Relevant bibliographies by topics / 5-a]pyrimidine derivatives

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Academic literature on the topic '5-a]pyrimidine derivatives'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "5-a]pyrimidine derivatives"

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Dabaeva, V. V., M. R. Baghdasaryan, I. M. Barkhudaryants, E. G. Paronikyan, and Sh Sh Dashyan. "Synthesis of new fused 3(4)-substituted 11-furylthieno[3,2-<i>d</i>]pyrimidine derivatives." Журнал общей химии 93, no. 9 (2023): 1351–57. http://dx.doi.org/10.31857/s0044460x23090056.

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A method was developed for the synthesis of new fused 3-alkyl-substituted derivatives of thieno[3,2- d ]pyrimidin-4(3 H )-ones based on 11-(2-furyl)-8,8-dimethyl-7,10-dihydro-8 H -pyrano[3′′,4′′:5′,6′]pyrido[3′,2′:4,5]-thieno[3,2- d ]pyrimidin-4(3 H )-one via nucleophilic substitution in the pyrimidine ring. A series of fused 4-amino-substituted 11-furylthieno[3,2- d ]pyrimidine derivatives was also synthesized from the corresponding 4-chloro derivative.
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2

Harnden, MR, and DT Hurst. "The Chemistry of Pyrimidinethiols. III. The Synthesis of Some Substituted Pyrimidinthiols and Some Thiazolo[5,4-D]pyrimidines." Australian Journal of Chemistry 43, no. 1 (1990): 55. http://dx.doi.org/10.1071/ch9900055.

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The preparation of a number of pyrimidinethiols and (substituted) thiopyrimidines has been carried out. The reaction of 5-acetylamino-2-aminopyrimidine-4,6-diol with phosphorus penta -sulfide in pyridine gave 5-amino-2-methylthiazolo[5,4-d]pyrimidine-7-thiol which was used to prepare several additional novel pyrimidine derivatives. Hydrolysis of the 4-carboxymethylthio derivative by using 5M hydrochloric acid gave 2,5-diamino-6-mercaptopyrimidin-4-ol hy -drochloride whilst hydrolysis of 2-methyl-7-methylthiothiazolo[5,4-d]pyrimidin-5-amine gave the corresponding 4-hydroxy derivative. Several 4
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Huppatz, JL. "Systemic Fungicides. The Synthesis of Pyrazolo[1,5-a]pyrimidine Analogues of Carboxin." Australian Journal of Chemistry 38, no. 1 (1985): 221. http://dx.doi.org/10.1071/ch9850221.

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The synthesis of a series of pyrazolo [1,5-a] pyrimidine derivatives, structural analogues of the systemic fungicide carboxin, is described. A common intermediate incorporating structural features desirable for fungicidal activity, N-phenyl-3(5)-amino-5(3)-methylpyrazole-4- carboxamide (6), was used to prepare pyrazolo [1,5-a] pyrimidines variously substituted in positions 5 and 7 of the ring system. Bromination of N-phenyl-2-methylpyrazolo[1,5-a]pyrimidine-3-carboxamide (8) occurred preferentially in the phenyl ring and the 6-bromo derivative was prepared by bromination of the corresponding 3
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Agarkov, Artem S., Dilyara O. Mingazhetdinova, Anna A. Nefedova, et al. "Synthesis and Structure of 6-Acetyl-2-Arylhydrazone Derivatives of Thiazolo[3,2-a]Pyrimidine." Organics 4, no. 3 (2023): 438–46. http://dx.doi.org/10.3390/org4030031.

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Triazolo[4,3-a]pyrimidine is one of the promising structural fragments for the development of drugs, including anticancer drugs. This work is devoted to the synthesis of a number of new 2-arylhydrazone derivatives of thiazolo[3,2-a]pyrimidine, which are synthetic precursors for triazolo[4,3-a]pyrimidines. The crystal structure of 6-acetyl-7-methyl-5-phenyl-2-(2-phenylhydrazineylidene)-5H-thiazolo[3,2-a]pyrimidin-3(2H)-one was established by SCXRD. In the reduction reaction of the compound, the following system was used: vanadium(V) oxide, and sodium borohydride in ethanol at room temperature,
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Abdelhamid, Abdou O., Zeineb H. Ismail, and Anhar Abdel-Aziem. "Reactions with Hydrazonoyl Halides 601: Synthesis of Thieno[2′,3′:4,5] Pyrimidino[1,2-b][1,2,4,5]tetrazines, [1]benzothieno[2′,3′:4,5]pyrimidino [1,2-b][1,2,4,5]tetrazines, Pyrazolo[3′,4′:4,5]pyrimidino[1,2-b] [1,2,4,5]tetrazines and Pyrazolo[3,4-d]pyridazines." Journal of Chemical Research 2007, no. 10 (2007): 609–16. http://dx.doi.org/10.3184/030823407x256118.

