1
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Fan NL, Zhang L, Peng CY, Liao WL, Hu XG. Synthesis and Biological Activities of Scleropentaside D. J Org Chem 2024; 89:9098-9102. [PMID: 38861461 DOI: 10.1021/acs.joc.4c00755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
We report the first total synthesis of scleropentaside D, a unique C-glycosidic ellagitannin, from the ketal derivative of scleropentaside A employing site-selective O4-protection of C-acyl glycoside and copper-catalyzed oxidative coupling reaction of galloyl groups as the key steps. Our study confirms the proposed structure of this natural product, scleropentaside D, and demonstrates its effectiveness as an inhibitor of α-glycosidase.
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Affiliation(s)
| | | | | | | | - Xiang-Guo Hu
- National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, 330022, China
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2
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Zhou Y, Liao KS, Chen TY, Hsieh YSY, Wong CH. Effective Organotin-Mediated Regioselective Functionalization of Unprotected Carbohydrates. J Org Chem 2023. [PMID: 37167441 DOI: 10.1021/acs.joc.3c00397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Regioselective functionalization of unprotected carbohydrates at a secondary OH group in the presence of primary OH groups based on the commonly used organotin-mediated reaction has been improved. We found that the preactivation of the dibutylstannylene acetal intermediate with tetrabutylammonium bromide in toluene is a key to the improved condition for the efficient, high-yielding, and regioselective tosylation, benzoylation, or benzylation of unprotected carbohydrates. The counteranion of tetrabutylammonium ion with a weak coordination ability plays a crucial role in the improved regioselective reactions. A convenient access to the intermediates of synthetic value is also demonstrated in the organotin-mediated regioselective tosylation of unprotected carbohydrates, followed by the nucleophilic inversion reaction to give sulfur-containing and azide-modified carbohydrates.
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Affiliation(s)
- Yixuan Zhou
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
| | - Kuo-Shiang Liao
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
| | - Tzu-Yin Chen
- School of Pharmacy, College of Pharmacy, Taipei Medical University, No. 250 Wu-Hsing Street, Taipei City 110, Taiwan
| | - Yves S Y Hsieh
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
- School of Pharmacy, College of Pharmacy, Taipei Medical University, No. 250 Wu-Hsing Street, Taipei City 110, Taiwan
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), AlbaNova University Center, SE-106 91 Stockholm, Sweden
| | - Chi-Huey Wong
- Genomics Research Center, Academia Sinica, No. 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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3
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Yamatsugu K, Kanai M. Catalytic Approaches to Chemo- and Site-Selective Transformation of Carbohydrates. Chem Rev 2023; 123:6793-6838. [PMID: 37126370 DOI: 10.1021/acs.chemrev.2c00892] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Carbohydrates are a fundamental unit playing pivotal roles in all the biological processes. It is thus essential to develop methods for synthesizing, functionalizing, and manipulating carbohydrates for further understanding of their functions and the creation of sugar-based functional materials. It is, however, not trivial to develop such methods, since carbohydrates are densely decorated with polar and similarly reactive hydroxy groups in a stereodefined manner. New approaches to chemo- and site-selective transformations of carbohydrates are, therefore, of great significance for revolutionizing sugar chemistry to enable easier access to sugars of interest. This review begins with a brief overview of the innate reactivity of hydroxy groups of carbohydrates. It is followed by discussions about catalytic approaches to enhance, override, or be orthogonal to the innate reactivity for the transformation of carbohydrates. This review avoids making a list of chemo- and site-selective reactions, but rather focuses on summarizing the concept behind each reported transformation. The literature references were sorted into sections based on the underlying ideas of the catalytic approaches, which we hope will help readers have a better sense of the current state of chemistry and develop innovative ideas for the field.
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Affiliation(s)
- Kenzo Yamatsugu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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4
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Kawabata T. Novel Strategies for Enantio- and Site-Selective Molecular Transformations. Chem Pharm Bull (Tokyo) 2023; 71:466-484. [PMID: 37394594 DOI: 10.1248/cpb.c23-00219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
A strategy for symmetric synthesis based on dynamic chirality of enolates (memory of chirality) has been developed. Asymmetric alkylation, conjugate addition, aldol reaction, and arylation via C-N axially chiral enolate intermediates are described. Asymmetric alkylation and conjugate addition via C-O axially chiral enolate intermediates with a half-life of racemization as short as approx. 1 s. at -78 °C have been accomplished. Organocatalysts for asymmetric acylation and site-selective acylation have been developed. Kinetic resolution of racemic alcohols via remote asymmetric induction by the catalyst is shown. Catalyst-controlled site-selective acylation of carbohydrates and its application to total synthesis of natural glycoside are described. Chemo-selective monoacylation of diols and selective acylation of secondary alcohols with reversal of inherent reactivity are also discussed. Geometry-selective acylation of tetrasubstituted alkene diols is achieved, where acylation takes place independent from the steric environments of the substrates.
