1
|
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.
Collapse
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.
| |
Collapse
|
2
|
Salamanca-Perdigón K, Hurtado-Rodríguez D, Portilla J, Iriepa I, Rojas H, Becerra D, Castillo JC. Cs 2CO 3-Promoted Alkylation of 3-Cyano-2(1H)-Pyridones: Anticancer Evaluation and Molecular Docking. Chempluschem 2024:e202400172. [PMID: 38840415 DOI: 10.1002/cplu.202400172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/20/2024] [Accepted: 06/03/2024] [Indexed: 06/07/2024]
Abstract
Herein, a Cs2CO3-promoted N-alkylation of 3-cyano-2(1H)-pyridones containing alkyl groups with diverse alkyl halides to synthesize N-alkyl-2-pyridones over O-alkylpyridines is reported. The use of alkyl dihalides resulted in complex mixtures of N- and O-alkylated products. The primary factor influencing regioselectivity in these reactions is the electronic effects of substituents on the 2(1H)-pyridone ring, as evidenced by the preferential formation of O-alkylpyridines upon the introduction of aryl groups. Remarkably, we efficiently employed CuAAC and Ti(Oi-Pr)4-catalyzed amidation reactions to functionalize N-alkyl-2-pyridones containing propargyl and ester groups, leading to the synthesis of 1,2,3-triazoles and amides, respectively. Moreover, O-alkylpyridines 10 b and 10 d displayed remarkable selectivity toward the A-498 renal cancer cell line with growth inhibition percentages (%GI) of 54.75 and 67.64, respectively. The binding modes of compounds 10 b and 10 d to the PIM-1 kinase enzyme were determined through molecular docking studies.
Collapse
Affiliation(s)
- Kevin Salamanca-Perdigón
- Escuela de Ciencias Químicas, Universidad Pedagógica y Tecnológica de Colombia, Tunja, 150003, Colombia
| | - Diana Hurtado-Rodríguez
- Escuela de Ciencias Químicas, Universidad Pedagógica y Tecnológica de Colombia, Tunja, 150003, Colombia
| | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18 A-10, Bogota, 111711, Colombia
| | - Isabel Iriepa
- Departamento de Química Orgánica y Química Inorgánica, Ctra. Madrid-Barcelona, Universidad de Alcalá, Km. 33, 6, 28871, Madrid, Spain
- Institute of Chemical Research Andrés M. del Río, Universidad de Alcalá, Alcalá de Henares, 28805, Madrid, Spain
| | - Hugo Rojas
- Escuela de Ciencias Químicas, Universidad Pedagógica y Tecnológica de Colombia, Tunja, 150003, Colombia
| | - Diana Becerra
- Escuela de Ciencias Químicas, Universidad Pedagógica y Tecnológica de Colombia, Tunja, 150003, Colombia
| | - Juan-Carlos Castillo
- Escuela de Ciencias Químicas, Universidad Pedagógica y Tecnológica de Colombia, Tunja, 150003, Colombia
| |
Collapse
|
3
|
Liang Z, Tan Y, Huang Y, Liang T, Wei W, Wang M, Shi K. Design and Synthesis of (3-Phenylisoxazol-5-yl)methanimine Derivatives as Hepatitis B Virus Inhibitors. Chem Biodivers 2023; 20:e202201247. [PMID: 36811262 DOI: 10.1002/cbdv.202201247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/09/2023] [Indexed: 02/24/2023]
Abstract
Series of (3-phenylisoxazol-5-yl)methanimine derivatives were synthesized, and evaluated for anti-hepatitis B virus (HBV) activity in vitro. Half of them more effectively inhibited HBsAg than 3TC, and more favor to inhibit secretion of HBeAg than to HBsAg. Part of the compounds with significant inhibition on HBeAg were also effectively inhibit replication of HBV DNA. Compound (E)-3-(4-fluorophenyl)-5-((2-phenylhydrazineylidene)methyl)isoxazole inhibited excellently HBeAg with IC50 in 0.65 μM (3TC(Lamivudine) in 189.90 μM), inhibited HBV DNA in 20.52 μM (3TC in 26.23 μM). Structures of compounds were determined by NMR and HRMS methods, and chlorination on phenyl ring of phenylisoxazol-5-yl was confirmed by X-ray diffraction analysis, and the structure-activity relationships (SARs) of the derivatives was discussed. This work provided a new class of potent non-nucleoside anti-HBV agents.
