1. Department of Biomedicine University of Bergen Jonas Lies Vei 91 5020 Bergen Norway
2. Department of Chemistry University of Bergen Allégaten 41 5007 Bergen Norway
3. Institute of Pharmacy and Biochemistry Johannes Gutenberg University Staudingerweg 5 55128 Mainz Germany
4. Department of Organic Synthesis & Process Chemistry CSIR-Indian Institute of Chemical Technology Tarnaka Hyderabad 500007 India