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Kirubakaran S, Sureshkumar D, Chandrasekaran S. Tetrathiomolybdate and Tetraselenotungstate as Sulfur/Selenium Transfer Reagents: Applications in the Synthesis of New Thio/Seleno Sugars. CHEM REC 2021; 21:3076-3086. [PMID: 34145726 DOI: 10.1002/tcr.202100097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/01/2021] [Accepted: 05/31/2021] [Indexed: 11/11/2022]
Abstract
Sulfur and selenium containing sugars have gained prominence in the last two decades because of their importance in several biological applications. These type of carbohydrate scaffolds are also challenging targets for synthesis. In this personal note, we have summarised the results of our investigation over the last 20 years on the use of two reagents, benzyltriethylammonium tetrathiomolybdate and tetraethylammonium tetraselenotungstate, in efficient transfer of sulfur and selenium respectively to the synthesis of a number of carbohydrate derivatives.
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Affiliation(s)
- Sivapriya Kirubakaran
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, 382355, Gujarat, India
| | - Devarajulu Sureshkumar
- Department of Chemistry, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, West Bengal, India
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Bakthadoss M, Mushaf M. Intramolecular [3 + 2] nitrone cycloaddition reaction: highly regio and diastereoselective synthesis of bicyclo[3.2.1]octane scaffolds. Org Biomol Chem 2020; 18:9653-9659. [PMID: 33211791 DOI: 10.1039/d0ob01960g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A regio and diastereoselective strategy has been developed for the synthesis of complex bicyclo[3.2.1]octane scaffolds from the reaction of readily accessible vinylogous carbonates with N-substituted hydroxylamine hydrochlorides via intramolecular 1,3-dipolar nitrone cycloaddition reaction. Wide varieties of bicyclic isoxazolidines were synthesized in high yields under catalyst free conditions through a highly efficient and operationally simple protocol.
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Affiliation(s)
- Manickam Bakthadoss
- Department of Chemistry, Pondicherry University, Pondicherry - 605 014, India.
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3
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Total Synthesis of Natural Disaccharide Sambubiose. Pharmaceuticals (Basel) 2020; 13:ph13080198. [PMID: 32824527 PMCID: PMC7465796 DOI: 10.3390/ph13080198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 02/01/2023] Open
Abstract
A practical and robust synthetic method to obtain the natural disaccharide sambubiose (2-O-β-D-xylopyranosyl-D-glucopyranose) is reported, exploring the key step in the synthesis, i.e., stereoselective O-glycosylation. Specifically, the best combinations of glycoside donors and acceptors were identified, stereospecific control of the reaction was achieved by screening several catalysts and protection/deprotection steps were evaluated and improved. The best result was obtained by coupling allyl 3,5,6-tri-O-benzyl-β-D-glucofuranoside with 2,3,4-tri-O-acetyl-D-xylopiranosyl-α-trichloro acetimidate in the presence of trimethylsilyl triflate as a catalyst giving the corresponding protected target compound as a correct single isomer. The latter was transformed accordingly into the desired final product by deprotection steps (deallylation, deacetylation, and debenzylation). Sambubiose was synthesized into a satisfactory and higher overall yield than previously reported and was also characterized.
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Elgemeie GH, Mohamed RA. Microwave chemistry: Synthesis of purine and pyrimidine nucleosides using microwave radiation. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2018.1543430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Galal H. Elgemeie
- Chemistry Department, Faculty of Science, Helwan University, Helwan, Cairo, Egypt
| | - Reham A. Mohamed
- Chemistry of Natural and Microbial Products Department, National Research Center, Dokki, Cairo, Egypt
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Palit S, Mukherjee S, Niyogi S, Banerjee A, Patra D, Chakraborty A, Chakrabarti S, Chakrabarti P, Dutta S. Quinoline-Glycomimetic Conjugates Reducing Lipogenesis and Lipid Accumulation in Hepatocytes. Chembiochem 2018; 19:1720-1726. [PMID: 29897151 DOI: 10.1002/cbic.201800271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Indexed: 01/23/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD), which is characterized by excess accumulation of triglyceride in hepatocytes, is the major cause of chronic liver disease worldwide and no approved drug is available. The mechanistic target of rapamycin (mTOR) complexes has been implicated in promoting lipogenesis and fat accumulation in the liver, and thus, serve as attractive drug targets. The generation of non- or low cytotoxic mTOR inhibitors is required because existing cytotoxic mTOR inhibitors are not useful for NAFLD therapy. New compounds based on the privileged adenosine triphosphate (ATP) site binder quinoline scaffold conjugated to glucose and galactosamine derivatives, which have significantly low cytotoxicity, but strong mTORC1 inhibitory activity at low micromolar concentrations, have been synthesized. These compounds also effectively inhibit the rate of lipogenesis and lipid accumulation in cultured hepatocytes. This is the first report of glycomimetic-quinoline derivatives that reduce lipid load in hepatocytes.
