S. Ismmaeel S. Synthesis of five membered ring hetero cyclic compounds derived from methyl-6- methyl-2- oxo-4-substituted 1,2,3,4- tetrahydro pyrimidine-5-carboxylate. JES [Internet]. 2018 Mar. 1 [cited 2025 Sep. 10];27(2):1-14. Available from: https://edusj.uomosul.edu.iq/index.php/edusj/article/view/41974