1. ChemBio Lab, Barcelona Science
Park, Baldiri Reixac 10-12, 08028 Barcelona, Spain
2. School
of Chemistry, University of Kwa-Zulu-Natal, Private Bag X01, Scottsville, 3209 Durban, South Africa
3. Laboratory
of Organic Chemistry, Faculty of Pharmacy, University of Barcelona, Campus Diagonal, Av. de Joan XXIII, 27-31, 08028 Barcelona, Spain