1. Key Laboratory of Combinatory Biosynthesis and Drug Discovery (Ministry of Education)
2. School of Pharmaceutical Sciences
3. Wuhan University
4. Wuhan 430071, P. R. China
5. School of Chemistry and Biomedical Sciences Research Centre
6. University of St Andrews
7. St Andrews KY169ST, UK
8. Marine Biodiscovery Centre
9. Department of Chemistry
10. Meston Walk
11. University of Aberdeen
12. Aberdeen AB24 3UE, UK