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A Multifield Study on Dimethyl Acetylenedicarboxylate: A Reagent Able to Build a New Cycle on Diaminoimidazoles. Molecules 2022; 27:molecules27103326. [PMID: 35630803 PMCID: PMC9147549 DOI: 10.3390/molecules27103326] [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: 04/22/2022] [Revised: 05/16/2022] [Accepted: 05/20/2022] [Indexed: 11/23/2022] Open
Abstract
A new effective method for the synthesis of imidazo[1,5-b]pyridazines derivatives (yields = 68–89%) by the interaction of 1,2-diamino-4-phenylimidazole with DMAD, in methanol and in the presence of a catalytic amount of acetic acid, is proposed. The course of reaction has been examined by classical organic methods, HPLC-MS analysis, and quantum-chemical calculations.
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Naikoo RA, Kumar R, Kumar V, Bhargava G. Recent Developments in the Synthesis of Bicyclic Condensed Pyrimidinones. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220112152330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Functionalized bicyclic pyrimidinones and their derivatives are significant heterocyclic scaffolds being their all-around prevalence in biologically potent compounds. In several attempts to explore the different synthetic methodologies for the construction of bicyclic condensed pyrimidinones, different researchers from all across the globe have reported numerous substantial methods. In the present review, considerable work has been critically compiled on the synthesis of substituted and functionalized bicyclic pyrimidinones from 2000 onwards.
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Affiliation(s)
- Rayees Ahmad Naikoo
- Department of Chemical Sciences, IKG Punjab Technical University, Kapurthala 144603, Punjab, India
| | - Rupesh Kumar
- Department of Chemical Sciences, IKG Punjab Technical University, Kapurthala 144603, Punjab, India
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Gaurav Bhargava
- Department of Chemical Sciences, IKG Punjab Technical University, Kapurthala 144603, Punjab, India
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Balewski Ł, Sączewski F, Bednarski PJ, Wolff L, Nadworska A, Gdaniec M, Kornicka A. Synthesis, Structure and Cytotoxicity Testing of Novel 7-(4,5-dihydro-1 H-imidazol-2-yl)-2-aryl-6,7-dihydro-2 H-imidazo[2,1- c][1,2,4]triazol-3(5 H)-Imine Derivatives. Molecules 2020; 25:E5924. [PMID: 33327611 PMCID: PMC7765142 DOI: 10.3390/molecules25245924] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 11/24/2022] Open
Abstract
The appropriate 1-arylhydrazinecarbonitriles 1a-c are subjected to the reaction with 2-chloro-4,5-dihydro-1H-imidazole (2), yielding 7-(4,5-dihydro-1H-imidazol-2-yl)-2-aryl-6,7-dihydro-2H-imidazo[2,1-c][1,2,4]triazol-3(5H)-imines 3a-c, which are subsequently converted into the corresponding amides 4a-e, 8a-c, sulfonamides 5a-n, 9, ureas 6a-I, and thioureas 7a-d. The structures of the newly prepared derivatives 3a-c, 4a-e, 5a-n, 6a-i, 7a-d, 8a-c, and 9 are confirmed by IR, NMR spectroscopic data, as well as single-crystal X-ray analyses of 5e and 8c. The in vitro cytotoxic potency of these compounds is determined on a panel of human cancer cell lines, and the relationships between structure and antitumor activity are discussed. The most active 4-chloro-N-(2-(4-chlorophenyl)-7-(4,5-dihydro-1H-imidazol-2-yl)-6,7-dihydro-2H-imidazo[2,1-c][1,2,4]triazol-3(5H)-ylidene)benzamide (4e) and N-(7-(4,5-dihydro-1H-imidazol-2-yl)-2-(p-tolyl)-6,7-dihydro-2H-imidazo[2,1-c][1,2,4]triazol-3(5H)-ylidene)-[1,1'-biphenyl]-4-sulfonamide (5l) inhibits the growth of the cervical cancer SISO and bladder cancer RT-112 cell lines with IC50 values in the range of 2.38-3.77 μM. Moreover, N-(7-(4,5-dihydro-1H-imidazol-2-yl)-2-phenyl-6,7-dihydro-2H-imidazo[2,1-c][1,2,4]triazol-3(5H)-ylidene)-4-phenoxybenzenesulfonamide (5m) has the best selectivity towards the SISO cell line and induces apoptosis in this cell line.
