1. Oxford Centre for Molecular Sciences and the Department of Chemistry; Chemistry Research Laboratory; Mansfield Road Oxford OX1 3TA UK
2. Present Address: Oxford Nanopore Technologies, Oxford Science Park; OX4 4GA UK
3. Present Address: The Brattle Group; Level 15 5 Martin Place Sydney, NSW 2000 Australia
4. Present Address: Immunocore Limited; 101 Park Drive, Milton Park Abingdon OX14 4RY UK
5. Department of Chemistry and Pharmacy; University of Erlangen-Nuremberg; Egerlandstraße 1 91058 Erlangen Germany
6. School of Chemistry; The University of Sydney, NSW; 2006 Australia