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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Guo H, Kirchhoff JL, Strohmann C, Grabe B, Loh CCJ. Asymmetric Pd/Organoboron-Catalyzed Site-Selective Carbohydrate Functionalization with Alkoxyallenes Involving Noncovalent Stereocontrol. Angew Chem Int Ed Engl 2024; 63:e202400912. [PMID: 38530140 DOI: 10.1002/anie.202400912] [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: 01/15/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 03/27/2024]
Abstract
Herein, we demonstrate the robustness of a synergistic chiral Pd/organoboron system in tackling a challenging suite of site-, regio-, enantio- and diastereoselectivity issues across a considerable palette of biologically relevant carbohydrate polyols, when prochiral alkoxyallenes were employed as electrophiles. In view of the burgeoning role of noncovalent interactions (NCIs) in stereoselective carbohydrate synthesis, our mechanistic experiments and DFT modeling of the reaction path unexpectedly revealed that NCIs such as hydrogen bonding and CH-π interactions between the resting states of the Pd-π-allyl complex and the borinate saccharide are critically involved in the stereoselectivity control. Our strategy thus illuminates the untapped potential of harnessing NCIs in the context of transition metal catalysis to tackle stereoselectivity challenges in carbohydrate functionalization.
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Affiliation(s)
- Hao Guo
- Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227, Dortmund, Germany
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 4a, 44227, Dortmund, Germany
| | - Jan-Lukas Kirchhoff
- Technische Universität Dortmund, Fakultät für Chemie und Chemische Biologie Anorganische Chemie, Otto-Hahn-Straße 6, 44227, Dortmund, Germany
| | - Carsten Strohmann
- Technische Universität Dortmund, Fakultät für Chemie und Chemische Biologie Anorganische Chemie, Otto-Hahn-Straße 6, 44227, Dortmund, Germany
| | - Bastian Grabe
- NMR Department Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 4a, 44227, Dortmund, Germany
| | - Charles C J Loh
- Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Otto-Hahn-Straße 11, 44227, Dortmund, Germany
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Straße 4a, 44227, Dortmund, Germany
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3
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Kusano S, Yamada Y, Hagihara S. Benzoxaborole Catalyst Embedded with a Lewis Base: A Highly Active and Selective Catalyst for cis-1,2-diol Modification. J Org Chem 2024; 89:6714-6722. [PMID: 38669291 DOI: 10.1021/acs.joc.3c02845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
The regioselective modification of polyols allows rapid access to their derivatives, thereby accelerating the polyol-related biology and drug discovery. We previously reported that benzoxaborole is a potent catalyst for the regioselective modification of polyols containing a cis-1,2-diol structure. In this study, we developed a bifunctional benzoxaborole catalyst embedded with a Lewis base. Benzoxaborole and Lewis base groups were designed to cooperatively activate a substrate (cis-1,2-diol) and reactant (electrophile), respectively, hence lowering the reaction barrier for the cis-1,2-diol moiety. The bifunctional catalyst indeed exhibited a significantly higher catalytic activity and selectivity for cis-1,2-diol modifications rather than a benzoxaborole catalyst without a Lewis base group. Mechanistic analyses, using both experimental and theoretical methods, supported the design of our catalyst. The bifunctional catalyst reported herein would be a new tool for the straightforward synthesis of polyol derivatives.
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Affiliation(s)
- Shuhei Kusano
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yuji Yamada
- Department of Chemistry, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Fukuoka 814-0180, Japan
| | - Shinya Hagihara
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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4
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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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5
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Jdanova S, Taylor MS. Mechanistic Study of the Copper(II)-Mediated Site-Selective O-Arylation of Glycosides with Arylboronic Acids. J Org Chem 2023; 88:3487-3498. [PMID: 36888595 DOI: 10.1021/acs.joc.2c02693] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Glycosides having multiple free OH groups have been shown to undergo site-selective O-arylations in the presence of arylboronic acids and copper(II) acetate. Herein, a mechanistic analysis of these Chan-Evans-Lam-type couplings is presented based on reaction kinetics, mass spectrometric analysis of reaction mixtures, and substituent effect studies. The results establish that the formation of a substrate-derived boronic ester accelerates the rate-determining transmetalation step. Intramolecular transfer of the aryl group from the boronic ester is ruled out in favor of a pathway in which the key pre-transmetalation assembly is generated from a boronic ester, a copper complex, and a second equivalent of arylboronic acid.
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Affiliation(s)
- Sofia Jdanova
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6 Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6 Canada
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6
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Rao VUB, Wang C, Demarque DP, Grassin C, Otte F, Merten C, Strohmann C, Loh CCJ. A synergistic Rh(I)/organoboron-catalysed site-selective carbohydrate functionalization that involves multiple stereocontrol. Nat Chem 2023; 15:424-435. [PMID: 36585443 PMCID: PMC9986112 DOI: 10.1038/s41557-022-01110-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/16/2022] [Indexed: 12/31/2022]
Abstract
Site-selective functionalization is a core synthetic strategy that has broad implications in organic synthesis. Particularly, exploiting chiral catalysis to control site selectivity in complex carbohydrate functionalizations has emerged as a leading method to unravel unprecedented routes into biologically relevant glycosides. However, robust catalytic systems available to overcome multiple facets of stereoselectivity challenges to this end still remain scarce. Here we report a synergistic chiral Rh(I)- and organoboron-catalysed protocol, which enables access into synthetically challenging but biologically relevant arylnaphthalene glycosides. Our method depicts the employment of chiral Rh(I) catalysis in site-selective carbohydrate functionalization and showcases the utility of boronic acid as a compatible co-catalyst. Crucial to the success of our method is the judicious choice of a suitable organoboron catalyst. We also determine that exquisite multiple aspects of stereocontrol, including enantio-, diastereo-, regio- and anomeric control and dynamic kinetic resolution, are concomitantly operative.