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Affiliation(s)
- Łukasz Balewski
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland; (F.S.); (A.N.); (A.K.)
| | - Franciszek Sączewski
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland; (F.S.); (A.N.); (A.K.)
| | - Patrick J. Bednarski
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, F.-L. Jahn Strasse 17, D-17489 Greifswald, Germany; (P.J.B.); (L.W.)
| | - Lisa Wolff
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, University of Greifswald, F.-L. Jahn Strasse 17, D-17489 Greifswald, Germany; (P.J.B.); (L.W.)
| | - Anna Nadworska
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland; (F.S.); (A.N.); (A.K.)
| | - Maria Gdaniec
- Faculty of Chemistry, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
| | - Anita Kornicka
- Department of Chemical Technology of Drugs, Faculty of Pharmacy, Medical University of Gdańsk, Al. Gen. J. Hallera 107, 80-416 Gdańsk, Poland; (F.S.); (A.N.); (A.K.)
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Hassan AY, Sarg MT, El Deeb MA, El Rabeeb SI. Anticancer Activity Screening of a Series of Imidazo[2,1‐c][1,2,4]triazolone and Imidazo[1,2 ‐b][1,2,4]triazolone Derivatives Synthesized Under Solvent Free Conditions. ChemistrySelect 2020. [DOI: 10.1002/slct.201904624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aisha Y. Hassan
- Organic Chemistry DepartmentFaculty of Science (Girls), Al-Azhar University, Youssef Abbas street Nasr City, Cairo Egypt
| | - Marwa T. Sarg
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls)Al-Azhar University, Youssef Abbas street, Nasr City Cairo Egypt Faculty of pharmacy (Girls), Al-Azhar University, Youssef Abbas street, Nasr City, Cairo, Egypt
| | - Moshira A. El Deeb
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls)Al-Azhar University, Youssef Abbas street, Nasr City Cairo Egypt Faculty of pharmacy (Girls), Al-Azhar University, Youssef Abbas street, Nasr City, Cairo, Egypt
| | - Shaimaa I. El Rabeeb
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls)Al-Azhar University, Youssef Abbas street, Nasr City Cairo Egypt Faculty of pharmacy (Girls), Al-Azhar University, Youssef Abbas street, Nasr City, Cairo, Egypt
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Mani Chandrika KVS, Sharma S. Promising antifungal agents: A minireview. Bioorg Med Chem 2020; 28:115398. [PMID: 32115335 DOI: 10.1016/j.bmc.2020.115398] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 02/14/2020] [Accepted: 02/19/2020] [Indexed: 11/24/2022]
Abstract
In the recent past, prevalence of life threatening fungal diseases have increased rapidly in immune-compromised cases such as acquired immunodeficiency syndrome (AIDS), cancer, organ transplant etc. Side by side, the appearance of drug resistance to the presently available antifungal therapeutics is on a rapid rise. It has become a top priority for the academia and pharmaceutical industries to develop new antifungal agents able to combat this resistance, and at the same time, possess potential broad spectrum of activity and minimum toxicity. An understanding of the pharmacological interactions between antifungal agents and their targets offers opportunities for design of new therapeutics. This review discusses the various methodology of drug design, structure activity relationships (SARs), and mode of action of variety of new antifungal agents.
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Affiliation(s)
- K V S Mani Chandrika
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Anantapur Campus, Anantapur 515001, A.P., India
| | - Sahida Sharma
- Department of Chemistry, Sri Sathya Sai Institute of Higher Learning, Anantapur Campus, Anantapur 515001, A.P., India.
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Facile and regioselective synthesis of new fluorinated [1,2,4]-triazolo[4,3-a]pyrimidin-7(1H)-one derivatives from fluorinated alkynes. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2019.109390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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El-Aal EA, Fattah HA, Osman N, Seliem I. Synthesis of Novel Derivatives of Imidazo[2,1-c][1,2,4]Triazine from Biologically Active 4-Arylidene-2-Hydrazino-1-Phenyl-1H-Imidazol-5(4H)-Ones and Evaluation of their Antimicrobial Activity. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14499306304628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
4-Arylidene-2-hydrazino-1-phenyl-1H-imidazolin-5(4H)-ones were synthesised and used as key intermediates for the synthesis of novel imidazo[2,1-c][1,2,4]triazine derivatives. The new imidazo[2,1-c][1,2,4]triazine derivatives were obtained via the reaction of the hydrazino derivatives with pyruvic acid, chloroacetyl chloride and phenacyl bromide derivatives respectively. Structures of the newly synthesised compounds were confirmed using spectral data as well as elemental analysis. Seven compounds were evaluated for their antimicrobial activity with minimum inhibitory concentration (MIC) values against several reference strains of bacteria and fungi, with ampicillin, gentamicin and amphotericin B used as comparison drugs. It was observed that most of the evaluated compounds showed high antibacterial as well as antifungal activities. 6-(4-Chlorobenzylidene)-4-(4-methylphenyl)-8-phenyl-6,8-dihydroimidazo-[2,1-c][1,2,4] triazin-7(2H)-one was the most potent compound with high inhibition zones and low MIC values.
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Affiliation(s)
- Eatedal Abd El-Aal
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Hanan Abdel Fattah
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Nermine Osman
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Israa Seliem
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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