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5
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Wakamori S, Osada R, Matsumoto S, Kusuki R, Murakami K. Verification of Biaryl-Structure Axial Chirality Produced in Ellagitannins by Chemical Oxidation. Org Lett 2022; 24:8130-8135. [DOI: 10.1021/acs.orglett.2c03173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shinnosuke Wakamori
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Rumi Osada
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Shintaro Matsumoto
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Reina Kusuki
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Kei Murakami
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
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6
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Lv WX, Chen H, Zhang X, Ho CC, Liu Y, Wu S, Wang H, Jin Z, Chi YR. Programmable selective acylation of saccharides mediated by carbene and boronic acid. Chem 2022. [DOI: 10.1016/j.chempr.2022.04.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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7
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Yadav RN, Hossain MF, Das A, Srivastava AK, Banik BK. Organocatalysis: A recent development on stereoselective synthesis of o-glycosides. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2022.2041303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ram Naresh Yadav
- Department of Chemistry, Faculty of Engineering & Technology, Veer Bahadur Singh Purvanchal University, Jaunpur, India
| | - Md. Firoj Hossain
- Department of Chemistry, University of North Bengal, Darjeeling, India
| | - Aparna Das
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Khobar, Saudi Arabia
| | - Ashok Kumar Srivastava
- Department of Chemistry, Faculty of Engineering & Technology, Veer Bahadur Singh Purvanchal University, Jaunpur, India
| | - Bimal Krishna Banik
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin Fahd University, Khobar, Saudi Arabia
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8
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Hashimoto H, Ueda Y, Takasu K, Kawabata T. Catalytic Substrate‐Selective Silylation of Primary Alcohols via Remote Functional‐Group Discrimination. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hisashi Hashimoto
- Institute for Chemical Research Kyoto University Gokasho Uji city Kyoto 611-0011 Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research Kyoto University Gokasho Uji city Kyoto 611-0011 Japan
| | - Kiyosei Takasu
- Graduate School of Pharmaceutical Sciences Kyoto University Yoshida Kyoto, Sakyo-ku 606-8501 Kyoto Japan
| | - Takeo Kawabata
- Institute for Chemical Research Kyoto University Gokasho Uji city Kyoto 611-0011 Japan
- Current address: Department of Pharmaceutical Sciences International University of Health and Welfare 137-1 Enokizu Okawa Fukuoka 831-8501 Japan
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10
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Hashimoto H, Ueda Y, Takasu K, Kawabata T. Catalytic Substrate-Selective Silylation of Primary Alcohols via Remote Functional-Group Discrimination. Angew Chem Int Ed Engl 2021; 61:e202114118. [PMID: 34942061 DOI: 10.1002/anie.202114118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Indexed: 11/07/2022]
Abstract
Silylation of alcohols has generally been known to take place at the sterically most accessible less-hindered hydroxy group. However, we report here the catalyst-controlled substrate-selective silylation of primary alcohols, where the selectivity was controlled independent of the innate reactivity of the hydroxy group based on the steric environment. The chain-length-selective silylation of 1, n- amino alcohol derivatives was achieved, where 1,5-amino alcohol derivatives showed outstanding high reactivity in the presence of analogues with a shorter or longer chain length under catalyst-controlled conditions. A highly substrate-selective catalytic silylation of pentanol analogues was also developed, in which the remote functionality at C(5) from the reacting hydroxy groups was effectively discriminated on silylation.
