1. Bezhin Rosko , 40 rue des Pêcheurs, F-29250 Santec , Brittany , France
2. Department of Biological Sciences, Faculty of Science , Kuwait University , Kuwait City , Kuwait
3. School of Biological Sciences , University of Aberdeen , Cruickshank Building, St Machar Drive, Aberdeen AB24 3UU , Scotland , UK
4. Marine Biodiscovery Centre, Department of Chemistry , University of Aberdeen , Aberdeen AB24 3UE , Scotland , UK
5. Department of Chemistry and Biochemistry , San Diego State University , San Diego , CA , 92182-1030 , USA