1. Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 20, P.O. Box 177, HR-10000 Zagreb, Croatia, Division of Molecular Medicine and Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička cesta 54, P.O. Box 1016, HR-10000 Zagreb, Croatia, and Faculty of Textile Technology, University of Zagreb, Prilaz baruna Filipovića 28a, HR-10000, Zagreb, Croatia