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Relevant bibliographies by topics / 3-d]pyrimidin-7-one

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Academic literature on the topic '3-d]pyrimidin-7-one'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "3-d]pyrimidin-7-one"

1

Janeba, Zlatko, Noha Maklad, and Morris J. Robins. "Synthesis of 6-(alkoxymethyl)- and 6-(alkylsulfanylmethyl)furo[2,3-d]pyrimidin-2(3H)-one analogues." Canadian Journal of Chemistry 84, no. 4 (2006): 561–68. http://dx.doi.org/10.1139/v06-042.

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Treatment of 6-(hydroxymethyl)furo[2,3-d]pyrimidin-2(3H)-one (2) with 1-iodoalkanes and potassium carbonate resulted in predominant formation of N3 (and minor amounts of O2) alkylated regioisomers. Treatment of the 3-alkyl products (3) with thionyl chloride gave highly reactive 6-chloromethyl intermediates (5). Direct solvolysis of 5 in alcohol solutions (~50 °C) produced 3-alkyl-6-(alkoxymethyl)furopyrimidin-2(3H)-ones (6), whereas extensive decomposition of 5 occurred with added base promoters. Sonication of 5 with sodium thioacetate in acetonitrile gave the air-stable 6-(alkylsulfanylmethyl

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2

Hafez, Hend N., and Abdel-Rhman B. A. El-Gazzar. "Synthesis and evaluation of antitumor activity of new 4-substituted thieno[3,2-d]pyrimidine and thienotriazolopyrimidine derivatives." Acta Pharmaceutica 67, no. 4 (2017): 527–42. http://dx.doi.org/10.1515/acph-2017-0039.

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Abstract 3-Methyl-6-phenyl-2-thioxo-2,3-dihydrothieno[3,2-d]pyrimidin- 4(1H)-one (2), on treatment with phosphorous oxychoride, affored 4-chloro-3-methyl-6-phenyl -thieno[3,2-d]pyrimidine- 2(3H)-thione (3). A series of novel 6-phenyl-thieno[3,2-d]pyrimidine derivatives 4-9 bearing different functional groups were synthesized via treatment of compound 3 with different reagents. On the other hand, compound 2 was used to synthesize ethyl-[(3-methyl-6-phenyl-2-thioxo-2,3-dihydrothieno[ 3,2-d]pyrimidin-4-yl)-oxy]acetate (10), 2-hydrazinyl- -3-methyl-6-phenyl-thieno[3,2-d]pyrimidin-4(3H)-one (11), 3

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3

Friary, Richard, Andrew T. McPhail, and Vera Seidl. "Novel Syntheses of Tricyclic, N-Aryl, Pyridine- and Pyrazine-Fused Pyrimidones." Collection of Czechoslovak Chemical Communications 58, no. 5 (1993): 1133–50. http://dx.doi.org/10.1135/cccc19931133.

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2-methylthio-2-imidazoline and 2-methylthio-1,4,5,6-tetrahydro-2-pyrimidine amidated 2-chloro-3-pyridine- and 2-chloro-3-pyrazinecarbonyl chlorides. The products reacted with aromatic amines forming a series of tricyclic, linearly fused N-aryl pyrimidones. Included among these pyrimidones were 10-aryl-2,3-dihydroimidazo[1,2-a]pyrido[2,3-d]pyrimidin-5(10H)-ones, 11-aryl-2,3,4,11-tetrahydropyrido-[2,3-d]pyrimido[1,2-a]pyrimidin-6(6H)-ones, 10-aryl-2,3-dihydroimidazo[1,2-a]pyrazino[2,3-d]pyrimidin-5(10H)-ones and 11-aryl-2,3,4,11-tetrahydropyrimido-[1,2-a]pyrazino[2,3-d]pyrimidin-6(6H)-ones. 4,5,

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4

Rajesh, Kumar, and C. Joshi Y. "A highly efficient synthesis of 3H-1,5-benzodiazepine derivatives using lanthanum(III) nitrate hexahydrate as a catalyst." Journal of Indian Chemical Society Vol. 85, Oct 2008 (2008): 1045–49. https://doi.org/10.5281/zenodo.5820698.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail</em> : rnunia@yahoo.com <em>Manuscript received 22 April 2008, accepted 16 July 2008</em> Sulphonation of 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7<em>H</em>-pyrazolo[4,3-<em>d</em>]pyrimidin-7-one (1) with chlorosulphonic acid affords 5-[(5-chlorosulphonyl-2-ethoxy)pyrimidin]-1-methyl-3-propyl-1 ,6-dihydro-7 <em>H</em>-pyrazolo[ 4,3-d]pyrimidin- 7-one (2). Compound (2) condensed with different β-diketones/β-ketoesters (3a-e) to obtain new β-diketones/ β-ketoesters (4a-e).

