1. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mahidol University, 447 Si Ayutthaya Road, Ratchathewi, Bangkok 10400, Thailand
2. Auckland Cancer Society Research Centre, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
3. School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
4. Scion (New Zealand Forest Research Institute), Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua 3010, New Zealand
5. School of Chemistry and Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, 30 Flemington Rd, Parkville, VIC 3052, Australia
6. School of Pharmacy and Bioengineering, Keele University, Newcastle-under-Lyme ST5 5BG, UK