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Journal of Chemistry
Volume 2014, Article ID 430573, 14 pages
Research Article

Fluorine Substituted 1,2,4-Triazinones as Potential Anti-HIV-1 and CDK2 Inhibitors

Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia

Received 16 February 2014; Accepted 25 April 2014; Published 21 May 2014

Academic Editor: Stojan Stavber

Copyright © 2014 Mohammed S. I. Makki et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Fluorine substituted 1,2,4-triazinones have been synthesized via alkylation, amination, and/or oxidation of 6-(2-amino-5-fluorophenyl)-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one 1 and 4-fluoro-N-(4-fluoro-2-(5-oxo-3-thioxo-2,3,4,5-tetrahydro-1,2,4-triazin-6-yl)phenyl)benzamide 5 as possible anti-HIV-1 and CDK2 inhibitors. Alkylation on positions 2 and 4 in 1,2,4-triazinone gave compounds 6–8. Further modification was performed by selective alkylation and amination on position 3 to form compounds 9–15. However oxidation of 5 yielded compounds 16–18. Structures of the target compounds have been established by spectral analysis data. Five compounds (5, 11, 14, 16, and 17) have shown very good anti-HIV activity in MT-4 cells. Similarly, five compounds (1, 3, and 14–16) have exhibited very significant CDK2 inhibition activity. Compounds 14 and 16 were found to have dual anti-HIV and anticancer activities.