BUTT, M.; KEMAL, R.; SALAM, A.; AKHTAR, A. ?SYNTHESIS OF HETERO-BICYCLIC COMPOUNDS Part-IX. Formation of 2,2-disubstituted 4,5-dioxo-pyridino [4,3-d] [1,3]dioxins. Biological Sciences - PJSIR, [S. l.], v. 40, n. 5-12, p. 1–4, 1997. Disponível em: https://v2.pjsir.org/index.php/biological-sciences/article/view/2339. Acesso em: 22 nov. 2024.