1. Institute of Pharmaceutical Chemistry University of Szeged Interdisciplinary Excellent Center Eötvös utca 6 H-6720 Szeged Hungary
2. Stereochemistry Research Group of the Hungarian Academy Science Eötvös utca 6 H-6720 Szeged Hungary
3. Interdisciplinary Centre of Natural Products University of Szeged Eötvös utca 6 H-6720 Szeged Hungary