1. Department of Organic Chemistry; Semmelweis University; Hőgyes Endre u. 7 Budapest H-1092 Hungary
2. Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences; Hungarian Academy of Sciences; Magyar tudósok körútja 2 Budapest H-1117 Hungary
3. Institute of Organic Chemistry and Biochemistry; Technical University of Munich; Lichtenbergstr. 4 Garching D-85747 Germany
4. Institute of Pharmacognosy; University of Szeged; Eötvös u. 6 Szeged H-6720 Hungary
5. Dipartimento di Chimica; Università degli Studi di Milano; Via Camillo Golgi, 19 Milan 20133 Italy
6. Interdisciplinary Centre for Natural Products; University of Szeged; Eötvös u. 6 Szeged H-6720 Hungary
7. Servier Research Institute of Medicinal Chemistry (SRIMC); Záhony utca 7 Budapest H-1031 Hungary
8. Department of Inorganic and Analytical Chemistry, NMR Group; Budapest University of Technology and Economics; St. Gellért tér 4 Budapest H-1111 Hungary