1
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Dey K, Jayaraman N. Trivalent dialkylaminopyridine-catalyzed site-selective mono- O-acylation of partially-protected pyranosides. Org Biomol Chem 2024; 22:5134-5149. [PMID: 38847370 DOI: 10.1039/d4ob00599f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
This work demonstrates trivalent tris-(3-N-methyl-N-pyridyl propyl)amine (1) catalyzing the site-selective mono-O-acylation of glycopyranosides. Different acid anhydrides were used for the acylation of monosaccharides, mediated by catalyst 1, at a loading of 1.5 mol%; the extent of site-selectivity and the yields of mono-O-acylation products were assessed. The reactions were performed between 2 and 10 h, depending on the nature of the acid anhydride, where the bulkier pivalic anhydride required a longer duration for acylation. The glycopyranosides are maintained as diols and triols, and from a set of experiments, the site-selectivity of acylations was observed to follow the intrinsic reactivities and stereochemistry of hydroxy functionalities. The trivalent catalyst 1 mediates the reactions with excellent site-selectivities for mono-O-acylation product formation in the studied glycopyranosides, in comparison to the monovalent N,N-dimethylamino pyridine (DMAP) catalyst. This study illustrates the benefits of the multivalency of catalytic moieties in catalysis.
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Affiliation(s)
- Kalyan Dey
- Indian Institute of Science, Bangalore 560012, India.
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2
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Zhou Y, Liao KS, Chen TY, Hsieh YSY, Wong CH. Effective Organotin-Mediated Regioselective Functionalization of Unprotected Carbohydrates. J Org Chem 2023. [PMID: 37167441 DOI: 10.1021/acs.joc.3c00397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Regioselective functionalization of unprotected carbohydrates at a secondary OH group in the presence of primary OH groups based on the commonly used organotin-mediated reaction has been improved. We found that the preactivation of the dibutylstannylene acetal intermediate with tetrabutylammonium bromide in toluene is a key to the improved condition for the efficient, high-yielding, and regioselective tosylation, benzoylation, or benzylation of unprotected carbohydrates. The counteranion of tetrabutylammonium ion with a weak coordination ability plays a crucial role in the improved regioselective reactions. A convenient access to the intermediates of synthetic value is also demonstrated in the organotin-mediated regioselective tosylation of unprotected carbohydrates, followed by the nucleophilic inversion reaction to give sulfur-containing and azide-modified carbohydrates.
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Affiliation(s)
- Yixuan Zhou
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
| | - Kuo-Shiang Liao
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
| | - Tzu-Yin Chen
- School of Pharmacy, College of Pharmacy, Taipei Medical University, No. 250 Wu-Hsing Street, Taipei City 110, Taiwan
| | - Yves S Y Hsieh
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
- School of Pharmacy, College of Pharmacy, Taipei Medical University, No. 250 Wu-Hsing Street, Taipei City 110, Taiwan
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), AlbaNova University Center, SE-106 91 Stockholm, Sweden
| | - Chi-Huey Wong
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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3
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Yamatsugu K, Kanai M. Catalytic Approaches to Chemo- and Site-Selective Transformation of Carbohydrates. Chem Rev 2023; 123:6793-6838. [PMID: 37126370 DOI: 10.1021/acs.chemrev.2c00892] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Carbohydrates are a fundamental unit playing pivotal roles in all the biological processes. It is thus essential to develop methods for synthesizing, functionalizing, and manipulating carbohydrates for further understanding of their functions and the creation of sugar-based functional materials. It is, however, not trivial to develop such methods, since carbohydrates are densely decorated with polar and similarly reactive hydroxy groups in a stereodefined manner. New approaches to chemo- and site-selective transformations of carbohydrates are, therefore, of great significance for revolutionizing sugar chemistry to enable easier access to sugars of interest. This review begins with a brief overview of the innate reactivity of hydroxy groups of carbohydrates. It is followed by discussions about catalytic approaches to enhance, override, or be orthogonal to the innate reactivity for the transformation of carbohydrates. This review avoids making a list of chemo- and site-selective reactions, but rather focuses on summarizing the concept behind each reported transformation. The literature references were sorted into sections based on the underlying ideas of the catalytic approaches, which we hope will help readers have a better sense of the current state of chemistry and develop innovative ideas for the field.
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Affiliation(s)
- Kenzo Yamatsugu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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4
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Gorelik DJ, Turner JA, Taylor MS. Catalyst-Controlled, Site-Selective Sulfamoylation of Carbohydrate Derivatives. Org Lett 2022; 24:5249-5253. [PMID: 35729742 DOI: 10.1021/acs.orglett.2c01590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Methods for site-selective sulfamoylation of secondary hydroxyl groups in pyranosides are described. Using a boronic acid catalyst, selective installation of a Boc-protected sulfamoyl group at the equatorial position of cis-diols in manno- and galacto-configured substrates has been achieved. Activation of trans-diol groups in gluco- and galacto-configured substrates is also possible by employing an organotin catalyst.
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Affiliation(s)
- Daniel J Gorelik
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Julia A Turner
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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5
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Song J, Zheng WH. A highly enantioselective approach towards optically active γ-amino alcohols by tin-catalyzed kinetic resolution of 1,3-amino alcohols. Chem Commun (Camb) 2022; 58:7392-7395. [PMID: 35686938 DOI: 10.1039/d2cc01963a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective kinetic resolution of racemic 1,3-amino alcohols via O-Acylation was achieved using a chiral organotin as the catalyst. Alkyl- and aryl-substituted 1,3-amino alcohols were resolved with excellent efficiencies to afford the recovered 1,3-amino alcohols and acylative products with high enantioselectivities, with s factors up to >600. Notably, the chiral organotin catalyst was more selective for anti-1,3-amino alcohols than for syn-isomers. A Gram-scale reaction with loading using 2 mol% catalysts demonstrated the utility of this protocol.
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Affiliation(s)
- Jian Song
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China.
| | - Wen-Hua Zheng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China.
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6
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Kong Y, Yang B, Zhang J, Dong C. Research progress on hydroxyl protection of iridoid glycosides. Aust J Chem 2022. [DOI: 10.1071/ch21260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Iridoids, an important active ingredient, are widely distributed in varieties of Chinese herbal medicines and have varieties of pharmacological activities, such as anti-tumor, hypoglycemic, anti-inflammatory and so on, most of which exist in the form of glycosides in nature. However, its clinical application is limited by poor lipid solubility, low bioavailability and short half-life. It is necessary to optimize the structure of iridoids. It is hard to modify the hydroxyl groups at specific sites because iridoid glycosides are polyhydroxy compounds and very complex. In this paper, the words of ‘Iridoid glycosides’ and ‘Hydroxyl protection’ were used as the keywords, more than 200 articles from 1965 to 2021 were obtained from databases, such as CNKI, PubMed, Scifinder and so on. Finally, 60 articles were selected to summarize the hydroxyl protection of iridoid glycosides, which will provide a theoretical basis for their structural modification and stimulate their application potential in the field of drug research and development.
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7
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Song J, Zheng WH. Kinetic Resolution of Tertiary Alcohols by Chiral Organotin-Catalyzed O-Acylation. Org Lett 2022; 24:2349-2353. [PMID: 35315279 DOI: 10.1021/acs.orglett.2c00537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A novel highly enantioselective method for the kinetic resolution of racemic tertiary alcohols has been achieved through chiral organotin-catalyzed intermolecular acylation of the hydroxyl group. This process has demonstrated a broad substrate scope (both alkyl- and aryl-substituted tertiary alcohols) with high enantioselectivity under mild reaction conditions, affording the corresponding products and the recovered tertiary alcohols with high enantioselectivities, with s factors up to >200.
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Affiliation(s)
- Jian Song
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China
| | - Wen-Hua Zheng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, Jiangsu, China
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8
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Li Z, Unione L, Liu L, Lang Y, de Vries RP, de Groot RJ, Boons GJ. Synthetic O-Acetylated Sialosides and their Acetamido-deoxy Analogues as Probes for Coronaviral Hemagglutinin-esterase Recognition. J Am Chem Soc 2022; 144:424-435. [PMID: 34967208 DOI: 10.1021/jacs.1c10329] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
O-Acetylation is a common modification of sialic acids that can occur at carbons 4-, 7-, 8-, and/or 9. Acetylated sialosides are employed as receptors by several betacoronaviruses and toroviruses, and by influenza C and D viruses. The molecular basis by which these viruses recognize specific O-acetylated sialosides is poorly understood, and it is unknown how viruses have evolved to recognize specific O-acetylated sialosides expressed by their host. Here, we describe a chemoenzymatic approach that can readily provide sialoglycan analogues in which acetyl esters at C4 and/or C7 are replaced by stabilizing acetamide moieties. The analogues and their natural counterparts were used to examine the ligand requirements of the lectin domain of coronaviral hemagglutinin-esterases (HEs). It revealed that HEs from viruses targeting different host species exhibit different requirements for O-acetylation. It also showed that ester-to-amide perturbation results in decreased or loss of binding. STD NMR and molecular modeling of the complexes of the HE of BCoV with the acetamido analogues and natural counterparts revealed that binding is governed by the complementarity between the acetyl moieties of the sialosides and the hydrophobic patches of the lectin. The precise spatial arrangement of these elements is important, and an ester-to-amide perturbation results in substantial loss of binding. Molecular Dynamics simulations with HEs from coronaviruses infecting other species indicate that these viruses have adapted their HE specificity by the incorporation of hydrophobic or hydrophilic elements to modulate acetyl ester recognition.
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Affiliation(s)
- Zeshi Li
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
| | - Luca Unione
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
| | - Lin Liu
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
| | - Yifei Lang
- Virology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584 CL, The Netherlands
| | - Robert P de Vries
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
| | - Raoul J de Groot
- Virology Division, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584 CL, The Netherlands
| | - Geert-Jan Boons
- Department of Chemical Biology and Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht 3584 CG, The Netherlands
- Complex Carbohydrate Research Center, University of Georgia, 315 Riverbend Road, Athens, Georgia 30602, United States
- Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht 3584, The Netherlands
- Chemistry Department, University of Georgia, Athens, Georgia 30602, United States
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9
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Catalytic, Regioselective Sulfonylation of Carbohydrates with Dibutyltin Oxide under Solvent-Free Conditions. Catalysts 2021. [DOI: 10.3390/catal11020202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A simple approach was developed for the solvent-free regioselective functionalization of carbohydrate polyols with 4-toluesulfonyl (tosyl) group, allowing the easy and quick activation of a saccharide site with a tosylate leaving group. The method is based on the use of catalytic dibutyltin oxide and tetrabuylammonium bromide (TBAB), and a moderate excess of N,N-diisopropylethyl amine (DIPEA) and tosyl chloride (TsCl), leading to the selective functionalization at 75 °C of a secondary equatorial hydroxy function flanked by an axial one in a pyranoside. The procedure is endowed with several advantages, such as the use of cheap reagents, experimental simplicity, and the need for reduced reaction times in comparison with other known approaches.
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10
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Giesen JA, Grayson SM. Selective monobenzylation of 2,2-bis(hydroxymethyl)propionic acid (bis-MPA) to yield an AB linear monomer and analogous linear oligomers. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Lv J, Zhu JJ, Liu Y, Dong H. Regioselective Sulfonylation/Acylation of Carbohydrates Catalyzed by FeCl 3 Combined with Benzoyltrifluoroacetone and Its Mechanism Study. J Org Chem 2020; 85:3307-3319. [PMID: 31984732 DOI: 10.1021/acs.joc.9b03128] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A catalytic amount of FeCl3 combined with benzoyl trifluoroacetone (Hbtfa) (FeCl3/Hbtfa = 1/2) was used to catalyze sulfonylation/acylation of diols and polyols using diisopropylethylamine (DIPEA) or potassium carbonate (K2CO3) as a base. The catalytic system exhibited high catalytic activity, leading to excellent isolated yields of sulfonylation/acylation products with high regioselectivities. Mechanism studies indicated that FeCl3 initially formed [Fe(btfa)3] (btfa = benzoyl trifluoroacetonate) with twice the amount of Hbtfa under basic conditions in the solvent acetonitrile at room temperature. Then, Fe(btfa)3 and two hydroxyl groups of the substrates formed a five- or six-membered ring intermediate in the presence of the base. The subsequent reaction between the cyclic intermediate and a sulfonylation reagent led to the selective sulfonylation of the substrate. All key intermediates were captured in the high-resolution mass spectrometry assay, therefore demonstrating this mechanism for the first time.
