1
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Kabi AK, Pal M, Gujjarappa R, Malakar CC, Roy M. Overview of Hydroxychloroquine and Remdesivir on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). J Heterocycl Chem 2022; 60:JHET4541. [PMID: 35942205 PMCID: PMC9349740 DOI: 10.1002/jhet.4541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 11/08/2022]
Abstract
The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused the ongoing pandemic named COVID-19 which causes a serious emergency on public health hazards of international concern. In the face of a critical medical emergency, repositioning of drugs is one of the most authentic options to design an adequate treatment for infected patients immediately. In this strategy, Remdesivir (Veklury), Hydroxychloroquine appears to be the drug of choice and garnered unprecedented attention as potential therapeutic agents against the pandemic realized worldwide due to SARS-CoV-2 infection. These are the breathtaking instances of possible repositioning of drugs, whose pharmacokinetics and optimal dosage are familiar. In this review, we provide an overview of these medications, their synthesis, and the possible mechanism of action against SARS-CoV-2.
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Affiliation(s)
- Arup K. Kabi
- Department of ChemistryNational Institute of Technology ManipurImphalManipurIndia
| | - Maynak Pal
- Department of ChemistryNational Institute of Technology ManipurImphalManipurIndia
| | - Raghuram Gujjarappa
- Department of ChemistryNational Institute of Technology ManipurImphalManipurIndia
| | - Chandi C. Malakar
- Department of ChemistryNational Institute of Technology ManipurImphalManipurIndia
| | - Mithun Roy
- Department of ChemistryNational Institute of Technology ManipurImphalManipurIndia
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2
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Bhilare NV, Marulkar VS, Kumar D, Chatap VK, Patil KS, Shirote PJ. An insight into prodrug strategy for the treatment of Alzheimer’s disease. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02859-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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3
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Kucharski DJ, Jaszczak MK, Boratyński PJ. A Review of Modifications of Quinoline Antimalarials: Mefloquine and (hydroxy)Chloroquine. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27031003. [PMID: 35164267 PMCID: PMC8838516 DOI: 10.3390/molecules27031003] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 11/16/2022]
Abstract
Late-stage modification of drug molecules is a fast method to introduce diversity into the already biologically active scaffold. A notable number of analogs of mefloquine, chloroquine, and hydroxychloroquine have been synthesized, starting from the readily available active pharmaceutical ingredient (API). In the current review, all the modifications sites and reactivity types are summarized and provide insight into the chemistry of these molecules. The approaches include the introduction of simple groups and functionalities. Coupling to other drugs, polymers, or carriers afforded hybrid compounds or conjugates with either easily hydrolyzable or more chemically inert bonds. The utility of some of the compounds was tested in antiprotozoal, antibacterial, and antiproliferative assays, as well as in enantiodifferentiation experiments.
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4
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Nagar H, Ingle D, Munagala CK, Kesari AK, Aniya V. Thermodynamic properties of active pharmaceutical ingredients that are of interest in COVID-19. CHEMICAL DATA COLLECTIONS 2022. [PMCID: PMC8697427 DOI: 10.1016/j.cdc.2021.100820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The pure component properties are estimated for active pharmaceutical ingredients that are related or proposed for the treatment of severe acute respiratory syndrome-CoronaVirus-2. These include Baricitinib, Camostat, Chloroquine, Dexamethasone, Hydroxychloroquine, Fingolimod, Favipiravir, Thalidomide, and Umifenovir. The estimations are based on group contribution+ (GC) models that contain combined group contribution and atom connectivity index with uncertainties in the estimated property values. The thermodynamic properties that are reported include boiling point, critical temperature, critical pressure, critical volume, melting point, standard Gibb's energy of formation, standard enthalpy of formation, enthalpy of fusion, enthalpy of vaporization at 298 K, enthalpy of vaporization at boiling point, entropy of vaporization at boiling point, flash point, Hildebrand solubility parameter, octanol/water partition coefficient, acentric factor, and liquid molar volume at 298 K. The reported properties are not available in the literature and thereby is an incremental development for reliable process engineering.
