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Bahman Jahromi E, Mehranpour A. A Novel Synthesis of New 1,8-Naphthyridine Derivatives Using the Reaction of Vinamidinium Salts With 2,6-Diaminopyridine. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Jha RR, Danodia AK, Verma AK. Synthesis of fused heterocycles via preferential hydroamination of o-haloarylalkynes over N-arylation and successive intramolecular CC bond formation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sarkar S, Das DK, Khan AT. Sodium-Hydroxide-Mediated Synthesis of Highly Functionalized [1,6]-Naphthyridines in a One-Pot Pseudo Five-Component Reaction. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300894] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Verma AK, Kotla SKR, Choudhary D, Patel M, Tiwari RK. Silver-Catalyzed Tandem Synthesis of Naphthyridines and Thienopyridines via Three-Component Reaction. J Org Chem 2013; 78:4386-401. [DOI: 10.1021/jo400400c] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Akhilesh K. Verma
- Synthetic Organic
Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Siva K. Reddy Kotla
- Synthetic Organic
Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Deepak Choudhary
- Synthetic Organic
Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Monika Patel
- Synthetic Organic
Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rakesh K. Tiwari
- Department of Biomedical & Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
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Sankappa Rai U, Isloor AM, shetty P, Vijesh AM, Prabhu N, Isloor S, Thiageeswaran M, Fun HK. Novel chromeno [2,3-b]-pyrimidine derivatives as potential anti-microbial agents. Eur J Med Chem 2010; 45:2695-9. [PMID: 20231044 DOI: 10.1016/j.ejmech.2010.02.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Revised: 02/15/2010] [Accepted: 02/16/2010] [Indexed: 10/19/2022]
Abstract
An efficient, microwave irradiated synthesis of novel chromeno[2,3-b]-pyrimidine derivatives was carried out. 2-amino-3,4-dihydro-2H-chromene-3-carbonitrile was converted into imine using N,N-Dimethylacetaldehyde dimethylacetal to give the core intermediate, which was used for the preparation of chromenopyrimidine library, using acetic acid and different amine in microwave irradiation for 5 min. Structures of newly synthesized compounds were confirmed by spectral studies. Compound 6g was characterized by single crystal X-ray analysis. All the compounds were also screened for their anti-microbial activity. Few of the compounds are found to be potential antimicrobials.
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Affiliation(s)
- U Sankappa Rai
- Chemistry Department, Manipal Institute of Technology, Manipal, India
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Fun HK, Chantrapromma S, Rai S, Shetty P, Isloor AM. N-(1-Naphthyl)-10 H-9-oxa-1,3-diazaanthracen-4-amine. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o523-4. [PMID: 21582186 PMCID: PMC2968620 DOI: 10.1107/s1600536809004693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Accepted: 02/09/2009] [Indexed: 11/23/2022]
Abstract
In the molecule of the title compound, C21H15N3O, the 10H-9-oxa-1,3-diazaanthracene ring system is slightly bent, with dihedral angles of 3.99 (6) and 4.80 (6)° between the pyran ring and the pyrimidine and benzene rings, respectively. This ring system makes a dihedral angle of 85.23 (3)° with the naphthalene plane. In the crystal packing, molecules are linked by N—H⋯N hydrogen bonds into chains along the a axis and these chains are stacked along the b axis. The crystal is further stabilized by weak C—H⋯N and C—H⋯π interactions.