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Affiliation(s)
- Subhadeep Palit
- Indian Institute of Chemical Biology CSIR, Organic and Medicinal Chemistry, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Sanghamitra Mukherjee
- Indian Institute of Chemical Biology CSIR, Organic and Medicinal Chemistry, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Sougata Niyogi
- Indian Institute of Chemical Biology CSIR, Cell Biology and Physiology, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Anindyajit Banerjee
- Indian Institute of Chemical Biology CSIR, Structural Biology and Bioinformatics, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Dipendu Patra
- Indian Institute of Chemical Biology CSIR, Organic and Medicinal Chemistry, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Amit Chakraborty
- Indian Institute of Chemical Biology CSIR, Organic and Medicinal Chemistry, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Saikat Chakrabarti
- Indian Institute of Chemical Biology CSIR, Structural Biology and Bioinformatics, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Partha Chakrabarti
- Indian Institute of Chemical Biology CSIR, Cell Biology and Physiology, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Sanjay Dutta
- Indian Institute of Chemical Biology CSIR, Organic and Medicinal Chemistry, 4, Raja S.C Mullick Road, Jadavpur, Kolkata, West Bengal, 700032, India
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Saruengkhanphasit R, Collier D, Coldham I. Synthesis of Spirocyclic Amines by Using Dipolar Cycloadditions of Nitrones. J Org Chem 2017; 82:6489-6496. [DOI: 10.1021/acs.joc.7b00959] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
| | - Darren Collier
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | - Iain Coldham
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
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Berthet M, Cheviet T, Dujardin G, Parrot I, Martinez J. Isoxazolidine: A Privileged Scaffold for Organic and Medicinal Chemistry. Chem Rev 2016; 116:15235-15283. [PMID: 27981833 DOI: 10.1021/acs.chemrev.6b00543] [Citation(s) in RCA: 169] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The isoxazolidine ring represents one of the privileged structures in medicinal chemistry, and there have been an increasing number of studies on isoxazolidine and isoxazolidine-containing compounds. Optimization of the 1,3-dipolar cycloaddition (1,3-DC), original methods including electrophilic or palladium-mediated cyclization of unsaturated hydroxylamine, has been developed to obtain isoxazolidines. Novel reactions involving the isoxazolidine ring have been highlighted to accomplish total synthesis or to obtain bioactive compounds, one of the most significant examples being probably the thermic ring contraction applied to the total synthesis of (±)-Gelsemoxonine. The unique isoxazolidine scaffold also exhibits an impressive potential as a mimic of nucleosides, carbohydrates, PNA, amino acids, and steroid analogs. This review aims to be a comprehensive and general summary of the different isoxazolidine syntheses, their use as starting building blocks for the preparation of natural compounds, and their main biological activities.
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Affiliation(s)
- Mathéo Berthet
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Thomas Cheviet
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Gilles Dujardin
- Institut des Molécules et Matériaux du Mans , IMMM UMR 6283 CNRS, Université du Maine, UFR Sciences et Techniques, Avenue Olivier Messiaen, 72085 Le Mans, France
| | - Isabelle Parrot
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron , IBMM UMR-5247 CNRS, Université de Montpellier, ENSCM, CC17-03, Pl. E. Bataillon, 34095 Montpellier Cedex 5, France
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Arzel L, Dubreuil D, Dénès F, Silvestre V, Mathé-Allainmat M, Lebreton J. Synthesis of Ribonucleosidic Dimers with an Amide Linkage from d-Xylose. J Org Chem 2016; 81:10742-10758. [DOI: 10.1021/acs.joc.6b01822] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Laurence Arzel
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Didier Dubreuil
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Fabrice Dénès
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Virginie Silvestre
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Monique Mathé-Allainmat
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jacques Lebreton
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
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Xia R, Sun LP. The Convenient Synthesis of Unsaturated Nucleoside Analogues in Water under Microwave Irradiation. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2016; 35:76-82. [PMID: 26822490 DOI: 10.1080/15257770.2015.1114129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A convenient method for the regioselective synthesis of unsaturated nucleoside analogs in water under microwave irradiation was developed. All pyrimidine and purine nucleoside derivatives were exclusively alkylated at N1 and N9 respectively in good to excellent yields. In addition, this system could tolerate a broad range of functional groups, such as chloro, bromo, iodo, alkyl, amino, and hydroxyl groups. More importantly, the reaction scale could be enlarged to 50 mmol which made this route attractive for industrial application.
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Affiliation(s)
- Ran Xia
- a College of Chemistry and Chemical Engineering , Xinxiang City , Henan Province , P. R. China
| | - Li-Ping Sun
- b School of Life Science and Technology, Xinxiang University , Xinxiang City , Henan Province , P. R. China
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Meyer AG, Smith JA, Hyland C, Williams CC, Bissember AC, Nicholls TP. Seven-Membered Rings. PROGRESS IN HETEROCYCLIC CHEMISTRY 2016. [DOI: 10.1016/b978-0-08-100755-6.00016-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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