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Affiliation(s)
- V U Bhaskara Rao
- Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Dortmund, Germany
- Fakültät für Chemie und Chemische Biologie, Technische Universität Dortmund, Dortmund, Germany
| | - Caiming Wang
- Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Dortmund, Germany
- Fakültät für Chemie und Chemische Biologie, Technische Universität Dortmund, Dortmund, Germany
| | | | | | - Felix Otte
- Department of Inorganic Chemistry, Technische Universität Dortmund, Dortmund, Germany
| | | | - Carsten Strohmann
- Department of Inorganic Chemistry, Technische Universität Dortmund, Dortmund, Germany
| | - Charles C J Loh
- Abteilung Chemische Biologie, Max Planck Institut für Molekulare Physiologie, Dortmund, Germany.
- Fakültät für Chemie und Chemische Biologie, Technische Universität Dortmund, Dortmund, Germany.
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7
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Liang XY, Liu AL, Shawn Fan HJ, Wang L, Xu ZN, Ding XG, Huang BS. TsOH-catalyzed acyl migration reaction of the Bz-group: innovative assembly of various building blocks for the synthesis of saccharides. Org Biomol Chem 2023; 21:1537-1548. [PMID: 36723045 DOI: 10.1039/d2ob02052a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We developed an efficient method to achieve the regioselective acyl migration of benzoyl ester. In all the cases, the reactions required only the commercially available organic acid catalyst TsOH·H2O. This method enables the benzoyl group to migrate from secondary groups to primary hydroxyl groups, or from equatorial secondary hydroxyl groups to axial hydroxyl groups. The 1,2 or 1,3 acyl migration would potentially occur via five- and six-membered cyclic ortho acid intermediates. A wide range of orthogonally protected monosaccharides, which are useful intermediates for the synthesis of natural oligosaccharides, were synthesized. Finally, to demonstrate the utility of the method, a tetrasaccharide portion from a mycobacterial cell wall polysaccharide was assembled.
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Affiliation(s)
- Xing-Yong Liang
- School of Chemistry Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - An-Lin Liu
- School of Chemistry Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Hua-Jun Shawn Fan
- School of Chemistry Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Lei Wang
- School of Chemistry Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Zhi-Ning Xu
- School of Chemistry Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Xin-Gang Ding
- School of Chemistry Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.
| | - Bo-Shun Huang
- Division of Chemistry and Chemical Engineering, California Institute of Technology and Howard Hughes Medical Institute, 1200 East California Boulevard, Pasadena, California 91125, USA.
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8
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Shekunti RK, Tangalipalli S, Dhonthulachitty C, Kothakapu SR, Annapurna PD, Neella CK. N
‐Benzoyl‐4‐dimethylaminopyridinium Chloride: A Lewis Base Adduct for Efficient Poly and Monobenzoylation. ChemistrySelect 2022. [DOI: 10.1002/slct.202202636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Swathi Tangalipalli
- Dept. of M.Sc.Chemistry Palamuru University Raichur Road Mahabubnagar Telangana 509001 India
| | | | - Sridhar Reddy Kothakapu
- Dept. of M.Sc. 5yr Integrated Chemistry Palamuru University Raichur Road Mahabubnagar Telangana 509001 India
| | | | - Chandra Kiran Neella
- Dept. of M.Sc.Chemistry Palamuru University Raichur Road Mahabubnagar Telangana 509001 India
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9
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Wen P, Jia P, Fan Q, McCarty BJ, Tang W. Streamlined Iterative Assembly of Thio-Oligosaccharides by Aqueous S-Glycosylation of Diverse Deoxythio Sugars. CHEMSUSCHEM 2022; 15:e202102483. [PMID: 34911160 PMCID: PMC9100857 DOI: 10.1002/cssc.202102483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/13/2021] [Indexed: 06/14/2023]
Abstract
A streamlined iterative assembly of thio-oligosaccharides was developed by aqueous glycosylation. Facile syntheses of various deoxythio sugars with the sulfur on different positions from commercially available starting materials were described. These syntheses featured efficient chemical methods including our recently reported BTM-catalyzed site-selective acylation. The resulting deoxythio sugars could then be used for the Ca(OH)2 -promoted protecting group-free S-glycosylation in water at room temperature. The aqueous glycosylation reaction proceeded smoothly to afford the corresponding 1,2-trans S-glycosides in good yields with high chemo- and stereoselectivity. An appropriate choice of protecting groups for the thiol in the glycosyl donor was necessary for the development of iterative synthesis of thio-oligosaccharides. The aqueous glycosylation was then applied to the synthesis of a trimannoside moiety of N-linked glycans core region.
