1
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de Jesus IS, Trindade Gomes A, Sande I, Cunha S. Three-Component Synthesis of 1-Substituted 5-Aminotetrazoles Promoted by Bismuth Nitrate. J Org Chem 2024; 89:14279-14290. [PMID: 39269756 PMCID: PMC11459472 DOI: 10.1021/acs.joc.4c01727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/14/2024] [Accepted: 09/02/2024] [Indexed: 09/15/2024]
Abstract
A nontoxic bismuth-promoted multicomponent synthesis of 5-aminotetrazoles and bistetrazoles is reported. The reaction of phenyl isothiocyanate, NaN3, and amine (primary aliphatic, aromatic, and aliphatic diamine) promoted by Bi(NO3)3·5H2O under microwave heating affords good yields, short reaction times, simple workup, and purification without column chromatography. A set of diagnostic 1H NMR signals was identified as a guide for quickly elucidating the exclusive (or main) regioisomer formed, with the stronger electron donor group located at heterocyclic nitrogen 1. This regioselectivity is strongly dependent on the electronic density of the amine. It is opposite to that obtained by several thiourea desulfurization methods promoted by thiophilic metals and metal-free protocols.
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Affiliation(s)
- Iva S. de Jesus
- Instituto
de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Bahia 40170-115, Brazil
| | - Amenson Trindade Gomes
- Instituto
de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Bahia 40170-115, Brazil
| | - Igor Sande
- Instituto
de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Bahia 40170-115, Brazil
| | - Silvio Cunha
- Instituto
de Química, Universidade Federal da Bahia, Campus de Ondina, Salvador, Bahia 40170-115, Brazil
- Instituto
Nacional de Ciência e Tecnologia - INCT em Energia e Ambiente, Campus Ondina, Salvador, Bahia 40170-290, Brazil
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2
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Li S, Yang L, Xu Q, Li X, Zhao J, Tan Z, Gu X, Qiu J. Exploration of 1-(indolin-1-yl)-2-(thiazol-2-yl)ethan-1-one derivatives as novel anti-HBV agent with potential TLR7-agonistic effect. Eur J Med Chem 2024; 275:116575. [PMID: 38865744 DOI: 10.1016/j.ejmech.2024.116575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 06/01/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
Hepatitis B virus (HBV) infection, as a serious global public health issue, is closely related to the immune dysfunction. Herein, thirty-seven 1-(indolin-1-yl)-2-(thiazol-4-yl)ethan-1-one derivatives were prepared as potential immunomodulatory anti-HBV agents. Anti-HBV activity evaluation confirmed compound 11a could significantly suppress the HBV DNA replication in both wild and resistant HBV stains, with IC50 values of 0.13 μM and 0.36 μM, respectively. Preliminary action mechanism studies showed that 11a had an inhibitory effect on cellular HBsAg secretion and could effectively activate TLR7, thereby inducing the secretion of TLR7-regulated cytokines IL-12, TNF-α and IFN-α in human PBMC cells. SPR analysis confirmed that 11a could bind to TLR7 protein with an affinity of 7.06 μM. MD simulation predicted that 11a could form tight interactions with residues in the binding pocket of TLR7. Physicochemical parameters perdition and pharmacokinetic analysis indicated that 11a displayed relatively favorable drug-like properties. Considering all the results, compound 11a might be a promising lead for developing novel immunomodulatory anti-HBV agents.
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Affiliation(s)
- Shuqiong Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China; Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Lihua Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Qiuting Xu
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Xincheng Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Jiangyan Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Zhoupeng Tan
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Xiaoke Gu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.
| | - Jingying Qiu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China; Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China.
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3
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Desenko SM, Gorobets MY, Lipson VV, Sakhno YI, Chebanov VA. Dihydroazolopyrimidines: Past, Present and Perspectives in Synthesis, Green Chemistry and Drug Discovery. CHEM REC 2024; 24:e202300244. [PMID: 37668291 DOI: 10.1002/tcr.202300244] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/22/2023] [Indexed: 09/06/2023]
Abstract
Dihydroazolopyrimidines are an important class of heterocycles that are isosteric to natural purines and are therefore of great interest primarily as drug-like molecules. In contrast to the heteroaromatic analogs, synthetic approaches to these compounds were developed much later, and their chemical properties and biological activity have not been studied in detail until recently. In the review, different ways to build dihydroazolopyrimidine systems from different building blocks are described - via the initial formation of a partially hydrogenated pyrimidine ring or an azole ring, as well as a one-pot assembly of azole and azine fragments. Special attention is given to modern approaches: multicomponent reactions, green chemistry, and the use of non-classical activation methods. Information on the chemical properties of dihydroazolopyrimidines and the prospects for their use in the design of drugs of various profiles are also summarized in this review.
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Affiliation(s)
- Serhiy M Desenko
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals" NAS of Ukraine, Nauky ave. 60, Kharkiv, Ukraine, 61072
| | - Mykola Yu Gorobets
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals" NAS of Ukraine, Nauky ave. 60, Kharkiv, Ukraine, 61072
| | - Victoria V Lipson
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals" NAS of Ukraine, Nauky ave. 60, Kharkiv, Ukraine, 61072
- Faculty of Chemistry, V.N. Karazin Kharkiv National University, Svobody sq. 4, Kharkiv, Ukraine, 61022
- Department of Medicinal Chemistry, State Institution "V. Ya. Danilevsky Institute for Endocrine Pathology Problems" NAMS of Ukraine, Alchevskikh St. 10, Kharkiv, Ukraine, 61002
| | - Yana I Sakhno
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals" NAS of Ukraine, Nauky ave. 60, Kharkiv, Ukraine, 61072
| | - Valentyn A Chebanov
- Department of Organic and Bioorganic Chemistry, State Scientific Institution "Institute for Single Crystals" NAS of Ukraine, Nauky ave. 60, Kharkiv, Ukraine, 61072
- Faculty of Chemistry, V.N. Karazin Kharkiv National University, Svobody sq. 4, Kharkiv, Ukraine, 61022
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Spasov AA, Fedorova OV, Rasputin NA, Ovchinnikova IG, Ishmetova RI, Ignatenko NK, Gorbunov EB, Sadykhov GAO, Kucheryavenko AF, Gaidukova KA, Sirotenko VS, Rusinov GL, Verbitskiy EV, Charushin VN. Novel Substituted Azoloazines with Anticoagulant Activity. Int J Mol Sci 2023; 24:15581. [PMID: 37958560 PMCID: PMC10648877 DOI: 10.3390/ijms242115581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Hypercytokinemia, or cytokine storm, often complicates the treatment of viral and bacterial infections, including COVID-19, leading to the risk of thrombosis. However, the use of currently available direct anticoagulants for the treatment of COVID-19 patients is limited due to safety reasons. Therefore, the development of new anticoagulants remains an urgent task for organic and medicinal chemistry. At the same time, new drugs that combine anticoagulant properties with antiviral or antidiabetic activity could be helpfull in the treatment of COVID-19 patients, especially those suffering from such concomitant diseases as arterial hypertension or diabetes. We have synthesized a number of novel substituted azoloazines, some of which have previously been identified as compounds with pronounced antiviral, antibacterial, antidiabetic, antiaggregant, and anticoagulant activity. Two compounds from the family of 1,2,4-triazolo[1,5-a]pyrimidines have demonstrated anticoagulant activity at a level exceeding or at least comparable with that of dabigatran etexilate as the reference compound. 7,5-Di(2-thienyl)-4,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine has shown the highest ability to prolong the thrombin time, surpassing this reference drug by 2.2 times. This compound has also exhibited anticoagulant activity associated with the inhibition of thrombin (factor IIa). Moreover, the anticoagulant effect of this substance becomes enhanced under the conditions of a systemic inflammatory reaction.
