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Abdel Reheim MAM, Abdel Hafiz IS, Abdel Rady HSE. Microwave assisted the short time clean synthesis of 1,3-diketones as building blocks in heterocyclic synthesis: a facile synthesis and antimicrobial evaluation of new dihydropyridine, 4H-pyrane, dihydropyridazine, pyrimidine and pyrazole derivatives. Mol Divers 2021; 26:741-755. [PMID: 33398634 PMCID: PMC9064864 DOI: 10.1007/s11030-020-10152-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 10/23/2020] [Indexed: 12/05/2022]
Abstract
Abstract The compounds bearing naphthalene moiety can be used as medical preparations because of their wide spectrum of biological activity and low toxicity. In this study, a new series of azoles or azines were synthesized from the reaction of the key intermediate 1-(1-hydroxynaphthalen-2-yl)-3-phenylpropane-1,3-dione 3 with a variety of electrophilic and nucleophilic reagents under a variety of mild conditions. The chemical structures of these compounds were confirmed by various spectroscopic methods such as (IR, 1H-NMR, 13C-NMR, mass spectra and elemental analyses). The prepared compounds were screened in vitro for their anti-microbial activity against some species of Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis) and Gram-negative bacteria (Escherichia coli and Pseudomonas aeuroginosa). Anti-fungal activities of the compounds were tested against yeast and mycelial fungi,Candida albicans and Aspergillus flavus. The antimicrobial activity of this series was showed either weak or moderate activities. Graphic abstract ![]()
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Nejrotti S, Mannu A, Blangetti M, Baldino S, Fin A, Prandi C. Optimization of Nazarov Cyclization of 2,4-Dimethyl-1,5-diphenylpenta-1,4-dien-3-one in Deep Eutectic Solvents by a Design of Experiments Approach. Molecules 2020; 25:E5726. [PMID: 33291596 PMCID: PMC7730498 DOI: 10.3390/molecules25235726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 12/19/2022] Open
Abstract
The unprecedented Nazarov cyclization of a model divinyl ketone using phosphonium-based Deep Eutectic Solvents as sustainable non-innocent reaction media is described. A two-level full factorial Design of Experiments was conducted for elucidating the effect of the components of the eutectic mixture and optimizing the reaction conditions in terms of temperature, time, and substrate concentration. In the presence of the Deep Eutectic Solvent (DES) triphenylmethylphosphonium bromide/ethylene glycol, it was possible to convert more than 80% of the 2,4-dimethyl-1,5-diphenylpenta-1,4-dien-3-one, with a specific conversion, into the cyclopentenone Nazarov derivative of 62% (16 h, 60 °C). For the reactions conducted in the DES triphenylmethylphosphonium bromide/acetic acid, quantitative conversions were obtained with percentages of the Nazarov product above 95% even at 25 °C. Surface Responding Analysis of the optimized data furnished a useful tool to determine the best operating conditions leading to quantitative conversion of the starting material, with complete suppression of undesired side-reactions, high yields and selectivity. After optimization, it was possible to convert more than 90% of the model substrate into the desired cyclopentenone with cis percentages up to 77%. Experimental validation of the implemented model confirmed the robustness and the suitability of the procedure, leading to possible further extension to this specific combination of experimental designs to other substrates or even to other synthetic processes of industrial interest.
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Affiliation(s)
- Stefano Nejrotti
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
| | - Alberto Mannu
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
| | - Marco Blangetti
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
| | - Salvatore Baldino
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
| | - Andrea Fin
- Department of Drug Science and Technology, University of Turin, Via Pietro Giuria, 9-I-10125 Torino, Italy;
| | - Cristina Prandi
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
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Aouad MR, Rezki N, Messali M, El Ashry ESH. Synthesis of bis-acyclonucleoside analogues bearing benzothienyl-1,2,4-Triazol-3-Yl-disulfide under conventional and microwave methods. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2013; 32:28-41. [PMID: 23360293 DOI: 10.1080/15257770.2012.751491] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The oxidation of 5-(3-chlorobenzo[b]thien-2-yl)-4H-1,2,4-triazole-3-thiol (1) with a solution of iodine and potassium iodide at room temperature afforded [5-(3-chlorobenzo[b]thien-2-yl)-4H-1,2,4-triazole-3-yl]disulfide (2). In contrast, when the reaction mixture was heated or irradiated by MW, an unexpected additional product was obtained and identified as 3-(3-chlorobenzo[b]thien-2-yl)-4H-1,2,4-triazole (3); the ratio of products was 3:1. The preferred conformer of 2 was deduced from the theoretical calculation. The alkylation of compounds 2 and 3 with epichlorohydrin and hydroxyalkylating agents gave the corresponding N,N-bis- and N-acyclonucleosides analogues 8-15.