Collapse
Affiliation(s)
- Zhengcheng Liang
- College of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, China
| | - Yongqing Tan
- College of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, China
| | - Yunhou Huang
- College of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, China
| | - Taoyuan Liang
- College of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, China
| | - Wanxing Wei
- College of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, China
| | - Mian Wang
- College of Life Sciences, Guangxi University, 530004, Nanning, China
| | - Kaichuang Shi
- Guangxi Center for Animal Disease Control and Prevention, 530001, Nanning, China
| |
Collapse
|
4
|
Sharma S, Utreja D. Synthesis and antiviral activity of diverse heterocyclic scaffolds. Chem Biol Drug Des 2022; 100:870-920. [PMID: 34551197 DOI: 10.1111/cbdd.13953] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/07/2021] [Accepted: 09/11/2021] [Indexed: 01/25/2023]
Abstract
Heterocyclic moieties form a major part of organic chemistry as they are widely distributed in nature and have wide scale practical applications ranging from extensive clinical use to diverse fields such as medicine, agriculture, photochemistry, biocidal formulations, and polymer science. By virtue of their therapeutic properties, they could be employed in combating many infectious diseases. Among the common infectious diseases, viral infections are of great public health importance worldwide. Thus, there is an urgent need for the discovery and development of antiviral drugs and clinical methods to prevent various viral infections so as to increase the life expectancy. This review presents the comprehensive overview of the synthesis and antiviral activity of different heterocyclic compounds 2015 onwards, which aids in present knowledge and helps the researchers and other stakeholders to explore their field.
Collapse
Affiliation(s)
- Shivali Sharma
- Department of Chemistry, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, India
| | - Divya Utreja
- Department of Chemistry, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, India
| |
Collapse
|
5
|
Liu L, Wang M, Li C, Han X, Xie Y, Feng K, Zhang L, Chen Y, Jia H. Design, synthesis and biological evaluation of novel dihydrobenzodioxine derivatives as HBV capsid protein inhibitors. Bioorg Chem 2022; 128:106052. [DOI: 10.1016/j.bioorg.2022.106052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/10/2022] [Accepted: 07/20/2022] [Indexed: 11/02/2022]
|
6
|
Huang Y, Liu N, Ning Q, Zhou M, Zang N, Liang T, Wei W. Design, synthesis, and biological evaluation of novel (E)-1-arylethan-1-one O-((3-arylisoxazol-5-yl) methyl) oxime derivatives as potent non-nucleoside HBV inhibitors. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
7
|
Hamed EO, Assy MG, Ouf NH, Elsayed DA, Abdellattif MH. Cyclization of N-acetyl derivative: Novel synthesis – azoles and azines, antimicrobial activities, and computational studies. HETEROCYCL COMMUN 2022. [DOI: 10.1515/hc-2022-0004] [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] Open
Abstract
Abstract
2-Pyridone is considered as one of the most famous efficient pharmaceutical compounds. Many approaches were discovered to synthesize 2-pyridone. In this present research, chloroacetylation of benzylamine at simple conditions, EtONa/EtCOONa produced N-benzyl-2-chloroacetamide 2. Compound 2 was allowed to react with different reagents. These reagents are acetylacetone, ethyl cyanoacetate, ethyl acetoacetate, and diethyl malonate, creating 2-pyridone derivatives with a good yield. The structures of the prepared compounds were elucidated by spectral data (IR, 1HNMR, and 13CNMR). The synthesized compound was tested for its antimicrobial activity against the Gram-positive (Staphylococcus aureus) and the Gram-negative (Escherichia coli) bacteria. In addition, the antifungal activities of the compounds were tested against two fungi (Candida albicans and Aspergillus flavus). Molecular docking studies were applied using the Autodock vina method. Theoretical methods prove all the experimental results by using molecular docking using Autodock vina and by ADEMT studies. The docking results represent that compound 20 had the best docking free energy, and it is the effective compound toward the selected bacterial and fungal proteins. ADME studies showed that the only compound 18 could cross the blood–brain barrier, and compound 15 was predicted to be soluble.