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5
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Bhilare NV, Marulkar VS, Shirote PJ, Dombe SA, Pise VJ, Salve PL, Biradar SM, Yadav VD, Jadhav PD, Bodhe AA, Borkar SP, Ghadge PM, Shelar PA, Jadhav AV, Godse KC. Mannich Bases: Centrality in Cytotoxic Drug Design. Med Chem 2021; 18:735-756. [PMID: 34931967 DOI: 10.2174/1573406418666211220124119] [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: 08/09/2021] [Revised: 10/04/2021] [Accepted: 10/18/2021] [Indexed: 11/22/2022]
Abstract
Mannich bases identified by Professor Carl Mannich have been the most extensively explored scaffolds for more than 100 years now. The versatile biological roles that they play have promoted their applications in many clinical conditions. The present review highlights the application of Mannich bases as cytotoxic agents, categorizing them into synthetic, semisynthetic and prodrugs classes and gives an exhaustive account of the work reported in the last two decades. The methods of synthesis of these cytotoxic agents, their anti-cancer potential in various cell lines and promising leads for future drug development have also been discussed. Structure-activity relationships along with the targets on which these cytotoxic Mannich bases act have been included as well.
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Affiliation(s)
- Neha V Bhilare
- Department of Pharmaceutical Chemistry, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Vinayak S Marulkar
- Department of Pharmaceutical Chemistry, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Pramodkumar J Shirote
- Department of Pharmaceutical Chemistry, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Shailaja A Dombe
- Department of Pharmaceutics, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Vilas J Pise
- Department of Pharmaceutical Chemistry, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Pallavi L Salve
- Department of Pharmaceutical Chemistry, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Shantakumar M Biradar
- Department of Pharmaceutical Chemistry, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Vishal D Yadav
- Department of Pharmaceutics, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Prakash D Jadhav
- Department of Pharmaceutics, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Anjali A Bodhe
- Department of Pharmaceutics, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Smita P Borkar
- Department of Pharmaceutics, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Prachi M Ghadge
- Department of Pharmacology, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Pournima A Shelar
- Department of Pharmaceutics, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Apurva V Jadhav
- Department of Pharmaceutics, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
| | - Kirti C Godse
- Department of Pharmacology, Arvind Gavali College of Pharmacy, Satara-415004, Maharashtra, India
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6
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Bilgin ZD, Evcil I, Yazgi D, Binay G, Okuyucu Genc C, Gulsen B, Huseynova A, Ozdemir AZ, Ozmen E, Usta Y, Ustun S, Caglar Andac S. Liquid Chromatographic Methods for COVID-19 Drugs, Hydroxychloroquine and Chloroquine. J Chromatogr Sci 2021; 59:748-757. [PMID: 33336246 PMCID: PMC7799265 DOI: 10.1093/chromsci/bmaa110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/14/2020] [Accepted: 10/31/2020] [Indexed: 01/25/2023]
Abstract
COVID-19 has been a threat throughout the world since December 2019. In attempts to discover an urgent treatment regime for COVID-19, hydroxychloroquine (HCQ) and chloroquine (CQ) have been on solidarity clinical trial. However, many countries have pulled HCQ and CQ from their COVID-19 treatment regimens recently, some countries still continue using them for patients who have previously started HCQ and CQ and they may complete their course under the supervision of a doctor. HCQ and CQ are 4-aminoquinoline drugs and it is safe to use them for autoimmune diseases, rheumatoid arthritis, systemic lupus erythematosus and malaria as well. Determination of CQ, HCQ and their metabolites in biologic fluids and in pharmaceuticals has great importance, especially for pharmacokinetics, pharmacodynamics and epidemiological studies. In this review, liquid chromatographic methods developed in the last 10 years were summarized focusing on sample preparation and detection methods for HCQ and CQ determination in biological fluids and pharmaceutical preparations. It is hoped that this article could be helpful to facilitate the use of these drugs in clinical trials or drug research studies as it provides comprehensive information on the reported analytical methods.