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Affiliation(s)
- Mohamed R Aouad
- Department of Chemistry, Taibah University, Madinah, Saudi Arabia.
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El-Sayed HA, Moustafa AH, Haikal AEFZ, Abu-El-Halawa R, El Ashry ESH. Synthesis, antitumor and antimicrobial activities of 4-(4-chlorophenyl)-3-cyano-2-(β-O-glycosyloxy)-6-(thien-2-yl)-nicotinonitrile. Eur J Med Chem 2011; 46:2948-54. [DOI: 10.1016/j.ejmech.2011.04.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 04/05/2011] [Accepted: 04/05/2011] [Indexed: 11/29/2022]
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5
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Belen’kii L, Gramenitskaya V, Evdokimenkova Y. The Literature of Heterocyclic Chemistry, Part X, 2005–2007. ADVANCES IN HETEROCYCLIC CHEMISTRY 2011. [DOI: 10.1016/b978-0-12-385464-3.00001-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Beldi R, Atta KF, Aboul-Ela S, El Ashry ESH. Efficient diverse approach for quinoxaline-derived glycosylated and morphinylated analogs. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.496] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Moustafa AH, Morsy HA, Assy MG, Haikal AZ. Synthesis and antimicrobial activity of some S-beta-D-glucosides of 4-mercaptopyrimidine. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2010; 28:835-45. [PMID: 20183622 DOI: 10.1080/15257770903172639] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
5-Acetyl-2-aryl-6-methyl-4-(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosylmercapto)pyramidines 3a-c were obtained by the reaction of 5-acetyl-2-aryl-6-methyl-pyrimidine thiol 1a-c with 2,3,4,6-tetra-O-acetyl-alpha-D-glucopyranosyl bromide (2) in aq. KOH/acetone. The reaction of 1a-c with peracetylated galactose 5 and peracetylated ribose 8 under MW irradiation gave 5-acetyl-2-aryl-6-methyl-4-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosylmercapto)pyrimidine 6a-c and 5-acetyl-2-aryl-6-methyl-4-(2,3,5-tri-O-acetyl-beta-D-ribofuranosylmercapto)pyrimidines 9a-c. The deprotection of 3a-c, 6a-c, and 9a-c in the presence of methanol and TEA/H(2)O yielded the deprotected products 4a-c, 7a-c, and 10a-c. The structures of the compounds were confirmed by using IR, (1)H, (13)C spectra and microanalysis. Selected members of these compounds were screened for antimicrobial activity.
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Affiliation(s)
- A H Moustafa
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, Egypt. ah hu
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8
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El-Sayed HA, Moustafa AH, Haikal AZ, El-Ashry ESH. Synthesis and antibacterial activity of some glucosyl- and ribosyl-pyridazin-3-ones. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2009; 28:184-92. [PMID: 19333857 DOI: 10.1080/15257770902831011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Reaction of 5,6-diphenylpyridazin-3(2H)-one 1a,b with 2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl bromide 2 in K(2)CO(3)/acetone gave 5,6-diphenyl-N(2)-(2',3',4',6'-tetra-O-acetyl-beta-D-glucopyranosyl)pyridazin-3-one 5a,b. The same nucleosides 5a,b were obtained by reaction of 1a,b with peracetylated glucose 3 under MW irradiation. Mercuration of 1a,b followed by reaction with glucosyl bromide 2 gave the same nucleosides 5a,b. The riboside 4-cyano-5,6-diphenyl-N(2)-(2',3',5'-tri-O-acetyl-beta-D-ribofuranosyl)-pyridazin-3-one 8 was obtained by reaction of 4-cyanopyridazinone 1b with peracetylated ribose 7 under MW irradiation. The deprotected nucleosides 6a,b and 9 were obtained by stirring of 5a,b and 8 in methanol and TEA/H(2)O. The structure was confirmed using (1)H and (13)C-NMR spectra. Selected members of these compounds were screened for antibacterial activity.