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Affiliation(s)
- Alexander A. Spasov
- Department of Pharmacology & Bioinformatics, Scientific Center for Innovative Drugs, Volgograd State Medical University, Volgograd 400131, Russia; (A.F.K.); (K.A.G.); (V.S.S.)
| | - Olga V. Fedorova
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
| | - Nikolay A. Rasputin
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
| | - Irina G. Ovchinnikova
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
| | - Rashida I. Ishmetova
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
| | - Nina K. Ignatenko
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
| | - Evgeny B. Gorbunov
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
| | - Gusein A. o. Sadykhov
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
- Department of Organic and Biomolecular Chemistry, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Ekaterinburg 620002, Russia
| | - Aida F. Kucheryavenko
- Department of Pharmacology & Bioinformatics, Scientific Center for Innovative Drugs, Volgograd State Medical University, Volgograd 400131, Russia; (A.F.K.); (K.A.G.); (V.S.S.)
| | - Kseniia A. Gaidukova
- Department of Pharmacology & Bioinformatics, Scientific Center for Innovative Drugs, Volgograd State Medical University, Volgograd 400131, Russia; (A.F.K.); (K.A.G.); (V.S.S.)
| | - Victor S. Sirotenko
- Department of Pharmacology & Bioinformatics, Scientific Center for Innovative Drugs, Volgograd State Medical University, Volgograd 400131, Russia; (A.F.K.); (K.A.G.); (V.S.S.)
| | - Gennady L. Rusinov
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
- Department of Technology & Organic Synthesis, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Ekaterinburg 620002, Russia
| | - Egor V. Verbitskiy
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
- Department of Organic and Biomolecular Chemistry, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Ekaterinburg 620002, Russia
| | - Valery N. Charushin
- I. Ya. Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620108, Russia; (O.V.F.); (I.G.O.); (R.I.I.); (N.K.I.); (E.B.G.); (G.A.o.S.); (G.L.R.); (E.V.V.); (V.N.C.)
- Department of Organic and Biomolecular Chemistry, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Ekaterinburg 620002, Russia
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5
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Abu N, Mohd Bakhori N, Shueb RH. Lateral Flow Assay for Hepatitis B Detection: A Review of Current and New Assays. MICROMACHINES 2023; 14:1239. [PMID: 37374824 DOI: 10.3390/mi14061239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023]
Abstract
From acute to chronic hepatitis, cirrhosis, and hepatocellular cancer, hepatitis B infection causes a broad spectrum of liver diseases. Molecular and serological tests have been used to diagnose hepatitis B-related illnesses. Due to technology limitations, it is challenging to identify hepatitis B infection cases at an early stage, particularly in a low- and middle-income country with constrained resources. Generally, the gold-standard methods to detect hepatitis B virus (HBV) infection requires dedicated personnel, bulky, expensive equipment and reagents, and long processing times which delay the diagnosis of HBV. Thus, lateral flow assay (LFA), which is inexpensive, straightforward, portable, and operates reliably, has dominated point-of-care diagnostics. LFA consists of four parts: a sample pad where samples are dropped; a conjugate pad where labeled tags and biomarker components are combined; a nitrocellulose membrane with test and control lines for target DNA-probe DNA hybridization or antigen-antibody interaction; and a wicking pad where waste is stored. By modifying the pre-treatment during the sample preparation process or enhancing the signal of the biomarker probes on the membrane pad, the accuracy of the LFA for qualitative and quantitative analysis can be improved. In this review, we assembled the most recent developments in LFA technologies for the progress of hepatitis B infection detection. Prospects for ongoing development in this area are also covered.
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Affiliation(s)
- Norhidayah Abu
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
- Advanced Materials Research Centre (AMREC), SIRIM Berhad, Lot 34, Jalan Hi-Tech 2/3, Kulim Hi-Tech Park, Kulim 09000, Kedah, Malaysia
| | - Noremylia Mohd Bakhori
- Advanced Materials Research Centre (AMREC), SIRIM Berhad, Lot 34, Jalan Hi-Tech 2/3, Kulim Hi-Tech Park, Kulim 09000, Kedah, Malaysia
| | - Rafidah Hanim Shueb
- Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
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6
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Mokariya JA, Rajani DP, Patel MP. 1,2,4‐Triazole and benzimidazole fused dihydropyrimidine derivatives: Design, green synthesis, antibacterial, antitubercular, and antimalarial activities. Arch Pharm (Weinheim) 2022; 356:e2200545. [PMID: 36534897 DOI: 10.1002/ardp.202200545] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022]
Abstract
This study reports the design and synthesis of novel 1,2,4-triazolo/benzimidazolo-pyrimidine linked 1-benzyl-4-[(p-tolyloxy)methyl]-1,2,3-triazole derivatives as potent antimicrobial agents according to their in vitro antibacterial, antifungal, antitubercular as well as antimalarial activities. An efficient, ecologically benign, and facile multicomponent synthesis was employed to synthesize these derivatives. The synthesis is accelerated with the mild and eco-friendly organocatalyst tetrabutylammonium bromide, providing a yield of 82%-96% within the short reaction time of 0.5-1.5 h. Compared with the MIC values of ciprofloxacin and ampicillin on the respective strains, compound d2 showed better activity against Escherichia coli and Streptococcus pyogenes and compound d8 showed better MIC against Staphylococcus aureus. Additionally, compounds d3, d4, and d5 showed potent MIC values against Pseudomonas aeruginosa. All triazolo-pyrimidine derivatives d1-d8 showed potent inhibitory action against Gram-positive strains. Compound e3 showed good potency against Mycobacterium tuberculosis H37Rv. The IC50 values of d3 and e2 indicated better activity against Plasmodium falciparum. Collectively, these derivatives depict potent multifaceted activity and provide promising access for further antimicrobial and antimalarial investigations.
