khodjaniyazov, hamid utkirovich. “SYNTHESIS AND NMR SPECTRAL CHARACTERIZATION OF NOVEL 2,3-POLYMETHYLENEPYRIDO[2,3-D]PYRIMIDIN-4-ONES”. JOURNAL OF ADVANCES IN CHEMISTRY 11, no. 8 (October 16, 2015): 3873–3875. Accessed November 23, 2024. https://rajpub.com/index.php/jac/article/view/2193.