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Affiliation(s)
- Jian Lv
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Jia-Jia Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Yu Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Hai Dong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China.,Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, PR China
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12
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Ryzhov IM, Bovin NV. Synthesis of glycans functioning as antigens of the ABO blood group system. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Yang H, Zheng W. Chiral‐Organotin‐Catalyzed Kinetic Resolution of Vicinal Amino Alcohols. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909700] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hui Yang
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Wen‐Hua Zheng
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
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14
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Yang H, Zheng W. Chiral‐Organotin‐Catalyzed Kinetic Resolution of Vicinal Amino Alcohols. Angew Chem Int Ed Engl 2019; 58:16177-16180. [PMID: 31490608 DOI: 10.1002/anie.201909700] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Hui Yang
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Wen‐Hua Zheng
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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15
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Kuwano S, Hosaka Y, Arai T. Chiral Benzazaborole‐Catalyzed Regioselective Sulfonylation of Unprotected Carbohydrate Derivatives. Chemistry 2019; 25:12920-12923. [DOI: 10.1002/chem.201903443] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Satoru Kuwano
- Soft Molecular Activation Research Center (SMARC)Chiba Iodine Resource Innovation Center (CIRIC)Molecular Chirality Research Center (MCRC)Synthetic Organic ChemistryDepartment of ChemistryGraduate School of ScienceChiba University 1–33 Yayoi, Inage Chiba 263-8522 Japan
| | - Yusei Hosaka
- Soft Molecular Activation Research Center (SMARC)Chiba Iodine Resource Innovation Center (CIRIC)Molecular Chirality Research Center (MCRC)Synthetic Organic ChemistryDepartment of ChemistryGraduate School of ScienceChiba University 1–33 Yayoi, Inage Chiba 263-8522 Japan
| | - Takayoshi Arai
- Soft Molecular Activation Research Center (SMARC)Chiba Iodine Resource Innovation Center (CIRIC)Molecular Chirality Research Center (MCRC)Synthetic Organic ChemistryDepartment of ChemistryGraduate School of ScienceChiba University 1–33 Yayoi, Inage Chiba 263-8522 Japan
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16
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Dimakos V, Taylor MS. Site-Selective Functionalization of Hydroxyl Groups in Carbohydrate Derivatives. Chem Rev 2018; 118:11457-11517. [DOI: 10.1021/acs.chemrev.8b00442] [Citation(s) in RCA: 148] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Victoria Dimakos
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Mark S. Taylor
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
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17
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Abstract
Deoxy-sugars often play a critical role in modulating the potency of many bioactive natural products. Accordingly, there has been sustained interest in methods for their synthesis over the past several decades. The focus of much of this work has been on developing new glycosylation reactions that permit the mild and selective construction of deoxyglycosides. This Review covers classical approaches to deoxyglycoside synthesis, as well as more recently developed chemistry that aims to control the selectivity of the reaction through rational design of the promoter. Where relevant, the application of this chemistry to natural product synthesis will also be described.
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Affiliation(s)
- Clay S. Bennett
- Department
of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - M. Carmen Galan
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
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18
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Song W, Zheng N. Chiral catalyst-directed site-selective functionalization of hydroxyl groups in carbohydrates. J Carbohydr Chem 2017. [DOI: 10.1080/07328303.2017.1390575] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Wangze Song
- School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, P.R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P.R. China
| | - Nan Zheng
- Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, P.R. China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P.R. China
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19
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Affiliation(s)
- Ryan Williams
- School of Chemistry; University of Bristol; Cantock's Close BS8 1TS Bristol U.K
| | - M. Carmen Galan
- School of Chemistry; University of Bristol; Cantock's Close BS8 1TS Bristol U.K
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21
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Yamazaki Y, Sezukuri K, Takada J, Obata H, Kimura S, Ohmae M. Synthesis of type 2 Lewis antigens via novel regioselective glycosylation of an orthogonally protected lactosamine diol derivative. Carbohydr Res 2016; 422:34-44. [DOI: 10.1016/j.carres.2016.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 01/12/2016] [Accepted: 01/13/2016] [Indexed: 11/30/2022]
