Swahn, Britt-Marie; Huerta, Fernando; Kallin, Elisabet; Malmstroem, Jonas; Weigelt, Tatjana; Viklund, Jenny; Womack, Patrick; Xue, Yafeng; Oehberg, Liselotte Bioorganic and Medicinal Chemistry Letters, 2005 , vol. 15, # 22 p. 5095 - 5099