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Affiliation(s)
- H A El-Sayed
- Department of Chemistry, Faculty of Science, Zagazig University, Zagazig, Egypt
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Dolzhenko AV, Pastorin G, Dolzhenko AV, Chui WK. An aqueous medium synthesis and tautomerism study of 3(5)-amino-1,2,4-triazoles. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.02.172] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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10
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Regioselectivity in the glycosylation of 5-(3-chlorobenzo[b]thien-2-yl)-4H-1,2,4-triazole-3-thiol. Carbohydr Res 2009; 344:725-33. [DOI: 10.1016/j.carres.2009.01.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2008] [Revised: 01/22/2009] [Accepted: 01/29/2009] [Indexed: 11/21/2022]
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Salerno A, Perillo I, Verónica Corona M, Cristina Caterina M. An Efficient Synthesis of 1-Acyl-3-arylimidazolidines Catalyzed by Montmorillonite K-10 Clay under Microwave Irradiation. HETEROCYCLES 2009. [DOI: 10.3987/com-08-11565] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Aouad MR, Rezki NT, El Ahsry ESH. Regioselectivity of the reactions of 4,5-diphenylimidazole-2-thione with 1-chloro-2,3-epoxy-propane and 1-bromo-propene, efficient precursors for imidazo[2,1-b]thiazine and thiazole. Effect of microwave and solid support. J Heterocycl Chem 2008. [DOI: 10.1002/jhet.5570450511] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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El‐Ashry ESH, Rashed N, Awad LF, Ramadan ES, Abdel‐Maggeed SM, Rezki N. Synthesis of 5‐Aryl‐3‐Glycosylthio‐4‐Phenyl‐4H‐1,2,4‐Triazoles and Their Acyclic Analogs Under Conventional and Microwave Conditions. J Carbohydr Chem 2008. [DOI: 10.1080/07328300802030795] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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El-Gendy AA, Said MM, Ghareb N, Mostafa YM, El-Ashry ESH. Synthesis and Biological Activity of Functionalized Indole-2-carboxylates, Triazino- and Pyridazino-indoles. Arch Pharm (Weinheim) 2008; 341:294-300. [DOI: 10.1002/ardp.200700161] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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El Ashry ESH, Atta KF, Aboul‐Ela S, Beldi R. MAOS of Sugar Phenylosazones and their Derived Pyrazoles and Triazoles. J Carbohydr Chem 2007. [DOI: 10.1080/07328300701787164] [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]
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16
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Ashry ESHE, Kassem AA, Abdel-Hamid H, Louis FF, Khattab SAN, Aouad MR. Novel regioselective formation of S- and N-hydroxyl-alkyls of 5-(3-chlorobenzo[b]thien-2-yl)-3-mercapto-4H-1,2,4-triazole and a facile synthesis of triazolo-thiazoles and thiazolo-triazoles. Role of catalyst and microwave. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2007; 26:437-51. [PMID: 17578742 DOI: 10.1080/15257770701426187] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Regioselective alkylation of 5-(3-chlorobenzo[b]thien-2-yl)-4H-1,2,4-triazole (1) with hydroxy alkylating agents 2, 3, 13, and the 2,3-O-isopropylidene-1-O-(p-tolylsulfonyl)-glycerol (10) afforded the corresponding S-alkylated derivatives 6, 7, 11, and 14 under both conventional and microwave irradiation conditions; bentonite as a solid support gave better results, with no change in regioselectivity. A facile intramolecular dehydrative ring closure of 6, 7, 11, and 14 using K(2)CO(3) in DMF afforded the corresponding fused triazolo-thiazines and thiazolo-triazole 17-19. The isopropylidenes and acetyl derivatives of the products were prepared.
