1
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Iqbal N, Ashraf MA, Gul AR, Bae J, Iqbal N, Park TJ, Cho EJ. Construction of a Pentacyclic Framework Enabled by Nickel Catalysis. Org Lett 2023; 25:647-652. [PMID: 36682059 DOI: 10.1021/acs.orglett.2c04228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We present a novel nickel-catalyzed reaction of indole-tethered 2-alkynylphenol esters with various (hetero)aryl boronic acids, resulting in the synthesis of diversely functionalized pentacyclic benzofurocyclohepta[b]indole derivatives. This unprecedented cascade reaction involves the arylative cyclization of alkynes, nucleophilic attack of the indole moiety on the oxonium ion intermediate, 1,2-alkyl group migration, and aromatization. The synthesized molecules exhibit exceptional cytotoxicity against multiple cancer cell lines while maintaining biocompatibility toward healthy cells.
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Affiliation(s)
- Naeem Iqbal
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Muhammad Awais Ashraf
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Anam Rana Gul
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jaehan Bae
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Naila Iqbal
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Tae Jung Park
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Eun Jin Cho
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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2
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Ghosh AK, Weber IT, Mitsuya H. Beyond darunavir: recent development of next generation HIV-1 protease inhibitors to combat drug resistance. Chem Commun (Camb) 2022; 58:11762-11782. [PMID: 36200462 PMCID: PMC10942761 DOI: 10.1039/d2cc04541a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
We report our recent development of a conceptually new generation of exceptionally potent non-peptidic HIV-1 protease inhibitors that displayed excellent pharmacological and drug-resistance profiles. Our X-ray structural studies of darunavir and other designed inhibitors from our laboratories led us to create a variety of inhibitors incorporating fused ring polycyclic ethers and aromatic heterocycles to promote hydrogen bonding interactions with the backbone atoms of HIV-1 protease as well as van der Waals interactions with residues in the S2 and S2' subsites. We have also incorporated specific functionalities to enhance van der Waals interactions in the S1 and S1' subsites. The combined effects of these structural templates are critical to the inhibitors' exceptional potency and drug-like properties. We highlight here our molecular design strategies to promote backbone hydrogen bonding interactions to combat drug-resistance and specific design of polycyclic ether templates to mimic peptide-like bonds in the HIV-1 protease active site. Our medicinal chemistry and drug development efforts led to the development of new generation inhibitors significantly improved over darunavir and displaying unprecedented antiviral activity against multidrug-resistant HIV-1 variants.
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Affiliation(s)
- Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA.
| | - Irene T Weber
- Departments of Biology and Chemistry, Molecular Basis of Disease, Georgia State University, Atlanta, GA 30303, USA
| | - Hiroaki Mitsuya
- Departments of Hematology and Infectious Diseases, Kumamoto University School of Medicine, Kumamoto 860-8556, Japan
- Experimental Retrovirology Section, HIV and AIDS Malignancy Branch, National Cancer Institute, Bethesda, MD 20892, USA
- Center for Clinical Sciences, National Center for Global Health and Medicine, Shinjuku, Tokyo 162-8655, Japan
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3
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Sorouri F, Emamgholipour Z, Keykhaee M, Najafi A, Firoozpour L, Sabzevari O, Sharifzadeh M, Foroumadi A, Khoobi M. The situation of small molecules targeting key proteins to combat SARS-CoV-2: Synthesis, metabolic pathway, mechanism of action, and potential therapeutic applications. Mini Rev Med Chem 2021; 22:273-311. [PMID: 33687881 DOI: 10.2174/1389557521666210308144302] [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] [Received: 09/08/2020] [Revised: 12/14/2020] [Accepted: 12/28/2020] [Indexed: 12/15/2022]
Abstract
Due to the global epidemic and high mortality of 2019 coronavirus disease (COVID-19), there is an immediate need to discover drugs that can help before a vaccine becomes available. Given that the process of producing new drugs is so long, the strategy of repurposing existing drugs is one of the promising options for the urgent treatment of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes COVID-19 disease. Although FDA has approved Remdesivir for the use in hospitalized adults and pediatric patients suffering from COVID-19, no fully effective and reliable drug has been yet identified worldwide to treat COVID-19 specifically. Thus, scientists are still trying to find antivirals specific to COVID-19. This work reviews the chemical structure, metabolic pathway, mechanism of action of existing drugs with potential therapeutic applications for COVID-19. Further, we summarized the molecular docking stimulation of the medications related to key protein targets. These already drugs could be developed for further clinical trials to supply suitable therapeutic options for patients suffering from COVID-19.
