1. MTA-SZTE Stereochemistry Research Group; University of Szeged; 6720 Szeged, Dóm tér 8 Hungary
2. Department of Organic Chemistry; University of Szeged; 6720 Szeged, Dóm tér 8 Hungary
3. Institute of Pharmaceutical Chemistry; University of Szeged; 6720 Szeged, Eötvös utca 6 Hungary