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Affiliation(s)
- Hisashi Hashimoto
- Institute for Chemical Research, Kyoto University Gokasho, Uji city, Kyoto, 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University Gokasho, Uji city, Kyoto, 611-0011, Japan
| | - Kiyosei Takasu
- Graduate School of Pharmaceutical Sciences, Kyoto University Yoshida Kyoto, Sakyo-ku, 606-8501, Kyoto, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University Gokasho, Uji city, Kyoto, 611-0011, Japan
- Current address: Department of Pharmaceutical Sciences, International University of Health and Welfare, 137-1 Enokizu, Okawa, Fukuoka, 831-8501, Japan
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11
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Ueda Y. Site-Selective Molecular Transformation: Acylation of Hydroxy Groups and C-H Amination. Chem Pharm Bull (Tokyo) 2021; 69:931-944. [PMID: 34602573 DOI: 10.1248/cpb.c21-00425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Control of site selectivity is an exciting direction for synthetic organic chemistry owing to the possibility of selective modification of multifunctionalized molecules, ultimately including biomacromolecules. In this review, our recent research related to site selectivity in two types of transformation, namely, the acylation of hydroxy groups and C-H amination, is summarized. Regarding the acylation of hydroxy groups, catalyst-controlled site selectivity enables unconventional retrosynthetic analysis, leading to efficient syntheses of sugar-related natural and unnatural products. Regarding C-H amination, the discovery of unprecedented reaction sites in intermolecular amination mediated by dirhodium nitrenes is described. The findings of this research demonstrate the power of site-selective transformation in the synthesis of a particular class of compounds.
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12
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Chemical Modification of Glycosaminoglycan Polysaccharides. Molecules 2021; 26:molecules26175211. [PMID: 34500644 PMCID: PMC8434129 DOI: 10.3390/molecules26175211] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 12/16/2022] Open
Abstract
The linear anionic class of polysaccharides, glycosaminoglycans (GAGs), are critical throughout the animal kingdom for developmental processes and the maintenance of healthy tissues. They are also of interest as a means of influencing biochemical processes. One member of the GAG family, heparin, is exploited globally as a major anticoagulant pharmaceutical and there is a growing interest in the potential of other GAGs for diverse applications ranging from skin care to the treatment of neurodegenerative conditions, and from the treatment and prevention of microbial infection to biotechnology. To realize the potential of GAGs, however, it is necessary to develop effective tools that are able to exploit the chemical manipulations to which GAGs are susceptible. Here, the current knowledge concerning the chemical modification of GAGs, one of the principal approaches for the study of the structure-function relationships in these molecules, is reviewed. Some additional methods that were applied successfully to the analysis and/or processing of other carbohydrates, but which could be suitable in GAG chemistry, are also discussed.
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13
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Yamashita T, Matsuo Y, Saito Y, Tanaka T. Formation of Dehydrohexahydroxydiphenoyl Esters by Oxidative Coupling of Galloyl Esters in an Aqueous Medium Involved in Ellagitannin Biosynthesis. Chem Asian J 2021; 16:1735-1740. [PMID: 33960720 DOI: 10.1002/asia.202100380] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/06/2021] [Indexed: 12/18/2022]
Abstract
Hexahydroxydiphenoyl (HHDP) and dehydrohexahydroxydiphenoyl (DHHDP) groups are the major acyl components of ellagitannins, which are polyphenols whose biosynthesis have attracted considerable attention; however, the mechanisms of the production of HHDP and DHHDP in the ellagitannin biosynthesis have not been clarified. With the aim of elucidating such a mechanism, this study investigates the CuCl2 -mediated oxidation of simple galloyl derivatives in an aqueous medium. It is shown that the oxidation of methyl gallate affords a DHHDP-type dimer, whose reduction with Na2 S2 O4 yields an HHDP-type dimer. However, the oxidation of the HHDP-type product over CuCl2 does not afford the parent DHHDP ester. The oxidation of 1,4-butanediol digallate under the same conditions produces a DHHDP-type product via the intramolecular coupling of galloyl groups. These results strongly suggest that the DHHDP group is the initial product of the oxidative coupling of two galloyl groups in the ellagitannin biosynthesis, and subsequent reductive metabolism affords HHDP esters.