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Affiliation(s)
| | - Dhanji P. Rajani
- Microcare Laboratory and Tuberculosis Research Centre, Haripura Surat Gujarat India
| | - Manish P. Patel
- Department of Chemistry Sardar Patel University Anand Gujarat India
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7
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Weng Y, Xu X, Chen H, Zhang Y, Zhuo X. Tandem Electrochemical Oxidative Azidation/Heterocyclization of Tryptophan‐Containing Peptides under Buffer Conditions. Angew Chem Int Ed Engl 2022; 61:e202206308. [DOI: 10.1002/anie.202206308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Yiyi Weng
- College of Pharmaceutical Sciences Zhejiang University of Technology 310014 Hangzhou P.R. China
| | - Xiaobin Xu
- College of Pharmaceutical Sciences Zhejiang University of Technology 310014 Hangzhou P.R. China
| | - Hantao Chen
- College of Pharmaceutical Sciences Zhejiang University of Technology 310014 Hangzhou P.R. China
| | - Yiyang Zhang
- College of Pharmaceutical Sciences Zhejiang University of Technology 310014 Hangzhou P.R. China
| | - Xianfeng Zhuo
- College of Pharmaceutical Sciences Zhejiang University of Technology 310014 Hangzhou P.R. China
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8
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Weng Y, Xu X, Chen H, Zhang Y, Zhuo X. Tandem Electrochemical Oxidative Azidation/Heterocyclization of Tryptophan‐Containing Peptides under Buffer Conditions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yiyi Weng
- Zhejiang University of Technology College of Pharmaceutical Science Chaowang road 18 310014 Hangzhou CHINA
| | - Xiaobin Xu
- Zhejiang University of Technology College of Pharmaceutical Sciences CHINA
| | - Hantao Chen
- Zhejiang University of Technology College of Pharmaceutical Sciences CHINA
| | - Yiyang Zhang
- Zhejiang University of Technology College of Pharmaceutical Sciences CHINA
| | - Xianfeng Zhuo
- Zhejiang University of Technology College of Pharmaceutical Sciences CHINA
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Zaki YH, El-Gendey MS, Fouad SA, Mohamed HS, Amer HH. Utility of Pyrimidine Thione Derivatives in the Synthesis of Biologically Active Heterocyclic Compounds. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2049324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yasser H. Zaki
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni Suef, Egypt
- Department of Chemistry, Faculty of Science and Humanity Studies at Al-Quwayiyah, Shaqra University, Al Quwayiyah, Saudi Arabia
| | - Marwa S. El-Gendey
- Department of Chemistry, Turabah University College, Taif University, Turabah, Saudi Arabia
- Department of Chemistry, Faculty of Science, Al-Azhar University (Girls), Cairo, Egypt
| | - Sawsan A. Fouad
- Department of Chemistry, Faculty of Science, Al-Azhar University (Girls), Cairo, Egypt
| | - Hussein S. Mohamed
- Chemistry of Medicinal and Aromatic Plants Department, Research Institute of Medicinal and Aromatic Plants (RIMAB), Beni-Suef University, Beni Suef, Egypt
- Basic Sciences Department, Higher Technological Institute in Beni-Suef, Beni Suef, Egypt
| | - Hamada H. Amer
- Department of Chemistry, Turabah University College, Taif University, Turabah, Saudi Arabia
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10
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Fe3O4@SiO2@Methotrexate as efficient and nanomagnetic catalyst for the synthesis of 9-(aryl)thiazolo [4,5-d] [1,2,4]triazolo [1,5-a]pyrimidin-2(3H)-ones via a cooperative anomeric based oxidation: A joint experimental and computational mechanistic study. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131769] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Gholivand K, Mohammadpanah F, Pooyan M, Roohzadeh R. Evaluating anti-coronavirus activity of some phosphoramides and their influencing inhibitory factors using molecular docking, DFT, QSAR, and NCI-RDG studies. J Mol Struct 2022; 1248:131481. [PMID: 34538931 PMCID: PMC8435241 DOI: 10.1016/j.molstruc.2021.131481] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 12/26/2022]
Abstract
The recent prevalence of coronavirus disease in 2019 (COVID-19) has triggered widespread global health concerns.Antiviral drugs based on phosphoramides have significant inhibitory activity against the main protease (Mpro) of the virus and prevent transcription and viral replication. Hence, in order to design and introduce a group of inhibitors affecting the coronavirus, 35 phosphoramide compounds based on phospho-guanine and phospho-pyrazine derivatives were selected for molecular docking study. The results showed that most phosphoguanides containing the amino benzimidazole have a high interaction tendency with COVID-19. Among them, compound 19 was identified as the strongest inhibitor with the -9.570 kcal/mol binding energy whereas, the binding energy of Remdesivir is -6.75 kcal/mol. The quantitative structure-activity relationship (QSAR) results demonstrated that the number of aromatic rings, amide's nitrogens and their ability in π-staking, and hydrogen interactions with Mpro active sites are major factors contributing to the inhibitory activity of these compounds.Also, the NCI-RDG and DFT results were in good accordance with those of QSAR and molecular docking. The findings of this investigation can be underlying the synthesis of effective and efficient drugs against COVID-19.
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Affiliation(s)
- Khodayar Gholivand
- Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran
| | - Fahimeh Mohammadpanah
- Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran
| | - Mahsa Pooyan
- Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran
| | - Roohollah Roohzadeh
- Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran
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12
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Shyshkina MO, Shishkina SV, Ostras KS, Gorobets NY, Chebanov VA, Desenko SM. The first coordination complex of (5 R,6 R,7 S)-5-(furan-2-yl)-7-phenyl-4,5,6,7-tetra-hydro-[1,2,4]triazolo[1,5- a]pyrimidin-6-amine with zinc(II) acetate-chloride. Acta Crystallogr E Crystallogr Commun 2021; 77:1323-1326. [PMID: 34925907 PMCID: PMC8647737 DOI: 10.1107/s2056989021012226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/17/2021] [Indexed: 11/10/2022]
Abstract
The title complex, systematic name catena-poly[[[acetato-chlorido-zinc(II)]-μ-(5R,6R,7S)-5-(furan-2-yl)-7-phenyl-4,5,6,7-tetra-hydro-[1,2,4]triazolo[1,5-a]py-rimi-din-6-amine] monohydrate], {[Zn(C2H3O2)Cl(C15H15N5O)]·H2O} n , is the first coordination complex in which the neutral tetra-hydro-triazolo-pyrimidine derivative acts as bridging ligand between two zinc mol-ecules. As a result, polymeric chains of the coordination complex are found. The coordination of the zinc metal atom occurs with the lone pairs of the triazolo nitro-gen atom and amino group. The positive charge of the zinc atom is compensated by the chlorine anion and deprotonated acetic acid. The coordination complex exists as a monohydrate in the crystalline phase. The water mol-ecules bind neighbouring polymeric chains by the formation of O-H⋯O, O-H⋯Cl and N-H⋯O hydrogen bonds.
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Affiliation(s)
- Mariia O. Shyshkina
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Svitlana V Shishkina
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Konstantin S. Ostras
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Nikolay Yu. Gorobets
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Valentyn A. Chebanov
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
| | - Sergey M. Desenko
- SSI Institute for Single Crystals, NAS of Ukraine, 60 Nauky ave., Kharkiv 61001, Ukraine
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13
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Khattab RR, Hassan AA, A Osman DA, Abdel-Megeid FM, Awad HM, Nossier ES, El-Sayed WA. Synthesis, anticancer activity and molecular docking of new triazolo[4,5- d]pyrimidines based thienopyrimidine system and their derived N-glycosides and thioglycosides. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:1090-1113. [PMID: 34496727 DOI: 10.1080/15257770.2021.1975297] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A series of new substituted triazolo[4,5-d]pyrimidine derivatives linked to thienopyrimidine ring system were prepared as a hybrid heterocyclic systems, as possible nucleobases analogs, starting from the key carboxamide derivative 2 and its azide precursor via heterocyclization reactions and their structures were characterized. Glycosylation of the prepared triazolopyrimidine derivatives was performed and afforded, regioselctively, the corresponding thienopyrimidine-triazolopyrimidine hybrid N1-glycosides and their thioglycoside analogues in good yields. The synthesized glycosyl heterocycles were studied for their cytotoxic activity against HepG-2 and MCF-7 human cancer cells and significant results were obtained. Compounds 7a, 8 b, 9 b, 9a and 7 b demonstrated promising activities comparable to the activity of the doxorubicin for (HepG-2) cell line. Furthermore, a number of the afforded triazolopyrimidine glycosides were found potent against cancer cells (MCF-7). Furthermore, docking simulation the promising thienopyrimidine analogues 7-13 was done against EGFR kinase to provide a binding model that could serve in discovery of further anticancer agents.
