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El-Kalyoubi S, Agili F, Adel I, Tantawy MA. Novel Uracil Derivatives Depicted Potential Anticancer Agents: In Vitro, Molecular Docking, and ADME Study. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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2
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Darehkordi A, Ghazi S. An efficient ultrasonic-assisted synthesis of ethyl-5-(aryl)-2-(2-alkokxy-2-oxoethylidene)-7-methyl-3-oxo-3, 5-dihydro-2H-thiazolo [3, 2-a] pyrimidine-6-carboxylate derivatives. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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3
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El Sayed MT, Hussein HAR, Elebiary NM, Hassan GS, Elmessery SM, Elsheakh AR, Nayel M, Abdel-Aziz HA. Tyrosine kinase inhibition effects of novel Pyrazolo[1,5-a]pyrimidines and Pyrido[2,3-d]pyrimidines ligand: Synthesis, biological screening and molecular modeling studies. Bioorg Chem 2018; 78:312-323. [PMID: 29625271 DOI: 10.1016/j.bioorg.2018.03.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 03/02/2018] [Accepted: 03/07/2018] [Indexed: 01/04/2023]
Abstract
Tyrosine kinases are one of the most critical mediators in the signaling path way. Late studies have proved the part of tyrosine kinases in the pathophysiology of cancer diseases. This current research paper has focused on investigating the novel Pyrazolo[1,5-a]pyrimidines and Pyrido[2,3-d]pyrimidines as a small molecules that can inhibit tyrosine kinase in cancer cells. NCI protocol was applied to test the antitumor activity of such compounds. Leukemia and renal cancer cell lines proved to be sensitive to some derivatives such as 6b-d, 9a and 11 with GI% values ranging from 30.4 to 41.3%. In addition, compound 11 proved to be the most active against MCF-7 with GI% 62.5. The synthesized compounds were also evaluated for their inhibitory effects against EGFR kinase enzyme. Compound 9b proved to be the most active one among the synthesized series with inhibition % value of 81.72 at 25 nM concentration and IC50 8.4 nM which is very close to the reference drug Sorafenib. In vitro cytotoxicity test was also performed using the MCF-7 breast cell line. Computer modeling using the active site of tyrosine kinase as a template and the most active tyrosine kinase inhibitors were calculated. Docking studies of the synthesized compounds into the active site of EGFR kinase domain showed good agreement with the obtained biological results.
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Affiliation(s)
- Mardia T El Sayed
- Deparment of Applied Organic Chemistry, National Research Centre, 12622 Dokki, Egypt
| | - Hoda A R Hussein
- Department of Photochemistry, National Research Centre, 12622 Dokki, Egypt
| | - Nora M Elebiary
- Department of Green Chemistry, National Research Centre, 12622 Dokki, Egypt
| | - Ghada S Hassan
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt.
| | - Shahenda M Elmessery
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt
| | - Ahmed R Elsheakh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt
| | - Mohamed Nayel
- National Cancer Institute, Chemotherapeutic Agents Repository, Fisher BioServices, Germantown, MD 20874, USA
| | - Hatem A Abdel-Aziz
- Deparment of Applied Organic Chemistry, National Research Centre, 12622 Dokki, Egypt
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4
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Machicao PA, Burt SR, Christensen RK, Lohner NB, Singleton J, Peterson MA. An efficient microwave assisted synthesis of N′-aryl/(alkyl)-substituted N-(4-hydroxy-6-phenylpyrimidin-2-yl)guanidines: Scope and limitations. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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5
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Porcu A, Lobina C, Giunta D, Solinas M, Mugnaini C, Castelli MP. In vitro and in vivo pharmacological characterization of SSD114, a novel GABAB positive allosteric modulator. Eur J Pharmacol 2016; 791:115-123. [PMID: 27578262 DOI: 10.1016/j.ejphar.2016.08.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 08/25/2016] [Accepted: 08/26/2016] [Indexed: 12/18/2022]
Abstract
Positive allosteric modulators (PAMs) of the GABAB receptor have emerged as a novel approach to the pharmacological manipulation of the GABAB receptor, enhancing the effects of receptor agonists with few side effects. Here, we identified N-cyclohexyl-4-methoxy-6-(4-(trifluoromethyl)phenyl)pyrimidin-2-amine (SSD114) as a new compound with activity as a GABAB PAM in in vitro and in vivo assays. SSD114 potentiated GABA-stimulated [35S]GTPγS binding to native GABAB receptors, whereas it had no effect when used alone. Its effect on GTPγS stimulation was suppressed when GABA-induced activation was blocked with CGP54626, a competitive antagonist of the GABAB receptor. SSD114 failed to potentiate WIN55,212,2-, morphine- and quinpirole-induced [35S]GTPγS binding to cortical and striatal membranes, respectively, indicating that it is a selective GABAB PAM. Increasing SSD114 fixed concentrations induced a leftward shift of the GABA concentration-response curve, enhancing the potency of GABA rather than its efficacy. SSD114 concentration-response curves in the presence of fixed concentrations of GABA (1, 10, and 20μM) revealed a potentiating effect on GABA-stimulated binding of [35S]GTPγS to rat cortical membranes, with EC50 values in the low micromolar range. Bioluminescence resonance energy transfer (BRET) experiments in Chinese Hamster Ovary (CHO)-cells expressing GABAB receptors showed that SSD114 potentiates the GABA inhibition of adenylyl-cyclase mediated by GABAB receptors. Our compound is also effective in vivo potentiating baclofen-induced sedation/hypnosis in mice, with no effect when tested alone. These findings indicate that SSD114, a molecule with a different chemical structure compared to known GABAB PAMs, is a novel GABAB PAM with potential usefulness in the GABAB-receptor research field.