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Everson da Silva L, Carlos Joussef A, José Nunes R, Navakoski de Oliveira K. Synthesis of 1,8‐Naphthyridine‐4(1H)‐one Sulfonamides by Thermolysis of 2‐Aminopyridinemethylene (Meldrum's Acid) Derivative. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910701648744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Luiz Everson da Silva
- a Department of Chemistry , Federal University of Mato Grosso State (UFMT) , Cuiabá, MT, Brazil
| | - Antonio Carlos Joussef
- b Department of Chemistry , Federal University of Santa Catarina State (UFSC) , Florianópolis SC, Brazil
| | - Ricardo José Nunes
- b Department of Chemistry , Federal University of Santa Catarina State (UFSC) , Florianópolis SC, Brazil
| | - Kely Navakoski de Oliveira
- b Department of Chemistry , Federal University of Santa Catarina State (UFSC) , Florianópolis SC, Brazil
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Suzuki H, Sakai N, Iwahara R, Fujiwaka T, Satoh M, Kakehi A, Konakahara T. Novel synthesis of 7-fluoro-8-(trifluoromethyl)- 1H-1,6-naphthyridin-4-one derivatives: intermolecular cyclization of an N-silyl-1-azaallyl anion with perfluoroalkene and subsequent intramolecular skeletal transformation of the resulting pentasubstituted pyridines. J Org Chem 2007; 72:5878-81. [PMID: 17602590 DOI: 10.1021/jo070564m] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, fluorine-containing pentasubstituted pyridine derivatives 9a-m were prepared regioselectively in good yields by the intermolecular cyclization of a variety of N-silyl-1-azaallylic anion intermediates 7, which were generated from a functionalized silane 5 and an aromatic/aliphatic nitrile 6 with perfluoroalkene 8. Also, 7-fluoro-8-(trifluoromethyl)-1H-1,6-naphthyridin-4-one derivatives 11a-k were synthesized in excellent yields by the subsequent base-promoted intramolecular skeletal transformation of the resulting pyridine derivatives 10a-k.
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Affiliation(s)
- Hiroyuki Suzuki
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba 278-8510, Japan
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Falardeau G, Lachance H, St-Pierre A, Yannopoulos CG, Drouin M, Bédard J, Chan L. Design and synthesis of a potent macrocyclic 1,6-naphthyridine anti-human cytomegalovirus (HCMV) inhibitors. Bioorg Med Chem Lett 2005; 15:1693-5. [PMID: 15745823 DOI: 10.1016/j.bmcl.2005.01.050] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2003] [Revised: 01/17/2005] [Accepted: 01/19/2005] [Indexed: 11/19/2022]
Abstract
A novel class of macrocyclic 1,6-napthyridines designed to adopt the presumed bioactive conformation of anti-HCMV acyclic 1,6-napthyridines are described. Both 14- and 15-membered macrocycles were shown to be highly potent against HCMV HSV-1 and HSV-2.
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Affiliation(s)
- Guy Falardeau
- ViroChem Pharma Inc., 275 Armand-Frappier Blvd., Laval, Québec, Canada H7V 4A7.
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Suresh T, Nandha kumar R, Mohan PS. A Facile approach to dibenzo [bf| [1,6] naphthyridines using Vilsmeier Conditions. HETEROCYCL COMMUN 2003. [DOI: 10.1515/hc.2003.9.1.83] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abstract
While the treatment of herpes simplex virus with acyclovir and similar nucleoside analogues was one of the first success stories in antiviral chemotherapy, substantial unmet medical needs remain for herpesvirus diseases. In particular, the increasing numbers of immunosuppressed people due to AIDS, transplantation, cancer and aging has driven the need for improved antivirals to treat diseases caused by human cytomegalovirus (HCMV). Currently available drugs for the treatment of HCMV diseases are less than ideal agents due to issues of toxicity, modest efficacy and poor oral bioavailability. High throughput screening of large compound collections for inhibitors of specific viral enzymes or inhibition of viral growth in cell culture have identified a number of new HCMV inhibitors at several pharmaceutical companies. These compounds act by inhibition of novel molecular targets such as the viral protein kinase, viral protease and viral proteins involved in DNA cleavage/packaging. In addition, novel non-nucleoside inhibitors of the herpesvirus DNA polymerase have recently been described. This review will summarise some of these research efforts and will focus on non-nucleoside compounds that directly inhibit a viral process.
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Affiliation(s)
- Michael W Wathen
- Infectious Diseases Research, Pharmacia Corp, Kalamazoo, MI 49001, USA.
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Chan L, Stefanac T, Lavallée JF, Jin H, Bédard J, May S, Falardeau G. Design and synthesis of new potent human cytomegalovirus (HCMV) inhibitors based on internally hydrogen-bonded 1,6-naphthyridines. Bioorg Med Chem Lett 2001; 11:103-5. [PMID: 11206437 DOI: 10.1016/s0960-894x(00)00607-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
1,6-Naphthyridine-2-carboxylic acid benzylamides are potent anti-HCMV compounds. Replacement of the amide moiety by other groups containing internal hydrogen bonds was undertaken to extend the SAR. Our results indicated that the urca derivatives showed very good activity.
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Affiliation(s)
- L Chan
- BioChem Pharma Inc., Laval, Québec, Canada
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