1
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Li J, Fu Z, Qiao Z, Xie D, Zhang L, Liu YZ, Yang J, Yan JX, Ma X. Controllable 1,3-Bis-Functionalization of 2-Nitroglycals with High Regioselectivity and Stereoselectivity Enabled by a H-Bond Catalyst. JACS AU 2024; 4:974-984. [PMID: 38559736 PMCID: PMC10976612 DOI: 10.1021/jacsau.3c00727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 04/04/2024]
Abstract
The selective modification of carbohydrates is significant for producing their unnatural analogues for drug discovery. C1-functionalization (glycosylation) and C1,C2-difunctionalization of carbohydrates have been well developed. In contrast, C3-functionalization or C1,C3-difunctionalization of carbohydrates remains rare. Herein, we report such processes that efficiently and stereoselectively modify carbohydrates. Specifically, we found that trifluoroethanol (TFE) could promote 1,3-bis-indolylation/pyrrolylation of 2-nitroglycals generated carbohydrate derivatives in up to 93% yield at room temperature; slightly reducing the temperature could install two different indoles at the C1- and C3-positions. Switching TFE to a bifunctional amino thiourea catalyst leads to the generation of C3 monosubstituted carbohydrates, which could also be used to construct 1,3-di-C-functionalized carbohydrates. This approach produced a range of challenging sugar derivatives (over 80 examples) with controllable and high stereoselectivity (single isomer for over 90% of the examples). The potential applications of the reaction were demonstrated by a set of transformations including the synthesis of bridged large-ring molecules and gram scale reactions. Biological activities evaluation demonstrated that three compounds exhibit a potent inhibitory effect on human cancer cells T24, HCT116, AGS, and MKN-45 with IC50 ranged from 0.695 to 3.548 μM.
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Affiliation(s)
- Jiangtao Li
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
- University
of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Zhengyan Fu
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
- Department
of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy,
West China Hospital, Sichuan University, Chengdu 610041, People’s Republic of China
| | - Zeen Qiao
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
- University
of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Demeng Xie
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Li Zhang
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
- University
of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Ya-Zhou Liu
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
| | - Jian Yang
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
- University
of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jia-Xin Yan
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
- University
of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiaofeng Ma
- Natural
Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People’s Republic of China
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2
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Wan Y, Zhou M, Wang L, Hu K, Liu D, Liu H, Sun JS, Codée JDC, Zhang Q. Regio- and Stereoselective Organocatalyzed Relay Glycosylations To Synthesize 2-Amino-2-deoxy-1,3-dithioglycosides. Org Lett 2023; 25:3611-3617. [PMID: 37191370 DOI: 10.1021/acs.orglett.3c00859] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Herein, we describe a novel methodology for the regio- and stereoselective convergent synthesis of 2-amino-2-deoxy-dithioglycosides via one-pot relay glycosylation of 3-O-acetyl-2-nitroglucal donors. This unique organo-catalysis relay glycosylation features excellent site- and stereoselectivity, good to excellent yields, mild reaction conditions, and broad substrate scope. 2-Amino-2-deoxy-glucosides/mannosides bearing 1,3-dithio-linkages were efficiently obtained from 3-O-acetyl-2-nitroglucal donors in both stepwise and one-pot glycosylation protocols. The dithiolated O-antigen of E. coli serogroup 64 was successfully synthesized using this newly developed method.