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Affiliation(s)
- Peng Wen
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Peijing Jia
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Qiuhua Fan
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Bethany J McCarty
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI 53706, USA
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10
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Ren B, Wang J, Zhang M, Chen Y, Zhao W. A Chiral Copper Catalyzed Site‐Selective O‐Alkylation of Carbohydrates. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Bo Ren
- College of Pharmacy Xinxiang University Jinsui Avenue 191 Xinxiang Henan 453003 People's Republic of China
| | - Jiaxi Wang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and School of Chemical Engineering Sichuan University Chengdu 610041 People's Republic of China
| | - Mengyao Zhang
- College of Chemistry & Chemical Engineering Xinyang Normal University Nanhu Road 237 Xinyang Henan 464000, People's Republic of China
| | - Yue Chen
- College of Chemistry & Chemical Engineering Xinyang Normal University Nanhu Road 237 Xinyang Henan 464000, People's Republic of China
| | - Wei Zhao
- College of Chemistry & Chemical Engineering Xinyang Normal University Nanhu Road 237 Xinyang Henan 464000, People's Republic of China
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11
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Wang S, Zhelavskyi O, Lee J, Argüelles AJ, Khomutnyk YY, Mensah E, Guo H, Hourani R, Zimmerman PM, Nagorny P. Studies of Catalyst-Controlled Regioselective Acetalization and Its Application to Single-Pot Synthesis of Differentially Protected Saccharides. J Am Chem Soc 2021; 143:18592-18604. [PMID: 34705439 PMCID: PMC8585716 DOI: 10.1021/jacs.1c08448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This article describes studies on the regioselective acetal protection of monosaccharide-based diols using chiral phosphoric acids (CPAs) and their immobilized polymeric variants, (R)-Ad-TRIP-PS and (S)-SPINOL-PS, as the catalysts. These catalyst-controlled regioselective acetalizations were found to proceed with high regioselectivities (up to >25:1 rr) on various d-glucose-, d-galactose-, d-mannose-, and l-fucose-derived 1,2-diols and could be carried out in a regiodivergent fashion depending on the choice of chiral catalyst. The polymeric catalysts were conveniently recycled and reused multiple times for gram-scale functionalizations with catalytic loadings as low as 0.1 mol %, and their performance was often found to be superior to the performance of their monomeric variants. These regioselective CPA-catalyzed acetalizations were successfully combined with common hydroxyl group functionalizations as single-pot telescoped procedures to produce 32 regioisomerically pure differentially protected mono- and disaccharide derivatives. To further demonstrate the utility of the polymeric catalysts, the same batch of (R)-Ad-TRIP-PS catalyst was recycled and reused to accomplish single-pot gram-scale syntheses of 6 differentially protected d-glucose derivatives. The subsequent exploration of the reaction mechanism using NMR studies of deuterated and nondeuterated substrates revealed that low-temperature acetalizations happen via a syn-addition mechanism and that the reaction regioselectivity exhibits strong dependence on the temperature. The computational studies indicate a complex temperature-dependent interplay of two reaction mechanisms, one involving an anomeric phosphate intermediate and another via concerted asynchronous formation of an acetal, that results in syn-addition products. The computational models also explain the steric factors responsible for the observed C2 selectivities and are consistent with experimentally observed selectivity trends.
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Affiliation(s)
- Sibin Wang
- Chemistry Department, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109
| | - Oleksii Zhelavskyi
- Chemistry Department, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109
| | - Jeonghyo Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea
| | - Alonso J. Argüelles
- Synthetic Molecule Design and Development, Lilly Research Laboratories, Eli Lilly and Company, 307 E. Merrill St. Indianapolis, IN 46225
| | | | - Enoch Mensah
- Chemistry Department, Indiana University Southeast, 4201 Grant Line Rd. New Albany, IN 47150
| | - Hao Guo
- Deparment of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015
| | - Rami Hourani
- Chemistry Department, Stanford University, 333 Campus Drive, Stanford, CA 94305-5080
| | - Paul M. Zimmerman
- Chemistry Department, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109
| | - Pavel Nagorny
- Chemistry Department, University of Michigan, 930 N. University Avenue, Ann Arbor, MI 48109
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12
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Carder HM, Suh CE, Wendlandt AE. A Unified Strategy to Access 2- and 4-Deoxygenated Sugars Enabled by Manganese-Promoted 1,2-Radical Migration. J Am Chem Soc 2021; 143:13798-13805. [PMID: 34406756 DOI: 10.1021/jacs.1c05993] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The selective manipulation of carbohydrate scaffolds is challenging due to the presence of multiple, nearly chemically indistinguishable O-H and C-H bonds. As a result, protecting-group-based synthetic strategies are typically necessary for carbohydrate modification. Here we report a concise semisynthetic strategy to access diverse 2- and 4-deoxygenated carbohydrates without relying on the exhaustive use of protecting groups to achieve site-selective reaction outcomes. Our approach leverages a Mn2+-promoted redox isomerization step, which proceeds via sugar radical intermediates accessed by neutral hydrogen atom abstraction under visible light-mediated photoredox conditions. The resulting deoxyketopyranosides feature chemically distinguishable functional groups and are readily transformed into diverse carbohydrate structures. To showcase the versatility of this method, we report expedient syntheses of the rare sugars l-ristosamine, l-olivose, l-mycarose, and l-digitoxose from commercial l-rhamnose. The findings presented here validate the potential for radical intermediates to facilitate the selective transformation of carbohydrates and showcase the step and efficiency advantages attendant to synthetic strategies that minimize a reliance upon protecting groups.
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Affiliation(s)
- Hayden M Carder
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Carolyn E Suh
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Alison E Wendlandt
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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13
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Zhu K, Jiang M, Ye B, Zhang GT, Li W, Tang P, Huang Z, Chen F. A unified strategy to prostaglandins: chemoenzymatic total synthesis of cloprostenol, bimatoprost, PGF 2α, fluprostenol, and travoprost guided by biocatalytic retrosynthesis. Chem Sci 2021; 12:10362-10370. [PMID: 34377422 PMCID: PMC8336452 DOI: 10.1039/d1sc03237b] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/01/2021] [Indexed: 12/25/2022] Open
Abstract
Development of efficient and stereoselective synthesis of prostaglandins (PGs) is of utmost importance, owing to their valuable medicinal applications and unique chemical structures. We report here a unified synthesis of PGs cloprostenol, bimatoprost, PGF2α, fluprostenol, and travoprost from the readily available dichloro-containing bicyclic ketone 6a guided by biocatalytic retrosynthesis, in 11-12 steps with 3.8-8.4% overall yields. An unprecedented Baeyer-Villiger monooxygenase (BVMO)-catalyzed stereoselective oxidation of 6a (99% ee), and a ketoreductase (KRED)-catalyzed diastereoselective reduction of enones 12 (87 : 13 to 99 : 1 dr) were utilized in combination for the first time to set the critical stereochemical configurations under mild conditions. Another key transformation was the copper(ii)-catalyzed regioselective p-phenylbenzoylation of the secondary alcohol of diol 10 (9.3 : 1 rr). This study not only provides an alternative route to the highly stereoselective synthesis of PGs, but also showcases the usefulness and great potential of biocatalysis in construction of complex molecules.
