2023. Synthesis, characterization and Theoretical study of some 2-Oxopyridine Carbonitrile derivatives that contain tetrazole ring and evaluation of their Biological activity. University of Thi-Qar Journal of Science. 10, 2 (Dec. 2023), 235–241. DOI:https://doi.org/10.32792/utq/utjsci/v10i2.1145.