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Affiliation(s)
- Alessandra Porcu
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | - Carla Lobina
- Neuroscience Institute, National Research Council of Italy, Section of Cagliari, Cagliari, Italy
| | - Daniela Giunta
- Biomolecular Chemistry Institute, National Research Council of Italy, Section of Sassari, Sassari, Italy
| | - Maurizio Solinas
- Biomolecular Chemistry Institute, National Research Council of Italy, Section of Sassari, Sassari, Italy
| | - Claudia Mugnaini
- Department of Biotechnology Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - M Paola Castelli
- Department of Biomedical Sciences, Division of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy.
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6
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Prekupec S, Makuc D, Plavec J, Kraljević S, Kralj M, Pavelić K, Andrei G, Snoeck R, Balzarini J, De Clercq E, Raić-Malić S, Mintas M. Antiviral and Cytostatic Evaluation of the Novel 6-acyclic Chain Substituted Thymine Derivatives. ACTA ACUST UNITED AC 2016; 16:327-38. [PMID: 16245648 DOI: 10.1177/095632020501600505] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A series of the novel 5-methyl pyrimidine derivatives with an acyclic side chain at the C-6 position were synthesized using lithiation of a 2,4-dimethoxy-5,6-dimethyl pyrimidine and subsequent nucleophilic addition or substitution reactions of the organolithium intermediate thus obtained with acetaldehyde, epichlorhydrine, fluorinated ketones and fluorinated ester. The novel compounds were evaluated for their cytostatic and antiviral activities. Among all the compounds evaluated, two fluorinated acyclic pyrimidine derivatives showed the highest cytostatic activities. The compound containing a 2-hydroxy-3,3,3-trifluoro-1-propenyl side chain exhibited a pronounced effect against breast carcinoma (MCF-7, IC50=8.38 μg/ml), while the compound with a 2-fluoromethyl-2-acetoxypropyl chain exhibited moderate effect against cervical carcinoma (HeLa, IC50=19.73 μg/ml).
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Affiliation(s)
- Svjetlana Prekupec
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Zagreb, Croatia
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7
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Ajeesh Kumar AK, Nair KB, Bodke YD, Sambasivam G, Bhat KG. Design, synthesis, and evaluation of the anticancer properties of a novel series of carboxamides, sulfonamides, ureas, and thioureas derived from 1,2,4-oxadiazol-3-ylmethyl-piperazin-1-yl substituted with pyrazolo[1,5-a]pyrimidine derivatives. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1723-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Facile synthesis of pyrimidines via iminium catalyzed [4+2] reaction of α,β-unsaturated ketones with 1,3,5-triazines. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Yang G, Jia Q, Chen L, Du Z, Wang J. Direct access to pyrimidines through organocatalytic inverse-electron-demand Diels–Alder reaction of ketones with 1,3,5-triazine. RSC Adv 2015. [DOI: 10.1039/c5ra16995j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An organocatalytic inverse-electron-demand Diels–Alder reaction of ketones with 1,3,5-triazine through enamine catalysis has been developed.
