1. a Department of Organic Chemistry, Faculty of Chem. Eng. , Technology University Zagreb , Marulicev trg 20, 10000, Zagreb, Croatia
2. b Department of Organic Chemistry and Biochemistry , “Ruder Boškovic” Institute , Bijenicka cesta 54 P.O. Box 1016, 10001, Zagreb, Croatia
3. c Laboratory of General and Inorganic Chemistry, Faculty of Science , University of Zagreb , P.P.Box 153, Ul. Kralja Zvonimira 8, 10000, Zagreb, Croatia