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Affiliation(s)
- Farzaneh Sorouri
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Science, Tehran. Iran
| | - Zahra Emamgholipour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Science, Tehran. Iran
| | - Maryam Keykhaee
- Department of Pharmaceutical Biomaterials, Faculty of Pharmacy, Tehran University of Medical Science, Tehran. Iran
| | - Alireza Najafi
- Department of Immunology, Faculty of Medicine, Iran University of Medical Sciences, Tehran. Iran
| | - Loghman Firoozpour
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Science, Tehran. Iran
| | - Omid Sabzevari
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran. Iran
| | - Mohammad Sharifzadeh
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Toxicology and Poisoning Research Centre, Tehran University of Medical Sciences, Tehran. Iran
| | - Alireza Foroumadi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Science, Tehran. Iran
| | - Mehdi Khoobi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Tehran University of Medical Science, Tehran. Iran
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4
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Argomedo LM, Barroso VM, Barreiro CS, Darbem MP, Ishida K, Stefani HA. Novel 2-Aryloxazoline Compounds Exhibit an Inhibitory Effect on Candida spp., Including Antifungal-Resistant Isolates. ACS Med Chem Lett 2020; 11:2470-2475. [PMID: 33335669 PMCID: PMC7734819 DOI: 10.1021/acsmedchemlett.0c00449] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 11/19/2020] [Indexed: 12/17/2022] Open
Abstract
Because of the increased resistance to currently available antifungals, fungal infections represent a significant challenge to human health. Herein, we report the synthesis of 2-aryloxazoline derivatives from the reaction between l-threonine and derivatives of salicylic or naphthoic acid. In total, 26 compounds were obtained and tested against species of Candida, Cryptococcus, and Aspergillus. We found that all of the compounds inhibited the growth of Candida species at low concentrations (<0.25 μg/mL) and exhibited reduced hemolytic and cytotoxic activities. Additionally, compounds 4i and 9i were especially effective against antifungal-resistant isolates and the emerging fungus Candida auris. However, the compounds were less active on Cryptococcus and Aspergillus. Because of the improved in vitro antifungal efficacy and attenuated cytotoxicity, these two 2-aryloxazolines obtained from salicylic and naphthoic acid derivatives, respectively, may be considered lead molecules for the development of novel antifungal drugs.
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Affiliation(s)
- Luis M.
Z. Argomedo
- Department
of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 580, Bl. 13, 05508-000 São Paulo,São Paulo, Brazil
| | - Vinicius M. Barroso
- Department
of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 1374, ICB II, Lab 150, 05508-000 São Paulo,São Paulo, Brazil
| | - Cristiane S. Barreiro
- Department
of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 580, Bl. 13, 05508-000 São Paulo,São Paulo, Brazil
| | - Mariana P. Darbem
- Department
of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 580, Bl. 13, 05508-000 São Paulo,São Paulo, Brazil
| | - Kelly Ishida
- Department
of Microbiology, Institute of Biomedical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 1374, ICB II, Lab 150, 05508-000 São Paulo,São Paulo, Brazil
- K.I.: email,
| | - Hélio A. Stefani
- Department
of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, Prof. Lineu Prestes Avenue, 580, Bl. 13, 05508-000 São Paulo,São Paulo, Brazil
- H.A.S,: email,
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5
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Liu S, Achou R, Boulanger C, Pawar G, Kumar N, Lusseau J, Robert F, Landais Y. Copper-catalyzed oxidative benzylic C(sp3)–H amination: direct synthesis of benzylic carbamates. Chem Commun (Camb) 2020; 56:13013-13016. [DOI: 10.1039/d0cc05226d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu(i)–diimine ligand combined with a N–F source allows the C–H abstraction and incorporation of a carbamate functional group in the hydrocarbons at the benzylic position.
