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Chen S, Wei F, Cheng X, Luo Y, Meng F, Zhang Y, Huang W, Lv J, Pan H, Wu Q, Zhao G. Regioselective Deacetylation of Peracetylated Deoxy- C-glycopyranosides by Boron Trichloride (BCl 3). J Org Chem 2024; 89:4802-4817. [PMID: 38477972 DOI: 10.1021/acs.joc.4c00026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
A general approach for regioselective deacetylation at sugar 3-OH of peracetylated 6-deoxy-C-glucopyranosides mediated by BCl3 was developed. The approach could be extended to other sugar-derived 6-deoxy-C-glycopyranosides, such as those derived from mannose, galactose, and rhamnose, with deacetylation occurring at varied sugar hydroxyl groups, and further extended to 4-deoxy-C-glucopyranosides with deacetylation occurring at sugar 3-OH. The approach would enable access to synthetically challenging carbohydrate derivatives. A possible mechanism of the regioselectivity was proposed.
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Affiliation(s)
- Shuangyuan Chen
- College of Pharmacy, Guizhou Medical University, Guiyang 561113, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Feifei Wei
- College of Pharmacy, Guizhou Medical University, Guiyang 561113, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Xinqiang Cheng
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Ying Luo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Fancui Meng
- National Key Laboratory of Druggability Evaluation and Systematic Translational Medicine, Tianjin Institute of Pharmaceutical Research, Tianjin 300301, China
| | - Yuanwen Zhang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
- School of Chinese Medicinal Resource, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Wenqian Huang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Lv
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong Pan
- School of Intelligent Medical Technology, Dazhou Vocational and Technical College, Dazhou 635001, China
| | - Qingqing Wu
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
| | - Guilong Zhao
- College of Pharmacy, Guizhou Medical University, Guiyang 561113, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan 528400, China
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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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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Fallek R, Ashush N, Fallek A, Fleischer O, Portnoy M. Controlling the Site Selectivity in Acylations of Amphiphilic Diols: Directing the Reaction toward the Apolar Domain in a Model Diol and the Midecamycin A 1 Macrolide Antibiotic. J Org Chem 2022; 87:9688-9698. [PMID: 35801540 PMCID: PMC9361358 DOI: 10.1021/acs.joc.2c00745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Seeking to improve the site selectivity of acylation of amphiphilic diols, which is induced by imidazole-based nucleophilic catalysts and directs the reaction toward apolar sites, as we recently reported, we examined a new improved catalytic design and an alteration of the acylating agent. The new catalysts performed slightly better selectivity-wise in the model reaction, compared to the previous set, but notably could be prepared in a much more synthetically economic way. The change of the acylating agent from anhydride to acyl chloride, particularly in combination with the new catalysts, accelerated the reaction and increased the selectivity in favor of the apolar site. The new selectivity-inducing techniques were applied to midecamycin, a natural amphiphilic antibiotic possessing a secondary alcohol moiety in each of its two domains, polar as well as apolar. In the case of the anhydride, a basic dimethylamino group, decorating this substrate, overrides the catalyst's selectivity preference and forces selective acylation of the alcohol in the polar domain with a more than 91:1 ratio of the monoacylated products. To counteract the internal base influence, an acid additive was used or the acylating agent was changed to acyl chloride. The latter adjustment leads, in combination with our best catalyst, to the reversal of the ratio between the products to 1:11.