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Affiliation(s)
- Kejie Zhu
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University 220 Handan Road Shanghai 200433 P. R. China .,Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs 220 Handan Road Shanghai 200433 P. R. China
| | - Meifen Jiang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University 220 Handan Road Shanghai 200433 P. R. China .,Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs 220 Handan Road Shanghai 200433 P. R. China
| | - Baijun Ye
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University 220 Handan Road Shanghai 200433 P. R. China .,Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs 220 Handan Road Shanghai 200433 P. R. China
| | - Guo-Tai Zhang
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Weijian Li
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Pei Tang
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
| | - Zedu Huang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University 220 Handan Road Shanghai 200433 P. R. China .,Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs 220 Handan Road Shanghai 200433 P. R. China
| | - Fener Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University 220 Handan Road Shanghai 200433 P. R. China .,Shanghai Engineering Research Center of Industrial Asymmetric Catalysis of Chiral Drugs 220 Handan Road Shanghai 200433 P. R. China.,Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
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14
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Nishikawa Y, Toda S, Matsui T, Takada H, Takemoto K, Hara O. Site-Selective Acylations of α- and β-Hydroxyamides in Complex Molecules: Application of Template-Driven Acylation to Disaccharides and a Glycopeptide. Org Lett 2021; 23:2715-2719. [PMID: 33734719 DOI: 10.1021/acs.orglett.1c00612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Site-selective acylations of α-and β-hydroxyamides in complex polyols are described. The combination of a pyridine aldoxime ester and Zn(OTf)2 facilitates the acylation of two types of N-glycolyl disaccharides, namely, Gal-GlcNGc and Neu5Gc-Gal, both of which are partial structures of polysaccharides responsible for biological actions, with highly site-selective modifications achieved. Furthermore, biotinylation, one of the most important techniques in chemical biology, is used to site-selectively acylate the β-hydroxyl group in a glycopeptide.
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Affiliation(s)
- Yasuhiro Nishikawa
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Shione Toda
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Takami Matsui
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Hanae Takada
- 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
| | - Osamu Hara
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, Aichi 468-8503, Japan
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15
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Seitz A, Wende RC, Roesner E, Niedek D, Topp C, Colgan AC, McGarrigle EM, Schreiner PR. Site-Selective Acylation of Pyranosides with Oligopeptide Catalysts. J Org Chem 2021; 86:3907-3922. [PMID: 33617252 DOI: 10.1021/acs.joc.0c02772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we report the oligopeptide-catalyzed site-selective acylation of partially protected monosaccharides. We identified catalysts that invert site-selectivity compared to N-methylimidazole, which was used to determine the intrinsic reactivity, for 4,6-O-protected glucopyranosides (trans-diols) as well as 4,6-O-protected mannopyranosides (cis-diols). The reaction yields up to 81% of the inherently unfavored 2-O-acetylated products with selectivities up to 15:1 using mild reaction conditions. We also determined the influence of protecting groups on the reaction and demonstrate that our protocol is suitable for one-pot reactions with multiple consecutive protection steps.
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Affiliation(s)
- Alexander Seitz
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Raffael C Wende
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Emily Roesner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Dominik Niedek
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Christopher Topp
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Avene C Colgan
- Centre for Synthesis & Chemical Biology, UCD School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eoghan M McGarrigle
- Centre for Synthesis & Chemical Biology, UCD School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
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16
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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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17
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Tang H, Tian YB, Cui H, Li RZ, Zhang X, Niu D. Site-switchable mono-O-allylation of polyols. Nat Commun 2020; 11:5681. [PMID: 33173032 PMCID: PMC7655818 DOI: 10.1038/s41467-020-19348-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/02/2020] [Indexed: 02/05/2023] Open
Abstract
Site-selective modification of complex molecules allows for rapid accesses to their analogues and derivatives, and, therefore, offers highly valuable opportunities to probe their functions. However, to selectively manipulate one out of many repeatedly occurring functional groups within a substrate represents a grand challenge in chemistry. Yet more demanding is to develop methods in which alterations to the reaction conditions lead to switching of the specific site of reaction. We report herein the development of a Pd/Lewis acid co-catalytic system that achieves not only site-selective, but site-switchable mono-O-allylation of polyols with readily available reagents and catalysts. Through exchanging the Lewis acid additives that recognize specific hydroxyls in a polyol substrate, our system managed to install a versatile allyl group to the target in a site-switchable manner. Our design demonstrates remarkable scope, and is amenable to the direct derivatization of various complex, bioactive natural products. Selective manipulation of one functional group, out of many repeatedly occurring in a substrate, represents a grand challenge in chemistry. Here, the authors report a Pd/Lewis acid cocatalytic system that achieves not only site-selective, but also site-switchable mono-O-allylation of polyols.
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Affiliation(s)
- Hua Tang
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, 610041, Chengdu, China
| | - Yu-Biao Tian
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, 610041, Chengdu, China
| | - Hongyan Cui
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, 610041, Chengdu, China
| | - Ren-Zhe Li
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, 610041, Chengdu, China
| | - Xia Zhang
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, 610041, Chengdu, China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy, West China Hospital, and School of Chemical Engineering, Sichuan University, 610041, Chengdu, China. .,State Key Laboratory of Natural Medicines, China Pharmaceutical University, 210009, Nanjing, China.
