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A One-pot Synthesis of Novel Derivatives of Oxadiazine-4-thione, and its Antibacterial Activity, and Molecular Modeling Studies

[ Vol. 17 , Issue. 3 ]

Author(s):

Magda H. Abdellattif*, Ola Abu Ali , Mohamed M.H. Arief and Mostafa A. Hussien   Pages 230 - 242 ( 13 )

Abstract:


Background: The synthesis of a novel series of oxadiazine-4-thione biological molecules was executed through the incorporation of the ortho-, meta-, and para-benzoyl isocyanates to the tetrabromophthalimide nucleus.

Objectives: A one-pot multicomponent methodology in a solvent-free microwave irradiation environment was employed to afford this series of oxadiazine-4-thione, deriving a comparison with the conventional method. Subsequently, the yielded derivatives were subjected to further biological assessment.

Materials and Methods: The acquired results denoted that the one-pot procedure, which delivered products in a 2-4 min. interval, was more efficient in evaluation against the classical method, which consumed a 1-2:30 hr. interval.

Results: The application of the antibacterial analyses was subjected to all the compounds, resulting in molecules 6a and 6c demonstrating the highest activity regarding Aspergillus Favus; molecules 5b and 5c exhibiting an equivalent level of activity towards E-coli and Fusarium Moniliform; and molecules 4b, 4c, 5b, and 5c presenting an identical level of activity to the aforementioned derivatives involving Staphylococcus.

Concluison: Molecular modeling studies by the MOE, the preceding antibacterial behavior was conducted to advocate the newly prepared compounds. Moreover, the spectroscopic approaches were exploited to verify and establish the structures and mechanisms of the synthesized derivatives’ reactions.

Keywords:

Green protocol, thiones, tetrabromophthalimide, antibacterial activities, modeling, [4+2] cyclo-addition.

Affiliation:

Chemistry Department, Deanship of scientific research, Faculty of Science, Taif University, Taif, Chemistry Department, Faculty of Science, Taif University, Taif, Chemistry Department, Faculty of Science, Benha University, Benha, Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589

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