1. Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
2. Department of Biocatalysis & Isotope Chemistry, Almac, 20 Seagoe Industrial Estate, Craigavon, BT63 5QD, UK
3. Arran Chemical Company Limited, Unit 1 Monksland Industrial Estate, Athlone, Co. Roscommon, Ireland