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18
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Li T, Li T, Linseis M, Wang F, Winter RF, Schmidt RR, Peng P. Catalytic Regioselective Benzoylation of 1,2- trans-Diols in Carbohydrates with Benzoyl Cyanide: The Axial Oxy Group Effect and the Action of Achiral and Chiral Amine Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02112] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tianlu Li
- National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan City, Shandong 250012, China
- Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan City, Shandong 250012, China
| | - Tong Li
- National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan City, Shandong 250012, China
| | - Michael Linseis
- Department of Chemistry, University of Konstanz, Konstanz D-78457, Germany
| | - Fengshan Wang
- National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan City, Shandong 250012, China
- Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan City, Shandong 250012, China
| | - Rainer F. Winter
- Department of Chemistry, University of Konstanz, Konstanz D-78457, Germany
| | - Richard R. Schmidt
- Department of Chemistry, University of Konstanz, Konstanz D-78457, Germany
| | - Peng Peng
- National Glycoengineering Research Center, Shandong Provincial Key Laboratory of Carbohydrate Chemistry and Glycobiology, Shandong University, Jinan City, Shandong 250012, China
- Key Laboratory of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan City, Shandong 250012, China
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19
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Niedek D, Erb FR, Topp C, Seitz A, Wende RC, Eckhardt AK, Kind J, Herold D, Thiele CM, Schreiner PR. In Situ Switching of Site-Selectivity with Light in the Acetylation of Sugars with Azopeptide Catalysts. J Org Chem 2020; 85:1835-1846. [PMID: 31763833 DOI: 10.1021/acs.joc.9b01913] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We present a novel concept for the in situ control of site-selectivity of catalytic acetylations of partially protected sugars using light as external stimulus and oligopeptide catalysts equipped with an azobenzene moiety. The isomerizable azobenzene-peptide backbone defines the size and shape of the catalytic pocket, while the π-methyl-l-histidine (Pmh) moiety transfers the electrophile. Photoisomerization of the E- to the Z-azobenzene catalyst (monitored via NMR) with an LED (λ = 365 nm) drastically changes the chemical environment around the catalytically active Pmh moiety, so that the light-induced change in the catalyst shape alters site-selectivity. As a proof of principle, we employed (4,6-O-benzylidene)methyl-α-d-pyranosides, which provide a change in regioselectivity from 2:1 (E) to 1:5 (Z) for the monoacetylated products at room temperature. The validity of this new catalyst-design concept is further demonstrated with the regioselective acetylation of the natural product quercetin. In situ irradiation NMR spectroscopy was used to quantify photostationary states under continuous irradiation with UV light.
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Affiliation(s)
- Dominik Niedek
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Frederik R Erb
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Christopher Topp
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Alexander Seitz
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Raffael C Wende
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - André K Eckhardt
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
| | - Jonas Kind
- Clemens-Schöpf-Institut für Organische Chemie und Biochemie , Technische Universität Darmstadt , Alarich-Weiss-Str. 16 , 64287 Darmstadt , Germany
| | - Dominik Herold
- Clemens-Schöpf-Institut für Organische Chemie und Biochemie , Technische Universität Darmstadt , Alarich-Weiss-Str. 16 , 64287 Darmstadt , Germany
| | - Christina M Thiele
- Clemens-Schöpf-Institut für Organische Chemie und Biochemie , Technische Universität Darmstadt , Alarich-Weiss-Str. 16 , 64287 Darmstadt , Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry , Justus Liebig University , Heinrich-Buff-Ring 17 , 35392 Giessen , Germany
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20
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Kusano S, Miyamoto S, Matsuoka A, Yamada Y, Ishikawa R, Hayashida O. Benzoxaborole Catalyst for Site-Selective Modification of Polyols. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901749] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Shuhei Kusano
- Department of Chemistry; Faculty of Science; Fukuoka University; Nanakuma 8-19-1 814-0180 Fukuoka Japan
| | - Shoto Miyamoto
- Department of Chemistry; Faculty of Science; Fukuoka University; Nanakuma 8-19-1 814-0180 Fukuoka Japan
| | - Aki Matsuoka
- Department of Chemistry; Faculty of Science; Fukuoka University; Nanakuma 8-19-1 814-0180 Fukuoka Japan
| | - Yuji Yamada
- Department of Chemistry; Faculty of Science; Fukuoka University; Nanakuma 8-19-1 814-0180 Fukuoka Japan
| | - Ryuta Ishikawa
- Department of Chemistry; Faculty of Science; Fukuoka University; Nanakuma 8-19-1 814-0180 Fukuoka Japan
| | - Osamu Hayashida
- Department of Chemistry; Faculty of Science; Fukuoka University; Nanakuma 8-19-1 814-0180 Fukuoka Japan
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21
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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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22
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Storch G, van den Heuvel N, Miller SJ. Site-Selective Nitrene Transfer to Conjugated Olefins Directed by Oxazoline Peptide Ligands. Adv Synth Catal 2020; 362:289-294. [PMID: 32256275 PMCID: PMC7108786 DOI: 10.1002/adsc.201900631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Indexed: 11/06/2022]
Abstract
Site-selective nitrene transfer to di- and polyene substrates has been achieved using designed peptide-embedded bioxazoline ligands capable of binding copper. In model 1,3-diene substrates, the olefinic position proximal to a directing group was selectively functionalized. Additional studies indicate that this selectivity stems from non-covalent substrate-catalyst interactions. The peptide-mediated nitrene transfer was also applied to polyene natural product retinol and selective proximal functionalization allowed access to a cis-pyrroline modified retinoid.