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Affiliation(s)
- Yongyong Wan
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Meimei Zhou
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Liming Wang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Kexin Hu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Deyong Liu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Hui Liu
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
| | - Jian-Song Sun
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Jeroen D C Codée
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, Netherlands
| | - Qingju Zhang
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang 330022, China
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3
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Wu X, Zheng Z, Wang L, Xue Y, Liao J, Liu H, Liu D, Sun JS, Zhang Q. Stereoselective Synthesis of 2,3‐diamino‐2,3‐dideoxyglycosides from 3‐O‐acetyl‐2‐nitroglycals. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200519] [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)
- Xiaopei Wu
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Zhichao Zheng
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Liming Wang
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Yunxia Xue
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Jinxi Liao
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Hui Liu
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Deyong Liu
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Jian-Song Sun
- Jiangxi Normal University Jiangxi Normal University CHINA
| | - Qingju Zhang
- Jiangxi Normal University National Research Centre for Carbohydrate Synthesis 99 Ziyang Avenue 330022 Nanchang CHINA
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4
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Wan Y, Wu X, Xue Y, Lin XE, Wang L, Sun JS, Zhang Q. Stereoselective glycosylation with conformation-constrained 2-Nitroglycals as donors and bifunctional thiourea as catalyst. J Carbohydr Chem 2022. [DOI: 10.1080/07328303.2021.2023560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yongyong Wan
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, China
| | - Xiaopei Wu
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, China
| | - Yunxia Xue
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, China
| | - Xi-E Lin
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, China
| | - Liming Wang
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, China
| | - Jian-Song Sun
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, China
| | - Qingju Zhang
- National Research Centre for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, China
- Key laboratory of Functional Small Molecule, Ministry of Education, Jiangxi Normal University, Nanchang, China
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5
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Jiang N, Mei Y, Yang Y, Dong Y, Ding Z, Zhang J. A General Strategy for the Stereoselective Synthesis of Pyrrole‐Fused Chiral Skeletons: [3+2] Cycloaddition with 2‐Nitro‐2,3‐Unsaturated Glycosides. ChemCatChem 2021. [DOI: 10.1002/cctc.202100795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Nan Jiang
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241
| | - Yuling Mei
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241
| | - Yu Yang
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241
| | - Youxian Dong
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241
| | - Zekun Ding
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241
| | - Jianbo Zhang
- School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241
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6
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Merieux G, Buchotte M, Muzard M, Plantier-Royon R. Synthesis of 2-Substituted Thioglycals from Carbohydrate-Derived Ketene Dithioacetals. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Guillaume Merieux
- Université de Reims Champagne-Ardenne; Institut de Chimie Moléculaire de Reims (ICMR); CNRS UMR 7312; UFR Sciences Exactes et Naturelles; BP 1039 51687 Reims Cedex 2 France
| | - Marie Buchotte
- Université de Reims Champagne-Ardenne; Institut de Chimie Moléculaire de Reims (ICMR); CNRS UMR 7312; UFR Sciences Exactes et Naturelles; BP 1039 51687 Reims Cedex 2 France
| | - Murielle Muzard
- Université de Reims Champagne-Ardenne; Institut de Chimie Moléculaire de Reims (ICMR); CNRS UMR 7312; UFR Sciences Exactes et Naturelles; BP 1039 51687 Reims Cedex 2 France
| | - Richard Plantier-Royon
- Université de Reims Champagne-Ardenne; Institut de Chimie Moléculaire de Reims (ICMR); CNRS UMR 7312; UFR Sciences Exactes et Naturelles; BP 1039 51687 Reims Cedex 2 France
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7
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Parasuraman K, Chennaiah A, Dubbu S, Ibrahim Sheriff AK, Vankar YD. Stereoselective synthesis of substituted 1,2-annulated sugars by domino double-Michael addition reaction. Carbohydr Res 2019; 477:26-31. [PMID: 30954772 DOI: 10.1016/j.carres.2019.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 03/04/2019] [Accepted: 03/18/2019] [Indexed: 11/16/2022]
Abstract
A simple, highly stereoselective one-pot methodology for the synthesis of novel 1,2-annulated sugars comprising of oxa-oxa and oxa-carbasugar fused skeletons from 2-nitrogalactal and a sugar-derived enone, obtained from 2-formylgalactal, promoted by KOtBu and CH3ONa respectively is described. Both processes rely on a domino double-Michael addition reaction resulting in the formation of three stereocenters in a single pot, including a quaternary center.
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Affiliation(s)
- Kadigachalam Parasuraman
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India; PG and Research Department of Chemistry, C. Abdul Hakeem College (Autonomous), Melvisharam, 632509, Tamil Nadu, India
| | - Ande Chennaiah
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sateesh Dubbu
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - A K Ibrahim Sheriff
- PG and Research Department of Chemistry, C. Abdul Hakeem College (Autonomous), Melvisharam, 632509, Tamil Nadu, India
| | - Yashwant D Vankar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
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8
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Lafuente L, Rochetti MF, Bravo R, Sasiambarrena L, Santiago CC, Ponzinibbio A. Cu-Fe Spinels: First Heterogeneous and Magnetically Recoverable Catalyst for the Ferrier Rearrangement of 2-Nitroglycals. LETT ORG CHEM 2019. [DOI: 10.2174/1570178615666181022145338] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cu-Fe spinels promoted the Ferrier rearrangement of 2-nitroglycals with several
O-nucleophiles. 2,3-Unsaturated carbohydrate derivatives were prepared by the reaction of 3,4,6-tri-Oacetyl-
2-nitroglucal and alcohols in the presence of 5 % of CuFe2O4. After separation of the catalyst with
an external magnet, the reaction products were obtained in good yields and high stereo and regioselectivity.
Also, S- and heterocyclic C-3 substituted 2-nitro-endo-glycals could be prepared by this method.
