1. Department of Biomedicinal Chemistry, Inje University, Gimhae, Korea
2. Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, United States
3. Departamento de Quimica, UAM-Iztapalapa, Av. San Rafael Atlixco # 186, 09340 Mexico D.F., Mexico
4. Instituto Mexicano del Petroleo, Eje Central # 152, 07730 Mexico D.F., Mexico