aryl Iodides and Glycal Enones: Application in the Preparation of Dapagliflozin Analogues. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | - Varsha Tiwari
- Indian Institute of Technology BHU Varanasi Chemistry INDIA
| | - Jeyakumar Kandasamy
- Indian Institute of Technology (BHU) Chemistry Varanasi 221005 Varanasi INDIA
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14
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Kumar M, Gurawa A, Kumar N, Kashyap S. Bismuth-Catalyzed Stereoselective 2-Deoxyglycosylation of Disarmed/Armed Glycal Donors. Org Lett 2022; 24:575-580. [PMID: 34995079 DOI: 10.1021/acs.orglett.1c04008] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bi(OTf)3 promoted direct and highly stereoselective glycosylation of "disarmed" and "armed" glycals to synthesize 2-deoxyglycosides has been reported. The tunable and solvent-controlled chemoselective activation of deactivated glycal donors distinguishing the competitive Ferrier and 1,2-addition pathways was discovered to improve substrate scope. The practical versatility of the method has been amply demonstrated with the oligosaccharide syntheses and 2-deoxyglycosylation of high-value natural products and drugs.
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Affiliation(s)
- Manoj Kumar
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, MNIT, Jaipur 302017, India
| | - Aakanksha Gurawa
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, MNIT, Jaipur 302017, India
| | - Nitin Kumar
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, MNIT, Jaipur 302017, India
| | - Sudhir Kashyap
- Carbohydrate Chemistry Research Laboratory (CCRL), Department of Chemistry, MNIT, Jaipur 302017, India
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15
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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: 9] [Impact Index Per Article: 3.0] [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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