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Affiliation(s)
- Shuai Liu
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
| | - Raphaël Achou
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
| | - Coline Boulanger
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
| | - Govind Pawar
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
| | - Nivesh Kumar
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
| | - Jonathan Lusseau
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
| | - Frédéric Robert
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
| | - Yannick Landais
- University of Bordeaux
- Institute of Molecular sciences (ISM)
- UMR-CNRS 5255
- Talence Cedex 33405
- France
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6
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Ghosh AK, Brindisi M. Nature Inspired Molecular Design: Stereoselective Synthesis of Bicyclic and Polycyclic Ethers for Potent HIV-1 Protease Inhibitors. ASIAN J ORG CHEM 2018; 7:1448-1466. [PMID: 31595212 PMCID: PMC6781882 DOI: 10.1002/ajoc.201800255] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Indexed: 12/14/2022]
Abstract
We have developed a conceptually new generation of non-peptidic HIV-1 protease inhibitors incorporating novel structural templates inspired by nature. This has resulted in protease inhibitors with exceptional potency and excellent pharmacological and drug-resistance profiles. The design of a stereochemically defined bis-tetrahydrofuran (bis-THF) scaffold followed by modifications to promote hydrogen bonding interactions with the backbone atoms of HIV-1 protease led to darunavir, the first clinically approved drug for treatment of drug resistant HIV. Subsequent X-ray crystal structure-based design efforts led us to create a range of exceptionally potent inhibitors incorporating other intriguing molecular templates possessing fused ring polycyclic ethers with multiple stereocenters. These structural templates are critical to inhibitors' exceptional potency and drug-like properties. Herein, we will highlight the synthetic strategies that provided access to these complex scaffolds in a stereoselective and optically active form, enabling our medicinal chemistry and drug development efforts.
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Affiliation(s)
- Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907 (USA)
| | - Margherita Brindisi
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907 (USA)
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7
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Ghosh AK, Brindisi M, Nyalapatla PR, Takayama J, Ella-Menye JR, Yashchuk S, Agniswamy J, Wang YF, Aoki M, Amano M, Weber IT, Mitsuya H. Design of novel HIV-1 protease inhibitors incorporating isophthalamide-derived P2-P3 ligands: Synthesis, biological evaluation and X-ray structural studies of inhibitor-HIV-1 protease complex. Bioorg Med Chem 2017; 25:5114-5127. [PMID: 28434781 PMCID: PMC5617771 DOI: 10.1016/j.bmc.2017.04.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/04/2017] [Indexed: 11/29/2022]
Abstract
Based upon molecular insights from the X-ray structures of inhibitor-bound HIV-1 protease complexes, we have designed a series of isophthalamide-derived inhibitors incorporating substituted pyrrolidines, piperidines and thiazolidines as P2-P3 ligands for specific interactions in the S2-S3 extended site. Compound 4b has shown an enzyme Ki of 0.025nM and antiviral IC50 of 69nM. An X-ray crystal structure of inhibitor 4b-HIV-1 protease complex was determined at 1.33Å resolution. We have also determined X-ray structure of 3b-bound HIV-1 protease at 1.27Å resolution. These structures revealed important molecular insight into the inhibitor-HIV-1 protease interactions in the active site.
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Affiliation(s)
- Arun K Ghosh
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA.
