1. Institute of Organic Chemistry with Centre of PhytochemistryBulgarian Academy of Sciencies Acad. G. Bontchev str. Bl. 9 1113 Sofia Bulgaria
2. CERENA, Instituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais, 1 Lisboa Portugal
3. Research Institute for Medicines (iMed.ULisboa) Faculty of PharmacyUniversidade de Lisboa Av. Prof. Gama Pinto 1649-003 Lisboa Portugal