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Affiliation(s)
- E S H El Ashry
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
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17
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Ashry ESHE, Rashed N, Awad LF, Ramadan E, Abdel-Maggeed SM, Rezki N. Novel regioselective hydroxyl-alkylation of 4,5-diphenylimidazole-2-thione and a competitive intramolecular ring closure of the S-hydroxyalkyl-imidazoles to imidazo[2,1-b]thiazines and thiazoles. Role of catalyst, microwave irradiation, and solid support. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2007; 26:423-35. [PMID: 17578741 DOI: 10.1080/15257770701426179] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Under both conventional method (CM) and microwave (MW) irradiation (MWI) conditions, alkylation of 4,5-diphenylimidazole-2-thione (1) with halogeno-alkanols 2 or 5, chloroglycerol 11 and 2,3-O-isopropylidene-1-O-(p-tolylsulfonyl)-glycerol (8) in presence of sodium ethoxide or sodium acetate in alcohol afforded regioselectively the corresponding S-alkylated analogues 3, 6, 9, and 12; they also were obtained using MW in absence and presence of bentonite as solid support with no change in regioselectivity. In the presence of potassium carbonate in DMF, the bisalkylated analogues 4, 7, 10, and 13 were obtained except in case of compound 13 where it was accompanied with the imidazothiazine 14. A convenient approach for imidazo-[2,1-b]thiazines and thiazoles 14-16 could be achieved by intramolecular dehydrative ring closure of the S-hydroxyalkylated imidazoles 3, 6, and 12 using potassium carbonate in DMF under both conventional and microwave methods. Isopropylidenation of 12 and 13 and deprotection of 9 and 10 also were investigated.
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Affiliation(s)
- E S H El Ashry
- Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
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19
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Memarian H, Saffar-Teluri A. Microwave-assisted and light-induced catalytic ring opening of α-epoxyketones using DDQ. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2007.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Ashry ESHE, Awad LF, Abdel Hamid H, Atta AI. MAOS ofD‐Gluconic Acid,D‐Glucono‐1,4‐ and 1,5‐Lactones, Esters, Hydrazides, and Benzimidazoles Thereof. J Carbohydr Chem 2007. [DOI: 10.1080/07328300701540258] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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El Ashry ESH, Atta KF, Aboul‐Ela S, Beldi R. MAOS of Quinoxalines, Conjugated Pyrazolylquinoxalines and Fused Pyrazoloquinoxalines from l‐Ascorbic and d‐Isoascorbic Acid. J Carbohydr Chem 2007. [DOI: 10.1080/07328300701252359] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- El Sayed H. El Ashry
- a Chemistry Department, Faculty of Science , Alexandria University , Alexandria, Egypt
| | - Kamal F. Atta
- a Chemistry Department, Faculty of Science , Alexandria University , Alexandria, Egypt
| | - Salah Aboul‐Ela
- a Chemistry Department, Faculty of Science , Alexandria University , Alexandria, Egypt
| | - Razika Beldi
- a Chemistry Department, Faculty of Science , Alexandria University , Alexandria, Egypt
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Ashry ESHE, Rashed N, Abdel-Rahman A, Awad LF, Rasheed HA. Synthesis of 2-bromomethyl-3-hydroxy-2-hydroxymethyl-propyl pyrimidine and theophylline nucleosides under microwave irradiation. Evaluation of their activity against hepatitis B virus. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2006; 25:925-39. [PMID: 16901823 DOI: 10.1080/15257770600793919] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Alkylation of 2-methylthiopyrimidin-4(1H)-one (1a) and its 5(6)-alkyl derivatives 1b-d as well as theophylline (7) with 2,2-bis(bromomethyl)-1,3-diacetoxypropane (2) under microwave irradiation gave the corresponding acyclonucleosides 1-[(3-acetoxy-2-acetoxymethyl-2-bromomethyl)prop-1-yl]-2-methyl-thio pyrmidin-4(1H)-ones 3a-d and 7-[(3-acetoxy-2-acetoxymethyl-2-bromomethyl)prop-1-yl]theophylline (8), which upon further irradiation gave the double-headed acyclonucleosides 1,1 '-[(2,2-diacetoxymethyl)-1,3-propylidene]-bis[(2-(methylthio)-pyrimidin-4(1H)-ones] 4a-c, and 7,7 '-[(2,2-diacetoxymethyl)-1,3-propylidene]-bis(theophylline) (9). The deacetylated derivatives were obtained by the action of sodium methoxide. The activity of deacetylated nucleosides against Hepatitis B virus was evaluated. Compound 5b showed moderate inhibition activity against HBV with mild cytotoxicity.
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Affiliation(s)
- E S H El Ashry
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt.
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