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Affiliation(s)
- Golo Storch
- Department of Chemistry, Yale University, New Haven, CT 06520-8107, USA
| | | | - Scott J Miller
- Department of Chemistry, Yale University, New Haven, CT 06520-8107, USA
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23
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Wu J, Li X, Qi X, Duan X, Cracraft WL, Guzei IA, Liu P, Tang W. Site-Selective and Stereoselective O-Alkylation of Glycosides by Rh(II)-Catalyzed Carbenoid Insertion. J Am Chem Soc 2019; 141:19902-19910. [PMID: 31739665 DOI: 10.1021/jacs.9b11262] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Carbohydrates are synthetically challenging molecules with vital biological roles in all living systems. Selective synthesis and functionalization of carbohydrates provide tremendous opportunities to improve our understanding on the biological functions of this fundamentally important class of molecules. However, selective functionalization of seemingly identical hydroxyl groups in carbohydrates remains a long-standing challenge in chemical synthesis. We herein describe a practical and predictable method for the site-selective and stereoselective alkylation of carbohydrate hydroxyl groups via Rh(II)-catalyzed insertion of metal carbenoid intermediates. This represents one of the mildest alkylation methods for the systematic modification of carbohydrates. Density functional theory (DFT) calculations suggest that the site selectivity is determined in the Rh(II)-carbenoid insertion step, which prefers insertion into hydroxyl groups with an adjacent axial substituent. The subsequent intramolecular enolate protonation determines the unexpected high stereoselectivity. The most prevalent trans-1,2-diols in various pyranoses can be systematically and predictably differentiated based on the model derived from DFT calculations. We also demonstrated that the selective O-alkylation method could significantly improve the efficiency and stereoselectivity of glycosylation reactions. The alkyl groups introduced to carbohydrates by OH insertion reaction can serve as functional groups, protecting groups, and directing groups.
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Affiliation(s)
- Jicheng Wu
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Xiaolei Li
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Xiaotian Qi
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Xiyan Duan
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Weston L Cracraft
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Ilia A Guzei
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Peng Liu
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States.,Department of Chemical and Petroleum Engineering , University of Pittsburgh , Pittsburgh , Pennsylvania 15261 , United States
| | - Weiping Tang
- School of Pharmacy , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States.,Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
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24
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Li J, Grosslight S, Miller SJ, Sigman MS, Toste FD. Site-selective acylation of natural products with BINOL-derived phosphoric acids. ACS Catal 2019; 9:9794-9799. [PMID: 31827975 DOI: 10.1021/acscatal.9b03535] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The site-selective acylation of a steroidal natural product 19-hydroxydehydroepiandrosterone catalyzed by 1,1'-Bi(2-napthol)-derived (BINOL) chiral phosphoric acids (CPA's) is described. Systematic variation and multivariate linear regression analysis reveal that the same steric parameters typically needed for high enantioselectivity with this class of CPAs are also required for site-selectivity in this case. Density functional theory calculations identify additional weak CH-π interactions as contributors to site discrimination. We further report a rare example of site-selective acylation of phenols through the evaluation of naringenin, a flavonoid natural product, using CPA catalysis. These results suggest that BINOL-derived CPA's may have broader applications in site-selective catalysis.
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Affiliation(s)
- Junqi Li
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Samantha Grosslight
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Scott J. Miller
- Department of Chemistry, Yale University, New Haven, Connecticut 06520-8107, United States
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - F. Dean Toste
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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25
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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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26
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Ren B, Zhang L, Zhang M. Progress on Selective Acylation of Carbohydrate Hydroxyl Groups. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900400] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bo Ren
- College of Chemistry & Chemical EngineeringXinyang Normal University Nanhu Road 237 Xinyang, Henan 464000 P. R. China
| | - Li Zhang
- College of Chemistry & Chemical EngineeringXinyang Normal University Nanhu Road 237 Xinyang, Henan 464000 P. R. China
| | - Mengyao Zhang
- College of Chemistry & Chemical EngineeringXinyang Normal University Nanhu Road 237 Xinyang, Henan 464000 P. R. China
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27
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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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28
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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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29
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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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30
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Yang H, Zheng WH. Parallel Kinetic Resolution of Unsymmetrical Acyclic Aliphatic syn-1,3-Diols. Org Lett 2019; 21:5197-5200. [PMID: 31247762 DOI: 10.1021/acs.orglett.9b01801] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Disclosed is a mild, reliable, and enantioselective catalytic parallel kinetic resolution of unsymmetrical acyclic aliphatic syn-1,3-diol derived acetals mediated by chiral phosphoric acid. This method provides stereoselective access to a variety of syn-1,3-diols as valuable building blocks with high enantioselectivity. Moreover, this mild system allows for site-selective protection of optically pure syn-1,3-diols in excellent regioselectivity.
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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 , 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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31
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Kuwano S, Hosaka Y, Arai T. Chiral benzazaboroles as catalysts for enantioselective sulfonylation of cis-1,2-diols. Org Biomol Chem 2019; 17:4475-4482. [PMID: 30900704 DOI: 10.1039/c8ob03205j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A newly developed benzazaborole smoothly catalyzed the enantioselective sulfonylation of cis-1,2-diols. Using a chiral benzazaborole/NMI co-catalyst system, various sulfonate esters were prepared in high yields with good enantioselectivities.
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Affiliation(s)
- Satoru Kuwano
- Soft Molecular Activation Research Center (SMARC), Chiba Iodine Resource Innovation Center (CIRIC), Molecular Chirality Research Center (MCRC), Synthetic Organic Chemistry, Department of Chemistry, Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba, Japan.
