GULTEKIN, Zeynep. Palladium-Catalyzed Synthesis of 9-(2-Cyclopentenyl) Guanine. Asian Journal of Chemistry, [S. l.], v. 18, n. 2, p. 1462–1466, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/21172. Acesso em: 16 apr. 2025.