1. Núcleo de Química de Heterociclos (NUQUIMHE), Department of Chemistry, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
2. Department of Chemistry, Federal University of Maranhão (UFMA), São Luís, MA, Brazil
3. Núcleo de Química de Heterociclos (NUQUIMHE), Department of Engineering and Environmental Technology (DETA), Federal University of Santa Maria (UFSM), Frederico Westphalen Campus, RS, Brazil