1. Department
of Medicinal Chemistry, Organic Pharmaceutical Chemistry, BMC, Uppsala University, Box
574, SE-751 23 Uppsala, Sweden
2. Carbon
Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience
Center (iNANO) and Department of Chemistry, Aarhus University, Gustav
Wieds Vej 14, 8000 Aarhus C, Denmark