Affiliation: | 1. Laboratory of Synthesis of Natural Products and Drugs, Institute of Chemistry, University of Campinas, PO Box 6154, 13083-970, Campinas, SP, Brazil;2. Faculty of Pharmaceutical Sciences, University of Campinas, Rua Cândido Portinari, 200, 13083-971, Campinas, SP, Brazil;3. Instituto Federal de Ciência, Tecnologia e Educação de Minas Gerais, Belo Horizonte, MG, Brazil |