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32
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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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33
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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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34
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Lv J, Luo T, Zhang Y, Pei Z, Dong H. Regio/Site-Selective Benzoylation of Carbohydrates by Catalytic Amounts of FeCl 3. ACS OMEGA 2018; 3:17717-17723. [PMID: 31458369 PMCID: PMC6643987 DOI: 10.1021/acsomega.8b02360] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/06/2018] [Indexed: 05/10/2023]
Abstract
This work uncovered the regio/site-selective benzoylation of 1,2- and 1,3-diols and glycosides containing a cis-vicinal diol using a catalytic amount of FeCl3 with the assistance of acetylacetone. FeCl3 may initially form [Fe(acac)3] (acac = acetylacetonate) with excess acetylacetone in the presence of diisopropylethylamine (DIPEA) in acetonitrile at room temperature. Then, benzoylation was catalyzed by Fe(acac)3 with added benzoyl chloride in the presence of DIPEA under mild conditions as reported. This reaction produced selectivities and isolated yields similar to or slightly lower than the reaction using Fe(acac)3 as a catalyst in most cases. The result provides not only the green and convenient selective benzoylation method associated with the most inexpensive catalysts but also the possibility that the effects of various metal salts and ligands on the regioselective protection can be extensively investigated in future study to obtain the optimized catalytic system.
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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
| | - Tao Luo
- 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
| | - Ying Zhang
- 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
| | - Zhichao Pei
- College
of Chemistry and Pharmacy, Northwest A&F
University, Yangling, 712100 Shaanxi, P. R. 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
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35
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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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36
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Ren B, Gan L, Zhang L, Yan N, Dong H. Diisopropylethylamine-triggered, highly efficient, self-catalyzed regioselective acylation of carbohydrates and diols. Org Biomol Chem 2018; 16:5591-5597. [PMID: 30027976 DOI: 10.1039/c8ob01464g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A diisopropylethylamine (DIPEA)-triggered, self-catalyzed, regioselective acylation of carbohydrates and diols is presented. The hydroxyl groups can be acylated by the corresponding anhydride in MeCN in the presence of a catalytic amount of DIPEA. This method is comparatively green and mild as it uses less organic base compared with other selective acylation methods. Mechanistic studies indicate that DIPEA reacts with the anhydride to form a carboxylate ion, and then the carboxylate ion could catalyze the selective acylation through a dual H-bonding interaction.
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Affiliation(s)
- Bo Ren
- College of Chemistry & Chemical Engineering, Xinyang Normal University, Nanhu Road 237, Xinyang, Henan 464000, P. R. China.
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37
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Affiliation(s)
- Michael Martin Nielsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
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38
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Kulkarni SS, Wang CC, Sabbavarapu NM, Podilapu AR, Liao PH, Hung SC. "One-Pot" Protection, Glycosylation, and Protection-Glycosylation Strategies of Carbohydrates. Chem Rev 2018; 118:8025-8104. [PMID: 29870239 DOI: 10.1021/acs.chemrev.8b00036] [Citation(s) in RCA: 207] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Carbohydrates, which are ubiquitously distributed throughout the three domains of life, play significant roles in a variety of vital biological processes. Access to unique and homogeneous carbohydrate materials is important to understand their physical properties, biological functions, and disease-related features. It is difficult to isolate carbohydrates in acceptable purity and amounts from natural sources. Therefore, complex saccharides with well-defined structures are often most conviently accessed through chemical syntheses. Two major hurdles, regioselective protection and stereoselective glycosylation, are faced by carbohydrate chemists in synthesizing these highly complicated molecules. Over the past few years, there has been a radical change in tackling these problems and speeding up the synthesis of oligosaccharides. This is largely due to the development of one-pot protection, one-pot glycosylation, and one-pot protection-glycosylation protocols and streamlined approaches to orthogonally protected building blocks, including those from rare sugars, that can be used in glycan coupling. In addition, new automated strategies for oligosaccharide syntheses have been reported not only for program-controlled assembly on solid support but also by the stepwise glycosylation in solution phase. As a result, various sugar molecules with highly complex, large structures could be successfully synthesized. To summarize these recent advances, this review describes the methodologies for one-pot protection and their one-pot glycosylation into the complex glycans and the chronological developments associated with automated syntheses of oligosaccharides.
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Affiliation(s)
- Suvarn S Kulkarni
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | | | | | - Ananda Rao Podilapu
- Department of Chemistry , Indian Institute of Technology Bombay , Mumbai 400076 , India
| | - Pin-Hsuan Liao
- Institute of Chemistry , Academia Sinica , Taipei 115 , Taiwan
| | - Shang-Cheng Hung
- Genomics Research Center , Academia Sinica , Taipei 115 , Taiwan
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39
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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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40
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Wang HY, Blaszczyk SA, Xiao G, Tang W. Chiral reagents in glycosylation and modification of carbohydrates. Chem Soc Rev 2018; 47:681-701. [PMID: 29206256 DOI: 10.1039/c7cs00432j] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Carbohydrates play a significant role in numerous biological events, and the chemical synthesis of carbohydrates is vital for further studies to understand their various biological functions. Due to the structural complexity of carbohydrates, the stereoselective formation of glycosidic linkages and the site-selective modification of hydroxyl groups are very challenging and at the same time extremely important. In recent years, the rapid development of chiral reagents including both chiral auxiliaries and chiral catalysts has significantly improved the stereoselectivity for glycosylation reactions and the site-selectivity for the modification of carbohydrates. These new tools will greatly facilitate the efficient synthesis of oligosaccharides, polysaccharides, and glycoconjugates. In this tutorial review, we will summarize these advances and highlight the most recent examples.
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Affiliation(s)
- Hao-Yuan Wang
- School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA.