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Affiliation(s)
- Zeynep Derya Bilgin
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Isil Evcil
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Didem Yazgi
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Gokce Binay
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Ceren Okuyucu Genc
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Busra Gulsen
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Aytaj Huseynova
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Ayse Zehra Ozdemir
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Emel Ozmen
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Yakup Usta
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Suade Ustun
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
| | - Sena Caglar Andac
- Department of Analytical Chemistry, Faculty of Pharmacy, Istanbul University, Suleymaniye, 7-1, 34116 Fatih/Istanbul, Turkey
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7
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Khandazhinskaya AL, Mercurio V, Maslova AA, Ñahui Palomino RA, Novikov MS, Matyugina ES, Paramonova MP, Kukhanova MK, Fedorova NE, Yurlov KI, Kushch AA, Tarasova O, Margolis L, Kochetkov SN, Vanpouille C. Dual-targeted anti-CMV/anti-HIV-1 heterodimers. Biochimie 2021; 189:169-180. [PMID: 34197866 DOI: 10.1016/j.biochi.2021.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/22/2021] [Accepted: 06/24/2021] [Indexed: 10/21/2022]
Abstract
Despite the development of efficient anti-human immunodeficiency virus-1 (HIV-1) therapy, HIV-1 associated pathogens remain a major clinical problem. Human cytomegalovirus (CMV) is among the most common HIV-1 copathogens and one of the main causes of persistent immune activation associated with dysregulation of the immune system, cerebrovascular and cardiovascular pathologies, and premature aging. Here, we report on the development of dual-targeted drugs with activity against both HIV-1 and CMV. We synthesized seven compounds that constitute conjugates of molecules that suppress both pathogens. We showed that all seven compounds exhibit low cytotoxicity and efficiently inhibited both viruses in cell lines. Furthermore, we chose a representative compound and demonstrated that it efficiently suppressed replication of HIV-1 and CMV in human lymphoid tissue ex vivo coinfected with both viruses. Further development of such compounds may lead to the development of dual-targeted anti-CMV/HIV-1 drugs.
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Affiliation(s)
| | - Vincenzo Mercurio
- Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Anna A Maslova
- Engelhardt Institute of Molecular Biology, Vavilova Str., 32, Moscow, 119991, Russia
| | - Rogers Alberto Ñahui Palomino
- Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Mikhail S Novikov
- Department of Pharmaceutical & Toxicological Chemistry, Volgograd State Medical University, Pavshikh Bortsov Sq., 1, Volgograd, 400131, Russia
| | - Elena S Matyugina
- Engelhardt Institute of Molecular Biology, Vavilova Str., 32, Moscow, 119991, Russia
| | - Maria P Paramonova
- Department of Pharmaceutical & Toxicological Chemistry, Volgograd State Medical University, Pavshikh Bortsov Sq., 1, Volgograd, 400131, Russia
| | - Marina K Kukhanova
- Engelhardt Institute of Molecular Biology, Vavilova Str., 32, Moscow, 119991, Russia
| | - Natalya E Fedorova
- Ivanovsky Institute of Virology, Gamaleya National Research Center of Epidemiology and Microbiology, Gamaleya Str., 16, Moscow, 123098, Russia
| | - Kirill I Yurlov
- Ivanovsky Institute of Virology, Gamaleya National Research Center of Epidemiology and Microbiology, Gamaleya Str., 16, Moscow, 123098, Russia
| | - Alla A Kushch
- Ivanovsky Institute of Virology, Gamaleya National Research Center of Epidemiology and Microbiology, Gamaleya Str., 16, Moscow, 123098, Russia
| | - Olga Tarasova
- Institute of Biomedical Chemistry, Pogodinskaya Str., 10, Moscow, 119121, Russia
| | - Leonid Margolis
- Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Sergey N Kochetkov
- Engelhardt Institute of Molecular Biology, Vavilova Str., 32, Moscow, 119991, Russia
| | - Christophe Vanpouille
- Eunice Kennedy-Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA.
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8
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Jain A, Prajapati SK, Tripathi M, Raichur AM, Kanwar JR. Exploring the room for repurposed hydroxychloroquine to impede COVID-19: toxicities and multipronged combination approaches with pharmaceutical insights. Expert Rev Clin Pharmacol 2021; 14:715-734. [PMID: 33769888 DOI: 10.1080/17512433.2021.1909473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Introduction: SARS-CoV-2 has fatally affected the whole world with millions of deaths. Amidst the dilemma of a breakthrough in vaccine development, hydroxychloroquine (HCQ) was looked upon as a prospective repurposed candidate. It has confronted numerous controversies in the past few months as a chemoprophylactic and treatment option for COVID-19. Recently, it has been withdrawn by the World Health Organization for its use in an ongoing pandemic. However, its benefit/risk ratio regarding its use in COVID-19 disease remains poorly justified. An extensive literature search was done using Scopus, PubMed, Google Scholar, www.cdc.gov, www.fda.gov, and who.int.Areas covered: Toxicity vexations of HCQ; pharmaceutical perspectives on new advances in drug delivery approaches; computational modeling (PBPK and PD modeling) overtures; multipronged combination approaches for enhanced synergism with antiviral and anti-inflammatory agents; immuno-boosting effects.Expert commentary: Harnessing the multipronged pharmaceutical perspectives will optimistically help the researchers, scientists, biotech, and pharmaceutical companies to bring new horizons in the safe and efficacious utilization of HCQ alone or in combination with remdesivir and immunomodulatory molecules like bovine lactoferrin in a fight against COVID-19. Combinational therapies with free forms or nanomedicine based targeted approaches can act synergistically to boost host immunity and stop SARS-CoV-2 replication and invasion to impede the infection.
