1. Department of ChemistryUniversidade Federal de Viçosa Viçosa MG Brazil
2. Department of ChemistryUniversidade Federal de Minas Gerais Belo Horizonte MG Brazil
3. Centre for Natural Products Discovery (CNPD), Medicinal Chemistry & Natural Product Research Group, School of Pharmacy & Biomolecular SciencesLiverpool John Moores University Liverpool UK