Collapse
Affiliation(s)
- Eman O. Hamed
- Department of Chemistry, Faculty of Science, Zagazig University , Zagazig 44519 , Egypt
| | - Mohamed G. Assy
- Department of Chemistry, Faculty of Science, Zagazig University , Zagazig 44519 , Egypt
| | - Nabil H. Ouf
- Department of Chemistry, Faculty of Science, Zagazig University , Zagazig 44519 , Egypt
| | - Doaa A. Elsayed
- Department of Chemistry, Faculty of Science, Zagazig University , Zagazig 44519 , Egypt
| | - Magda H. Abdellattif
- Department of Chemistry, College of Science, Taif University , Taif , 21944 , Saudi Arabia
| |
Collapse
|
8
|
Sangwan S, Yadav N, Kumar R, Chauhan S, Dhanda V, Walia P, Duhan A. A score years’ update in the synthesis and biological evaluation of medicinally important 2-pyridones. Eur J Med Chem 2022; 232:114199. [DOI: 10.1016/j.ejmech.2022.114199] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/06/2022] [Accepted: 02/10/2022] [Indexed: 12/18/2022]
|
9
|
Design and synthesis of novel quinazolinone derivatives as anti-HBV agents with TLR8 agonist effect. Eur J Med Chem 2022; 231:114159. [DOI: 10.1016/j.ejmech.2022.114159] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/22/2022] [Accepted: 01/25/2022] [Indexed: 01/04/2023]
|
10
|
Mohamed TA, Shaaban IA, Soliman UA, Zoghaib WM. 2‐Hydroxy‐5‐nitropyridine and 5‐nitro‐2‐pyridone: Tautomerism, infrared, Raman, and NMR spectral interpretations, normal coordinate analysis, and DFT calculations. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tarek A. Mohamed
- Department of Chemistry, Faculty of Science Al‐Azhar University (Men's Campus) Cairo Egypt
| | - Ibrahim A. Shaaban
- Department of Chemistry, Faculty of Science Al‐Azhar University (Men's Campus) Cairo Egypt
- Department of Chemistry College of Science, King Khalid University Abha Saudi Arabia
| | - Usama A. Soliman
- Department of Chemistry, Faculty of Science Al‐Azhar University (Men's Campus) Cairo Egypt
- Department of Chemistry, Faculty of Science Jazan University Jazan Saudi Arabia
| | | |
Collapse
|
11
|
Amer MM, Aziz MA, Shehab WS, Abdellattif MH, Mouneir SM. Recent advances in chemistry and pharmacological aspects of 2-pyridone scaffolds. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
12
|
Discovery of New Small Molecule Hits as Hepatitis B Virus Capsid Assembly Modulators: Structure and Pharmacophore-Based Approaches. Viruses 2021; 13:v13050770. [PMID: 33925540 PMCID: PMC8146408 DOI: 10.3390/v13050770] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/05/2021] [Accepted: 04/23/2021] [Indexed: 12/17/2022] Open
Abstract
Hepatitis B virus (HBV) capsid assembly modulators (CpAMs) have shown promise as potent anti-HBV agents in both preclinical and clinical studies. Herein, we report our efforts in identifying novel CpAM hits via a structure-based virtual screening against a small molecule protein-protein interaction (PPI) library, and pharmacophore-guided compound design and synthesis. Curated compounds were first assessed in a thermal shift assay (TSA), and the TSA hits were further evaluated in an antiviral assay. These efforts led to the discovery of two structurally distinct scaffolds, ZW-1841 and ZW-1847, as novel HBV CpAM hits, both inhibiting HBV in single-digit µM concentrations without cytotoxicity at 100 µM. In ADME assays, both hits displayed extraordinary plasma and microsomal stability. Molecular modeling suggests that these hits bind to the Cp dimer interfaces in a mode well aligned with known CpAMs.
Collapse
|
13
|
Computational studies by molecular docking of some antiviral drugs with COVID-19 receptors are an approach to medication for COVID-19. OPEN CHEM 2021. [DOI: 10.1515/chem-2021-0024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Abstract
The COVID-19 outbreak is a matter of concern worldwide due to unavailability of promising treatment comprising medication or vaccination till date. The discovery of antiviral drug is of immense importance in the existing spread of novel coronavirus. The goal of the present study was to evolve an opposite antiviral drug against the novel COVID-19 virus. A directly succeeding perspective would be to use the prevailing influential drugs from several antimicrobial and chemotherapeutic agents. The encouraging approach is to identify promising drug molecules and compounds through virtual screening via molecular docking of FDA-approved drugs and some previously synthesized pyridone and coumarin derivatives for probable therapeutic outcome. In this conceptual milieu, an effort has been made to propose a computational in silico relationship among FDA-approved drugs and coronavirus-associated receptors and proteins. The study results were evaluated on the basis of a dock score by using molecular operating environment. Out of 15 compounds screened, the compounds with the best docking scores toward their targets was 3d. Therefore, compound 3d deserves further investigations and clinical trials as a possible therapeutic inhibitor of the COVID-19 caused by the novel SARS-CoV-2.
