[1] Univ Azteca, Div Int Programs, Chalco 56600, Mexico
[2] Queensland Univ Technol, Sch Chem & Phys, Brisbane, Qld 4000, Australia
[3] Univ Sri Jayewardenepura, Fac Med, Dept Obstet & Gynaecol, Nugegoda, Sri Lanka
[4] MedChem Lab, Microbiol Sect, Moratuwa 10400, Sri Lanka