1. Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
2. MTA-SZTE Stereochemistry Research Group; Hungarian Academy of Sciences; Eötvös u. 6 6720 Szeged Hungary
3. Institute of Pharmacognosy; University of Szeged; Eötvös u. 6 6720 Szeged Hungary
4. Graduate Institute of Natural Products; College of Pharmacy; Kaohsiung Medical University; Shih-Chuan 1 Rd. 100 807 Kaohsiung Taiwan, R.O.C.
5. Interdisciplinary Centre of Natural Products; University of Szeged; Eötvös u. 6 6720 Szeged Hungary