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22
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Muramatsu W. Recent Advances in the Regioselective Functionalization of Carbohydrates Using Non-Enzymatic Catalysts. TRENDS GLYCOSCI GLYC 2016. [DOI: 10.4052/tigg.1502.1j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Muramatsu W. Recent Advances in the Regioselective Functionalization of Carbohydrates Using Non-Enzymatic Catalysts. TRENDS GLYCOSCI GLYC 2016. [DOI: 10.4052/tigg.1502.1e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Peterson K, Weymouth-Wilson A, Nilsson UJ. Aryl Sulfonates in Inversions at Secondary Carbohydrate Hydroxyl Groups: A New and Improved Route Toward 3-Azido-3-deoxy-β-d-galactopyranosides. J Carbohydr Chem 2015. [DOI: 10.1080/07328303.2015.1105248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Alex Weymouth-Wilson
- Dextra Laboratories Ltd., Science & Technology Centre, Earley Gate, Whiteknights Road, Reading, RG6 6BZ, UK
| | - Ulf J. Nilsson
- Centre for Analysis and Synthesis, Lund University, SE 22100, Lund, Sweden
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25
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Lu S, Boyd RJ, Grindley TB. Role of Fluoride in Accelerating the Reactions of Dialkylstannylene Acetals. J Org Chem 2015; 80:2989-3002. [DOI: 10.1021/jo502560q] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Simiao Lu
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - Russell J. Boyd
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
| | - T. Bruce Grindley
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. Box 15000, Halifax, Nova Scotia, Canada B3H 4R2
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26
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Taylor MS. Catalyst-Controlled, Regioselective Reactions of Carbohydrate Derivatives. SITE-SELECTIVE CATALYSIS 2015; 372:125-55. [DOI: 10.1007/128_2015_656] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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27
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Muramatsu W. Catalytic and Regioselective Oxidation of Carbohydrates To Synthesize Keto-Sugars under Mild Conditions. Org Lett 2014; 16:4846-9. [DOI: 10.1021/ol502344h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Wataru Muramatsu
- Graduate School of Biomedical
Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, Nagasaki 852-8521, Japan
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Ren B, Rahm M, Zhang X, Zhou Y, Dong H. Regioselective Acetylation of Diols and Polyols by Acetate Catalysis: Mechanism and Application. J Org Chem 2014; 79:8134-42. [DOI: 10.1021/jo501343x] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Bo Ren
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
| | - Martin Rahm
- Department
of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca 14853, New York, United States
- Department
of Applied Physical Chemistry, KTH-Royal Institute of Technology, Teknikringen 30, 10044 Stockholm, Sweden
| | - Xiaoling Zhang
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
| | - Yixuan Zhou
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
| | - Hai Dong
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
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29
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Xu H, Lu Y, Zhou Y, Ren B, Pei Y, Dong H, Pei Z. Regioselective Benzylation of Diols and Polyols by Catalytic Amounts of an Organotin Reagent. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301152] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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30
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31
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Hara A, Imamura A, Ando H, Ishida H, Kiso M. A new chemical approach to human ABO histo-blood group type 2 antigens. Molecules 2013; 19:414-37. [PMID: 24384923 PMCID: PMC6270767 DOI: 10.3390/molecules19010414] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 12/24/2013] [Accepted: 12/25/2013] [Indexed: 02/08/2023] Open
Abstract
A new chemical approach to synthesizing human ABO histo-blood type 2 antigenic determinants was developed. N-Phthaloyl-protected lactosaminyl thioglycoside derived from lactulose via the Heyns rearrangement was employed to obtain a type 2 core disaccharide. Use of this scheme lowered the overall number of reaction steps. Stereoselective construction of the α-galactosaminide/galactoside found in A- and B-antigens, respectively, was achieved by using a unique di-tert-butylsilylene-directed α-glycosylation method. The proposed synthetic scheme provides an alternative to existing procedures for preparing ABO blood group antigens.
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Affiliation(s)
- Atsushi Hara
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Akihiro Imamura
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Hiromune Ando
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Hideharu Ishida
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
| | - Makoto Kiso
- Department of Applied Bioorganic Chemistry, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu 501-1193, Japan.
