1. UNESP – São Paulo State University, Faculdade de Ciências Farmacêuticas, C. Postal 502, 14801 – 902, Araraquara, SP, Brazil
2. UNESP – São Paulo State University, Instituto de Química de Araraquara, C. Postal 355, 14801 – 970, Araraquara, SP, Brazil
3. Buenos Aires University, Instituto de Oncologia, UBA, Buenos Aires, Argentina