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Thieno[2′,3′:4,5]pyrimidino[1,2- b][1,2,4,5]tetrazine, [1]benzothieno-[2′,3′:4,5]pyrimidino[1,2- b][1,2,4,5]tetrazine, pyrazolo [3′,4′:4,5]pyrimidino[1,2- b][1,2,4,5]tetrazine, triazolo[4,3- a]pyrimidin-5(1 H)-one, 1-{[2-(1-benzofuran-2-yl)-5-phenyl-4,5-dihydro-1 H-pyrazol-1-yl]-4-substituted-1,3-thiazol-5-yl}-2-phenyldiazene, 3-acyl-4-(1-benzofuran-2-ylcarbonyl) pyrazole and pyrazolo[3,4- d]pyridazine derivatives could be obtained via reactions of hydrazonoyl halides with the appropriate pyrimidine-2-thione, 3-amino-5,6-dimethyl-2-sulfanylthieno[2,3- d]pyrimidin-4(3 H)-one, 5-amino-6-mercapto
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6

Ho, Yuh-Wen, and Maw Cherng Suen. "Thioxopyrimidine in Heterocyclic Synthesis I: Synthesis of Some Novel 6-(Heteroatom-substituted)-(thio)pyrimidine Derivatives." Journal of Chemistry 2013 (2013): 1–15. http://dx.doi.org/10.1155/2013/765243.

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A series of novel N-cycloalkanes, morpholine, piperazines, pyrazole, pyrimidine, benzimidazolo[1,2-a]pyrimidine, 1,2,3,4-tetrazolo[1,5-a]pyrimidine, azopyrazolo[1,5- a]pyrimidine, pyrimido[4', 5':3,4]pyrazolo[1,5-a]pyrimidines and pyridine derivatives incorporating a 5-cyano-4-methyl-2-phenyl-(thio)pyrimidine moiety were obtained by the intramolecular cyclization of 6-methylthio-pyrimidine, 6-(benzoylmethyl)thio- pyrimidine and 2-[(5-cyano-4-methyl-2-phenylpyrimidin-6-yl)thio]-3-dimethyl- amino-1-phenyl-prop-2-en-1-one with appropriate amines and enaminone compounds, respectively. The structur
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Hussein, Khlood Abdulla Ahmed, and Yacoob Abdulla Kassium. "Synthesis and characterization of some New 2- and 6- substituted of 5- Acetyl - 4- (P- phenyl) Pyrimidine and substituted thieno [2, 3- d] Pyrimidine." University of Aden Journal of Natural and Applied Sciences 25, no. 2 (2021): 273–82. http://dx.doi.org/10.47372/uajnas.2021.n2.a05.

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The series of new pyrimidines derivatives 2- and 6- Substituted of 5 - Acetyl - 4 - (P- phenyl) Pyrimidine and Substituted thieno [2, 3- d] Pyrimidine are synthesis by the reaction between some substituted of benzaldehydes with ethyl aceto acetate in the present of ethanol as a solvent to give the products(3e-h), when react alkyl halide with (3e-h) in ethanol obtain new Pyrimidine derivatives(4e-h) heating them with phosphorous oxy chloride in dioxane to form (5e-h) which reacts with thiourea in ethanol to produce (6e-h) these compounds reacting with chloro acetic acid to form new Substituted
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Hussein, Khlood Abdulla Ahmed, and Yacoob Abdulla Kassium. "Synthesis and characterization of some New 2- and 6- substituted of 5- Acetyl - 4- (P- phenyl) Pyrimidine and substituted thieno [2, 3- d] Pyrimidine." University of Aden Journal of Natural and Applied Sciences 25, no. 2 (2021): 273–82. http://dx.doi.org/10.47372/uajnas.2021.n2.a05.

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The series of new pyrimidines derivatives 2- and 6- Substituted of 5 - Acetyl - 4 - (P- phenyl) Pyrimidine and Substituted thieno [2, 3- d] Pyrimidine are synthesis by the reaction between some substituted of benzaldehydes with ethyl aceto acetate in the present of ethanol as a solvent to give the products(3e-h), when react alkyl halide with (3e-h) in ethanol obtain new Pyrimidine derivatives(4e-h) heating them with phosphorous oxy chloride in dioxane to form (5e-h) which reacts with thiourea in ethanol to produce (6e-h) these compounds reacting with chloro acetic acid to form new Substituted
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9

Solomyannyi, Roman, Sergii Slivchuk, Donald Smee, et al. "In vitro Activity of the Novel Pyrimidines and Their Condensed Derivatives Against Poliovirus." Current Bioactive Compounds 15, no. 5 (2019): 582–91. http://dx.doi.org/10.2174/1573407214666180720120509.