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Affiliation(s)
- Leticia Lafuente
- Centro de Estudio de Compuestos Organicos (CEDECOR), Departamento de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | | | - Rodolfo Bravo
- Centro de Estudio de Compuestos Organicos (CEDECOR), Departamento de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - Leandro Sasiambarrena
- Centro de Estudio de Compuestos Organicos (CEDECOR), Departamento de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - Cintia C. Santiago
- Centro de Estudio de Compuestos Organicos (CEDECOR), Departamento de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
| | - Agustín Ponzinibbio
- Centro de Estudio de Compuestos Organicos (CEDECOR), Departamento de Quimica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 y 115, 1900, La Plata, Argentina
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9
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Chennaiah A, Dahiya A, Dubbu S, Vankar YD. A Stereoselective Synthesis of an Imino Glycal: Application in the Synthesis of (-)-1-epi-Adenophorine and a Homoimindosugar. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801241] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ande Chennaiah
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
| | - Amit Dahiya
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
| | - Sateesh Dubbu
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
| | - Yashwant D. Vankar
- Department of Chemistry; Indian Institute of Technology Kanpur; -208016 Kanpur India
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10
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Abstract
Deoxy-sugars often play a critical role in modulating the potency of many bioactive natural products. Accordingly, there has been sustained interest in methods for their synthesis over the past several decades. The focus of much of this work has been on developing new glycosylation reactions that permit the mild and selective construction of deoxyglycosides. This Review covers classical approaches to deoxyglycoside synthesis, as well as more recently developed chemistry that aims to control the selectivity of the reaction through rational design of the promoter. Where relevant, the application of this chemistry to natural product synthesis will also be described.
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Affiliation(s)
- Clay S. Bennett
- Department
of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - M. Carmen Galan
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, United Kingdom
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11
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Affiliation(s)
- Michael Martin Nielsen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
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12
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Liu JL, Zhang YT, Liu HF, Zhou L, Chen J. N-Heterocyclic Carbene Catalyzed Stereoselective Glycosylation of 2-Nitrogalactals. Org Lett 2017; 19:5272-5275. [PMID: 28906121 DOI: 10.1021/acs.orglett.7b02543] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An efficient N-heterocyclic carbene catalyzed glycosylation of 2-nitrogalactals with alcohols and phenol has been developed for the first time. A wide variety of 1,2-cis-2-nitroglycosides can be obtained with good to excellent yields and high to excellent α-selectivities.
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Affiliation(s)
- Jia-Lin Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Yu-Tong Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Hang-Fan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University , Xi'an 710127, P. R. China
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13
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Affiliation(s)
- Ryan Williams
- School of Chemistry; University of Bristol; Cantock's Close BS8 1TS Bristol U.K
| | - M. Carmen Galan
- School of Chemistry; University of Bristol; Cantock's Close BS8 1TS Bristol U.K
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14
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Yoshida K, Kanoko Y, Takao K. Kinetically Controlled α-SelectiveO-Glycosylation of Phenol Derivatives Using 2-Nitroglycals by a Bifunctional Chiral Thiourea Catalyst. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600307] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Keisuke Yoshida
- Institute for Chemical Research; Kyoto University, Gokasho, Uji; Kyoto 611-0011 Japan
| | - Yohei Kanoko
- Department of Applied Chemistry; Keio University, Hiyoshi, Kohoku-ku; Yokohama 223-8522 Japan
| | - Kenichi Takao
- Department of Applied Chemistry; Keio University, Hiyoshi, Kohoku-ku; Yokohama 223-8522 Japan
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15
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Medina S, Harper MJ, Balmond EI, Miranda S, Crisenza GEM, Coe DM, McGarrigle EM, Galan MC. Stereoselective Glycosylation of 2-Nitrogalactals Catalyzed by a Bifunctional Organocatalyst. Org Lett 2016; 18:4222-5. [PMID: 27529800 PMCID: PMC5049936 DOI: 10.1021/acs.orglett.6b01962] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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The
use of a bifunctional cinchona/thiourea organocatalyst for
the direct and α-stereoselective glycosylation of 2-nitrogalactals
is demonstrated for the first time. The conditions are mild, practical,
and applicable to a wide range of glycoside acceptors with products
being isolated in good to excellent yields. The method is exemplified
in the synthesis of mucin type Core 6 and 7 glycopeptides.
