Study of Copper Based Heteropolysalts as Catalysts in the Efficiency of Synthesis of 5-Ethoxycarbonyl-4-Phenyl-6-Methyl-3,4-Dihydropyridin-2(1H)-One. EPSTEM [Internet]. 2022 Dec. 21 [cited 2026 Mar. 22];20:77-83. Available from: https://epstem.net/index.php/epstem/article/view/455