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Background: Substituted pyrimidine derivatives (non-nucleoside) are found to be associated with various biological activities. The various substituted pyrimidines are also having significant in vitro activity against different DNA and RNA viruses. The present study focuses on the anti-PV activity of new pyrimidines and their condensed derivatives. Methods: A series of novel pyrimidines and their condensed derivatives were synthesized and their structures were confirmed by spectral data. Their antiviral activities against poliovirus type 3 (PV-3) were evaluated in vitro. In cell culture, morpho
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A-Ani, Zaid S. M., Sana A. Abdulmawjood, Adel O. A. Al-Hussain, and Shihab A. Al-Bajari. "Synthesis and Biological Activity of few Pyrimidines Derivatives against Hepatic Injury Stimulated by Carbon Tetrachloride in Male Rats." INTERNATIONAL JOURNAL OF DRUG DELIVERY TECHNOLOGY 12, no. 04 (2022): 1496–501. http://dx.doi.org/10.25258/ijddt.12.4.02.

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In the presence of sodium hydroxide, substituted chalcones are reacted with cyanoguandine in ethanol, and some chalcone compounds are used as a nucleus in the preparation of some five-, hexa-, and hepta-, heterocyclic compounds pyrimidine (pyrimidines derivatives), pyrimidine derivatives (A1, A2, and A3). Contains therapeutic properties and bioactivity, and has been used to treat various ailments. This study aimed to learn more about how pyrimidine derivatives could help mitigate the undesirable implications of carbon tetrachloride. a group of 50 male rats were separated into 5 groups: healthy
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Book chapters on the topic "5-a]pyrimidine derivatives"

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Singh, Sundaram, and Savita Kumari. "Use of Barbituric Acid as a Precursor for the Synthesis of Bioactive Compound." In Advances in Organic Synthesis. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815040791123180005.

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Barbituric acid is an organic compound containing a pyrimidine heterocyclic skeleton. It is a water-soluble and odorless compound. Barbituric acid served as a starting material for many barbiturate drugs. The variable properties of the products achieved from barbituric acid motivate organic chemists to investigate its chemistry and current developments have suggested it by multicomponent reactions (MCR). Barbituric acid and its derivatives, commonly known as barbiturates, are important in pharmaceutical chemistry because they are fascinating building blocks for synthesizing biologically active
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HASSANIEN, ABU ZEID ABD EL-BASET. "2,6-Bis[3-N,N-dimethylamino-l-oxopropen-l-yl)pyridine as Building Blocks in Heterocyclic Synthesis: New routes to 2,2′:6′2″ terpyridines and 2,6-Bis-[pyrazolyl, isoxazolyl, pyrimidinyl, diazipenyl, pyrazolo[5,l-a]pyrimidinyl and pyrazolo[4,3-d] pyridazinyl] pyridine derivatives." In 19th International Congress on Heterocyclic Chemistry. Elsevier, 2003. http://dx.doi.org/10.1016/b978-0-08-044304-1.50373-7.

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Conference papers on the topic "5-a]pyrimidine derivatives"

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Avdović, Edina, Dušica Simijonović, Žiko Milanović, Sandra Jovičić Milić, Sunčica Roca, and Dražen Vikić-Topić. "Chromeno-pyrimidine-type compounds (part II): in vitro evaluation of antioxidant potential." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.690a.

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The chromeno and pyrimidine classes compounds include a variety of hybrid molecules displaying diverse biological actions. Although they have been examined for many years, these compounds are still of interest due to their facile chemical transformations. The presence of chromeno and pyrimidine structural motifs in many drugs, prompted us to investigate the antioxidant features of compounds 5-(7-bromo-2,4-dioxo-1,3,4,5-tetrahydro-2H-chromeno[2,3-d]pyrimidin-5-yl) pyrimidine-2,4,6(1H,3H,5H)-tri-one (CP-1) and 8,9- ihydroxy-2H-chromeno[2,3-d]pyrimidine-2,4(3H)-dione (CP-2). In this paper, we inv
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2

Engasheva, E. S., and D. D. Novikov. "THE EFFICACY OF THE COMBINATION DRUG AGAINST APHANIPTEROSIS IN CATS." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2025. https://doi.org/10.31016/978-5-6053355-1-1.2025.26.100-104.

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The insecticidal efficacy and safety of a new combination drug in tablet formulation based on derivatives of spinosyns, pyrimidines and pyrazinoisoquinoline against aphanipterosis in cats was studied. The study was carried out on 16 animals with spontaneous infestation with fleas Ctenocephalides spp. which were divided into two groups: experimental and control groups of 8 animals each. The animals of the experimental group were given the drug individually, once, orally, on the root of the tongue immediately after feeding in the minimum dose per 1 kg of animal weight (by active ingredients): 50
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Nikalje, Anna Pratima, Julio Seijas Vázquez, Shailee Tiwari, and Zahid Zaheer. "Ultrasound-promoted One-Pot, Three Component Synthesis Of Novel 5-Amino-2-(4-Chlorophenyl)-7- Substituted Phenyl-8,8a-Dihydro-7H-[1,3,4]Thiadiazolo[3,2-A]Pyrimidine-6-Carbonitrile Derivatives." In The 19th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2015. http://dx.doi.org/10.3390/ecsoc-19-a048.

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