Collapse
|
14
|
Fayed EA, Bayoumi AH, Saleh AS, Ezz Al-Arab EM, Ammar YA. In vivo and in vitro anti-inflammatory, antipyretic and ulcerogenic activities of pyridone and chromenopyridone derivatives, physicochemical and pharmacokinetic studies. Bioorg Chem 2021; 109:104742. [PMID: 33647742 DOI: 10.1016/j.bioorg.2021.104742] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 01/07/2023]
Abstract
Throughout this study, we present the victorious synthesis of a novel class of 2(1H)-pyridone molecules, bearing a 4-hydroxyphenyl moiety through a one-pot reaction of 2-cyano-N-(4-hydroxyphenyl)acetamide with cyanoacetamide, acetylacetone or ethyl acetoacetate, and their corresponding aldehydes. In addition, the chromene moiety was introduced into the pyridine skeleton through the cyclization of the cyanoacetamide 2 with salicylaldehyde, followed by treatment with malononitrile, ethyl cyanoacetate, and cyanoacetamide, in order to improve their biological behaviour. Due to their anti-inflammatory, ulcerogenic, and antipyretic characters, the target molecules have undergone in-vitro and in-vivo examination, that display promising results. Moreover, in order to predict the physicochemical and ADME traits of all synthesized compounds and standard reference drugs, paracetamol and phenylbutazone, the in-silico prediction methodology was provided.
Collapse
Affiliation(s)
- Eman A Fayed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11754, Egypt.
| | - Ashraf H Bayoumi
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo 11754, Egypt
| | - Aya S Saleh
- National Organization for Drug Control and Research, Cairo, Egypt
| | | | - Yousry A Ammar
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Cairo 11754, Egypt.
| |
Collapse
|
15
|
Wang MS, Xu HC, Gong Y, Qu RY, Zhuo LS, Huang W. Efficient Arylation of 2,7-Naphthyridin-1(2 H)-one with Diaryliodonium Salts and Discovery of a New Selective MET/AXL Kinase Inhibitor. ACS COMBINATORIAL SCIENCE 2020; 22:457-467. [PMID: 32589005 DOI: 10.1021/acscombsci.0c00074] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
New 8-chloro-2-phenyl-2,7-naphthyridin-1(2H)-one building blocks bearing diverse substitutes on the 2-phenyl group were synthesized via an efficient diaryliodonium salt-based N-arylation strategy with the advantage of mild conditions, short reaction times, and high yields. A small combinatorial library of 8-amino substituted 2-phenyl-2,7-naphthyridin-1(2H)-one was further conveniently constructed based on the above chlorinated naphthyridinones and substituted aniline. Preliminary biochemical screening resulted in the discovery of the new 2,7-naphthyridone-based MET/AXL kinase inhibitors. More importantly, 17c (IC50,MET of 13.8 nM) or 17e (IC50,AXl of 17.2 nM) and 17i (IC50,AXl of 31.8 nM) can efficient selectively inhibit MET or AXL kinase, respectively, while commercial cabozantinib showed no selectivity. The further exploration of the 8-substituted 2-phenyl-2,7-naphthyridin-1(2H)-one combinatorial library would significantly accelerate the discovery of more potent and selective inhibitors against diverse kinases.
Collapse
Affiliation(s)
- Ming-Shu Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Hong-Chuang Xu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Yi Gong
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Ren-Yu Qu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Lin-Sheng Zhuo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Wei Huang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| |
Collapse
|
16
|
Ilazi A, Huang B, de Almeida Campos V, Gademann K. Synthesis of Colibactin Pyrrolidono[3,4- d]pyridones via Regioselective C(sp 3)-H Activation. Org Lett 2020; 22:6858-6862. [PMID: 32815372 DOI: 10.1021/acs.orglett.0c02385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The synthesis of pyrrolidono[3,4-d]pyridones of relevance to putative genotoxic colibactin structures featuring a doubly conjugated 1,6-Michael acceptor system is reported. We investigated and implemented a highly selective Pd-catalyzed C(sp3)-H activation reaction as a key step and further functionalized the pyridone core. Evaluating the role of this structural unit of relevance to colibactin, we found that this structure displayed a high degree of stability toward both acidic conditions and nucleophiles.