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Affiliation(s)
- Takako Yamashita
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Yosuke Matsuo
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Yoshinori Saito
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
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14
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Zhang ZJ, Zhou X, Li D, Chen Y, Xiao WW, Li RT, Shao LD. Aerobic Copper-Catalyzed Intramolecular Cascade Oxidative Isomerization/[4+4] Cyclization of 2,2'-Disubstituted Stilbenes. J Org Chem 2021; 86:7609-7624. [PMID: 33904741 DOI: 10.1021/acs.joc.1c00656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An aerobic copper-catalyzed cascade oxidative isomerization/[4+4] cyclization of 2,2'-disubstituted stilbenes is described. Under the mild CuCl/DBED/air catalytic system, various 5,10-heteroatom-containing tetrahydroindeno[2,1-a]indenes were efficiently prepared through the difunctionalizations of alkenes in a highly atom economic manner. Mechanistic investigations suggested the bicyclic product was likely formed through a sequence of rapid single-electron oxidation/[4+4] cyclization from 2,2'-disubstituted stilbene. The antarafacial manner of the thermally allowed [4+4] cyclization was further proven by series of control experiments and density functional theory calculations. Our findings provide an important addition to the aerobic copper-catalyzed oxidative cyclization.
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Affiliation(s)
- Zhi-Jun Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xu Zhou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Dashan Li
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Yang Chen
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Wen-Wen Xiao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Li-Dong Shao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
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15
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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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16
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Shibayama H, Ueda Y, Tanaka T, Kawabata T. Seven-Step Stereodivergent Total Syntheses of Punicafolin and Macaranganin. J Am Chem Soc 2021; 143:1428-1434. [DOI: 10.1021/jacs.0c10714] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hiromitsu Shibayama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki 852-8521, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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17
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Gu Y, Wang T, Gao M, Yao ZJ. Scalable Cu(II)-mediated intramolecular dehydrogenative phenol-phenol coupling: Concise synthesis of enantiopure axially chiral homo- and hetero-diphenols. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Ueda Y, Kawabata T. Catalyst-Controlled Site-Selective Acylation and its Application to Unconventional Total Synthesis of Natural Glycosides. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.1138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sengupta S, Mehta G. Macrocyclization via C-H functionalization: a new paradigm in macrocycle synthesis. Org Biomol Chem 2020; 18:1851-1876. [PMID: 32101232 DOI: 10.1039/c9ob02765c] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The growing emphasis on macrocycles in engaging difficult therapeutic targets such as protein-protein interactions and GPCRs via preferential adaptation of bioactive and cell penetrating conformations has provided impetus to the search for de novo macrocyclization strategies that are efficient, chemically robust and amenable to diversity creation. An emerging macrocyclization paradigm based on the C-H activation logic, of particular promise in the macrocyclization of complex peptides, has added a new dimension to this pursuit, enabling efficacious access to macrocycles of various sizes and topologies with high atom and step economy. Significant achievements in macrocyclization methodologies and their applications in the synthesis of bioactive natural products and drug-like molecules, employing strategic variations of C-H activation are captured in this review. It is expected that this timely account will foster interest in newer ways of macrocycle construction among practitioners of organic synthesis and chemical biology to advance the field.
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Affiliation(s)
- Saumitra Sengupta
- School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad-5000 046, Telengana, India.
| | - Goverdhan Mehta
- School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad-5000 046, Telengana, India.
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20
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Abstract
A total synthesis was developed of phyllanemblinin B, a natural ellagitannin containing 1-O-galloyl and 2,4-O-hexahydroxydiphenoyl groups on a d-glucose scaffold. The use of a μ-hydroxo copper(II) complex resulted in a completely stereoselective oxidative coupling of the galloyl groups on the open-chain glucose moiety and facilitated the first total synthesis of phyllanemblinin B.
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Affiliation(s)
| | | | - Kentaro Nishii
- School of Science and Technology, Kwansei Gakuin University
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University
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21
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Takeuchi H, Fujimori Y, Ueda Y, Shibayama H, Nagaishi M, Yoshimura T, Sasamori T, Tokitoh N, Furuta T, Kawabata T. Solvent-Dependent Mechanism and Stereochemistry of Mitsunobu Glycosylation with Unprotected Pyranoses. Org Lett 2020; 22:4754-4759. [DOI: 10.1021/acs.orglett.0c01549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hironori Takeuchi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yusuke Fujimori
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Hiromitsu Shibayama
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Masaru Nagaishi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Tomoyuki Yoshimura
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takahiro Sasamori
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takumi Furuta
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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22
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Abstract
This study involves the total synthesis of casuarinin, a naturally occurring ellagitannin, in which an open-chain glucose is esterified with two (S)-hexahydroxydiphenoyl (HHDP) groups. One HHDP group incorporates a C-glycosidic bond between its benzene ring and the glucose moiety, which was constructed with complete stereoselectivity using a benzyl oxime group that opened the glucopyranose ring and acted as a scaffold for C-glycoside production. This total synthesis enables future structure-activity relationship studies of this compound.
