1. Department of Chemistry, Université du Québec à Montréal, Montreal, Quebec H2X 2J6, Canada
2. Department of Zoology, Institute of Biology, University of Kassel, Kassel D-34132, Germany
3. Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
4. National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
5. Department of Biological and Chemical Sciences, University of the West Indies, Cave Hill Campus, Barbados BB11000, West Indies
6. Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602, United States
7. Chemistry Department, Heinrich-Heine-Universität Düsseldorf, Düsseldorf D-40225, Germany