Collapse
Affiliation(s)
- Agron Ilazi
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Bin Huang
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Valery de Almeida Campos
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| | - Karl Gademann
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH 8057 Zürich, Switzerland
| |
Collapse
|
17
|
Qiu J, Zhou Q, Zhang Y, Guan M, Li X, Zou Y, Huang X, Zhao Y, Chen W, Gu X. Discovery of novel quinazolinone derivatives as potential anti-HBV and anti-HCC agents. Eur J Med Chem 2020; 205:112581. [PMID: 32791397 DOI: 10.1016/j.ejmech.2020.112581] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 06/10/2020] [Accepted: 06/11/2020] [Indexed: 11/29/2022]
Abstract
As a continuation of earlier works, a series of novel quinazolinone derivatives (5a-s) were synthesized and evaluated for their in vitro anti-HBV and anti-hepatocellular carcinoma cell (HCC) activities. Among them, compounds 5j and 5k exhibited most potent inhibitory effect on HBV DNA replication in both drug sensitive and resistant (lamivudine and entecavir) HBV strains. Interestingly, besides the anti-HBV effect, compound 5k could significantly inhibit the proliferation of HepG2, HUH7 and SK- cells, with IC50 values of 5.44, 6.42 and 6.75 μM, respectively, indicating its potential anti-HCC activity. Notably, the in vitro anti-HCC activity of 5k were more potent than that of positive control 5-fluorouracil and sorafenib. Further studies revealed that compound 5k could induce HepG2 cells apoptosis by dose-dependently upregulating Bad and Bax expression and decreasing Bcl-2 and Bcl-xl protein level. Considering the potent anti-HBV and anti-HCC effect, compound 5k might be a promising lead to develop novel therapeutic agents towards HBV infection and HBV-induced HCC.
Collapse
Affiliation(s)
- 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
| | - Qingqing Zhou
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Yinpeng Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Mingyu Guan
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Xin Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Yueting Zou
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Xuan Huang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Yali Zhao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Wang Chen
- Department of Pharmaceutical Analysis, School of 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.
| |
Collapse
|
18
|
Zhang H, Lu G. Synthesis of celastrol derivatives as potential non-nucleoside hepatitis B virus inhibitors. Chem Biol Drug Des 2020; 96:1380-1386. [PMID: 32573976 DOI: 10.1111/cbdd.13746] [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: 05/30/2019] [Revised: 01/30/2020] [Accepted: 06/05/2020] [Indexed: 12/19/2022]
Abstract
A series of para-quinone methide (pQM) moiety and C-20- modified derivatives of celastrol were synthesized and evaluated for their inhibitory effect on the secretion of HBsAg and HBeAg as well as the inhibitory effect against HBV DNA replication. The results suggested that amidation of C-20 carboxylic group could generate derivatives with good anti-HBV profile, among them compound 14 showed the best inhibitory activity on the secretion of HBsAg (IC50 = 11.9 µμ) and HBeAg (IC50 = 13.1 µμ) with SI of 3.3 and 3.0, respectively. In addition, 14 also showed potent inhibitory effect against HBV DNA replication (48.5 ± 15.1%, 25 µM). This is, to our knowledge, the first report of celastrol derivatives as potential non-nucleoside HBV inhibitors.
