Liu, Rui Dong, and Jian Zhang. “Synthesis and Optimization of Methyl 5-Acetyl-1,4-Dihydro-2,6-Dimethyl-4-(substituent benzylidene)pyridine-3-Carboxylate”. European Journal of Chemistry 2, no. 3 (September 30, 2011): 308–310. Accessed April 28, 2024. https://www.eurjchem.com/index.php/eurjchem/article/view/126.