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Affiliation(s)
- Reham R Khattab
- Photochemistry Department (Synthetic Unit), National Research Centre, Cairo, Egypt
| | - Allam A Hassan
- Chemistry Department, Faculty of Science, Suez University, Suez, Egypt.,Medical Laboratories Department, Applied Medical Science, Shaqra University, Shaqra, Saudi Arabia
| | - Dalia A A Osman
- Photochemistry Department (Synthetic Unit), National Research Centre, Cairo, Egypt
| | | | - Hanem M Awad
- Tanning Materials and Leather Technology Department, National Research Centre, Cairo, Egypt
| | - Eman S Nossier
- Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Wael A El-Sayed
- Photochemistry Department (Synthetic Unit), National Research Centre, Cairo, Egypt.,Department of Chemistry, College of Science, Qassim University, Buraydah, Saudi Arabia
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14
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Gein VL, Zamaraeva TM, Dmitriev MV. Synthesis and Structure of 9-Aryl-8-aryl(fur-2-yl)-4,9-dihydrotetrazolo[1′,5′:1,2]pyrimido[4,5-d]pyridazin-5(6H)-ones. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s107036322108003x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Safaei‐Ghomi J, Pooramiri P, Babaei P. Green sonosynthesis of phenazinpyrimidines using
Co
3
O
4
/
ZnO
@
N‐GQDs
@
SO
3
H
nanocomposite as a robust heterogeneous catalyst. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Javad Safaei‐Ghomi
- Department of Organic Chemistry, Faculty of Chemistry University of Kashan Kashan Iran
| | - Parvin Pooramiri
- Department of Organic Chemistry, Faculty of Chemistry University of Kashan Kashan Iran
| | - Pouria Babaei
- Department of Organic Chemistry, Faculty of Chemistry University of Kashan Kashan Iran
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16
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Muhammad ZA, Farghaly TA, Althagafi I, Al‐Hussain SA, Zaki MEA, Harras MF. Synthesis of antimicrobial azoloazines and molecular docking for inhibiting COVID-19. J Heterocycl Chem 2021; 58:1286-1301. [PMID: 34230687 PMCID: PMC8250121 DOI: 10.1002/jhet.4257] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/24/2021] [Accepted: 03/04/2021] [Indexed: 11/12/2022]
Abstract
Diverse new azoloazines were synthesized from the reaction of fluorinated hydrazonoyl chlorides with heterocyclic thiones, 1,8-diaminonaphthalene, ketene aminal derivatives, and 4-amino-5-triflouromethyl-1,2,4-triazole-2-thiol. The mechanistic pathways and the structures of all synthesized derivatives were discussed and assured based on the available spectral data. The synthesized azoloazine derivatives were evaluated for their antifungal and antibacterial activities through zone of inhibition measurement. The results revealed promising antifungal activities for compounds 4, 5, 17a,b, 19, and 25 against the pathogenic fungal strains used; Aspergillus flavus and Candida albicans compared to ketoconazole. In addition, compounds 4, 5, 19, and 25 showed moderate antibacterial activities against most tested bacterial strains. Molecular docking studies of the promising compounds were carried out on leucyl-tRNA synthetase active site of Candida albicans, suggesting good binding in the active site forming stable complexes. Moreover, docking of the synthesized compounds was performed on the active site of SARS-CoV-2 3CLpro to predict their potential as a hopeful anti-COVID and to investigate their binding pattern.
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Affiliation(s)
- Zeinab A. Muhammad
- Department of Organic ChemistryNational Organization for Drug Control and Research (NODCAR)GizaEgypt
| | - Thoraya A. Farghaly
- Department of Chemistry, Faculty of ScienceCairo UniversityGizaEgypt
- Department of Chemistry, Faculty of Applied ScienceUmm Al‐Qura UniversityMakkahSaudi Arabia
| | - Ismail Althagafi
- Department of Chemistry, Faculty of Applied ScienceUmm Al‐Qura UniversityMakkahSaudi Arabia
| | - Sami A. Al‐Hussain
- Department of Chemistry, Faculty of ScienceAl‐Imam Mohammad Ibn Saud Islamic University (IMSIU)RiyadhSaudi Arabia
| | - Magdi E. A. Zaki
- Department of Chemistry, Faculty of ScienceAl‐Imam Mohammad Ibn Saud Islamic University (IMSIU)RiyadhSaudi Arabia
| | - Marwa F. Harras
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy (Girls)Al‐Azhar UniversityCairoEgypt
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17
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Felicetti T, Pismataro MC, Cecchetti V, Tabarrini O, Massari S. Triazolopyrimidine Nuclei: Privileged Scaffolds for Developing Antiviral Agents with a Proper Pharmacokinetic Profile. Curr Med Chem 2021; 29:1379-1407. [PMID: 34042030 DOI: 10.2174/0929867328666210526120534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/16/2021] [Accepted: 04/18/2021] [Indexed: 11/22/2022]
Abstract
Viruses are a continuing threat to global health. The lack or limited therapeutic armamentarium against some viral infections and increasing drug resistance issues make the search for new antiviral agents urgent. In recent years, a growing literature highlighted the use of triazolopyrimidine (TZP) heterocycles in the development of antiviral agents, with numerous compounds that showed potent antiviral activities against different RNA and DNA viruses. TZP core represents a privileged scaffold for achieving biologically active molecules, thanks to: i) the synthetic feasibility that allows to variously functionalize TZPs in the different positions of the nucleus, ii) the ability of TZP core to establish multiple interactions with the molecular target, and iii) its favorable pharmacokinetic properties. In the present review, after mentioning selected examples of TZP-based compounds with varied biological activities, we will focus on those antivirals that appeared in the literature in the last 10 years. Approaches used for their identification, the hit-to-lead studies, and the emerged structure-activity relationship will be described. A mention of the synthetic methodologies to prepare TZP nuclei will also be given. In addition, their mechanism of action, the binding mode within the biological target, and pharmacokinetic properties will be analyzed, highlighting the strengths and weaknesses of compounds based on the TZP scaffold, which is increasingly used in medicinal chemistry.
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Affiliation(s)
- Tommaso Felicetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
| | | | - Violetta Cecchetti
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
| | - Oriana Tabarrini
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
| | - Serena Massari
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy
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18
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Mamedov VА, Zhukova NА, Kadyrova MS. The Dimroth Rearrangement in the Synthesis of Condensed Pyrimidines - Structural Analogs of Antiviral Compounds. Chem Heterocycl Compd (N Y) 2021; 57:342-368. [PMID: 34024912 PMCID: PMC8121644 DOI: 10.1007/s10593-021-02913-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/16/2020] [Indexed: 11/30/2022]
Abstract
The review discusses the use of the Dimroth rearrangement in the synthesis of condensed pyrimidines which are key structural fragments of antiviral agents. The main attention is given to publications over the past 10 years. The bibliography includes 107 references.
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Key Words
- Dimroth rearrangement
- [1,2,4]triazolo[1,5-a]pyrimidines
- [1,2,4]triazolo[1,5-c]pyrimidines
- antiviral activity
- furo[2,3-d]pyrimidines
- imidazo[1,2-a]pyrimidines
- purines
- pyrazolo[3,4-d]pyrimidines
- pyrrolo[2,3-d]pyrimidines
- quinazolin(on)es
- thieno[2,3-d]pyrimidines
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Affiliation(s)
- Vakhid А. Mamedov
- Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, 8 Akademika Arbuzova St, Kazan, 420088 Russia
| | - Nataliya А. Zhukova
- Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, 8 Akademika Arbuzova St, Kazan, 420088 Russia
| | - Milyausha S. Kadyrova
- Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, 8 Akademika Arbuzova St, Kazan, 420088 Russia
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19
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20
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Basirat N. Preparation and application of a novel supported 3-(3-sulfamic acid imidazolium trifluoroacetate)propyl triethoxysilane on magnetic nanoparticles as a new magnetic ionic liquid for the synthesis of triazole quinazolinones and fused pyrimidines. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04271-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Pinheiro S, Pinheiro EMC, Muri EMF, Pessôa JC, Cadorini MA, Greco SJ. Biological activities of [1,2,4]triazolo[1,5-a]pyrimidines and analogs. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02609-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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22
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Crystal structure of ( E)-2-((2-(pyrimidin-2-yl)hydrazono)methyl)quinolin-1-ium perchlorate – methanol (1/1), C 15H 16N 5O 5Cl. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2019-0873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C15H16N5O5Cl, monoclinic, P21/n (no. 14), a = 7.37210(10) Å, b = 13.30639(19) Å, c = 17.1682(2) Å, β = 97.2301(12)°, Z = 4, V = 1670.74(4) Å3, R
gt(F) = 0.0357, wR
ref(F
2) = 0.1023, T = 173(1) K.