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Affiliation(s)
- Shinnosuke Wakamori
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Shintaro Matsumoto
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Reina Kusuki
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Kazutada Ikeuchi
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Hidetoshi Yamada
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
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23
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Ikeuchi K, Ueji T, Matsumoto S, Wakamori S, Yamada H. First Total Synthesis of Neostrictinin. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kazutada Ikeuchi
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen 669-1337 Sanda Japan
| | - Tatsuya Ueji
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen 669-1337 Sanda Japan
| | - Shintaro Matsumoto
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen 669-1337 Sanda Japan
| | - Shinnosuke Wakamori
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen 669-1337 Sanda Japan
| | - Hidetoshi Yamada
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen 669-1337 Sanda Japan
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24
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Shibayama H, Ueda Y, Kawabata T. Total Synthesis of Cercidinin A via a Sequential Site-selective Acylation Strategy. CHEM LETT 2020. [DOI: 10.1246/cl.190872] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiromitsu Shibayama
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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25
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Kasama K, Aoyama H, Akai S. Enantiodivergent Synthesis of Axially Chiral Biphenyls from σ-Symmetric 1,1'-Biphenyl-2,6-diol Derivatives by Single Lipase-Catalyzed Acylative and Hydrolytic Desymmetrization. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901583] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kengo Kasama
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
| | - Hiroshi Aoyama
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences; Osaka University; 1-6, Yamadaoka, Suita 565-0871 Osaka Japan
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26
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Abe H, Imai H, Ogura D, Horino Y. Synthesis of Lactonized Valoneoyl Group-Containing Ellagitannins, Oenothein C and Cornusiin B. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)42] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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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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28
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Yanagi M, Ueda Y, Ninomiya R, Imayoshi A, Furuta T, Mishiro K, Kawabata T. Synthesis of 4-Deoxy Pyranosides via Catalyst-Controlled Site-Selective Toluoylation of Abundant Sugars. Org Lett 2019; 21:5006-5009. [DOI: 10.1021/acs.orglett.9b01549] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Masanori Yanagi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Ryo Ninomiya
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Ayumi Imayoshi
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takumi Furuta
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Kenji Mishiro
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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29
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Kawabata T. Potential in Acylation. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Gao W, Jiang JS, Chen Z, Yang YN, Feng ZM, Zhang X, Yuan X, Zhang PC. Stereospecific acyloin ring contraction controlled by glucose and concise total synthesis of saffloneoside. Org Chem Front 2019. [DOI: 10.1039/c9qo00279k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Saffloneoside (1), a structurally unusual p-hydroxycinnamylcyclopentenone C-glucoside obtained from the florets of Carthamus tinctorius, was synthesized on a gram scale in seven steps.
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Affiliation(s)
- Wan Gao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
| | - Jian-Shuang Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
| | - Zhong Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
| | - Ya-Nan Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
| | - Zi-Ming Feng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
| | - Xu Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
| | - Xiang Yuan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
| | - Pei-Cheng Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
- P.R. China
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31
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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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32
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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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33
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Ikeuchi K, Wakamori S, Hirokane T, Yamada H. Development of Methods Aimed at Syntheses of All Ellagitannins. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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34
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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: 202] [Impact Index Per Article: 33.7] [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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35
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Affiliation(s)
- Lei Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Zhuang Chen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Xiwu Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Yanxing Jia
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
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36
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Arai K, Ueda Y, Morisaki K, Furuta T, Sasamori T, Tokitoh N, Kawabata T. Intermolecular chemo- and regioselective aromatic C-H amination of alkoxyarenes promoted by rhodium nitrenoids. Chem Commun (Camb) 2018; 54:2264-2267. [PMID: 29435532 DOI: 10.1039/c7cc09952e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Intermolecular aromatic C(sp2)-H amination promoted by neutral rhodium nitrenoids has been developed. The reactions proceeded with various oxygen-substituted arenes (1.5 equiv.) in a chemo- and regioselective manner. The aromatic C(sp2)-H amination took place at the para position of the oxygen substituent in the presence of benzylic C(sp3)-H bonds and/or C(sp3)-H bonds α to ethereal oxygen.
