Serra, Silvia; Delogu, Giovanna; Casu, Laura; Vazquez-Rodriguez, Saleta; Santana, Lourdes; Uriarte, Eugenio; Chicca, Andrea; Gertsch, Juerg Bioorganic and Medicinal Chemistry Letters, 2012 , vol. 22, # 18 p. 5791 - 5794,4