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23
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Basirat N, Sajadikhah SS, Zare A. Ionic liquid-catalyzed synthesis of triazoloquinazolinones, chromeno[4,3-d]benzothiazolopyrimidines and benzoimidazopyrimidine derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04151-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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24
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Sakhno YI, Murlykina MV, Zbruyev OI, Kozyryev AV, Shishkina SV, Sysoiev D, Musatov VI, Desenko SM, Chebanov VA. Ultrasonic-assisted unusual four-component synthesis of 7-azolylamino-4,5,6,7-tetrahydroazolo[1,5- a]pyrimidines. Beilstein J Org Chem 2020; 16:281-289. [PMID: 32180844 PMCID: PMC7059450 DOI: 10.3762/bjoc.16.27] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/19/2020] [Indexed: 11/23/2022] Open
Abstract
Four-component reactions of 3-amino-1,2,4-triazole or 5-amino-1H-pyrazole-4-carbonitrile with aromatic aldehydes and pyruvic acid or its esters under ultrasonication were studied. Unusual for such a reaction type, a cascade of elementary stages led to the formation of 7-azolylaminotetrahydroazolo[1,5-a]pyrimidines.
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Affiliation(s)
- Yana I Sakhno
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Maryna V Murlykina
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
| | - Oleksandr I Zbruyev
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Anton V Kozyryev
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Svetlana V Shishkina
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
| | - Dmytro Sysoiev
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 542/2, 166 10 Praha 6, Czech Republic
| | - Vladimir I Musatov
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine
| | - Sergey M Desenko
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
| | - Valentyn A Chebanov
- Division of Chemistry of Functional Materials, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, Nauky Av. 60, 61072 Kharkiv, Ukraine.,Faculty of Chemistry, V. N. Karazin Kharkiv National University, Svobody Sq. 4, 61077 Kharkiv, Ukraine
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25
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Pandey YK, Mishra A, Rai P, Singh J, Singh J, Singh RK. DBU Catalysis: An Efficient Synthetic Strategy for 5,7-disubstituted-1,2,4- triazolo[1,5-a]pyrimidines. Curr Org Synth 2020; 17:73-80. [PMID: 32103720 DOI: 10.2174/1570179417666191216123339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 08/09/2019] [Accepted: 12/15/2019] [Indexed: 11/22/2022]
Abstract
AIMS AND OBJECTIVES An efficient and facile DBU catalysed synthesis of highly significant motif 5,7-disubstituted-1,2,4-triazolo[1,5-a]pyrimidines under solvent-free condition has been reported. MATERIALS AND METHODS To a round bottom flask, 1.0 mmol of chalcone (1), 1.5 mmol of 3-amino-1,2,4- triazole (2) and 30 mol% of DBU were added at 70 °C and stirred in solvent-free condition. After the completion of the reaction (monitored by TLC), water (10 ml) was added. The aqueous layer was extracted with ethyl acetate (3 ×10 ml). The combined organic layers were dried over anhydrous Na2SO4. The combined organic layers were evaporated under reduced pressure and the resulting crude product was purified by column chromatography by using ethyl acetate and hexane as eluent. RESULTS Reaction using chalcone and 3-amino-1,2,4-triazole as model substrates were carried out under different reaction conditions and it was observed that 30 mol% of DBU under the solvent-free condition at 70 °C was the optimum temperature for the proposed synthesis. CONCLUSION Use of DBU (an organocatalyst) as a base, operational simplicity, high yield of products and short reaction time are some of the significant advantages associated with the proposed strategy.
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Affiliation(s)
- Yogesh K Pandey
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Anu Mishra
- Environmentally Benign Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Pratibha Rai
- Environmentally Benign Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Jaya Singh
- Department of Chemistry, LRPG College, Sahibabad, Uttar Pradesh, India
| | - Jagdamba Singh
- Environmentally Benign Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Ramendra K Singh
- Bioorganic Research Laboratory, Department of Chemistry, University of Allahabad, Allahabad-211002, India
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26
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Three-component green synthesis of 6-ethoxycarbonyl-5-methyl-7-(thien-2-yl)-4,7-dihydro[1,2,4]triazolo[1,5-a]pyrimidine, a promising antituberculosis drug. Russ Chem Bull 2020. [DOI: 10.1007/s11172-019-2698-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Abu El-Azm FSM, El-Shahawi MM, Elgubbi AS, Madkour HMF. Design, synthesis, anti-proliferative activity, and molecular docking studies of novel benzo[f]chromene, chromeno [2,3-d]pyrimidines and chromenotriazolo[1,5-c]pyrimidines. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2019.1710850] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Manal M. El-Shahawi
- Faculty of Science, Chemistry Department, Ain Shams University, Cairo, Egypt
| | - Amna S. Elgubbi
- Faculty of Science, Chemistry Department, Misurata University, Misurata, Libya
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28
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Prezent MA, Baranin SV. A convenient route to the 1,2,5-oxadiazole-substituted 1,2,4-triazolo[1,5-a]pyrimidine derivatives. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02590-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Elkanzi NAA, El-Sofany WI, Gaballah ST, Mohamed AM, Kutkat O, El-Sayed WA. Synthesis, Molecular Modeling, and Antiviral Activity of Novel Triazole Nucleosides and Their Analogs. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219090263] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Abdelhamid AO, Gomha SM, El‐Enany WAMA. Efficient Synthesis and Antimicrobial Evaluation of New Azolopyrimidines‐Bearing Pyrazole Moiety. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3638] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Sobhi M. Gomha
- Department of Chemistry, Faculty of ScienceUniversity of Cairo Giza Egypt
- Department of Chemistry, Faculty of ScienceIslamic University in Almadinah Almonawara Almadinah Almonawara 42351 Saudi Arabia
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31
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Titova YA, Filatova ES, Fedorova OV, Rusinov GL, Charushin VN. 4-(Het)aryl-4,7-dihydroazolopyrimidines and Their Tuberculostatic Activity. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2019. [DOI: 10.1134/s107042801906006x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Singh K, Jana A, Lippmann P, Ott I, Das N. Pyrimidine Derivatives with Terminal Pyridyl Heterocycles: Facile Synthesis and Their Antiproliferative Activities. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Khushwant Singh
- Department of ChemistryIndian Institute of Technology Patna Bihta 801 106 Bihar India
| | - Achintya Jana
- Department of ChemistryIndian Institute of Technology Patna Bihta 801 106 Bihar India
| | - Petra Lippmann
- Institute of Medicinal and Pharmaceutical ChemistryTechnische Universität Braunschweig Beethovenstraße 55 Braunschweig 38106 Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical ChemistryTechnische Universität Braunschweig Beethovenstraße 55 Braunschweig 38106 Germany
| | - Neeladri Das
- Department of ChemistryIndian Institute of Technology Patna Bihta 801 106 Bihar India
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33
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Nimnual P, Tummatorn J, Boekfa B, Thongsornkleeb C, Ruchirawat S, Piyachat P, Punjajom K. Construction of 5-Aminotetrazoles via in Situ Generation of Carbodiimidium Ions from Ketones Promoted by TMSN 3/TfOH. J Org Chem 2019; 84:5603-5613. [PMID: 30945854 DOI: 10.1021/acs.joc.9b00555] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A novel synthetic approach for the synthesis of 5-aminotetrazoles has been developed by employing simple ketones as substrates. This methodology involved the N2-extrusion/aryl migration of azido complexes as the key step for the in situ generation of carbodiimidium ion, which could further react with hydrazoic acid and cyclize intramolecularly to provide 5-aminotetrazoles in good to excellent yields. In addition, the regioselectivity of the reaction was studied and rationalized by density functional theory calculations.