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Affiliation(s)
- Kenta Arai
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
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37
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Pavic Q, Tranchimand S, Lemiègre L, Legentil L. Diversion of a thioglycoligase for the synthesis of 1-O-acyl arabinofuranoses. Chem Commun (Camb) 2018; 54:5550-5553. [DOI: 10.1039/c8cc01726c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An arabinofuranosylhydrolase from the GH51 family was transformed into an acyl transferase by mutation of the catalytic acid/base amino acid.
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Affiliation(s)
- Quentin Pavic
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR – UMR 6226
- F-35000 Rennes
| | - Sylvain Tranchimand
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR – UMR 6226
- F-35000 Rennes
| | - Loïc Lemiègre
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR – UMR 6226
- F-35000 Rennes
| | - Laurent Legentil
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- ISCR – UMR 6226
- F-35000 Rennes
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38
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Ashibe S, Ikeuchi K, Kume Y, Wakamori S, Ueno Y, Iwashita T, Yamada H. Non-Enzymatic Oxidation of a Pentagalloylglucose Analogue into Members of the Ellagitannin Family. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708703] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Seiya Ashibe
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Kazutada Ikeuchi
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Yuji Kume
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Shinnosuke Wakamori
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Yuri Ueno
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Takashi Iwashita
- Bioorganic Research Institute; Suntory Foundation for Life Sciences; 8-1-1 Seikadai, Seika-cho Soraku-gun Kyoto 619-0284 Japan
| | - Hidetoshi Yamada
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
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39
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Ashibe S, Ikeuchi K, Kume Y, Wakamori S, Ueno Y, Iwashita T, Yamada H. Non-Enzymatic Oxidation of a Pentagalloylglucose Analogue into Members of the Ellagitannin Family. Angew Chem Int Ed Engl 2017; 56:15402-15406. [DOI: 10.1002/anie.201708703] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/01/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Seiya Ashibe
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Kazutada Ikeuchi
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Yuji Kume
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Shinnosuke Wakamori
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Yuri Ueno
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
| | - Takashi Iwashita
- Bioorganic Research Institute; Suntory Foundation for Life Sciences; 8-1-1 Seikadai, Seika-cho Soraku-gun Kyoto 619-0284 Japan
| | - Hidetoshi Yamada
- School of Science and Technology; Kwansei Gakuin University; 2-1 Gakuen Sanda 669-1337 Japan
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40
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Abstract
The application of small molecules as catalysts for the diversification of natural product scaffolds is reviewed. Specifically, principles that relate to the selectivity challenges intrinsic to complex molecular scaffolds are summarized. The synthesis of analogues of natural products by this approach is then described as a quintessential "late-stage functionalization" exercise wherein natural products serve as the lead scaffolds. Given the historical application of enzymatic catalysts to the site-selective alteration of complex molecules, the focus of this Review is on the recent studies of nonenzymatic catalysts. Reactions involving hydroxyl group derivatization with a variety of electrophilic reagents are discussed. C-H bond functionalizations that lead to oxidations, aminations, and halogenations are also presented. Several examples of site-selective olefin functionalizations and C-C bond formations are also included. Numerous classes of natural products have been subjected to these studies of site-selective alteration including polyketides, glycopeptides, terpenoids, macrolides, alkaloids, carbohydrates, and others. What emerges is a platform for chemical remodeling of naturally occurring scaffolds that targets virtually all known chemical functionalities and microenvironments. However, challenges for the design of very broad classes of catalysts, with even broader selectivity demands (e.g., stereoselectivity, functional group selectivity, and site-selectivity) persist. Yet, a significant spectrum of powerful, catalytic alterations of complex natural products now exists such that expansion of scope seems inevitable. Several instances of biological activity assays of remodeled natural product derivatives are also presented. These reports may foreshadow further interdisciplinary impacts for catalytic remodeling of natural products, including contributions to SAR development, mode of action studies, and eventually medicinal chemistry.
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Affiliation(s)
- Christopher R. Shugrue
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Scott J. Miller
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
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41
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Sakurai K, Hiraizumi M, Isogai N, Komatsu R, Shibata T, Ohta Y. Synthesis of a fluorescent photoaffinity probe of OSW-1 by site-selective acylation of an inactive congener and biological evaluation. Chem Commun (Camb) 2017; 53:517-520. [PMID: 27909709 DOI: 10.1039/c6cc08955k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel fluorescent photoaffinity probe of OSW-1 was prepared in two steps from a naturally occurring inactive congener by a sequential site-selective acylation strategy using Me2SnCl2. It displayed highly potent anticancer activity and a similar intracellular localization property to that of a fluorescently-tagged OSW-1, thereby demonstrating its potential utility in live cell studies.