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Affiliation(s)
- Ankit Jain
- Department of Materials Engineering, Indian Institute of Science, Bangalore - Karnataka, India
| | - Shiv Kumar Prajapati
- Department of Pharmaceutical Sciences, Ram-Eesh Institute of Vocational and Technical Education, Greater Noida, Uttar Pradesh, India
| | - Madhavi Tripathi
- Department of Materials Engineering, Indian Institute of Science, Bangalore - Karnataka, India
| | - Ashok M Raichur
- Department of Materials Engineering, Indian Institute of Science, Bangalore - Karnataka, India
| | - Jagat R Kanwar
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Bhopal, Madhya Pradesh, India
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9
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Alves da Silva AE, de Abreu PMB, Geraldes DC, de Oliveira Nascimento L. Hydroxychloroquine: Pharmacological, physicochemical aspects and activity enhancement through experimental formulations. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Hernandes IS, Da Silva HC, Dos Santos HF, De Almeida WB. Unveiling the Molecular Structure of Antimalarial Drugs Chloroquine and Hydroxychloroquine in Solution through Analysis of 1H NMR Chemical Shifts. J Phys Chem B 2021; 125:3321-3342. [PMID: 33760611 DOI: 10.1021/acs.jpcb.1c00609] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chloroquine (CQ) and hydroxychloroquine (HCQ) have been standard antimalarial drugs since the early 1950s, and very recently, the possibility of their use for the treatment of COVID-19 patients has been considered. To understand the drug mode of action at the submicroscopic level (atoms and molecules), molecular modeling studies with the aid of computational chemistry methods have been of great help. A fundamental step in such theoretical investigations is the knowledge of the predominant drug molecular structure in solution, which is the real environment for the interaction with biological targets. Our strategy to access this valuable information is to perform density functional theory (DFT) calculations of 1H NMR chemical shifts for several plausible molecular conformers and then find the best match with experimental NMR profile in solution (since it is extremely sensitive to conformational changes). Through this procedure, after optimizing 30 trial distinct molecular structures (ωB97x-D/6-31G(d,p)-PCM level of calculation), which may be considered representative conformations, we concluded that the global minimum (named M24), stabilized by an intramolecular N-H hydrogen bond, is not likely to be observed in water, chloroform, and dimethyl sulfoxide (DMSO) solution. Among fully optimized conformations (named M1 to M30, and MD1 and MD2), we found M12 (having no intramolecular H-bond) as the most probable structure of CQ and HCQ in water solution, which is a good approximate starting geometry in drug-receptor interaction simulations. On the other hand, the preferred CQ and HCQ structure in chloroform (and CQ in DMSO-d6) solution was assigned as M8, showing the solvent effects on conformational preferences. We believe that the analysis of 1H NMR data in solution can establish the connection between the macro level (experimental) and the sub-micro level (theoretical), which is not so apparent to us and appears to be more appropriate than the thermodynamic stability criterion in conformational analysis studies.