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Affiliation(s)
- Phongprapan Nimnual
- Program on Chemical Biology , Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand
| | - Jumreang Tummatorn
- Program on Chemical Biology , Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand.,Laboratory of Medicinal Chemistry , Chulabhorn Research Institute , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand
| | - Bundet Boekfa
- Department of Chemistry, Faculty of Liberal Arts and Science , Kasetsart University , Kamphaeng Saen Campus, Bangkok , Nakhon Pathom 73140 , Thailand
| | - Charnsak Thongsornkleeb
- Program on Chemical Biology , Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand.,Laboratory of Medicinal Chemistry , Chulabhorn Research Institute , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand
| | - Somsak Ruchirawat
- Program on Chemical Biology , Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand.,Laboratory of Medicinal Chemistry , Chulabhorn Research Institute , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand
| | - Pawida Piyachat
- Program on Chemical Biology , Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand
| | - Kunlayanee Punjajom
- Program on Chemical Biology , Chulabhorn Graduate Institute, Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education , 54 Kamphaeng Phet 6 , Laksi , Bangkok 10210 , Thailand
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34
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Ameen MA, Ahmed EK, Mahmoud HI, Ramadan M. Synthesis and Screening of Phosphodiesterase 5 Inhibitory Activity of Fused and Isolated Triazoles Based on Thieno[2,3‐
d
]pyrimidines. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mohamed A. Ameen
- Chemistry Department, Faculty of ScienceMinia University El Minia 61519 Egypt
| | - Essam Kh. Ahmed
- Chemistry Department, Faculty of ScienceMinia University El Minia 61519 Egypt
| | - Hemdan I. Mahmoud
- Agricultural Chemistry Department, Faculty of AgricultureMinia University El Minia 61519 Egypt
| | - Mohamed Ramadan
- Organic Chemistry Department, Faculty of PharmacyAl‐Azhar University Assiut 71524 Egypt
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Akrami S, Karami B, Farahi M. A novel protocol for catalyst-free synthesis of fused six-member rings to triazole and pyrazole. Mol Divers 2019; 24:225-231. [PMID: 30937596 DOI: 10.1007/s11030-019-09944-5] [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: 01/29/2019] [Accepted: 03/21/2019] [Indexed: 02/08/2023]
Abstract
Herein, an effectual, quick and novel method is described for the synthesis of new triazolo[1,5-a]pyrimidine, triazolo[5,1-b][1,3] thiazine and pyrazolo[1,5-a]pyrimidine derivatives. This series of fused six-member rings to triazole and pyrazole was prepared via the catalyst-free reaction of dialkyl acetylenedicarboxylates and 3-substituted 1H-1,2,4-triazole or 3-amino-1H-pyrazole-4-carbonitrile. The structures of the prepared products were deduced from their Fourier-transform infrared, elemental analysis and proton and carbon-13 nuclear magnetic resonance spectral data. A novel and green method is described for the synthesis of new triazolo[1,5-a]pyrimidine, triazolo[5,1-b][1,3] thiazine and pyrazolo[1,5-a]pyrimidine derivatives.
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Affiliation(s)
- Sedigheh Akrami
- Department of Chemistry, Yasouj University, Yasuj, 75918-74831, Iran
| | - Bahador Karami
- Department of Chemistry, Yasouj University, Yasuj, 75918-74831, Iran.
| | - Mahnaz Farahi
- Department of Chemistry, Yasouj University, Yasuj, 75918-74831, Iran
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Fischer G. Recent advances in 1,2,4-triazolo[1,5-a]pyrimidine chemistry. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.10.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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37
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Xia Y, Liang TJ. Development of Direct-acting Antiviral and Host-targeting Agents for Treatment of Hepatitis B Virus Infection. Gastroenterology 2019; 156:311-324. [PMID: 30243618 PMCID: PMC6340783 DOI: 10.1053/j.gastro.2018.07.057] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/13/2018] [Accepted: 07/23/2018] [Indexed: 02/06/2023]
Abstract
Hepatitis B virus (HBV) infection affects approximately 300 million people worldwide. Although antiviral therapies have improved the long-term outcomes, patients often require life-long treatment and there is no cure for HBV infection. New technologies can help us learn more about the pathogenesis of HBV infection and develop therapeutic agents to reduce its burden. We review recent advances in development of direct-acting antiviral and host-targeting agents, some of which have entered clinical trials. We also discuss strategies for unbiased high-throughput screens to identify compounds that inhibit HBV and for repurposing existing drugs.
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Affiliation(s)
- Yuchen Xia
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, 20892
| | - T Jake Liang
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, 20892.
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38
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Zhang P, Zhai S, Chang J, Guo JT. In Vitro Anti-hepatitis B Virus Activity of 2',3'-Dideoxyguanosine. Virol Sin 2018; 33:538-544. [PMID: 30421112 PMCID: PMC6335223 DOI: 10.1007/s12250-018-0065-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 10/11/2018] [Indexed: 11/30/2022] Open
Abstract
2',3'-dideoxyguanosine (DoG) has been demonstrated to inhibit duck hepatitis B virus (DHBV) replication in vivo in a duck model of HBV infection. In the current study, the in vitro antiviral effects of DoG on human and animal hepadnaviruses were investigated. Our results showed that DoG effectively inhibited HBV, DHBV, and woodchuck hepatitis virus (WHV) replication in hepatocyte-derived cells in a dose-dependent manner, with 50% effective concentrations (EC50) of 0.3 ± 0.05, 6.82 ± 0.25, and 23.0 ± 1.5 μmol/L, respectively. Similar to other hepadnaviral DNA polymerase inhibitors, DoG did not alter the levels of intracellular viral RNA but induced the accumulation of a less-than-full-length viral RNA species, which was recently demonstrated to be generated by RNase H cleavage of pgRNA. Furthermore, using a transient transfection assay, DoG showed similar antiviral activity against HBV wild-type, 3TC-resistant rtA181V, and adefovir-resistant rtN236T mutants. Our results suggest that DoG has potential as a nucleoside analogue drug with anti-HBV activity.
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Affiliation(s)
- Pinghu Zhang
- Institute of Translational Medicine and Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001 China
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA 18902 USA
- Qinghai Himalayan Experimental Animal Center, Xining, 810006 China
| | - Shuo Zhai
- Institute of Translational Medicine and Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225001 China
| | - Jinhong Chang
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA 18902 USA
| | - Ju-Tao Guo
- Baruch S. Blumberg Institute, Hepatitis B Foundation, Doylestown, PA 18902 USA
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39
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Han X, Zhou C, Jiang M, Wang Y, Wang J, Cheng Z, Wang M, Liu Y, Liang C, Wang J, Wang Z, Weikert R, Lv W, Xie J, Yu X, Zhou X, Luangsay S, Shen HC, Mayweg AV, Javanbakht H, Yang S. Discovery of RG7834: The First-in-Class Selective and Orally Available Small Molecule Hepatitis B Virus Expression Inhibitor with Novel Mechanism of Action. J Med Chem 2018; 61:10619-10634. [PMID: 30286292 DOI: 10.1021/acs.jmedchem.8b01245] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chronic hepatitis B virus (HBV) infection is a serious public health burden, and current therapies cannot achieve satisfactory cure rate. There are high unmet medical needs of novel therapeutic agents with differentiated mechanism of action (MOA) from the current standard of care. RG7834, a compound from the dihydroquinolizinone (DHQ) chemical series, is a first-in-class highly selective and orally bioavailable HBV inhibitor which can reduce both viral antigens and viral DNA with a novel mechanism of action. Here we report the discovery of RG7834 from a phenotypic screening and the structure-activity relationship (SAR) of the DHQ chemical series. RG7834 can selectively inhibit HBV but not other DNA or RNA viruses in a virus panel screening. Both in vitro and in vivo profiles of RG7834 are described herein, and the data support further development of this compound as a chronic HBV therapy.