| | - Margherita Brindisi
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Prasanth R Nyalapatla
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Jun Takayama
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Jean-Rene Ella-Menye
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Sofiya Yashchuk
- Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Johnson Agniswamy
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Yuan-Fang Wang
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA
| | - Manabu Aoki
- Department of Hematology, Kumamoto University of Medicine, Kumamoto 860-8556, Japan; Department of Infectious Diseases, Kumamoto University of Medicine, Kumamoto 860-8556, Japan
| | - Masayuki Amano
- Department of Hematology, Kumamoto University of Medicine, Kumamoto 860-8556, Japan; Department of Infectious Diseases, Kumamoto University of Medicine, Kumamoto 860-8556, Japan
| | - Irene T Weber
- Department of Biology, Georgia State University, Atlanta, GA 30303, USA; Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
| | - Hiroaki Mitsuya
- Department of Hematology, Kumamoto University of Medicine, Kumamoto 860-8556, Japan; Department of Infectious Diseases, Kumamoto University of Medicine, Kumamoto 860-8556, Japan; Experimental Retrovirology Section, HIV and AIDS Malignancy Branch National Cancer Institute, Bethesda, MD 20892, USA; Department of Refractory Viral Infection, National Center for Global Health and Medicine Research Institute, Shinjuku, Tokyo 162-8655, Japan
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8
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Sherwood AM, Crowley RS, Paton KF, Biggerstaff A, Neuenswander B, Day VW, Kivell BM, Prisinzano TE. Addressing Structural Flexibility at the A-Ring on Salvinorin A: Discovery of a Potent Kappa-Opioid Agonist with Enhanced Metabolic Stability. J Med Chem 2017; 60:3866-3878. [PMID: 28376298 DOI: 10.1021/acs.jmedchem.7b00148] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Previous structure-activity studies on the neoclerodane diterpenoid salvinorin A have demonstrated the importance of the acetoxy functionality on the A-ring in its activity as a κ-opioid receptor agonist. Few studies have focused on understanding the role of conformation in these interactions. Herein we describe the synthesis and evaluation of both flexible and conformationally restricted compounds derived from salvinorin A. One such compound, spirobutyrolactone 14, was synthesized in a single step from salvinorin B and had similar potency and selectivity to salvinorin A (EC50 = 0.6 ± 0.2 nM at κ; >10000 nM at μ and δ). Microsomal stability studies demonstrated that 14 was more metabolically resistant than salvinorin A. Evaluation of analgesic and anti-inflammatory properties revealed similar in vivo effects between 14 and salvinorin A. To our knowledge, this study represents the first example of bioisosteric replacement of an acetate group by a spirobutyrolactone to produce a metabolically resistant derivative.
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Affiliation(s)
- Alexander M Sherwood
- Department of Medicinal Chemistry, School of Pharmacy, The University of Kansas , Lawrence, Kansas 66045, United States
| | - Rachel Saylor Crowley
- Department of Medicinal Chemistry, School of Pharmacy, The University of Kansas , Lawrence, Kansas 66045, United States
| | - Kelly F Paton
- School of Biological Sciences, Centre for Biodiscovery, Victoria University of Wellington , Wellington 6012, New Zealand
| | - Andrew Biggerstaff
- School of Biological Sciences, Centre for Biodiscovery, Victoria University of Wellington , Wellington 6012, New Zealand
| | - Benjamin Neuenswander
- Department of Medicinal Chemistry, School of Pharmacy, The University of Kansas , Lawrence, Kansas 66045, United States
| | - Victor W Day
- Department of Chemistry, The University of Kansas , Lawrence, Kansas 66045, United States
| | - Bronwyn M Kivell
- School of Biological Sciences, Centre for Biodiscovery, Victoria University of Wellington , Wellington 6012, New Zealand
| | - Thomas E Prisinzano
- Department of Medicinal Chemistry, School of Pharmacy, The University of Kansas , Lawrence, Kansas 66045, United States
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9
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Rajput JD, Bagul SD, Bendre RS. Design, synthesis, biological screenings and docking simulations of novel carvacrol and thymol derivatives containing acetohydrazone linkage. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2919-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Tan SH, Chuah TS, Chia PW. An Improved Protocol on the Synthesis of Thiazolo[3,2-a]pyrimidine Using Ultrasonic Probe Irradiation. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2016. [DOI: 10.5012/jkcs.2016.60.4.245] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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11
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Abstract
Viruses are major pathogenic agents causing a variety of serious diseases in humans, other animals, and plants. Drugs that combat viral infections are called antiviral drugs. There are no effective antiviral drugs for many viral infections. However, there are several drugs for influenza, a couple of drugs for herpesviruses, and some new antiviral drugs for treatment of HIV and hepatitis C infections. The arsenal of antivirals is complex. As of March 2014, it consists of approximately 50 drugs approved by the FDA, approximately half of which are directed against HIV. Antiviral drug creation strategies are focused on two different approaches: targeting the viruses themselves or targeting host cell factors. Direct virus-targeting antiviral drugs include attachment inhibitors, entry inhibitors, uncoating inhibitors, protease inhibitors, polymerase inhibitors, nucleoside and nucleotide reverse transcriptase inhibitors, nonnucleoside reverse-transcriptase inhibitors, and integrase inhibitors. Protease inhibitors (darunavir, atazanavir, and ritonavir), viral DNA polymerase inhibitors (acyclovir, valacyclovir, valganciclovir, and tenofovir), and an integrase inhibitor (raltegravir) are included in the list of Top 200 Drugs by sales for the 2010s.