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Affiliation(s)
- K Sakurai
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - M Hiraizumi
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - N Isogai
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - R Komatsu
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - T Shibata
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
| | - Y Ohta
- Tokyo University of Agriculture and Technology, Department of Biotechnology and Life Science, Koganei-shi, Tokyo 184-8588, Japan.
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42
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Yamada H, Hirokane T, Ikeuchi K, Wakamori S. Fundamental Methods in Ellagitannin Synthesis. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This account describes methods for synthesizing natural ellagitannins. The ellagitannins, a class of polyphenols, has a wide variety of chemical structures and biological activities. Here, we focus on three topics, which are the synthesis of the hexahydroxydiphenoyl group, construction of the hexahydroxydiphenoyl bridge, and synthesis of C–O digallates. The hexahydroxydiphenoyl group and the C–O digallates are C–C and C–O coupled galloyl groups, respectively, both group of which are the two major components of ellagitannins. By combining methods described in this account, many ellagitannins might be synthesized.
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Affiliation(s)
- Hidetoshi Yamada
- School of Science and Technology, Kwansei Gakuin University, Gakuen, Sanda 669-1337, Japan
| | - Tsukasa Hirokane
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan
| | - Kazutada Ikeuchi
- School of Science and Technology, Kwansei Gakuin University, Gakuen, Sanda 669-1337, Japan
| | - Shinnosuke Wakamori
- School of Science and Technology, Kwansei Gakuin University, Gakuen, Sanda 669-1337, Japan
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43
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Downey AM, Hocek M. Strategies toward protecting group-free glycosylation through selective activation of the anomeric center. Beilstein J Org Chem 2017; 13:1239-1279. [PMID: 28694870 PMCID: PMC5496566 DOI: 10.3762/bjoc.13.123] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 06/01/2017] [Indexed: 12/13/2022] Open
Abstract
Glycosylation is an immensely important biological process and one that is highly controlled and very efficient in nature. However, in a chemical laboratory the process is much more challenging and usually requires the extensive use of protecting groups to squelch reactivity at undesired reactive moieties. Nonetheless, by taking advantage of the differential reactivity of the anomeric center, a selective activation at this position is possible. As a result, protecting group-free strategies to effect glycosylations are available thanks to the tremendous efforts of many research groups. In this review, we showcase the methods available for the selective activation of the anomeric center on the glycosyl donor and the mechanisms by which the glycosylation reactions take place to illustrate the power these techniques.
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Affiliation(s)
- A Michael Downey
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
- Department of Organic Chemistry, Faculty of Science, Charles University in Prague, 12843 Prague 2, Czech Republic
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Yanagi M, Imayoshi A, Ueda Y, Furuta T, Kawabata T. Carboxylate Anions Accelerate Pyrrolidinopyridine (PPy)-Catalyzed Acylation: Catalytic Site-Selective Acylation of a Carbohydrate by in Situ Counteranion Exchange. Org Lett 2017; 19:3099-3102. [DOI: 10.1021/acs.orglett.7b01213] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Masanori Yanagi
- Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan
| | - Ayumi Imayoshi
- Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan
| | - Yoshihiro Ueda
- Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan
| | - Takumi Furuta
- Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan
| | - Takeo Kawabata
- Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan
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Inuki S, Aiba T, Kawakami S, Akiyama T, Inoue JI, Fujimoto Y. Chemical Synthesis of d-glycero-d-manno-Heptose 1,7-Bisphosphate and Evaluation of Its Ability to Modulate NF-κB Activation. Org Lett 2017; 19:3079-3082. [DOI: 10.1021/acs.orglett.7b01158] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shinsuke Inuki
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Toshihiko Aiba
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
- Department
of Chemistry, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Shota Kawakami
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Taishin Akiyama
- Division
of Cellular and Molecular Biology, Department of Cancer Biology, The
Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Jun-ichiro Inoue
- Division
of Cellular and Molecular Biology, Department of Cancer Biology, The
Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Yukari Fujimoto
- Graduate
School of Science and Technology, Keio University 3-14-1 Hiyoshi,
Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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46
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Downey AM, Pohl R, Roithová J, Hocek M. Synthesis of Nucleosides through Direct Glycosylation of Nucleobases with 5-O-Monoprotected or 5-Modified Ribose: Improved Protocol, Scope, and Mechanism. Chemistry 2017; 23:3910-3917. [DOI: 10.1002/chem.201604955] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Indexed: 12/26/2022]
Affiliation(s)
- A. Michael Downey
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
| | - Jana Roithová
- Department of Organic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 8 12843 Prague 2 Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nám. 2 16610 Prague 6 Czech Republic
- Department of Organic Chemistry; Faculty of Science; Charles University in Prague; Hlavova 8 12843 Prague 2 Czech Republic
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Takeuchi H, Ueda Y, Furuta T, Kawabata T. Total Synthesis of Ellagitannins via Sequential Site-Selective Functionalization of Unprotected D-Glucose. Chem Pharm Bull (Tokyo) 2017; 65:25-32. [PMID: 28049912 DOI: 10.1248/cpb.c16-00436] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A short-step total synthesis of the natural glycosides pterocarinin C and tellimagrandin II (eugeniin) has been performed by sequential and site-selective functionalization of free hydroxy groups of unprotected D-glucose. The key reactions are β-selective glycosidation of a gallic acid derivative using unprotected D-glucose as a glycosyl donor and catalyst-controlled site-selective introduction of a galloyl group into the inherently less reactive hydroxy group of the glucoside.