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40
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Bloom K, Maepa MB, Ely A, Arbuthnot P. Gene Therapy for Chronic HBV-Can We Eliminate cccDNA? Genes (Basel) 2018; 9:E207. [PMID: 29649127 PMCID: PMC5924549 DOI: 10.3390/genes9040207] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 04/05/2018] [Accepted: 04/09/2018] [Indexed: 02/06/2023] Open
Abstract
Chronic infection with the hepatitis B virus (HBV) is a global health concern and accounts for approximately 1 million deaths annually. Amongst other limitations of current anti-HBV treatment, failure to eliminate the viral covalently closed circular DNA (cccDNA) and emergence of resistance remain the most worrisome. Viral rebound from latent episomal cccDNA reservoirs occurs following cessation of therapy, patient non-compliance, or the development of escape mutants. Simultaneous viral co-infections, such as by HIV-1, further complicate therapeutic interventions. These challenges have prompted development of novel targeted hepatitis B therapies. Given the ease with which highly specific and potent nucleic acid therapeutics can be rationally designed, gene therapy has generated interest for antiviral application. Gene therapy strategies developed for HBV include gene silencing by harnessing RNA interference, transcriptional inhibition through epigenetic modification of target DNA, genome editing by designer nucleases, and immune modulation with cytokines. DNA-binding domains and effectors based on the zinc finger (ZF), transcription activator-like effector (TALE), and clustered regularly interspaced short palindromic repeat (CRISPR) systems are remarkably well suited to targeting episomal cccDNA. This review discusses recent developments and challenges facing the field of anti-HBV gene therapy, its potential curative significance and the progress towards clinical application.
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Affiliation(s)
- Kristie Bloom
- Wits/SAMRC Antiviral Gene Therapy Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Private Bag 3, Johannesburg, WITS 2050, South Africa.
| | - Mohube Betty Maepa
- Wits/SAMRC Antiviral Gene Therapy Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Private Bag 3, Johannesburg, WITS 2050, South Africa.
| | - Abdullah Ely
- Wits/SAMRC Antiviral Gene Therapy Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Private Bag 3, Johannesburg, WITS 2050, South Africa.
| | - Patrick Arbuthnot
- Wits/SAMRC Antiviral Gene Therapy Research Unit, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Private Bag 3, Johannesburg, WITS 2050, South Africa.
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41
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Feng S, Gao L, Han X, Hu T, Hu Y, Liu H, Thomas AW, Yan Z, Yang S, Young JAT, Yun H, Zhu W, Shen HC. Discovery of Small Molecule Therapeutics for Treatment of Chronic HBV Infection. ACS Infect Dis 2018; 4:257-277. [PMID: 29369612 DOI: 10.1021/acsinfecdis.7b00144] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The chronic infection of hepatitis B virus (HBV) inflicts 250 million people worldwide representing a major public health threat. A significant subpopulation of patients eventually develop cirrhosis and hepatocellular carcinoma (HCC). Unfortunately, none of the current standard therapies for chronic hepatitis B (CHB) result in a satisfactory clinical cure rate. Driven by a highly unmet medical need, multiple pharmaceutical companies and research institutions have been engaged in drug discovery and development to improve the CHB functional cure rate, defined by sustainable viral suppression and HBsAg clearance after a finite treatment. This Review summarizes the recent advances in the discovery and development of novel anti-HBV small molecules. It is believed that an improved CHB functional cure rate may be accomplished via the combination of molecules with distinct MoAs. Thus, certain molecules may evolve into key components of a suitable combination therapy leading to superior outcome of clinical efficacy in the future.
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Affiliation(s)
- Song Feng
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Lu Gao
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Xingchun Han
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Taishan Hu
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Yimin Hu
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Haixia Liu
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Andrew W. Thomas
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Zhipeng Yan
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Song Yang
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - John A. T. Young
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Hongying Yun
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Wei Zhu
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
| | - Hong C. Shen
- Roche Innovation Center Shanghai, Roche Pharma Research & Early Development, Building 5, 720 Cailun Road, Shanghai, 201203, China
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42
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Recent progress in potential anti-hepatitis B virus agents: Structural and pharmacological perspectives. Eur J Med Chem 2018; 147:205-217. [DOI: 10.1016/j.ejmech.2018.02.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 01/29/2018] [Accepted: 02/01/2018] [Indexed: 12/13/2022]
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43
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Wilson EMP, Tang L, Kottilil S. Eradication Strategies for Chronic Hepatitis B Infection. Clin Infect Dis 2017; 62 Suppl 4:S318-25. [PMID: 27190322 DOI: 10.1093/cid/ciw044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Chronic hepatitis B infection affects >300 million people worldwide and is a leading cause of liver failure and cancer. Current approaches to treatment for chronic hepatitis B involve suppression of hepatitis B virus (HBV) DNA with the use of nucleoside analogues. Chronic suppressive therapy rarely results in a "functional cure" or absence of detectable HBV DNA in plasma and loss of detectable hepatitis B surface antigen after cessation of therapy. The major obstacles to achieving a functional cure are the presence of covalently closed circular DNA and ineffective/exhaustive immune system. This review focuses on novel approaches to target viral life cycle and host immunity to achieve a functional cure.
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Affiliation(s)
- Eleanor M P Wilson
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore
| | - Lydia Tang
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore
| | - Shyam Kottilil
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore
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44
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Rasputin NA, Demina NS, Irgashev RA, Rusinov GL, Chupakhin ON, Charushin VN. Direct (het)arylation of [1,2,4]triazolo[1,5- a ]pyrimidines: Both eliminative and oxidative pathways. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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45
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Discovery and Mechanistic Study of Benzamide Derivatives That Modulate Hepatitis B Virus Capsid Assembly. J Virol 2017; 91:JVI.00519-17. [PMID: 28566379 DOI: 10.1128/jvi.00519-17] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/19/2017] [Indexed: 02/06/2023] Open
Abstract
Chronic hepatitis B virus (HBV) infection is a global public health problem. Although the currently approved medications can reliably reduce the viral load and prevent the progression of liver diseases, they fail to cure the viral infection. In an effort toward discovery of novel antiviral agents against HBV, a group of benzamide (BA) derivatives that significantly reduced the amount of cytoplasmic HBV DNA were discovered. The initial lead optimization efforts identified two BA derivatives with improved antiviral activity for further mechanistic studies. Interestingly, similar to our previously reported sulfamoylbenzamides (SBAs), the BAs promote the formation of empty capsids through specific interaction with HBV core protein but not other viral and host cellular components. Genetic evidence suggested that both SBAs and BAs inhibited HBV nucleocapsid assembly by binding to the heteroaryldihydropyrimidine (HAP) pocket between core protein dimer-dimer interfaces. However, unlike SBAs, BA compounds uniquely induced the formation of empty capsids that migrated more slowly in native agarose gel electrophoresis from A36V mutant than from the wild-type core protein. Moreover, we showed that the assembly of chimeric capsids from wild-type and drug-resistant core proteins was susceptible to multiple capsid assembly modulators. Hence, HBV core protein is a dominant antiviral target that may suppress the selection of drug-resistant viruses during core protein-targeting antiviral therapy. Our studies thus indicate that BAs are a chemically and mechanistically unique type of HBV capsid assembly modulators and warranted for further development as antiviral agents against HBV.IMPORTANCE HBV core protein plays essential roles in many steps of the viral replication cycle. In addition to packaging viral pregenomic RNA (pgRNA) and DNA polymerase complex into nucleocapsids for reverse transcriptional DNA replication to take place, the core protein dimers, existing in several different quaternary structures in infected hepatocytes, participate in and regulate HBV virion assembly, capsid uncoating, and covalently closed circular DNA (cccDNA) formation. It is anticipated that small molecular core protein assembly modulators may disrupt one or multiple steps of HBV replication, depending on their interaction with the distinct quaternary structures of core protein. The discovery of novel core protein-targeting antivirals, such as benzamide derivatives reported here, and investigation of their antiviral mechanism may lead to the identification of antiviral therapeutics for the cure of chronic hepatitis B.