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Affiliation(s)
- Isabel S Hernandes
- Laboratório de Química Computacional e Modelagem Molecular (LQC-MM), Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense (UFF), Outeiro de São João Batista s/n, Campus do Valonguinho, Centro, Niterói 24020-141, Rio de Janeiro, Brazil
| | - Haroldo C Da Silva
- Laboratório de Química Computacional e Modelagem Molecular (LQC-MM), Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense (UFF), Outeiro de São João Batista s/n, Campus do Valonguinho, Centro, Niterói 24020-141, Rio de Janeiro, Brazil
| | - Hélio F Dos Santos
- Núcleo de Estudos em Química Computacional (NEQC), Departamento de Química, ICE, Universidade Federal de Juiz de Fora (UFJF), Campus Universitário, Martelos, Juiz de Fora 36036-330, Minas Gerais, Brazil
| | - Wagner B De Almeida
- Laboratório de Química Computacional e Modelagem Molecular (LQC-MM), Departamento de Química Inorgânica, Instituto de Química, Universidade Federal Fluminense (UFF), Outeiro de São João Batista s/n, Campus do Valonguinho, Centro, Niterói 24020-141, Rio de Janeiro, Brazil
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11
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ÜN H, UGAN RA. Floretin ve floridzin'in farelerde indometazine bağlı gelişen mide ülserine karşı koruyucu etkileri: potansiyel moleküler mekanizmaların karakterizasyonu. CUKUROVA MEDICAL JOURNAL 2020. [DOI: 10.17826/cumj.734911] [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] Open
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12
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Thakur S, Riyaz B, Patil A, Kaur A, Kapoor B, Mishra V. Novel drug delivery systems for NSAIDs in management of rheumatoid arthritis: An overview. Biomed Pharmacother 2018; 106:1011-1023. [DOI: 10.1016/j.biopha.2018.07.027] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 07/05/2018] [Accepted: 07/05/2018] [Indexed: 12/21/2022] Open
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13
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Wang L, Neumann H, Beller M. A General, Activator-Free Palladium-Catalyzed Synthesis of Arylacetic and Benzoic Acids from Formic Acid. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802384] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lin Wang
- Leibniz-Institut für Katalyse an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Helfried Neumann
- Leibniz-Institut für Katalyse an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
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14
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Wang L, Neumann H, Beller M. A General, Activator-Free Palladium-Catalyzed Synthesis of Arylacetic and Benzoic Acids from Formic Acid. Angew Chem Int Ed Engl 2018; 57:6910-6914. [DOI: 10.1002/anie.201802384] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Lin Wang
- Leibniz-Institut für Katalyse an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Helfried Neumann
- Leibniz-Institut für Katalyse an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse an der; Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
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15
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Enhancement of brain-targeting delivery of danshensu in rat through conjugation with pyrazine moiety to form danshensu-pyrazine ester. Drug Deliv Transl Res 2018. [PMID: 29524164 DOI: 10.1007/s13346-018-0501-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Tetramethylpyrazine was introduced to the structure of danshensu (DSS) as P-glycoprotein (P-gp)-inhibiting carrier, designing some novel brain-targeting DSS-pyrazine derivatives via prodrug delivery strategy. Following the virtual screening, three DSS-pyrazine esters (DT1, DT2, DT3) were selected because of their better prediction parameters related to brain-targeting. Among them, DT3 was thought to be a promising candidate due to its appropriate bioreversible property in vitro release assay. Further investigation with regard to DT3's brain-targeting effects in vivo was also reported in this study. High-performance liquid chromatography-diode array detection (HPLC-DAD) method was established for the quantitative determination of DT3 and DSS in rat plasma, brain homogenate after intravenous injection. In vivo metabolism of DT3 indicated that it was first converted into DT1, DT2, then the generation of DSS, which could be the result of carboxylesterase activity in rat blood and brain tissue. Moreover, the brain pharmacokinetics of DT3 was significantly altered with 2.16 times increase in half-life compared with that of DSS, and its drug targeting index (DTI) was up to 16.95. Above these data demonstrated that DT3 had better tendency of brain-targeting delivery, which would be positive for the treatment of brain-related disorders.
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16
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Yu E, Mangunuru HPR, Telang NS, Kong CJ, Verghese J, Gilliland Iii SE, Ahmad S, Dominey RN, Gupton BF. High-yielding continuous-flow synthesis of antimalarial drug hydroxychloroquine. Beilstein J Org Chem 2018; 14:583-592. [PMID: 29623120 PMCID: PMC5852550 DOI: 10.3762/bjoc.14.45] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 02/14/2018] [Indexed: 11/23/2022] Open
Abstract
Numerous synthetic methods for the continuous preparation of fine chemicals and active pharmaceutical ingredients (API’s) have been reported in recent years resulting in a dramatic improvement in process efficiencies. Herein we report a highly efficient continuous synthesis of the antimalarial drug hydroxychloroquine (HCQ). Key improvements in the new process include the elimination of protecting groups with an overall yield improvement of 52% over the current commercial process. The continuous process employs a combination of packed bed reactors with continuous stirred tank reactors for the direct conversion of the starting materials to the product. This high-yielding, multigram-scale continuous synthesis provides an opportunity to achieve increase global access to hydroxychloroquine for treatment of malaria.
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Affiliation(s)
- Eric Yu
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - Hari P R Mangunuru
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - Nakul S Telang
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - Caleb J Kong
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - Jenson Verghese
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - Stanley E Gilliland Iii
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - Saeed Ahmad
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - Raymond N Dominey
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
| | - B Frank Gupton
- Department of Chemistry and Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 W. Main St., Richmond, VA 23220, USA
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