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32
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Giordano M, Iadonisi A. Tin-Mediated Regioselective Benzylation and Allylation of Polyols: Applicability of a Catalytic Approach Under Solvent-Free Conditions. J Org Chem 2013; 79:213-22. [DOI: 10.1021/jo402399n] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Maddalena Giordano
- Department
of Chemical Sciences, University of Naples “Federico II”, Via Cintia 4, Naples 80126, Italy
| | - Alfonso Iadonisi
- Department
of Chemical Sciences, University of Naples “Federico II”, Via Cintia 4, Naples 80126, Italy
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33
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Watanabe Y, Kawamoto M, Shintaku H, Tanabe K, Ohta H, Hayashi M. Specific Enhancement of Reactivity and Selectivity in the Substitution Reactions of Polyhydroxy Derivatives by Lithium Chloride. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Zhou Y, Rahm M, Wu B, Zhang X, Ren B, Dong H. H-bonding activation in highly regioselective acetylation of diols. J Org Chem 2013; 78:11618-22. [PMID: 24164588 DOI: 10.1021/jo402036u] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
H-bonding activation in the regioselective acetylation of vicinal and 1,3-diols is presented. Herein, the acetylation of the hydroxyl group with acetic anhydride can be activated by the formation of H-bonds between the hydroxyl group and anions. The reaction exhibits high regioselectivity when a catalytic amount of tetrabutylammonium acetate is employed. Mechanistic studies indicated that acetate anion forms dual H-bonding complexes with the diol, which facilitates the subsequent regioselective monoacetylation.
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Affiliation(s)
- Yixuan Zhou
- School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology , Luoyu Road 1037, Wuhan 430074, P. R. China
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35
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Muramatsu W, Yoshimatsu H. Regio- and Stereochemical Controlled Koenigs-Knorr-Type Monoglycosylation of Secondary Hydroxy Groups in Carbohydrates Utilizing the High Site Recognition Ability of Organotin Catalysts. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300414] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Kimura Y, Ito S, Shimizu Y, Kanai M. Catalytic Anomeric Aminoalkynylation of Unprotected Aldoses. Org Lett 2013; 15:4130-3. [DOI: 10.1021/ol401810b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yasuaki Kimura
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, and ERATO, Japan Science and Technology Agency, Kanai Life Science Catalysis Project, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Soichi Ito
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, and ERATO, Japan Science and Technology Agency, Kanai Life Science Catalysis Project, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yohei Shimizu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, and ERATO, Japan Science and Technology Agency, Kanai Life Science Catalysis Project, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan, and ERATO, Japan Science and Technology Agency, Kanai Life Science Catalysis Project, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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37
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Xia L, Lowary TL. Regioselective polymethylation of α-(1 → 4)-linked mannopyranose oligosaccharides. J Org Chem 2013; 78:2863-80. [PMID: 23485363 DOI: 10.1021/jo4001299] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An approach has been developed of the regioselective methylation of α-(1 → 4)-linked mannopyranose oligosaccharides via a four-step methodology. The key reaction involved n-Bu2SnCl2-mediated activation of cis-diols. By tuning protecting groups on the substrates, multiple cis-diols in the substrates were functionalized in a consistent and regioselective manner. Using optimized substrates and reaction conditions, regioselective methylation of di-, tri-, and tetrasaccharide substrates proceeded in isolated yields per cis-diol of 95, 88 and 79%, respectively. The methodology was also applied to functionalize trans-diols in α-cyclodextrin.
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Affiliation(s)
- Li Xia
- Alberta Glycomics Centre and Department of Chemistry, University of Alberta, Gunning-Lemieux Chemistry Centre, Edmonton, AB T6G 2G2, Canada
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38
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Muramatsu W, Takemoto Y. Selectivity Switch in the Catalytic Functionalization of Nonprotected Carbohydrates: Selective Synthesis in the Presence of Anomeric and Structurally Similar Carbohydrates under Mild Conditions. J Org Chem 2013; 78:2336-45. [DOI: 10.1021/jo3024279] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Wataru Muramatsu
- Graduate School of biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, Nagasaki 852-8521, Japan
| | - Yuki Takemoto
- Graduate School of biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, Nagasaki 852-8521, Japan
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39
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Wu X, Chu J, Liang J, He B. Efficient enzymatic synthesis of mangiferin glycosides in hydrophilic organic solvents. RSC Adv 2013. [DOI: 10.1039/c3ra42648c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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40
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Lee D, Taylor MS. Regioselective silylation of pyranosides using a boronic acid/Lewis base co-catalyst system. Org Biomol Chem 2013; 11:5409-12. [DOI: 10.1039/c3ob40981c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Gingras M, Chabre YM, Roy M, Roy R. How do multivalent glycodendrimers benefit from sulfur chemistry? Chem Soc Rev 2013; 42:4823-41. [DOI: 10.1039/c3cs60090d] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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