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Affiliation(s)
- Reut Fallek
- School of Chemistry, Raymond and Beverly
Sackler Faculty of Exact Sciences, Tel Aviv
University, Tel Aviv 6997801, Israel
| | - Natali Ashush
- School of Chemistry, Raymond and Beverly
Sackler Faculty of Exact Sciences, Tel Aviv
University, Tel Aviv 6997801, Israel
| | - Amit Fallek
- School of Chemistry, Raymond and Beverly
Sackler Faculty of Exact Sciences, Tel Aviv
University, Tel Aviv 6997801, Israel
| | - Or Fleischer
- School of Chemistry, Raymond and Beverly
Sackler Faculty of Exact Sciences, Tel Aviv
University, Tel Aviv 6997801, Israel
| | - Moshe Portnoy
- School of Chemistry, Raymond and Beverly
Sackler Faculty of Exact Sciences, Tel Aviv
University, Tel Aviv 6997801, Israel
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4
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Bi S, Meng F, Wu D, Zhang F. Synthesis of Vinylene-Linked Covalent Organic Frameworks by Monomer Self-Catalyzed Activation of Knoevenagel Condensation. J Am Chem Soc 2022; 144:3653-3659. [PMID: 35166112 DOI: 10.1021/jacs.1c12902] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Reticular chemistry based on thermodynamically controlled linking modes and numerous organic building blocks has constituted versatile crystalline frameworks in molecular-level precision. However, vinylene-linked covalent organic frameworks (COFs) are still quite far from flexible tailoring in either their structures or topologies, due to the lack of monomers with sufficient activities. Herein, we establish a strategy to synthesize vinylene-linked COFs via Knoevenagel condensation between a tetratopic monomer 2,2',6,6'-tetramethyl-4,4'-bipyridine (TMBP) and linear aromatic dialdehydes in a mixed solvent of benzoic anhydride and benzoic acid. Mechanistic investigation suggests that the condensation was promoted by a pyridine self-catalyzed benzoylation upon the cleavage of benzoic anhydride solvent molecules. The layered structures of the resultant COFs are highly crystallized into orthorhombic lattices with vertically aligned AA stacking modes, delivering high surface areas up to 1560 m2 g-1. The π-extended conjugated skeletons comprising para-bipyridyl units and vinylene linkages endow these COFs with substantial semiconducting properties, releasing visible-light-stimulated catalytic activity in water-splitting hydrogen evolution with a rate as high as 3230 μmol g-1 h-1.
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Affiliation(s)
- Shuai Bi
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fancheng Meng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Dongqing Wu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fan Zhang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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6
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Ueda Y. Site-Selective Molecular Transformation: Acylation of Hydroxy Groups and C-H Amination. Chem Pharm Bull (Tokyo) 2021; 69:931-944. [PMID: 34602573 DOI: 10.1248/cpb.c21-00425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Control of site selectivity is an exciting direction for synthetic organic chemistry owing to the possibility of selective modification of multifunctionalized molecules, ultimately including biomacromolecules. In this review, our recent research related to site selectivity in two types of transformation, namely, the acylation of hydroxy groups and C-H amination, is summarized. Regarding the acylation of hydroxy groups, catalyst-controlled site selectivity enables unconventional retrosynthetic analysis, leading to efficient syntheses of sugar-related natural and unnatural products. Regarding C-H amination, the discovery of unprecedented reaction sites in intermolecular amination mediated by dirhodium nitrenes is described. The findings of this research demonstrate the power of site-selective transformation in the synthesis of a particular class of compounds.
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7
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Nakamura Y, Ochiai T, Makino K, Shimada N. Boronic Acid-Catalyzed Final-Stage Site-Selective Acylation for the Total Syntheses of O-3'-Acyl Bisabolol β-D-Fucopyranoside Natural Products and Their Analogues. Chem Pharm Bull (Tokyo) 2021; 69:281-285. [PMID: 33642477 DOI: 10.1248/cpb.c20-00834] [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] [Indexed: 11/22/2022]
Abstract
The first concise total syntheses of O-3'-senecioyl α-bisabolol β-D-fucopyranoside (4a) and O-3'-isovaleroyl α-bisabolol β-D-fucopyranoside (4b) were achieved through final-stage site-selective acylation via the activation of cis-vicinal diols by imidazole-containing boronic acid catalysts as a key step. This synthetic method was also effective for the syntheses of unnatural analogues with modified acyl side chains or carbohydrate moiety.