Collapse
Affiliation(s)
- He Zhang
- Beijing BeiqinBiotech Co. Ltd., Xinggu Economic Development Zone, Beijing, China
| | - Gongxi Lu
- Beijing BeiqinBiotech Co. Ltd., Xinggu Economic Development Zone, Beijing, China
| |
Collapse
|
19
|
Zhang M, Lan H, Li N, Zhong Q, Zhu H, Liu C, Zhao H. Photocatalyst-Free Singlet Oxygen-Induced Oxygenation: A Strategy for the Preparation of 5-Cyano-2-pyridones Driven by Blue-Light Irradiation. J Org Chem 2020; 85:8279-8286. [DOI: 10.1021/acs.joc.0c00963] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Mengmeng Zhang
- School of Pharmacy, North China University of Science and Technology, Tangshan, Hebei 063210, P. R. China
| | - Hanyang Lan
- School of Pharmacy, North China University of Science and Technology, Tangshan, Hebei 063210, P. R. China
| | - Nan Li
- School of Pharmacy, North China University of Science and Technology, Tangshan, Hebei 063210, P. R. China
| | - Qidi Zhong
- School of Pharmacy, North China University of Science and Technology, Tangshan, Hebei 063210, P. R. China
| | - Hao Zhu
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063210, P. R. China
| | - Chunyan Liu
- School of Pharmacy, North China University of Science and Technology, Tangshan, Hebei 063210, P. R. China
| | - Hongwu Zhao
- College of Life Science and Bio-engineering, Beijing University of Technology, Beijing, 100124, P. R. China
| |
Collapse
|
20
|
Yu J, Jia H, Guo X, Desta S, Zhang S, Zhang J, Ding X, Liang X, Liu X, Zhan P. Design, synthesis, and evaluation of novel heteroaryldihydropyrimidine derivatives as non‐nucleoside hepatitis B virus inhibitors by exploring the solvent‐exposed region. Chem Biol Drug Des 2020; 95:567-583. [DOI: 10.1111/cbdd.13512] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 12/28/2018] [Accepted: 02/16/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Ji Yu
- Department of Medicinal Chemistry Key Laboratory of Chemical Biology (Ministry of Education) School of Pharmaceutical Sciences Shandong University Jinan China
| | - Haiyong Jia
- School of Pharmacy Weifang Medical University Weifang China
| | - Xiaowei Guo
- Department of Immunology Key Laboratory for Experimental, Teratology of Ministry of Education Shandong Provincial Key Laboratory of Infection and Immunology Shandong University School of Medicine Jinan China
| | - Samuel Desta
- Department of Medicinal Chemistry Key Laboratory of Chemical Biology (Ministry of Education) School of Pharmaceutical Sciences Shandong University Jinan China
| | - Shuo Zhang
- Department of Medicinal Chemistry Key Laboratory of Chemical Biology (Ministry of Education) School of Pharmaceutical Sciences Shandong University Jinan China
| | - Jian Zhang
- Department of Medicinal Chemistry Key Laboratory of Chemical Biology (Ministry of Education) School of Pharmaceutical Sciences Shandong University Jinan China
| | - Xiao Ding
- Department of Medicinal Chemistry Key Laboratory of Chemical Biology (Ministry of Education) School of Pharmaceutical Sciences Shandong University Jinan China
| | - Xiaohong Liang
- Department of Immunology Key Laboratory for Experimental, Teratology of Ministry of Education Shandong Provincial Key Laboratory of Infection and Immunology Shandong University School of Medicine Jinan China
| | - Xinyong Liu
- Department of Medicinal Chemistry Key Laboratory of Chemical Biology (Ministry of Education) School of Pharmaceutical Sciences Shandong University Jinan China
| | - Peng Zhan
- Department of Medicinal Chemistry Key Laboratory of Chemical Biology (Ministry of Education) School of Pharmaceutical Sciences Shandong University Jinan China
| |
Collapse
|
21
|
Wu Y, Jhong Y, Lin H, Swain SP, Tsai HG, Hou D. Organocatalyzed Enantioselective Michael Addition of 2‐Hydroxypyridines and α,β‐Unsaturated 1,4‐Dicarbonyl Compounds. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900997] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Yu‐Chun Wu
- Department of ChemistryNational Central University 300 Jhong-Da Rd., Jhong-Li Taoyuan Taiwan 32001
| | - Yi Jhong
- Department of ChemistryNational Central University 300 Jhong-Da Rd., Jhong-Li Taoyuan Taiwan 32001
| | - Hui‐Jie Lin
- Department of ChemistryNational Central University 300 Jhong-Da Rd., Jhong-Li Taoyuan Taiwan 32001
| | - Sharada Prasanna Swain
- Department of ChemistryNational Central University 300 Jhong-Da Rd., Jhong-Li Taoyuan Taiwan 32001
- Assistant Professor-Selection Grade, School of Health SciencesUniversity of Petroleum and Energy Studies Bidholi, Dehradun- 248007 India
| | - Hui‐Hsu Gavin Tsai
- Department of ChemistryNational Central University 300 Jhong-Da Rd., Jhong-Li Taoyuan Taiwan 32001
- Research Center of New Generation Light Driven Photovoltaic Module InstitutionNational Central University 300 Jhong-Da Rd., Jhong-Li Taoyuan Taiwan 32001
| | - Duen‐Ren Hou
- Department of ChemistryNational Central University 300 Jhong-Da Rd., Jhong-Li Taoyuan Taiwan 32001
| |
Collapse
|
22
|