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Affiliation(s)
- Gongming Yang
- Allan H. Conney Laboratory for Anticancer Research
- Guangdong University of Technology
- China
| | - Qianfa Jia
- Allan H. Conney Laboratory for Anticancer Research
- Guangdong University of Technology
- China
| | - Lei Chen
- Allan H. Conney Laboratory for Anticancer Research
- Guangdong University of Technology
- China
| | - Zhiyun Du
- Allan H. Conney Laboratory for Anticancer Research
- Guangdong University of Technology
- China
| | - Jian Wang
- Allan H. Conney Laboratory for Anticancer Research
- Guangdong University of Technology
- China
- Department of Chemistry
- National University of Singapore
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10
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Saikia P, Gogoi S, Gogoi S, Boruah RC. An efficient route for annulation of pyrimidines to steroids and non-steroids via a base catalyzed one-pot three component reaction. Steroids 2014; 88:1-6. [PMID: 24973635 DOI: 10.1016/j.steroids.2014.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 06/05/2014] [Accepted: 06/17/2014] [Indexed: 01/08/2023]
Abstract
A facile strategy for the synthesis of steroidal A- and D-ring fused pyrimidines has been accomplished in high yields via a one-pot reaction of steroidal ketones, aromatic aldehydes and amidine derivatives in presence of potassium tert-butoxide in refluxing ethanol. The generality of the reaction was also extended to non-steroidal ketones.
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Affiliation(s)
- Pallabi Saikia
- Medicinal Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
| | - Shyamalee Gogoi
- Medicinal Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
| | - Sanjib Gogoi
- Medicinal Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India.
| | - Romesh C Boruah
- Medicinal Chemistry Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India.
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11
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Synthesis of New Pyrazolo[1,5-a]pyrimidine, Triazolo[4,3-a]pyrimidine Derivatives, and Thieno[2,3-b]pyridine Derivatives from Sodium 3-(5-Methyl-1-phenyl-1H-pyrazol-4-yl)-3-oxoprop-1-en-1-olate. J CHEM-NY 2013. [DOI: 10.1155/2013/327095] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Condensation of sodium 3-oxo-3-(1-phenyl-1H-pyrazol-4-yl)prop-1-en-1-olate (2) with several heterocyclic amines, cyanoacetamide, cyanothioacetamide, and 2-cyanoacetohydrazide gives pyrazolo[1,5-a]pyrimidines (5a–d), pyrido[2′,3′:3,4]pyrazolo[1,5-a]pyrimidine (9), benzo[4,5]imidazo[1,2-a]pyrimidine (10), [1,2,4]triazolo[1,5-a]pyrimidine (11), and pyridine derivatives (12–14). Also, thieno[2,3-b]pyridines (15–18) were synthesized via pyridinethione (13) withα-halo ketones andα-halo ester. Structures of the newly synthesized compounds were elucidated by elemental analysis, spectral data, alternative synthetic routes, and chemical transformation whenever possible.
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12
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P. Mahajan M, Mohan C, Bhargava G. Chemo- and Regioselective Imino Diels-Alder Reactions: Synthesis of Functionalized Novel Quinolin-3-one and Quinoline Derivatives. HETEROCYCLES 2010. [DOI: 10.3987/com-09-s(s)33] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Barthakur MG, Gogoi S, Dutta M, Boruah RC. A facile three-component solid phase synthesis of steroidal A-ring fused pyrimidines under microwave irradiation. Steroids 2009; 74:730-4. [PMID: 19541000 DOI: 10.1016/j.steroids.2009.03.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2008] [Revised: 03/04/2009] [Accepted: 03/17/2009] [Indexed: 10/21/2022]
Abstract
The preparation of ring-A fused pyrimidines at the steroidal 2,3-position is herein described. The novel steroidal pyrimidines were prepared from the solid phase three-component reaction of 2-hydroxymethylene-3-keto steroids, arylaldehydes and ammonium acetate under microwave irradiation.