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Affiliation(s)
- Yuki Nakamura
- Laboratory of Organic Chemistry for Drug Development and Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University
| | - Takayuki Ochiai
- Laboratory of Organic Chemistry for Drug Development and Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University
| | - Kazuishi Makino
- Laboratory of Organic Chemistry for Drug Development and Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University
| | - Naoyuki Shimada
- Laboratory of Organic Chemistry for Drug Development and Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University
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8
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Enantioselective preparation of mechanically planar chiral rotaxanes by kinetic resolution strategy. Nat Commun 2021; 12:404. [PMID: 33452235 PMCID: PMC7811017 DOI: 10.1038/s41467-020-20372-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 11/24/2020] [Indexed: 12/20/2022] Open
Abstract
Asymmetric synthesis of mechanically planar chiral rotaxanes and topologically chiral catenanes has been a long-standing challenge in organic synthesis. Recently, an excellent strategy was developed based on diastereomeric synthesis of rotaxanes and catenanes with mechanical chirality followed by removal of the chiral auxiliary. On the other hand, its enantioselective approach has been quite limited. Here, we report enantioselective preparation of mechanically planar chiral rotaxanes by kinetic resolution of the racemates via remote asymmetric acylation of a hydroxy group in the axis component, which provides an unreacted enantiomer in up to >99.9% ee in 29% yield (the theoretical maximum yield of kinetic resolution of racemate is 50%). While the rotaxane molecules are expected to have conformational complexity, our original catalysts enabled to discriminate the mechanical chirality of the rotaxanes efficiently with the selectivity factors in up to 16. Since the discovery of mechanically planar chiral rotaxanes and topologically chiral catenanes, their asymmetric synthesis has been a long-standing challenge. Here, the authors report enantioselective preparation of mechanically planar chiral rotaxanes with up to 99.9% ee in 29% yield.
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10
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Ueda Y, Kawabata T. Catalyst-Controlled Site-Selective Acylation and its Application to Unconventional Total Synthesis of Natural Glycosides. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.1138] [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]
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11
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Song G, Jeong KS. Aromatic Helical Foldamers as Nucleophilic Catalysts for the Regioselective Acetylation of Octyl β-d-Glucopyranoside. Chempluschem 2020; 85:2475-2481. [PMID: 33206472 DOI: 10.1002/cplu.202000685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/03/2020] [Indexed: 12/31/2022]
Abstract
Two indolocarbazole-naphthyridine foldamers 2 and 3 that fold into helical conformations were prepared. The 4-(N,N-dimethylamino)pyridine (DMAP) moiety was introduced at one end of the foldamer strands to develop foldamer-based catalysts for the site-selective acylation of polyols. These foldamers adopt helical conformations containing internal cavities capable of binding octyl β-d-glucopyranoside. The association constants were determined to be 1.9 (±0.1)×105 M-1 for 2 and 2.1 (±0.1)×105 M-1 for 3 in CH2 Cl2 at 25 °C. In the presence of DMAP, 2 or 3 as the catalysts, octyl β-d-glucopyranoside was subjected to acetylation under identical reaction conditions. The DMAP-catalysed reaction afforded the random distribution of the monoacetylates (6-OAc : 4-OAc : 3-OAc : 2-OAc=33 : 24 : 41 : 2). In contrast, foldamers 2 and 3 led to the predominant formation of 6-OAc. The relative distributions were estimated to be 6-OAc : 4-OAc : 3-OAc=88 : 4 : 6 : ∼0 with 2 and 6-OAc : 4-OAc : 3-OAc : 2-OAc=90 : 3 : 6 : 1 with 3.
