1. Institute of Pharmaceutical Chemistry University of Szeged H-6720 Szeged Eötvös u. 6 Hungary
2. University of Szeged, I nterdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry H-6720 Szeged Eötvös u. 6 Hungary
3. MTA-SZTE Stereochemistry Research Group Hungarian Academy of Sciences H-6720 Szeged Eötvös u. 6 Hungary