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Ding W, Chen X, Sun Z, Luo J, Wang S, Lu Q, Ma J, Zhao C, Chen FE, Xu C. A Radical Activation Strategy for Versatile and Stereoselective N-Glycosylation. Angew Chem Int Ed Engl 2024; 63:e202409004. [PMID: 38837495 DOI: 10.1002/anie.202409004] [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: 05/13/2024] [Revised: 05/31/2024] [Accepted: 06/04/2024] [Indexed: 06/07/2024]
Abstract
Previous N-glycosylation approaches have predominately involved acidic conditions, facing challenges of low stereoselectivity and limited scope. Herein, we introduce a radical activation strategy that enables versatile and stereoselective N-glycosylation using readily accessible glycosyl sulfinate donors under basic conditions and exhibits exceptional tolerance towards various N-aglycones containing alkyl, aryl, heteroaryl and nucleobase functionalities. Preliminary mechanistic studies indicate a pivotal role of iodide, which orchestrates the formation of a glycosyl radical from the glycosyl sulfinate and subsequent generation of the key intermediate, a configurationally well-defined glycosyl iodide, which is subsequently attacked by an N-aglycone in a stereospecific SN2 manner to give the desired N-glycosides. An alternative route involving the coupling of a glycosyl radical and a nitrogen-centered radical is also proposed, affording the exclusive 1,2-trans product. This novel approach promises to broaden the synthetic landscape of N-glycosides, offering a powerful tool for the construction of complex glycosidic structures under mild conditions.
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Affiliation(s)
- Wenyan Ding
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, China
| | - Xinyu Chen
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Zuyao Sun
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Jiaxin Luo
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Shiping Wang
- National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350108, China
| | - Qingqing Lu
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Jialu Ma
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Chongxin Zhao
- Jiangsu Jiyi New Material CO., LTD, Xuzhou, 221700, China
| | - Fen-Er Chen
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Fudan University, Shanghai, 200433, China
| | - Chunfa Xu
- Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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Simonetti SO, Kaufman TS, Larghi EL. Conjugation of Carbohydrates with Quinolines: A Powerful Synthetic Tool. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sebastián O. Simonetti
- Instituto de Química Rosario: Instituto de Quimica Rosario Química Orgánica Suipacha 531 S2002LRK Rosario ARGENTINA
| | - Teodoro S. Kaufman
- Instituto de Química Rosario: Instituto de Quimica Rosario Química Orgánica Suipacha 531 S2002LRK Rosario ARGENTINA
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Seo K, Jang SH, Rhee YH. Sequential Metal Catalysis towards 7‐Oxostaurosporine and Its Non‐Natural Septanose Analogue. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112524] [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)
- Kyeongdeok Seo
- Department of Chemistry Pohang University of Science and Technology Cheongam-Ro 77, Nam-Gu Pohang, Kyeongbuk 37673 Republic of Korea
| | - Seok Hyeon Jang
- Department of Chemistry Pohang University of Science and Technology Cheongam-Ro 77, Nam-Gu Pohang, Kyeongbuk 37673 Republic of Korea
| | - Young Ho Rhee
- Department of Chemistry Pohang University of Science and Technology Cheongam-Ro 77, Nam-Gu Pohang, Kyeongbuk 37673 Republic of Korea
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Seo K, Jang SH, Rhee YH. Sequential Metal Catalysis towards 7-Oxostaurosporine and Its Non-Natural Septanose Analogue. Angew Chem Int Ed Engl 2021; 61:e202112524. [PMID: 34786807 DOI: 10.1002/anie.202112524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Indexed: 11/09/2022]
Abstract
We report sequential metal catalysis towards indolocarbazole glycosides. The signature event is highlighted by i) Pd0 -catalyzed addition of indolocarbazole to alkoxyallene combined with ring-closing-metathesis; ii) Ru-catalyzed chemoselective olefin migration; iii) PdII -catalyzed oxidative cyclization to build the bicyclic core structure of the target compounds. This approach gave access to both natural pyranose- and non-natural septanose glycosides. A short formal synthesis of 7-oxostaurosporine was achieved via this strategy.
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Affiliation(s)
- Kyeongdeok Seo
- Department of Chemistry, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Kyeongbuk, 37673, Republic of Korea
| | - Seok Hyeon Jang
- Department of Chemistry, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Kyeongbuk, 37673, Republic of Korea
| | - Young Ho Rhee
- Department of Chemistry, Pohang University of Science and Technology, Cheongam-Ro 77, Nam-Gu, Pohang, Kyeongbuk, 37673, Republic of Korea
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Jiang Q, Wang P, Yang Z, Tang S, Zhang H. Palladium-catalyzed nitrogen-selective addition reaction of indoles to glycals. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1952602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Qian Jiang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, P. R. China
| | - Panpan Wang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, P. R. China
| | - Zhen Yang
- Department of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, P. R. China
| | - Shouchu Tang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, P. R. China
| | - Hongrui Zhang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, P. R. China
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Dimakos V, Taylor MS. Recent advances in the direct O-arylation of carbohydrates. Org Biomol Chem 2021; 19:514-524. [PMID: 33331387 DOI: 10.1039/d0ob02009e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Methods for the O-arylation of hydroxyl and hemiacetal groups in carbohydrates via C(sp2)-O bond formation are discussed. Such methods provide an alternative disconnection to the traditional approach of nucleophilic substitution between a sugar-derived electrophile and a phenol or phenoxide nucleophile. They have led to new opportunities for stereoselectivity, site-selectivity and chemoselectivity in the preparation of O-aryl glycosides and carbohydrate-derived aryl ethers, compounds that are useful for a broad range of applications in medicinal chemistry, glycobiology and organic synthesis.
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Affiliation(s)
- Victoria Dimakos
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada.
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada.
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Sangwan R, Khanam A, Mandal PK. An Overview on the Chemical
N
‐Functionalization of Sugars and Formation of
N
‐Glycosides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000813] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Rekha Sangwan
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute Sector 10, Jankipuram extn., Sitapur Road 226 031 Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
| | - Ariza Khanam
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute Sector 10, Jankipuram extn., Sitapur Road 226 031 Lucknow India
| | - Pintu Kumar Mandal
- Medicinal and Process Chemistry Division CSIR‐Central Drug Research Institute Sector 10, Jankipuram extn., Sitapur Road 226 031 Lucknow India
- Academy of Scientific and Innovative Research (AcSIR) 201002 Ghaziabad India
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