Artis, Dean R.; Brotherton-Pleiss, Christine; Pease, Joseph H.B.; Lin, Clara J.; Ferla, Steve W.; Newman, Sherry R.; Bhakta, Sunil; Ostrelich, Helene; Jarnagin, Kurt Bioorganic and Medicinal Chemistry Letters, 2000 , vol. 10, # 21 p. 2421 - 2425