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Affiliation(s)
- Sandra Medina
- School of Chemistry, University of Bristol , Cantock's Close, Bristol, BS8 1TS, United Kingdom
| | - Matthew J Harper
- School of Chemistry, University of Bristol , Cantock's Close, Bristol, BS8 1TS, United Kingdom
| | - Edward I Balmond
- School of Chemistry, University of Bristol , Cantock's Close, Bristol, BS8 1TS, United Kingdom
| | - Silvia Miranda
- School of Chemistry, University of Bristol , Cantock's Close, Bristol, BS8 1TS, United Kingdom
| | - Giacomo E M Crisenza
- School of Chemistry, University of Bristol , Cantock's Close, Bristol, BS8 1TS, United Kingdom
| | - Diane M Coe
- GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage SG1 2NY, United Kingdom
| | - Eoghan M McGarrigle
- Centre for Synthesis and Chemical Biology, UCD School of Chemistry, University College Dublin , Belfield, Dublin 4, Ireland
| | - M Carmen Galan
- School of Chemistry, University of Bristol , Cantock's Close, Bristol, BS8 1TS, United Kingdom
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16
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Ivanovs I, Bērziņa S, Lugiņina J, Belyakov S, Rjabovs V. Stereoselective Michael addition of O-nucleophiles to carbohydrate-based nitro-olefin. HETEROCYCL COMMUN 2016. [DOI: 10.1515/hc-2016-0003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AbstractMichael addition reactions of O-nucleophiles to C(3) exocyclic nitromethylene derivative of diacetone glucose are reported. The reactions with primary alcohols proceed at ambient temperature in the presence of different bases with good yields and give products with excellent diastereoselectivity. The addition of the nucleophile occurs from the β-face of the carbohydrate as shown by single crystal X-ray analysis. The reactions with secondary alcohols give low yields of products while phenolic compounds do not react. Under certain conditions, isomerization of starting material is observed.
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Affiliation(s)
- Ilgvalds Ivanovs
- 1Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena 3/7, Riga, LV-1048, Latvia
| | - Santa Bērziņa
- 1Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena 3/7, Riga, LV-1048, Latvia
| | - Jevgeņija Lugiņina
- 1Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena 3/7, Riga, LV-1048, Latvia
| | - Sergey Belyakov
- 2Latvian Institute of Organic Synthesis, Aizkraukles str. 21, Riga, LV-1006, Latvia
| | - Vitālijs Rjabovs
- 1Institute of Technology of Organic Chemistry, Faculty of Materials Science and Applied Chemistry, Riga Technical University, P. Valdena 3/7, Riga, LV-1048, Latvia
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17
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1,4-Addition of the CF3 group, perfluoroalkyl groups and functionalized difluoromethylated moieties: An overview. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.07.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Peng P, Geng Y, Göttker-Schnetmann I, Schmidt RR. 2-Nitro-thioglycosides: α- and β-selective generation and their potential as β-selective glycosyl donors. Org Lett 2015; 17:1421-4. [PMID: 25740177 DOI: 10.1021/acs.orglett.5b00295] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Michael-type addition of thiolates to 2-nitro-D-glucal or to 2-nitro-D-galactal derivatives readily provides 2-deoxy-2-nitro-1-thioglycosides. Kinetic and thermodynamic reaction control permitted formation of either the α- or preferentially the β-anomers, respectively. Addition of achiral and chiral thiourea derivatives to the reaction mixture increased the reaction rate; the outcome is substrate-controlled. The 2-deoxy-2-nitro-1-thioglycosides are excellent glycosyl donors under arylsulfenyl chloride/silver triflate (ArSCl/AgOTf) activation, and they provide, anchimerically assisted by the nitro group, mostly β-glycosides.
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Affiliation(s)
- Peng Peng
- Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| | - Yiqun Geng
- Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
| | | | - Richard R Schmidt
- Department of Chemistry, University of Konstanz, 78457 Konstanz, Germany
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19
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Bouwman S, Orru RVA, Ruijter E. Stereoselective synthesis of fluorinated aminoglycosyl phosphonates. Org Biomol Chem 2015; 13:1317-21. [DOI: 10.1039/c4ob02317j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the highly stereoselective addition of lithiated difluorophosphonates to nitroglycals, providing synthetic access to biologically relevant fluorinated aminoglycosyl phosphonates.
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Affiliation(s)
- Sanne Bouwman
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules
- Medicines and Systems (AIMMS)
- VU University Amsterdam
- 1081 HV Amsterdam
- The Netherlands
| | - Romano V. A. Orru
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules
- Medicines and Systems (AIMMS)
- VU University Amsterdam
- 1081 HV Amsterdam
- The Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules
- Medicines and Systems (AIMMS)
- VU University Amsterdam
- 1081 HV Amsterdam
- The Netherlands
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