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Affiliation(s)
- Madan G Barthakur
- Medicinal Chemistry Division, North-East Institute of Science and Technology, Jorhat 785006, India
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14
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P. Mahajan M, Ȧnand A, Bhargava G, Singh P. Regioselective Nitroso Diels-Alder Cycloaddition Reactions of 5-Dienylpyrimidinones and Transformation to Novel 4-Amino-Alcohol Tethered Pyrimidinones. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(f)76] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Radi M, Falciani C, Contemori L, Petricci E, Maga G, Samuele A, Zanoli S, Terrazas M, Castria M, Togninelli A, Esté J, Clotet-Codina I, Armand-Ugón M, Botta M. A Multidisciplinary Approach for the Identification of Novel HIV-1 Non-Nucleoside Reverse Transcriptase Inhibitors: S-DABOCs and DAVPs. ChemMedChem 2008; 3:573-93. [DOI: 10.1002/cmdc.200700198] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Lewis acid promoted imino Diels–Alder reactions of 5-dienyl pyrimidinones with N-aryl/naphthyl imines: synthesis of novel quinoline/benzoquinoline derivatives. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Goudgaon ΝM, Reddy CHU. EFFICIENT SYNTHESIS OF NOVEL 6-PHENYLTHIO-2,4- DISUBSTITUTED PYRIMIDINES. HETEROCYCL COMMUN 2008. [DOI: 10.1515/hc.2008.14.6.443] [Citation(s) in RCA: 1] [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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18
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Moustafa AH, Saad HA, Shehab WS, El-Mobayed MM. Synthesis of Some New Pyrimidine Derivatives of Expected Antimicrobial Activity. PHOSPHORUS SULFUR 2007. [DOI: 10.1080/10426500701557286] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Prekupec S, Makuc D, Plavec J, Suman L, Kralj M, Pavelić K, Balzarini J, Clercq ED, Mintas M, Raić-Malić S. Novel C-6 Fluorinated Acyclic Side Chain Pyrimidine Derivatives: Synthesis, 1H and 13C NMR Conformational Studies, and Antiviral and Cytostatic Evaluations. J Med Chem 2007; 50:3037-45. [PMID: 17539622 DOI: 10.1021/jm0614329] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthetic route for introduction of a fluoroalkyl (7-12, 14), fluoroalkenyl (15 and 16), fluorophenylalkyl (17, 19, 20, and 22), and fluorophenylalkenyl (18, 21) side chain at C-6 of the pyrimidine involved the lithiation of the pyrimidine derivatives 3 and 3a and subsequent nucleophilic addition or substitution reactions of the organolithium intermediate thus obtained with various electrophiles. Conformational properties of the novel fluorinated pyrimidine derivatives were assessed by the use of 1D difference NOE enhancements and C-F coupling constants. Compounds 4-22 were evaluated for their antiviral and cytostatic activities. Of all compounds evaluated, the 5-bromopyrimidine derivatives 5 and 6 showed the highest inhibitory activities. Among the series of fluoroalkylated pyrimidines, which is generally more active than the series of fluorophenylalkylated pyrimidines, compounds 8 and 14 displayed moderate cytostatic activities against the tested tumor cell lines. Moreover, compound 8 containing a 2-fluoromethylpropyl side chain expressed some but not highly specific activity against varicella-zoster virus (VZV). From C-6 fluorophenylalkylated pyrimidine derivatives, 17a and 21 showed a slight activity against cytomegalovirus (CMV), VZV, and Coxsackie B4 virus, respectively. Besides, compounds 17a and 21 showed no cytotoxic effect.
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Affiliation(s)
- Svjetlana Prekupec
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, P.O. Box 177, HR-10000 Zagreb, Croatia
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20
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Patiño-Molina R, Cubero-Lajo I, Pérez de Vega MJ, García-López MT, González-Muñiz R. Chiral 1,3,6-trisubstituted 2,4-dioxohexahydropyrimidines: a convenient stereoselective synthesis from aspartic acid derivatives. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.03.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Bhargava G, Kumar V, Mahajan MP. Lewis acid promoted aza Diels–Alder reactions of acyclic unactivated 5-dienyl pyrimidinones with N-arylimines: synthesis of novel quinoline derivatives. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.01.129] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Mugnaini C, Manetti F, Esté JA, Clotet-Codina I, Maga G, Cancio R, Botta M, Corelli F. Synthesis and biological investigation of S-aryl-S-DABO derivatives as HIV-1 inhibitors. Bioorg Med Chem Lett 2006; 16:3541-4. [PMID: 16621553 DOI: 10.1016/j.bmcl.2006.03.080] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2006] [Revised: 03/22/2006] [Accepted: 03/24/2006] [Indexed: 11/18/2022]
Abstract
S-Aryl-S-DABO derivatives, a novel subclass of S-DABO anti-HIV-1 agents, were synthesized via Ullmann type reaction starting from the corresponding 2-thiouracils by the aid of microwave irradiation. The results of their evaluation as inhibitors of RT are reported together with their antiviral activity in cellular assays.
