1. School
of Pharmacy, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
2. School
of Pharmacy, Centre for Biomolecular Sciences, The University of Nottingham, University
Park, Nottingham, Nottinghamshire NG72RD, U.K.
3. Department
of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia