Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral Activity

A series of pyrimidine conjugates containing a fragment of racemic 7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and its (<i>S</i>)-enantiomer attached via a 6-aminohexanoyl fragment were synthesized by the reaction of nucleophilic substitution of chlorine in v...

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Main Authors: Victor P. Krasnov, Vera V. Musiyak, Galina L. Levit, Dmitry A. Gruzdev, Valeriya L. Andronova, Georgii A. Galegov, Iana R. Orshanskaya, Ekaterina O. Sinegubova, Vladimir V. Zarubaev, Valery N. Charushin
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/27/13/4236
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author Victor P. Krasnov
Vera V. Musiyak
Galina L. Levit
Dmitry A. Gruzdev
Valeriya L. Andronova
Georgii A. Galegov
Iana R. Orshanskaya
Ekaterina O. Sinegubova
Vladimir V. Zarubaev
Valery N. Charushin
author_facet Victor P. Krasnov
Vera V. Musiyak
Galina L. Levit
Dmitry A. Gruzdev
Valeriya L. Andronova
Georgii A. Galegov
Iana R. Orshanskaya
Ekaterina O. Sinegubova
Vladimir V. Zarubaev
Valery N. Charushin
author_sort Victor P. Krasnov
collection DOAJ
description A series of pyrimidine conjugates containing a fragment of racemic 7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and its (<i>S</i>)-enantiomer attached via a 6-aminohexanoyl fragment were synthesized by the reaction of nucleophilic substitution of chlorine in various chloropyrimidines. The structures of the synthesized compounds were confirmed by <sup>1</sup>H, <sup>19</sup>F, and <sup>13</sup>C NMR spectral data. Enantiomeric purity of optically active derivatives was confirmed by chiral HPLC. Antiviral evaluation of the synthesized compounds has shown that the replacement of purine with a pyrimidine fragment leads to a decrease in the anti-herpesvirus activity compared to the lead compound, purine conjugate. The studied compounds did not exhibit significant activity against influenza A (H1N1) virus.
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spelling doaj.art-50c2c03af8af4dc3bb1b2360638f7deb2023-12-03T14:14:00ZengMDPI AGMolecules1420-30492022-06-012713423610.3390/molecules27134236Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral ActivityVictor P. Krasnov0Vera V. Musiyak1Galina L. Levit2Dmitry A. Gruzdev3Valeriya L. Andronova4Georgii A. Galegov5Iana R. Orshanskaya6Ekaterina O. Sinegubova7Vladimir V. Zarubaev8Valery N. Charushin9Postovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, RussiaPostovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, RussiaPostovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, RussiaPostovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, RussiaIvanovsky Institute of Virology, Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow 123098, RussiaIvanovsky Institute of Virology, Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health of the Russian Federation, Moscow 123098, RussiaSaint Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Saint Petersburg 197101, RussiaSaint Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Saint Petersburg 197101, RussiaSaint Petersburg Pasteur Research Institute of Epidemiology and Microbiology, Saint Petersburg 197101, RussiaPostovsky Institute of Organic Synthesis, Russian Academy of Sciences (Ural Branch), Ekaterinburg 620108, RussiaA series of pyrimidine conjugates containing a fragment of racemic 7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and its (<i>S</i>)-enantiomer attached via a 6-aminohexanoyl fragment were synthesized by the reaction of nucleophilic substitution of chlorine in various chloropyrimidines. The structures of the synthesized compounds were confirmed by <sup>1</sup>H, <sup>19</sup>F, and <sup>13</sup>C NMR spectral data. Enantiomeric purity of optically active derivatives was confirmed by chiral HPLC. Antiviral evaluation of the synthesized compounds has shown that the replacement of purine with a pyrimidine fragment leads to a decrease in the anti-herpesvirus activity compared to the lead compound, purine conjugate. The studied compounds did not exhibit significant activity against influenza A (H1N1) virus.https://www.mdpi.com/1420-3049/27/13/4236pyrimidinepurine7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazineantiviral activityHSV-1influenza virus
spellingShingle Victor P. Krasnov
Vera V. Musiyak
Galina L. Levit
Dmitry A. Gruzdev
Valeriya L. Andronova
Georgii A. Galegov
Iana R. Orshanskaya
Ekaterina O. Sinegubova
Vladimir V. Zarubaev
Valery N. Charushin
Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral Activity
Molecules
pyrimidine
purine
7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine
antiviral activity
HSV-1
influenza virus
title Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral Activity
title_full Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral Activity
title_fullStr Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral Activity
title_full_unstemmed Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral Activity
title_short Synthesis of Pyrimidine Conjugates with 4-(6-Amino-hexanoyl)-7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine and Evaluation of Their Antiviral Activity
title_sort synthesis of pyrimidine conjugates with 4 6 amino hexanoyl 7 8 difluoro 3 4 dihydro 3 methyl 2 i h i 1 4 benzoxazine and evaluation of their antiviral activity
topic pyrimidine
purine
7,8-difluoro-3,4-dihydro-3-methyl-2<i>H</i>-[1,4]benzoxazine
antiviral activity
HSV-1
influenza virus
url https://www.mdpi.com/1420-3049/27/13/4236
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