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41
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Nagaki A, Yamashita H, Takahashi Y, Ishiuchi S, Imai K, Yoshida JI. Selective Mono Addition of Aryllithiums to Dialdehydes by Micromixing. CHEM LETT 2018. [DOI: 10.1246/cl.170899] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroki Yamashita
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yusuke Takahashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Satoshi Ishiuchi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Keita Imai
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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42
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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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43
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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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44
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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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45
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Li RZ, Tang H, Wan L, Zhang X, Fu Z, Liu J, Yang S, Jia D, Niu D. Site-Divergent Delivery of Terminal Propargyls to Carbohydrates by Synergistic Catalysis. Chem 2017. [DOI: 10.1016/j.chempr.2017.09.007] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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46
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Dimakos V, Garrett GE, Taylor MS. Site-Selective, Copper-Mediated O-Arylation of Carbohydrate Derivatives. J Am Chem Soc 2017; 139:15515-15521. [DOI: 10.1021/jacs.7b09420] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Victoria Dimakos
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Graham E. Garrett
- 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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47
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Donthulachitti C, Kothakapu SR, Shekunti RK, Neella CK. [DMAPTs] +
Cl −
: A Promising Versatile Regioselective Tosyl Transfer Reagent. ChemistrySelect 2017. [DOI: 10.1002/slct.201700675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chiranjeevi Donthulachitti
- Department of 5-Yr M.Sc. Chemistry; University College; Palamuru University; Mahabubanagar, Telangana 509001 India
| | - Sridhar Reddy Kothakapu
- Department of 5-Yr M.Sc. Chemistry; University College; Palamuru University; Mahabubanagar, Telangana 509001 India
| | - Ravi Kumar Shekunti
- Department of 5-Yr M.Sc. Chemistry; University College; Palamuru University; Mahabubanagar, Telangana 509001 India
| | - Chandra Kiran Neella
- Department of 5-Yr M.Sc. Chemistry; University College; Palamuru University; Mahabubanagar, Telangana 509001 India
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48
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Tay JH, Argüelles AJ, DeMars MD, Zimmerman PM, Sherman DH, Nagorny P. Regiodivergent Glycosylations of 6-Deoxy-erythronolide B and Oleandomycin-Derived Macrolactones Enabled by Chiral Acid Catalysis. J Am Chem Soc 2017; 139:8570-8578. [PMID: 28627172 PMCID: PMC5553906 DOI: 10.1021/jacs.7b03198] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This work describes the first example of using chiral catalysts to control site-selectivity for the glycosylations of complex polyols such as 6-deoxyerythronolide B and oleandomycin-derived macrolactones. The regiodivergent introduction of sugars at the C3, C5, and C11 positions of macrolactones was achieved by selecting appropriate chiral acids as catalysts or through introduction of stoichiometric boronic acid-based additives. BINOL-based chiral phosphoric acids (CPAs) were used to catalyze highly selective glycosylations at the C5 positions of macrolactones (up to 99:1 rr), whereas the use of SPINOL-based CPAs resulted in selectivity switch and glycosylation of the C3 alcohol (up to 91:9 rr). Additionally, the C11 position of macrolactones was selectively functionalized through traceless protection of the C3/C5 diol with boronic acids prior to glycosylation. Investigation of the reaction mechanism for the CPA-controlled glycosylations revealed the involvement of covalently linked anomeric phosphates rather than oxocarbenium ion pairs as the reactive intermediates.
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Affiliation(s)
- Jia-Hui Tay
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109 United States
| | - Alonso J. Argüelles
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109 United States
| | - Matthew D. DeMars
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109 United States
| | - Paul M. Zimmerman
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109 United States
| | - David H. Sherman
- Life Sciences Institute, University of Michigan, Ann Arbor, MI 48109 United States
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109 United States
- Department of Microbiology & Immunology, University of Michigan, Ann Arbor, MI 48109 United States
| | - Pavel Nagorny
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109 United States
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109 United States
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49
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Xiao G, Cintron-Rosado GA, Glazier DA, Xi BM, Liu C, Liu P, Tang W. Catalytic Site-Selective Acylation of Carbohydrates Directed by Cation-n Interaction. J Am Chem Soc 2017; 139:4346-4349. [PMID: 28297601 DOI: 10.1021/jacs.7b01412] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Site-selective functionalization of hydroxyl groups in carbohydrates is one of the long-standing challenges in chemistry. Using a pair of chiral catalysts, we now can differentiate the most prevalent trans-1,2-diols in pyranoses systematically and predictably. Density functional theory (DFT) calculations indicate that the key determining factor for the selectivity is the presence or absence of a cation-n interaction between the cation in the acylated catalyst and an appropriate lone pair in the substrate. DFT calculations also provided a predictive model for site-selectivity and this model is validated by various substrates.
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Affiliation(s)
- Guozhi Xiao
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Gabriel A Cintron-Rosado
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
| | - Daniel A Glazier
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States.,Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
| | - Bao-Min Xi
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Can Liu
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States
| | - Weiping Tang
- School of Pharmacy, University of Wisconsin-Madison , Madison, Wisconsin 53705, United States.,Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States
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Tong ML, Huber F, Taghuo Kaptouom ES, Cellnik T, Kirsch SF. Enhanced site-selectivity in acylation reactions with substrate-optimized catalysts on solid supports. Chem Commun (Camb) 2017; 53:3086-3089. [DOI: 10.1039/c7cc00655a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A concept for site-selective acylation is presented, using substrate-optimized DMAP–peptide conjugates on a solid support.
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Affiliation(s)
- My Linh Tong
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
| | - Florian Huber
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
| | | | - Torsten Cellnik
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
| | - Stefan F. Kirsch
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
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