1. Department of Organic Chemistry, Gedeon Richter Plc. Budapest, 10., Gyömrői út 30-32, 10. Pf. 27. H-1475, Budapest, Hungary
2. Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, H-1521, Műegyetem rkp.3,
Budapest, P.O. Box: 91, H-1111 Hungary