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Affiliation(s)
- Geunmoo Song
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
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12
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Gujjarappa R, Vodnala N, Malakar CC. Recent Advances in Pyridine‐Based Organocatalysis and its Application towards Valuable Chemical Transformations. ChemistrySelect 2020. [DOI: 10.1002/slct.202002765] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Raghuram Gujjarappa
- Department of ChemistryNational Institute of Technology Manipur Langol, Imphal 795004, Manipur India
| | - Nagaraju Vodnala
- Department of ChemistryNational Institute of Technology Manipur Langol, Imphal 795004, Manipur India
| | - C. C. Malakar
- Department of ChemistryNational Institute of Technology Manipur Langol, Imphal 795004, Manipur India
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13
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Shibayama H, Ueda Y, Kawabata T. Total Synthesis of Cercidinin A via a Sequential Site-selective Acylation Strategy. CHEM LETT 2020. [DOI: 10.1246/cl.190872] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiromitsu Shibayama
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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14
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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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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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Ren B, Zhang M, Xu S, Gan L, Zhang L, Tang L. DBN-Catalyzed Regioselective Acylation of Carbohydrates and Diols in Ethyl Acetate. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bo Ren
- College of Chemistry & Chemical Engineering; Xinyang Normal University; Nanhu Road 237, Xinyang, Henan 464000 P. R. China
| | - Mengyao Zhang
- College of Chemistry & Chemical Engineering; Xinyang Normal University; Nanhu Road 237, Xinyang, Henan 464000 P. R. China
| | - Shijie Xu
- College of Chemistry & Chemical Engineering; Xinyang Normal University; Nanhu Road 237, Xinyang, Henan 464000 P. R. China
| | - Lu Gan
- College of Chemistry & Chemical Engineering; Xinyang Normal University; Nanhu Road 237, Xinyang, Henan 464000 P. R. China
| | - Li Zhang
- College of Chemistry & Chemical Engineering; Xinyang Normal University; Nanhu Road 237, Xinyang, Henan 464000 P. R. China
| | - Lin Tang
- College of Chemistry & Chemical Engineering; Xinyang Normal University; Nanhu Road 237, Xinyang, Henan 464000 P. R. China
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17
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Blaszczyk SA, Xiao G, Wen P, Hao H, Wu J, Wang B, Carattino F, Li Z, Glazier DA, McCarty BJ, Liu P, Tang W. S
‐Adamantyl Group Directed Site‐Selective Acylation: Applications in Streamlined Assembly of Oligosaccharides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Stephanie A. Blaszczyk
- School of PharmacyUniversity of Wisconsin-Madison 777 Highland Avenue Madison WI 53705 USA
- Department of ChemistryUniversity of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
| | - Guozhi Xiao
- School of PharmacyUniversity of Wisconsin-Madison 777 Highland Avenue Madison WI 53705 USA
| | - Peng Wen
- School of PharmacyUniversity of Wisconsin-Madison 777 Highland Avenue Madison WI 53705 USA
| | - Hua Hao
- Department of ChemistryUniversity of Pittsburgh 219 Parkman Avenue Pittsburgh PA 15260 USA
| | - Jessica Wu
- School of PharmacyUniversity of Wisconsin-Madison 777 Highland Avenue Madison WI 53705 USA
| | - Bo Wang
- School of PharmacyUniversity of Wisconsin-Madison 777 Highland Avenue Madison WI 53705 USA
| | - Francisco Carattino
- Department of ChemistryUniversity of Pittsburgh 219 Parkman Avenue Pittsburgh PA 15260 USA
| | - Ziyuan Li
- School of PharmacyUniversity of Wisconsin-Madison 777 Highland Avenue Madison WI 53705 USA
| | - Daniel A. Glazier
- Department of ChemistryUniversity of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
| | - Bethany J. McCarty
- Department of ChemistryUniversity of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
| | - Peng Liu
- Department of ChemistryUniversity of Pittsburgh 219 Parkman Avenue Pittsburgh PA 15260 USA
| | - Weiping Tang
- School of PharmacyUniversity of Wisconsin-Madison 777 Highland Avenue Madison WI 53705 USA
- Department of ChemistryUniversity of Wisconsin-Madison 1101 University Avenue Madison WI 53706 USA
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18
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Blaszczyk SA, Xiao G, Wen P, Hao H, Wu J, Wang B, Carattino F, Li Z, Glazier DA, McCarty BJ, Liu P, Tang W. S-Adamantyl Group Directed Site-Selective Acylation: Applications in Streamlined Assembly of Oligosaccharides. Angew Chem Int Ed Engl 2019; 58:9542-9546. [PMID: 31066162 PMCID: PMC6663581 DOI: 10.1002/anie.201903587] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 05/03/2019] [Indexed: 12/15/2022]
Abstract
The site-selective functionalization of carbohydrates is an active area of research. Reported here is the surprising observation that the sterically encumbered adamantyl group directed site-selective acylation at the C2 position of S-glycosides through dispersion interactions between the adamantyl C-H bonds and the π system of the cationic acylated catalyst, which may have broad implications in many other chemical reactions. Because of their stability, chemical orthogonality, and ease of activation for glycosylation, the site-selective acylation of S-glycosides streamlines oligosaccharide synthesis and will have wide applications in complex carbohydrate synthesis.