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12
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Chalopin T, Jebali K, Gaulon-Nourry C, Dénès F, Lebreton J, Mathé-Allainmat M. Regioselective dihydropyran formation from 4-iodo-2,6-disubstituted tetrahydropyran derivatives using In(OAc)3/LiI system as the promoter. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Xiong W, Qi C, He H, Ouyang L, Zhang M, Jiang H. Base-Promoted Coupling of Carbon Dioxide, Amines, andN-Tosylhydrazones: A Novel and Versatile Approach to Carbamates. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410605] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Xiong W, Qi C, He H, Ouyang L, Zhang M, Jiang H. Base-promoted coupling of carbon dioxide, amines, and N-tosylhydrazones: a novel and versatile approach to carbamates. Angew Chem Int Ed Engl 2015; 54:3084-7. [PMID: 25620194 DOI: 10.1002/anie.201410605] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 12/07/2014] [Indexed: 11/10/2022]
Abstract
A base-promoted three-component coupling of carbon dioxide, amines, and N-tosylhydrazones has been developed. The reaction is suggested to proceed via a carbocation intermediate and constitutes an efficient and versatile approach for the synthesis of a wide range of organic carbamates. The advantages of this method include the use of readily available substrates, excellent functional group tolerance, wide substrate scope, and a facile work-up procedure.
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Affiliation(s)
- Wenfang Xiong
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640 (P.R. China)
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15
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Das S, Goswami RK. Stereoselective Total Synthesis of Marine Cyclodepsipeptide Calcaripeptides A–C. J Org Chem 2014; 79:9778-91. [DOI: 10.1021/jo5019798] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Sayantan Das
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
| | - Rajib Kumar Goswami
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
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16
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Chatterjee B, Bera S, Mondal D. Julia–Kocienski olefination: a key reaction for the synthesis of macrolides. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2013.09.027] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Pandey AK, Sharma R, Shivahare R, Arora A, Rastogi N, Gupta S, Chauhan PMS. Synthesis of Perspicamide A and Related Diverse Analogues: Their Bioevaluation as Potent Antileishmanial Agents. J Org Chem 2013; 78:1534-46. [DOI: 10.1021/jo3025626] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | | | | | | | - Neeraj Rastogi
- Centre of Biomedical Magnetic
Resonance (CBMR), Sanjay Gandhi Postgraduate Institute of Medical Sciences Campus, Lucknow 226014, India
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18
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19
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2010. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.02.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Singh R, Vince R. 2-Azabicyclo[2.2.1]hept-5-en-3-one: Chemical Profile of a Versatile Synthetic Building Block and its Impact on the Development of Therapeutics. Chem Rev 2012; 112:4642-86. [DOI: 10.1021/cr2004822] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Rohit Singh
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street Southeast,
Minneapolis, MN 55455, United States
| | - Robert Vince
- Center for Drug Design, Academic Health Center, University of Minnesota, 516 Delaware Street Southeast,
Minneapolis, MN 55455, United States
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21
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Ghosh AK, Nicponski DR. Cu(II)-catalyzed olefin migration and Prins cyclization: highly diastereoselective synthesis of substituted tetrahydropyrans. Org Lett 2011; 13:4328-31. [PMID: 21797234 DOI: 10.1021/ol2016675] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal-ligand complexes of Cu(OTf)(2) with an appropriate bisphosphine ligand have been shown to effectively catalyze the formation of substituted tetrahydropyrans via a sequential olefin migration and Prins-type cyclization. This methodology provides convenient access to a variety of functionalized tetrahydropyrans in excellent diastereoselectivities and good to excellent yields.
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Affiliation(s)
- Arun K Ghosh
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, Indiana 47907, USA.
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22
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Caretti I, Carter E, Fallis IA, Murphy DM, Van Doorslaer S. Interactions of an asymmetric amine with a non-C2 symmetric Cu–salen complex: An EPR/ENDOR and HYSCORE investigation. Phys Chem Chem Phys 2011; 13:20427-34. [DOI: 10.1039/c1cp22522g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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