Sami, Mustafa. H., and Shaymaa. K. Younis. “Selective Approaches to Synthesize a New Series of Fused 4-Amino Pyrimidine Derivatives by Using of 4- Amino Nicotino Nitrile As an Effective Precursor”. International journal of health sciences 6, no. S9 (September 30, 2022): 2832–2843. Accessed April 13, 2025. https://sciencescholar.us/journal/index.php/ijhs/article/view/13134.