Maqbool, Tahir, Misbahul Ain Khan, Muhammad Naeem Khan, Mark C. Elliott, Munawar Ali Munawar, Muhammad Nasrullah, Abdul Waheed Bhatti, Areesha Nazeer, and Whei-Oh Lin. “Pyrazolopyridines I: Synthesis of Some Pyrazolo[3,4-b]pyridine-4-Carboxylates”. Asian Journal of Chemistry 25, no. 14 (August 12, 2013): 7715–7718. Accessed July 22, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_15_12.