SONG, J.H.; BAE, S.M.; SHIN, H.Y.; JUNG, D.I.; CHO, J.H. Synthesis of Spirohydantoins and Schiff Bases of Indenoquinoxalinones and Indenopyridopyrazinones. Asian Journal of Chemistry, [S. l.], v. 32, n. 8, p. 1925–1930, 2020. DOI: 10.14233/ajchem.2020.22679. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/32_8_16. Acesso em: 7 may. 2024.