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Affiliation(s)
- Claudia Mugnaini
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via De Gasperi, 2 I-53100 Siena, Italy
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23
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A convenient two-step synthesis of 6-methylenesubstituted-4-trichloromethyl-2-methylsulfanyl pyrimidines. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.11.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Singh P, Marwaha A, Singh H, Mahajan MP. Comparative reactivity of N′-(5-benzoyl/ethoxycarbonyl)thiazol-2-yl-N,N-dimethylformamidines with ketenes. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Mohan C, Singh P, Mahajan M. Facile synthesis and regioselective thio-Claisen rearrangements of 5-prop-2-ynyl/enyl-sulfanyl pyrimidinones: transformation to thienopyrimidinones. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.08.074] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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26
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Corelli F, Botta M, Lossani A, Pasquini S, Spadari S, Focher F. Microwave-assisted synthesis and biological evaluation of novel uracil derivatives inhibiting human thymidine phosphorylase. ACTA ACUST UNITED AC 2004; 59:987-92. [PMID: 15598434 DOI: 10.1016/j.farmac.2004.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2004] [Accepted: 08/13/2004] [Indexed: 11/18/2022]
Abstract
New 5-chloro-6-substituted-uracil derivatives have been prepared by microwave assisted-synthesis and tested in vitro as thymidine phosphorylase inhibitors. One of these compounds showed potent inhibitory activity, with an IC50 value in the submicromolar range. The biological activity of the new compounds is discussed in terms of structure-activity relationship.
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Affiliation(s)
- Federico Corelli
- Dipartimento Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via Aldo Moro, 53100 Siena, Italy.
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27
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Radi M, Petricci E, Maga G, Corelli F, Botta M. Parallel Solution-Phase Synthesis of 4-Dialkylamino-2-methylsulfonyl-6-vinylpyrimidines. ACTA ACUST UNITED AC 2004; 7:117-22. [PMID: 15638490 DOI: 10.1021/cc049880u] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A simple and straightforward methodology for the parallel, solution-phase synthesis of novel 4-dialkylamino-2-methylsulfonyl-6-vinylpyrimidines 9a-j has been developed. Starting from 2-methylthio-6-[2-(p-toluensulfonyloxy)ethan-1-yl]-4(3H)-pyrimidinone (6), a three-step procedure (namely, tosylate substitution by amines, base-catalyzed rearrangement, and sulfide to sulfone oxidation) using a Buchi Sincore synthesizer gave the final products in high yield after simple ethyl acetate extraction and without further purification. Interestingly, when the final oxidation step was performed on 4-arylpiperazine derivatives 8g-j, the corresponding highly polar piperazine N-oxides 9g-j were obtained, which conversely needed chromatographic purification in order to give the pure products.
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Affiliation(s)
- Marco Radi
- Dipartimento di Farmaco Chimico Tecnologico, Università degli Studi di Siena, Via A. Moro, 53100-Siena, Italy
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28
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A facile synthesis and thio-Claisen rearrangement of 3-aryl-2-phenyl-5-prop-2-ynylsulfanyl-3H-pyrimidin-4-ones: regioselective transformation to thieno[3,2-d]pyrimidin-4-ones. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.05.121] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nieto RM, Coelho A, Martínez A, Stefanachi A, Sotelo E, Raviña E. Synthesis of 1-substituted-6-methyluracils. Chem Pharm Bull (Tokyo) 2003; 51:1025-8. [PMID: 12951442 DOI: 10.1248/cpb.51.1025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of 6-methyl-1H-pyrimidin-2,4-diones bearing different substituents in the 1-position of the uracil ring were prepared starting from substituted ureas and diketene.
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Affiliation(s)
- Rosa Maria Nieto
- Laboratorio de Química Farmacéutica, Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Spain
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Saladino R, Ciambecchini U, Maga G, Mastromarino P, Conti C, Botta M. A new and efficient synthesis of substituted 6-[(2'-dialkylamino)ethyl] pyrimidine and 4-N,N-dialkyl-6-vinyl-cytosine derivatives and evaluation of their anti-rubella activity. Bioorg Med Chem 2002; 10:2143-53. [PMID: 11983510 DOI: 10.1016/s0968-0896(02)00077-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New 6-[(2'-dialkylamino)ethyl]-4(3H)-pyrimidinones were prepared by a multistep procedure starting from acetone dicarboxylic acid diethyl ester and urea derivatives. These compounds were used as starting materials to obtain 4-N,N-dialkyl-6-vinyl-pyrimidine derivatives by an unprecedented tandem C-6 side chain Hofmann-like elimination/C-4 pyrimidinone substitution. Among the new derivatives obtained, various compounds show anti-Rubella activity. The inhibition of HIV-1 Reverse Transcriptases (RT), from both wild type and modified viruses, is also reported.
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Affiliation(s)
- Raffaele Saladino
- Unità INFM, Dipartimento Agrochimico Agrobiologico, Università della Tuscia, via San Camillo de Lellis, 01100 Viterbo, Italy.
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Botta M, Corelli F, Maga G, Manetti F, Renzulli M, Spadari S. Research on anti-HIV-1 agents. Part 2: Solid-phase synthesis, biological evaluation and molecular modeling studies of 2,5,6-trisubstituted-4(3H)-pyrimidinones targeting HIV-1 reverse transcriptase. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00815-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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