Qiu J, Chen W, Zhang Y, Zhou Q, Chen J, Yang L, Gao J, Gu X, Tang D. Assessment of quinazolinone derivatives as novel non-nucleoside hepatitis B virus inhibitors. Eur J Med Chem 2019; 176:41-49. [PMID: 31091479 DOI: 10.1016/j.ejmech.2019.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 02/09/2019] [Accepted: 05/06/2019] [Indexed: 02/07/2023]
Abstract
Hepatitis B virus (HBV) infection is a worldwide public health issue. Search for novel non-nucleoside anti-HBV agents is of great importance. In the present study, a series of quinazolinones derivatives (4a-t and 5a-f) were synthesized and evaluated as novel anti-HBV agents. Among them, compounds 5e and 5f could significantly inhibit HBV DNA replication with IC50 values of 1.54 μM and 0.71 μM, respectively. Interestingly, the selective index values of 5f was higher than that of lead compound K284-1405, suggesting 5f possessed relatively safety profile than K284-1405. Notably, 5e and 5f exhibited remarkably anti-HBV activities against lamivudine and entecavir resistant HBV strain with IC50 values of 1.90 and 0.84 μM, confirming their effectiveness against resistant HBV strain. In addition, molecular docking studies indicated that compounds 5e and 5f could well fit into the dimer-dimer interface of HBV core protein dominated by hydrophobic interactions. Notably, their binding modes were different from the lead compound K284-1405, which may be attributed to the additional substituent groups in the quinazolinone scaffold. Taken together, 5e and 5f possessed novel chemical structure and potent anti-HBV activity against both drug sensitive and resistant HBV strains, thus warranting further research as potential non-nucleoside anti-HBV candidates.
Collapse
Affiliation(s)
- 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
| | - Wang Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Yinpeng Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Qingqing Zhou
- Department of Pharmaceutical Analysis, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, People's Republic of China
| | - Jing Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical 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
| | - Jian Gao
- 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.
| | - Daoquan Tang
- 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.
| |
Collapse
|
23
|
Khalifa NM, Haiba ME, Taha MM, Al-Omar MA. Synthesis and Antibacterial Assay of Some New Pyrenyl Pyridine Candidates. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219020245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
24
|
Shchur IV, Shchegolkov EV, Burgart YV, Triandafilova GA, Maslova VV, Solodnikov SY, Krasnykh OP, Borisevich SS, Khursan SL, Saloutin VI. Synthesis and Biological Activity of 4-Cycloaminopolyfluorosalicylic Acids. ChemistrySelect 2019. [DOI: 10.1002/slct.201803523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Irina V. Shchur
- The Ural Branch of the Russian Academy of Sciences; Postovsky Institute of Organic Synthesis; S. Kovalevskoy Str., 22 Ekaterinburg 620990 Russia
| | - Evgenii V. Shchegolkov
- The Ural Branch of the Russian Academy of Sciences; Postovsky Institute of Organic Synthesis; S. Kovalevskoy Str., 22 Ekaterinburg 620990 Russia
- Ural Federal University named after the First President of Russia B.N. Yeltsin; Mira Str., 19 Ekaterinburg 620002 Russia
| | - Yanina V. Burgart
- The Ural Branch of the Russian Academy of Sciences; Postovsky Institute of Organic Synthesis; S. Kovalevskoy Str., 22 Ekaterinburg 620990 Russia
- Ural Federal University named after the First President of Russia B.N. Yeltsin; Mira Str., 19 Ekaterinburg 620002 Russia
| | | | | | | | | | - Sophia S. Borisevich
- The Russian Academy of Sciences; Ufa Institute of Chemistry; Octyabrya Av., 71 Ufa 450078 Russia
| | - Sergey L. Khursan
- The Russian Academy of Sciences; Ufa Institute of Chemistry; Octyabrya Av., 71 Ufa 450078 Russia
| | - Victor I. Saloutin
- The Ural Branch of the Russian Academy of Sciences; Postovsky Institute of Organic Synthesis; S. Kovalevskoy Str., 22 Ekaterinburg 620990 Russia
- Ural Federal University named after the First President of Russia B.N. Yeltsin; Mira Str., 19 Ekaterinburg 620002 Russia
| |
Collapse
|
25
|
Ziegler DS, Greiner R, Lumpe H, Kqiku L, Karaghiosoff K, Knochel P. Directed Zincation or Magnesiation of the 2-Pyridone and 2,7-Naphthyridone Scaffold Using TMP Bases. Org Lett 2018; 19:5760-5763. [PMID: 29039957 DOI: 10.1021/acs.orglett.7b02690] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A regioselective zincation of the 2-pyridone and 2,7-naphthyridone scaffolds has been developed. Zincations of the methoxyethoxymethyl (MEM)-protected compounds using TMP2Zn·2MgCl2·2LiCl (TMP = 2,2,6,6-tetramethylpiperidyl) followed by trapping with electrophiles provided functionalized 2-pyridones and 2,7-naphthyridones. I/Mg exchange of iodinated 2-pyridone and 2,7-naphthyridone using i-PrMgCl·LiCl afforded magnesiated intermediates that reacted with electrophiles. A second magnesiation of the 2-pyridone scaffold was achieved by using TMPMgCl·LiCl. Additionally, we report CoCl2-catalyzed cross-couplings of the 1-chloro-2,7-naphthyridines with arylzinc halides.
