1. Instituto de Química, Universidade Federal de Uberlândia, Av. João Naves de Ávila, 2121, Minas Gerais, Uberlândia, MG 38400-902, Brasil
2. Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
3. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia