1. Department of Chemistry Faculty of Natural Sciences Matej Bel University Tajovského 40 97401 Banska Bystrica Slovakia
2. Department of Molecular Probes and Prodrugs Institute of Bioorganic Chemistry Polish Academy of Sciences Noskowskiego 12/14 61-704 Poznań Poland
3. Wallenberg Wood Science Center Department of Fibre and Polymer Technology KTH Royal Institute of Technology Teknikringen 56–58 SE-10044 Stockholm Sweden
4. Division of Wood Chemistry and Pulp Technology Department of Fiber and Polymer Technology School of Chemistry Biotechnology and Health KTH Royal Institute of Technology Teknikringen 56–58 SE-100 44 Stockholm Sweden