Oost, Thorsten; Backfisch, Gisela; Bhowmik, Swati; Van Gaalen, Marcel M.; Geneste, Herve; Hornberger, Wilfried; Lubisch, Wilfried; Netz, Astrid; Unger, Liliane; Wernet, Wolfgang Bioorganic and Medicinal Chemistry Letters, 2011 , vol. 21, # 12 p. 3828 - 3831