Collapse
Affiliation(s)
- Dorothée S Ziegler
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Robert Greiner
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Henning Lumpe
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Laura Kqiku
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Konstantin Karaghiosoff
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| | - Paul Knochel
- Department of Chemistry, Ludwig-Maximilians-University Munich , Butenandtstr. 5-13, 81377 Munich, Germany
| |
Collapse
|
26
|
Wang J, Zhang L, Zhao J, Zhang Y, Liu Q, Tian C, Zhang Z, Liu J, Wang X. 2-Arylthio-5-iodo pyrimidine derivatives as non-nucleoside HBV polymerase inhibitors. Bioorg Med Chem 2018; 26:1573-1578. [PMID: 29459146 DOI: 10.1016/j.bmc.2018.02.003] [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: 12/17/2017] [Revised: 01/31/2018] [Accepted: 02/02/2018] [Indexed: 11/16/2022]
Abstract
In this study, a series of 2-arylthio-5-iodo pyrimidine derivatives, as non-nucleoside hepatitis B virus inhibitors, were evaluated and firstly reported as potential anti-HBV agents. To probe the mechanism of active agents, DHBV polymerase was isolated and a non-radioisotopic assay was established for measuring HBV polymerase. The biological results demonstrated that 2-arylthio-5-iodo pyrimidine derivatives targeted HBV polymerase. In addition, pharmacophore models were constructed for future optimization of lead compounds. Further study will be performed for the development of non-nucleoside anti-HBV agents.
Collapse
Affiliation(s)
- Jie Wang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Liang Zhang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Jianxiong Zhao
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Yu Zhang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Qingchuan Liu
- Beijing Weijian Jiye Institute of Biotechnology, 100041, China
| | - Chao Tian
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Zhili Zhang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China
| | - Junyi Liu
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China.
| | - Xiaowei Wang
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, 100191, China.
| |
Collapse
|
27
|
Pandit AB, Savant MM, Ladva KD. An Efficient One-Pot Synthesis of Highly Substituted Pyridone Derivatives and Their Antimicrobial and Antifungal Activity. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Archana B. Pandit
- Department of Chemistry; Shree M. & N. Virani Science College; Rajkot 360005 Gujarat India
| | - Mahesh M. Savant
- Industrial Chemistry; Shree M. & N. Virani Science College; Rajkot 360005 Gujarat India
| | - Kartik D. Ladva
- Department of Chemistry; Shree M. & N. Virani Science College; Rajkot 360005 Gujarat India
| |
Collapse
|
28
|
Singh US, Mulamoottil VA, Chu CK. 2′-Fluoro-6′-methylene carbocyclic adenosine and its phosphoramidate prodrug: A novel anti-HBV agent, active against drug-resistant HBV mutants. Med Res Rev 2018; 38:977-1002. [DOI: 10.1002/med.21490] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 01/04/2018] [Accepted: 01/12/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Uma S. Singh
- Department of Pharmaceutical and Biomedical Sciences; University of Georgia; Athens GA USA
| | | | - Chung K. Chu
- Department of Pharmaceutical and Biomedical Sciences; University of Georgia; Athens GA USA
| |
Collapse
|
29
|
Reaction of N-(3-oxoalkenyl)chloroacetamides with sodium p-toluenesulfinate – synthesis of 3-tosylpyridin-2(1Н)-ones. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2215-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|