Gultekin, Zeynep. “Palladium-Catalyzed Synthesis of 9-(2-Cyclopentenyl) Guanine”. Asian Journal of Chemistry 18, no. 2 (March 30, 2010): 1462–1466. Accessed October 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/21172.