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48
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Eisink NNM, Witte MD, Minnaard AJ. Regioselective Carbohydrate Oxidations: A Nuclear Magnetic Resonance (NMR) Study on Selectivity, Rate, and Side-Product Formation. ACS Catal 2017; 7:1438-1445. [PMID: 28367353 PMCID: PMC5370080 DOI: 10.1021/acscatal.6b03459] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/14/2017] [Indexed: 01/14/2023]
Abstract
Palladium/neocuproine catalyzed oxidation of glucosides shows an excellent selectivity for the C3-OH, but in mannosides and galactosides, unselective oxidation was initially observed. For further application in more-complex (oligo)saccharides, a better understanding of the reaction, in terms of selectivity and reactivity, is required. Therefore, a panel of different glycosides was synthesized, subjected to palladium/neocuproine catalyzed oxidation and subsequently analyzed by qNMR. Surprisingly, all studied glucosides, mannosides, galactosides, and xylosides show selective oxidation of the C3-OH. However, subsequent reaction of the resulting ketone moiety is the main culprit for side product formation. Measures are reported to suppress these side reactions. The observed differences in reaction rate, glucosides being the most rapidly oxidized, may be exploited for the selective oxidation of complex oligosaccharides.
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Affiliation(s)
- Niek N.
H. M. Eisink
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747
AG, Groningen, The Netherlands
| | - Martin D. Witte
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747
AG, Groningen, The Netherlands
| | - Adriaan J. Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747
AG, Groningen, The Netherlands
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Davis HJ, Phipps RJ. Harnessing non-covalent interactions to exert control over regioselectivity and site-selectivity in catalytic reactions. Chem Sci 2017; 8:864-877. [PMID: 28572898 PMCID: PMC5452277 DOI: 10.1039/c6sc04157d] [Citation(s) in RCA: 255] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 10/05/2016] [Indexed: 12/20/2022] Open
Abstract
Asymmetric catalysis has been revolutionised by the realisation that attractive non-covalent interactions such as hydrogen bonds and ion pairs can act as powerful controllers of enantioselectivity when incorporated into appropriate small molecule chiral scaffolds. Given these tremendous advances it is surprising that there are still a relatively limited number of examples of non-covalent interactions being harnessed for control of regioselectivity or site-selectivity in catalysis, two other fundamental selectivity aspects facing the synthetic chemist. This perspective examines the progress that has been made in this area thus far using non-covalent interactions in conjunction with transition metal catalysis as well as in the context of purely organic catalysts. We hope this will highlight the great potential in this approach for designing selective catalytic reactions.
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Affiliation(s)
- Holly J Davis
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK .
| | - Robert J Phipps
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge , CB2 1EW , UK .
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50
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Rocheleau S, Pottel J, Huskić I, Moitessier N. Highly Regioselective Monoacylation of Unprotected Glucopyranoside Using Transient Directing-Protecting Groups. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601457] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sylvain Rocheleau
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
| | - Joshua Pottel
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
| | - Igor Huskić
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
| | - Nicolas Moitessier
- Department of Chemistry; McGill University; 801, Sherbrooke St·W. H3A 0B8 Montreal Canada
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