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5

Vlasov, Sergiy V., Sergiy M. Kovalenko, Pavlo E. Shynkarenko, Konstantin Yu Krolenko, and Vitaliy S. Vlasov. "Synthesis and antimicrobial evaluation of 3-(4-arylthieno[2,3-d]pyrimidin-2-yl)- 2H-chromen-2-ones." Heterocyclic Communications 24, no. 4 (2018): 237–40. http://dx.doi.org/10.1515/hc-2018-0013.

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AbstractSyntheses of 3-(4-arylthieno[2,3-d]pyrimidin-2-yl)-2H-chromen-2-ones 5 by the reaction of 2-iminocoumarin-3-carboxamides 1 with (2-aminothiophen-3-yl)(aryl)methanones 2 and by the alternative Suzuki coupling of 4-chlorothieno[2,3-d]pyrimidin-2-yl-2H-chromen-2-one 7 with arylboronic acids were developed. Compound 5d showed higher antimicrobial activity against Staphylococcus aureus than the reference drug streptomycin.

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6

Voeltera, Wolfgang, Mustafa M. El-Abadelahb, Salim S. Sabrib, and Monther A. Khanfar. "Synthesis and Properties of Biagra . A 5-(2,3-Dihydro-7-benzofuryl) Analog of Viagra®." Zeitschrift für Naturforschung B 54, no. 11 (1999): 1469–73. http://dx.doi.org/10.1515/znb-1999-1121.

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The synthesis and spectral properties (IR, MS, NMR) of a substituted 5-(2,3-dihydro-7- benzofuryl)pyrazolo[4,3-d]pyrimidin-7-one (2), an analog of Viagra® (1), are described. The generally applicable route involves interaction of 2,3-dihydro-7-benzofuranoyl chloride (3) with 4-amino-l-methyl-3-propyl-5-pyrazolecarboxamide (4), and the resulting bis-amide (5) is cyclized to the corresponding substituted pyrazolo[4,3-d]pyrimidin-7-one (6). Chlorosulfonylation of 6, followed by treatment with 1-methylpiperazine, furnished the title compound 2 (named Biagra). Preliminary experiments “associated wi

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7

Avasthi, Kamlakar, Lakshmi Shukla, Ruchir Kant, and Krishnan Ravikumar. "Folded conformations due to arene interactions in dissymmetric and symmetric butylidene-linker models based on pyrazolo[3,4-d]pyrimidine, purine and 7-deazapurine." Acta Crystallographica Section C Structural Chemistry 70, no. 6 (2014): 555–61. http://dx.doi.org/10.1107/s2053229614009449.

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The butylidene-linker models 1-[2-(2,6-dimethylsulfanyl-9H-purin-9-yl)-2-methylidenepropyl]-4,6-bis(methylsulfanyl)-1H-pyrazolo[3,4-d]pyrimidine, C18H20N8S4, (XI), 7,7′-(2-methylidenepropane-1,3-diyl)bis[3-methyl-2-methylsulfanyl-3H-pyrrolo[2,3-d]pyrimidin-4(7H)-one], C20H22N6O2S2, (XIV), and 7-[2-(4,6-dimethylsulfanyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-2-methylidenepropyl]-3-methyl-2-methylsulfanyl-3H-pyrrolo[2,3-d]pyrimidin-4(7H)-one, C19H21N7OS3, (XV), show folded conformations in solution, as shown by1H NMR analysis. This folding carries over to the crystalline state. Intramolecular π–π int

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8

Zhao, Jun-Feng, Yang-Gen Hu, Ming-Wu Ding, and Hong-Wu He. "5,6-Dianilino-3-(4-chlorophenyl)-3,6-dihydro-1,2,3-triazolo[4,5-d]pyrimidin-7-one." Acta Crystallographica Section E Structure Reports Online 61, no. 9 (2005): o2791—o2792. http://dx.doi.org/10.1107/s1600536805024074.

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9

Wang, Hong-Mei, Xiao-Hua Zeng, Zong-Qiu Hu, Gui-Hua Li, and Jia-Hua Tian. "6-Isopropyl-5-(3-nitrophenoxy)-3-phenyl-3H-1,2,3-triazolo[4,5-d]pyrimidin-7(6H)-one." Acta Crystallographica Section E Structure Reports Online 62, no. 11 (2006): o5038—o5040. http://dx.doi.org/10.1107/s1600536806042280.

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10

Deng, Shou-Heng, Hong-Mei Wang, Ping Chen, Jun-Kai Ma, and Feng-Jun Cao. "3-Benzyl-6-isopropyl-5-phenoxy-3H-1,2,3-triazolo[4,5-d]pyrimidin-7(6H)-one." Acta Crystallographica Section E Structure Reports Online 65, no. 11 (2009): o2730—o2731. http://dx.doi.org/10.1107/s160053680904118x.

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