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46
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Shevtsov M, Zhao L, Protzer U, van de Klundert MAA. Applicability of Metal Nanoparticles in the Detection and Monitoring of Hepatitis B Virus Infection. Viruses 2017; 9:v9070193. [PMID: 28753992 PMCID: PMC5537685 DOI: 10.3390/v9070193] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 07/01/2017] [Accepted: 07/06/2017] [Indexed: 02/07/2023] Open
Abstract
Chronic infection with the hepatitis B virus (HBV) can lead to liver failure and can cause liver cirrhosis and hepatocellular carcinoma (HCC). Reliable means for detecting and monitoring HBV infection are essential to identify patients in need of therapy and to prevent HBV transmission. Nanomaterials with defined electrical, optical, and mechanical properties have been developed to detect and quantify viral antigens. In this review, we discuss the challenges in applying nanoparticles to HBV antigen detection and in realizing the bio-analytical potential of such nanoparticles. We discuss recent developments in generating detection platforms based on gold and iron oxide nanoparticles. Such platforms increase biological material detection efficiency by the targeted capture and concentration of HBV antigens, but the unique properties of nanoparticles can also be exploited for direct, sensitive, and specific antigen detection. We discuss several studies that show that nanomaterial-based platforms enable ultrasensitive HBV antigen detection.
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Affiliation(s)
- Maxim Shevtsov
- Klinikum rechts der Isar, Technischen Universität München (TUM), Ismaniger Str. 22, 81675 Munich, Germany.
- Institute of Cytology of the Russian Academy of Sciences (RAS), Tikhoretsky Ave., 4, 194064 St. Petersburg, Russia.
| | - Lili Zhao
- Institute of Virology, Technische Universität München/Helmholtz Zentrum München-German Center for Environmental Health, Trogerstr. 30, 81675 Munich, Germany.
| | - Ulrike Protzer
- Institute of Virology, Technische Universität München/Helmholtz Zentrum München-German Center for Environmental Health, Trogerstr. 30, 81675 Munich, Germany.
| | - Maarten A A van de Klundert
- Institute of Virology, Technische Universität München/Helmholtz Zentrum München-German Center for Environmental Health, Trogerstr. 30, 81675 Munich, Germany.
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47
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Ghorbani-Vaghei R, Shahriari A, Mahmoodi J, Maghbooli Y. Effective DABCO-catalyzed synthesis of new tetrazolo[1,5-a]pyrimidine analogs. Mol Divers 2017; 21:865-873. [PMID: 28681233 DOI: 10.1007/s11030-017-9760-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 05/29/2017] [Indexed: 11/29/2022]
Abstract
In this study, an efficient multicomponent one-pot route is described for the DABCO-catalyzed synthesis of tetrazolo[1,5-a]pyrimidines. This synthesis strategy is based on the reaction of malononitrile and aldehydes with 5-aminotetrazole monohydrate using 1,4-diazabicyclo[2.2.2]octane (DABCO) in i-PrOH under reflux conditions. This protocol is a simple, green, and low-cost technique to prepare new compounds with potential medicinal properties.
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Affiliation(s)
- Ramin Ghorbani-Vaghei
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 65174, Iran.
| | - Azadeh Shahriari
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 65174, Iran
| | - Jafar Mahmoodi
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 65174, Iran
| | - Yaser Maghbooli
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 65174, Iran
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48
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Remennikov GY. Transformations of Di- and Tetrahydropyrimidine Derivatives into Condensed Heterocycles with Retention of their Partially Saturated Structure. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2852] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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49
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Nallagangula M, Namitharan K. Copper-Catalyzed Sulfonyl Azide-Alkyne Cycloaddition Reactions: Simultaneous Generation and Trapping of Copper-Triazoles and -Ketenimines for the Synthesis of Triazolopyrimidines. Org Lett 2017; 19:3536-3539. [PMID: 28609631 DOI: 10.1021/acs.orglett.7b01500] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
First simultaneous generation and utilization of both copper-triazole and -ketenimine intermediates in copper-catalyzed sulfonyl azide-alkyne cycloaddition reactions is achieved for the one-pot synthesis of triazolopyrimidines via a novel copper-catalyzed multicomponent cascade of sulfonyl azides, alkynes, and azirines. Significantly, the reaction proceeds under very mild conditions in good yields.
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Affiliation(s)
- Madhu Nallagangula
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University , Chennai-603203, India
| | - Kayambu Namitharan
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University , Chennai-603203, India
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50
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Pei Y, Wang C, Yan SF, Liu G. Past, Current, and Future Developments of Therapeutic Agents for Treatment of Chronic Hepatitis B Virus Infection. J Med Chem 2017; 60:6461-6479. [PMID: 28383274 DOI: 10.1021/acs.jmedchem.6b01442] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
For decades, treatment of hepatitis B virus (HBV) infection has been relying on interferon (IFN)-based therapies and nucleoside/nucleotide analogues (NAs) that selectively target the viral polymerase reverse transcriptase (RT) domain and thereby disrupt HBV viral DNA synthesis. We have summarized here the key steps in the HBV viral life cycle, which could potentially be targeted by novel anti-HBV therapeutics. A wide range of next-generation direct antiviral agents (DAAs) with distinct mechanisms of actions are discussed, including entry inhibitors, transcription inhibitors, nucleoside/nucleotide analogues, inhibitors of viral ribonuclease H (RNase H), modulators of viral capsid assembly, inhibitors of HBV surface antigen (HBsAg) secretion, RNA interference (RNAi) gene silencers, antisense oligonucleotides (ASOs), and natural products. Compounds that exert their antiviral activities mainly through host factors and immunomodulation, such as host targeting agents (HTAs), programmed cell death protein 1 (PD-1)/programmed death ligand 1 (PD-L1) inhibitors, and Toll-like receptor (TLR) agonists, are also discussed. In this Perspective, we hope to provide an overview, albeit by no means being comprehensive, for the recent development of novel therapeutic agents for the treatment of chronic HBV infection, which not only are able to sustainably suppress viral DNA but also aim to achieve functional cure warranted by HBsAg loss and ultimately lead to virus eradication and cure of hepatitis B.
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Affiliation(s)
- Yameng Pei
- School of Pharmaceutical Sciences, Tsinghua University , Beijing 100084, China
| | - Chunting Wang
- School of Pharmaceutical Sciences, Tsinghua University , Beijing 100084, China
| | - S Frank Yan
- Molecular Design and Chemical Biology, Roche Pharma Research and Early Development, Roche Innovation Center Shanghai , Shanghai 201203, China
| | - Gang Liu
- School of Pharmaceutical Sciences, Tsinghua University , Beijing 100084, China
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