1. Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares and Departamento de Química Orgánica, Campus Vida, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
2. Department of Hospital Pharmacy, University of Toyama, Toyama 930-0194, Japan
3. Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford, OX1 3TA, UK