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Affiliation(s)
- Stephanie A Blaszczyk
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Guozhi Xiao
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
| | - Peng Wen
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
| | - Hua Hao
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Jessica Wu
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
| | - Bo Wang
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
| | - Francisco Carattino
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Ziyuan Li
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
| | - Daniel A Glazier
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Bethany J McCarty
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
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19
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Yanagi M, Ueda Y, Ninomiya R, Imayoshi A, Furuta T, Mishiro K, Kawabata T. Synthesis of 4-Deoxy Pyranosides via Catalyst-Controlled Site-Selective Toluoylation of Abundant Sugars. Org Lett 2019; 21:5006-5009. [DOI: 10.1021/acs.orglett.9b01549] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Masanori Yanagi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Ryo Ninomiya
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Ayumi Imayoshi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takumi Furuta
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Kenji Mishiro
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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20
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Shimada N, Nakamura Y, Ochiai T, Makino K. Catalytic Activation of Cis-Vicinal Diols by Boronic Acids: Site-Selective Acylation of Carbohydrates. Org Lett 2019; 21:3789-3794. [DOI: 10.1021/acs.orglett.9b01231] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Naoyuki Shimada
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Yuki Nakamura
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Takayuki Ochiai
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
| | - Kazuishi Makino
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University, Tokyo 108-8641, Japan
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21
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Kawabata T. Potential in Acylation. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.268] [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]
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22
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Li C, Huang L, Wu R, Xu D. Bridged Alkyl Ionic Liquid‐Catalyzed Tandem Reaction for Synthesis of Spiro[4H‐pyran‐3,3′‐oxindoles] in Aqueous Ethanol Solution. ChemistrySelect 2019. [DOI: 10.1002/slct.201803905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Cheng‐Bin Li
- National Engineering Research Center of Pesticide (Tianjin)State Key Laboratory and Institute of Elemento-Organic ChemistryNankai University Tianjin 300071 China
| | - Lu‐Shan Huang
- National Engineering Research Center of Pesticide (Tianjin)State Key Laboratory and Institute of Elemento-Organic ChemistryNankai University Tianjin 300071 China
| | - Run‐Shi Wu
- National Engineering Research Center of Pesticide (Tianjin)State Key Laboratory and Institute of Elemento-Organic ChemistryNankai University Tianjin 300071 China
| | - Da‐Zhen Xu
- National Engineering Research Center of Pesticide (Tianjin)State Key Laboratory and Institute of Elemento-Organic ChemistryNankai University Tianjin 300071 China
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23
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Ligand-controlled, transition-metal catalyzed site-selective modification of glycosides. Carbohydr Res 2019; 474:16-33. [DOI: 10.1016/j.carres.2019.01.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/21/2018] [Accepted: 01/10/2019] [Indexed: 12/13/2022]
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24
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Bradshaw GA, Colgan AC, Allen NP, Pongener I, Boland MB, Ortin Y, McGarrigle EM. Stereoselective organocatalyzed glycosylations - thiouracil, thioureas and monothiophthalimide act as Brønsted acid catalysts at low loadings. Chem Sci 2019; 10:508-514. [PMID: 30713648 PMCID: PMC6334493 DOI: 10.1039/c8sc02788a] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 10/15/2018] [Indexed: 01/21/2023] Open
Abstract
Thiouracil catalyzes stereoselective glycosylations with galactals in loadings as low as 0.1 mol%. It is proposed that in these glycosylations thiouracil, monothiophthalimide, and the previously reported catalyst, Schreiner's thiourea, do not operate via a double H-bonding mechanism but rather by Brønsted acid/base catalysis. In addition to the synthesis of 2-deoxyglycosides and glycoconjugates, we report the first organocatalytic synthesis of 1,1'-linked trehalose-type sugars.
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Affiliation(s)
- G A Bradshaw
- Centre for Synthesis & Chemical Biology , UCD School of Chemistry , University College Dublin , Belfield , Dublin 4 , Ireland .
| | - A C Colgan
- Centre for Synthesis & Chemical Biology , UCD School of Chemistry , University College Dublin , Belfield , Dublin 4 , Ireland .
| | - N P Allen
- Centre for Synthesis & Chemical Biology , UCD School of Chemistry , University College Dublin , Belfield , Dublin 4 , Ireland .
| | - I Pongener
- Centre for Synthesis & Chemical Biology , UCD School of Chemistry , University College Dublin , Belfield , Dublin 4 , Ireland .
| | - M B Boland
- Centre for Synthesis & Chemical Biology , UCD School of Chemistry , University College Dublin , Belfield , Dublin 4 , Ireland .
| | - Y Ortin
- Centre for Synthesis & Chemical Biology , UCD School of Chemistry , University College Dublin , Belfield , Dublin 4 , Ireland .
| | - E M McGarrigle
- Centre for Synthesis & Chemical Biology , UCD School of Chemistry , University College Dublin , Belfield , Dublin 4 , Ireland .
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25
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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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26
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Recent advances in site-selective functionalization of carbohydrates mediated by organocatalysts. Carbohydr Res 2018; 471:64-77. [PMID: 30508658 DOI: 10.1016/j.carres.2018.11.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/21/2018] [Accepted: 11/22/2018] [Indexed: 02/06/2023]
Abstract
As one of the four fundamental building blocks of life, carbohydrates assume varied and expansive roles in biological contexts. More in-depth understanding of carbohydrates and their interactions, however, is often restricted by our inability to synthesize and subsequently functionalize them in a site-selective manner. This review will summarize recent advances in the site-selective functionalization of carbohydrates using organocatalysts, including achiral catalysts, chiral nucleophilic bases, chiral N-heterocyclic carbenes, and chiral phosphoric acids, with an emphasis on the catalytic nature in each case. As in many endeavors, taking an alternative approach can often lead to success, and selected examples of these achievements will be highlighted as well.
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27
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Nishikawa Y, Takemoto K, Matsuda K, Tanaka R, Arashima A, Ito K, Kamezawa Y, Hori Y, Hara O. Metal Template Assisted Proximal Arrangement of a Nucleophile and an Electrophile: Site-Selective Acylation of α-Hydroxyamides in Polyols. Org Lett 2018; 20:3367-3371. [PMID: 29790765 DOI: 10.1021/acs.orglett.8b01288] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Site-selective acylation of α-hydroxyl groups in amides has been achieved in the presence of other primary hydroxyl groups with intrinsic high reactivity. In this methodology, a relatively stable pyridine aldoxime ester was exploited as an acyl donor to suppress undesired acylation. The catalytic activation of a pyridine aldoxime ester with a Lewis acid produced a cationic complex, which preferentially attracted the Lewis basic α-hydroxyamide via a template effect, to thus facilitate o-acylation.
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Affiliation(s)
- Yasuhiro Nishikawa
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Kohei Takemoto
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Kana Matsuda
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Risa Tanaka
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Akira Arashima
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Kanako Ito
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Yuki Kamezawa
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Yuna Hori
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
| | - Osamu Hara
- Faculty of Pharmacy , Meijo University , 150 Yagotoyama, Tempaku-ku , Nagoya , Aichi 468-8503 , Japan
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28
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Recent topics in enantioselective acyl transfer reactions with dialkylaminopyridine-based nucleophilic catalysts. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Shang W, Mou ZD, Tang H, Zhang X, Liu J, Fu Z, Niu D. Site-Selective O-Arylation of Glycosides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Weidong Shang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Ze-Dong Mou
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Hua Tang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Zhengyan Fu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
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30
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Shang W, Mou ZD, Tang H, Zhang X, Liu J, Fu Z, Niu D. Site-Selective O-Arylation of Glycosides. Angew Chem Int Ed Engl 2017; 57:314-318. [PMID: 29125221 DOI: 10.1002/anie.201710310] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Indexed: 02/05/2023]
Affiliation(s)
- Weidong Shang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Ze-Dong Mou
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Hua Tang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Zhengyan Fu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
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